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Colasurdo M, Chen H, Gandhi D. MR Imaging Techniques for Acute Ischemic Stroke and Delayed Cerebral Ischemia Following Subarachnoid Hemorrhage. Neuroimaging Clin N Am 2024; 34:203-214. [PMID: 38604705 DOI: 10.1016/j.nic.2023.12.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/13/2024]
Abstract
Acute ischemic stroke (AIS) is a leading cause of death and disability worldwide, and its prevalence is expected to increase with global population aging and the burgeoning obesity epidemic. Clinical care for AIS has evolved during the past 3 decades, and it comprises of 3 major tenants: (1) timely recanalization of occluded vessels with intravenous thrombolysis or endovascular thrombectomy, (2) prompt initiation of antithrombotic agents to prevent stroke recurrences, and (3) poststroke supportive care and rehabilitation. In this article, we summarize commonly used MR sequences for AIS and DCI and highlight their clinical applications.
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Affiliation(s)
- Marco Colasurdo
- Division of Interventional Neuroradiology, Department of Diagnostic Radiology, University of Maryland School of Medicine, 22 South Green Street, Baltimore, MD 21201, USA; Department of Interventional Radiology, Oregon Health and Science University, 3181 SW Sam Jackson Park Road, Portland, OR 97239, USA
| | - Huanwen Chen
- Division of Interventional Neuroradiology, Department of Diagnostic Radiology, University of Maryland School of Medicine, 22 South Green Street, Baltimore, MD 21201, USA; National Institute for Neurological Disorders and Stroke, National Institutes of Health, 10 center drive, Bethesda, MD 20892, USA; Department of Neurology, MedStar Georgetown University Hospital, Washington, DC 20007, USA
| | - Dheeraj Gandhi
- Division of Interventional Neuroradiology, Department of Diagnostic Radiology, University of Maryland School of Medicine, 22 South Green Street, Baltimore, MD 21201, USA; Department of Neurology, University of Maryland School of Medicine, 22 South Green Street, Baltimore, MD 21201, USA; Department of Neurosurgery, University of Maryland School of Medicine, 22 South Green Street, Baltimore, MD 21201, USA.
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Chaleckas E, Putnynaite V, Lapinskiene I, Preiksaitis A, Serpytis M, Rocka S, Bartusis L, Petkus V, Ragauskas A. Impaired cerebral autoregulation detected in early prevasospasm period is associated with unfavorable outcome after spontaneous subarachnoid hemorrhage: an observational prospective pilot study. Ultrasound J 2024; 16:24. [PMID: 38619783 PMCID: PMC11018731 DOI: 10.1186/s13089-024-00371-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Accepted: 03/11/2024] [Indexed: 04/16/2024] Open
Abstract
BACKGROUND Subarachnoid hemorrhage (SAH) patients with cerebral autoregulation (CA) impairment at an early post-SAH period are at high risk of unfavorable outcomes due to delayed cerebral ischemia (DCI) or other complications. Limited evidence exists for an association between early-stage CA impairments and SAH patient outcomes. The objective of this prospective study was to explore associations between CA impairments detected in early post-SAH snapshot examinations and patient outcomes. METHODS The pilot observational study included 29 SAH patients whose CA status was estimated 2-3 days after spontaneous aneurysm rupture and a control group of 15 healthy volunteers for comparison. Inflatable leg recovery boots (reboots.com, Germany) were used for the safe controlled generation of arterial blood pressure (ABP) changes necessary for reliable CA examination. At least 5 inflation‒deflation cycles of leg recovery boots with a 2-3 min period were used during examinations. CA status was assessed according to the delay time (∆TCBFV) measured between ABP(t) and cerebral blood flow velocity (CBFV(t)) signals during artificially induced ABP changes at boot deflation cycle. CBFV was measured in middle cerebral artery by using transcranial Doppler device. RESULTS Statistically significant differences in ∆TCBFV were found between SAH patients with unfavorable outcomes (∆TCBFV = 1.37 ± 1.23 s) and those with favorable outcomes (∆TCBFV = 2.86 ± 0.99 s) (p < 0.001). Early assessment of baroreflex sensitivity (BRS) during the deflation cycle showed statistically significant differences between the DCI and non-DCI patient groups (p = 0.039). CONCLUSIONS A relatively small delay of ∆TCBFV <1.6 s between CBFV(t) and ABP(t) waves could be an early warning sign associated with unfavorable outcomes in SAH patients. The BRS during boot deflation can be used as a biomarker for the prediction of DCI. TRIAL REGISTRATION ClinicalTrials.gov Identifier: NCT06028906. Registered 31 August 2023 - Retrospectively registered, https://www. CLINICALTRIALS gov/study/NCT06028906 .
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Affiliation(s)
- Edvinas Chaleckas
- Health Telematics Science Institute, Kaunas University of Technology, K. Barsausko str. 59, Kaunas, LT-51423, Lithuania
| | - Vilma Putnynaite
- Health Telematics Science Institute, Kaunas University of Technology, K. Barsausko str. 59, Kaunas, LT-51423, Lithuania
| | - Indre Lapinskiene
- Clinic of Anesthesiology and Intensive Care, Faculty of Medicine, Vilnius University, Vilnius, Lithuania
- Vilnius University Hospital Santaros Klinikos, Vilnius, Lithuania
| | - Aidanas Preiksaitis
- Clinic of Neurology and Neurosurgery, Faculty of Medicine, Vilnius University, Vilnius, Lithuania
- Vilnius University Hospital Santaros Klinikos, Vilnius, Lithuania
| | - Mindaugas Serpytis
- Clinic of Anesthesiology and Intensive Care, Faculty of Medicine, Vilnius University, Vilnius, Lithuania
- Vilnius University Hospital Santaros Klinikos, Vilnius, Lithuania
| | - Saulius Rocka
- Clinic of Neurology and Neurosurgery, Faculty of Medicine, Vilnius University, Vilnius, Lithuania
- Vilnius University Hospital Santaros Klinikos, Vilnius, Lithuania
| | - Laimonas Bartusis
- Health Telematics Science Institute, Kaunas University of Technology, K. Barsausko str. 59, Kaunas, LT-51423, Lithuania
| | - Vytautas Petkus
- Health Telematics Science Institute, Kaunas University of Technology, K. Barsausko str. 59, Kaunas, LT-51423, Lithuania.
| | - Arminas Ragauskas
- Health Telematics Science Institute, Kaunas University of Technology, K. Barsausko str. 59, Kaunas, LT-51423, Lithuania
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Klepinowski T, Pala B, Pettersson SD, Łątka K, Taterra D, Ogilvy CS, Sagan L. Differential DNA methylation associated with delayed cerebral ischemia after aneurysmal subarachnoid hemorrhage: a systematic review. Neurosurg Rev 2024; 47:144. [PMID: 38594575 PMCID: PMC11003906 DOI: 10.1007/s10143-024-02381-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2024] [Revised: 03/25/2024] [Accepted: 03/30/2024] [Indexed: 04/11/2024]
Abstract
Recent studies suggest that differential DNA methylation could play a role in the mechanism of cerebral vasospasm (CVS) and delayed cerebral ischemia (DCI) after aneurysmal subarachnoid hemorrhage (aSAH). Considering the significance of this matter and a lack of effective prophylaxis against DCI, we aim to summarize the current state of knowledge regarding their associations with DNA methylation and identify the gaps for a future trial. PubMed MEDLINE, Scopus, and Web of Science were searched by two authors in three waves for relevant DNA methylation association studies in DCI after aSAH. PRISMA checklist was followed for a systematic structure. STROBE statement was used to assess the quality and risk of bias within studies. This research was funded by the National Science Centre, Poland (grant number 2021/41/N/NZ2/00844). Of 70 records, 7 peer-reviewed articles met the eligibility criteria. Five studies used a candidate gene approach, three were epigenome-wide association studies (EWAS), one utilized bioinformatics of the previous EWAS, with two studies using more than one approach. Methylation status of four cytosine-guanine dinucleotides (CpGs) related to four distinct genes (ITPR3, HAMP, INSR, CDHR5) have been found significantly or suggestively associated with DCI after aSAH. Analysis of epigenetic clocks yielded significant association of lower age acceleration with radiological CVS but not with DCI. Hub genes for hypermethylation (VHL, KIF3A, KIFAP3, RACGAP1, OPRM1) and hypomethylation (ALB, IL5) in DCI have been indicated through bioinformatics analysis. As none of the CpGs overlapped across the studies, meta-analysis was not applicable. The identified methylation sites might potentially serve as a biomarker for early diagnosis of DCI after aSAH in future. However, a lack of overlapping results prompts the need for large-scale multicenter studies. Challenges and prospects are discussed.
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Affiliation(s)
- Tomasz Klepinowski
- Department of Neurosurgery, Pomeranian Medical University Hospital No. 1, Szczecin, Poland.
| | - Bartłomiej Pala
- Department of Neurosurgery, Pomeranian Medical University Hospital No. 1, Szczecin, Poland
| | - Samuel D Pettersson
- Neurosurgical Service, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - Kajetan Łątka
- Department of Neurology, St Hedwig's Regional Specialist Hospital, Institute of Medical Sciences, University of Opole, Opole, Poland
| | - Dominik Taterra
- Department of Orthopedics and Rehabilitation, Jagiellonian University Medical College, Zakopane, Poland
| | - Christopher S Ogilvy
- Neurosurgical Service, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - Leszek Sagan
- Department of Neurosurgery, Pomeranian Medical University Hospital No. 1, Szczecin, Poland
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Li T, Lu J, Li R, Lin F, Chen Y, Yang J, Han H, Wang K, Wang S, Zhao Y, Chen X. Elevated cortical blood flow insufficiency volume as a predictor of adverse outcomes in aneurysmal subarachnoid hemorrhage: a large prospective quantitative computed tomography perfusion study. Eur J Radiol 2024; 175:111456. [PMID: 38640823 DOI: 10.1016/j.ejrad.2024.111456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2024] [Revised: 03/02/2024] [Accepted: 04/08/2024] [Indexed: 04/21/2024]
Abstract
PURPOSE Early hypoperfusion changes exist in patients with aneurysmal subarachnoid hemorrhage (aSAH). We aimed to investigate a readily obtainable quantitative computed tomography perfusion (CTP) parameter that could assist in quickly identifying patients at risk of delayed cerebral ischemia (DCI) and poor 90-day functional outcomes on admission. METHODS We prospectively collected data between 2021.04 and 2022.12. Preoperative CTP data were post-processed using RAPID software. The cortical blood flow insufficiency (CBFI) was defined as Time-to-maximum > 4.0 s. Patients were categorized into four groups according to CBFI volume distribution. To minimize differences among the groups, we employed stabilized inverse probability of treatment weighting (sIPTW). The primary outcome was DCI and poor 90-day functional outcomes (modified Rankin Scale, 3-6) was the secondary outcome. Multivariable Cox or Logistic analysis were performed to estimate the association between CBFI volume and the study outcomes, both before and after sIPTW. RESULTS At baseline, the mean (SD) age of the 493 participants was 55.0 (11.8) years, and 299 (60.6%) were female. One hundred and seven participants with DCI and eighty-six participants with poor 90-day functional outcomes were identified. After sIPTW, CBFI volume demonstrated a significant association with DCI (Cox regression: Group 4 versus Group 1, HR 3.69, 95% CI 1.84-7.01) and poor 90-day functional outcomes (Logistic regression: Group 4 versus Group 1, OR 4.61, 95% CI 2.01-12.50). CONCLUSION In this study, an elevated preoperative CBFI volume was associated with adverse outcomes in aSAH patients. More well-designed studies are needed to confirm this association.
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Affiliation(s)
- Tu Li
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Junlin Lu
- Department of Neurosurgery, West China Hospital, Sichuan University, Sichuan, China
| | - Runting Li
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Fa Lin
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Yu Chen
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Jun Yang
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Heze Han
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Ke Wang
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Shuo Wang
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China; China National Clinical Research Center for Neurological Diseases, Beijing, China; Stroke Center, Beijing Institute for Brain Disorders, Beijing, China; Beijing Key Laboratory of Translational Medicine for Cerebrovascular Disease, Beijing, China
| | - Yuanli Zhao
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China; China National Clinical Research Center for Neurological Diseases, Beijing, China; Stroke Center, Beijing Institute for Brain Disorders, Beijing, China; Beijing Key Laboratory of Translational Medicine for Cerebrovascular Disease, Beijing, China
| | - Xiaolin Chen
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China; Stroke Center, Beijing Institute for Brain Disorders, Beijing, China; Beijing Key Laboratory of Translational Medicine for Cerebrovascular Disease, Beijing, China.
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Wang X, Gan Q, You C, Ma L. Effect of Statin Treatment in Patients with Aneurysmal Subarachnoid Hemorrhage: A Network Meta-Analysis. Neurocrit Care 2024:10.1007/s12028-024-01957-9. [PMID: 38565835 DOI: 10.1007/s12028-024-01957-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Accepted: 02/06/2024] [Indexed: 04/04/2024]
Abstract
BACKGROUND There are knowledge gaps regarding the relative efficacy of statins for aneurysmal subarachnoid hemorrhage (aSAH). This study aims to examine the comparative effectiveness and determine the ranking of different statins with network meta‑analysis in patients with aSAH. METHODS MEDLINE, Embase, Pubmed, and Cochrane Central Register of Controlled Trials were searched from database inception until December 15, 2022. Outcomes included delayed cerebral ischemia (DCI), functional recovery, and mortality. Relative risk (RRs) ratios and associated 95% confidence intervals (CIs) were estimated. The values derived from surface under the cumulative ranking curve were obtained to rank the treatment hierarchy in the analysis. RESULTS We identified 13 trials involving 1,885 patients. Atorvastatin 20 mg (RR 0.68, 95% CI 0.53-0.86), pravastatin 40 mg (RR 0.51, 95% CI 0.31-0.77), and simvastatin 80 mg (RR 0.54, 95% CI 0.40-0.70) were superior to the placebo in preventing DCI. Additionally, simvastatin 80 mg (RR 0.60, 95% CI 0.42-0.84) and pravastatin 40 mg (RR 0.56, 95% CI 0.32-0.93) were associated with a decreased risk of DCI than simvastatin 40 mg. Comparisons across treatment durations suggested that short-term (RR 0.62, 95% CI 0.50-0.76) statin therapy reduced risk of DCI. CONCLUSIONS Simvastatin 80 mg might be the most effective intervention in reducing DCI. Additionally, short-term therapy might provide more benefits. Further research with longer follow-up is warranted to validate the current findings in patients with aSAH who are at high risk of DCI.
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Affiliation(s)
- Xing Wang
- Department of Neurosurgery, West China Hospital, Sichuan University, No. 37, Guo Xue Xiang, Chengdu, 610041, Sichuan, People's Republic of China
| | - Qi Gan
- Department of Neurosurgery, West China Hospital, Sichuan University, No. 37, Guo Xue Xiang, Chengdu, 610041, Sichuan, People's Republic of China
| | - Chao You
- Department of Neurosurgery, West China Hospital, Sichuan University, No. 37, Guo Xue Xiang, Chengdu, 610041, Sichuan, People's Republic of China.
- West China Brain Research Centre, Sichuan University, Chengdu, 610041, Sichuan, People's Republic of China.
| | - Lu Ma
- Department of Neurosurgery, West China Hospital, Sichuan University, No. 37, Guo Xue Xiang, Chengdu, 610041, Sichuan, People's Republic of China
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Zhou Y, Li R, Wang K, Lin F, Chen Y, Yang J, Han H, Li T, Jia Y, Yuan K, Zhang H, Li R, Li Z, Zhao Y, Hao Q, Chen X, Zhao Y. A retrospective study on the relationship between serum electrolyte disorder and delayed cerebral infarction after aneurysmal subarachnoid hemorrhage. J Stroke Cerebrovasc Dis 2024; 33:107579. [PMID: 38325032 DOI: 10.1016/j.jstrokecerebrovasdis.2024.107579] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Revised: 01/07/2024] [Accepted: 01/11/2024] [Indexed: 02/09/2024] Open
Abstract
OBJECTIVE Delayed cerebral ischemia (DCI)-induced cerebral infarction is a major cause of adverse neurological outcomes following aneurysmal subarachnoid hemorrhage (aSAH). This study aimed to investigate the relationship between postoperative serum electrolyte levels and DCI in patients with aSAH. MATERIALS AND METHODS We analyzed the data of patients with aSAH between 2015 and 2022. The patients were classified into two groups according to whether they experienced DCI. Electrolyte levels were categorized into three groups based on the normal ranges for electrolytes. Logistic regression models were used to study the relationship between electrolyte levels and DCI. Another logistic regression analysis was conducted to explore the relationship between the different severity levels of statistically significant indicators and DCI. A restrictive cubic spline model was adopted to assess the potential linear relationship between electrolytes and DCI. Subsequently, sensitivity analysis was performed to assess the impact of collinearity among ions. Finally, subgroup analysis was performed. RESULTS This study included 1,099 patients. Patients with hyperchloremia were more prone to DCI than those with normal chloride levels. Subsequently, excluding the population with hypochloremia, both mild and severe hyperchloremia were found to be associated with an increased risk of DCI compared with normal chloride levels. Within the framework of a restrictive cubic spline, our findings revealed an increased incidence of DCI (P for nonlinear = 0.735) as chloride levels increased. Sensitivity analysis revealed that patients with severe hyperchloremia were more susceptible to DCI. CONCLUSIONS This study found that patients with aSAH and postoperative hyperchloremia are more prone to developing DCI.
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Affiliation(s)
- Yunfan Zhou
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Runting Li
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Ke Wang
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Fa Lin
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Yu Chen
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Jun Yang
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Heze Han
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Tu Li
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Yitong Jia
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Kexin Yuan
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Haibin Zhang
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Ruinan Li
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Zhipeng Li
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Yahui Zhao
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Qiang Hao
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China; Stroke Center, Beijing Institute for Brain Disorders, Beijing, China; Beijing Key Laboratory of Translational Medicine for Cerebrovascular Disease, Beijing, China
| | - Xiaolin Chen
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China; Stroke Center, Beijing Institute for Brain Disorders, Beijing, China; Beijing Key Laboratory of Translational Medicine for Cerebrovascular Disease, Beijing, China.
| | - Yuanli Zhao
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China; China National Clinical Research Center for Neurological Diseases, Beijing, China; Stroke Center, Beijing Institute for Brain Disorders, Beijing, China; Beijing Key Laboratory of Translational Medicine for Cerebrovascular Disease, Beijing, China
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Azzam AY, Vaishnav D, Essibayi MA, Unda SR, Jabal MS, Liriano G, Fortunel A, Holland R, Khatri D, Haranhalli N, Altschul D. Prediction of delayed cerebral ischemia followed aneurysmal subarachnoid hemorrhage. A machine-learning based study. J Stroke Cerebrovasc Dis 2024; 33:107553. [PMID: 38340555 DOI: 10.1016/j.jstrokecerebrovasdis.2023.107553] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Accepted: 12/25/2023] [Indexed: 02/12/2024] Open
Abstract
INTRODUCTION Delayed Cerebral Ischemia (DCI) is a significant complication following aneurysmal subarachnoid hemorrhage (aSAH) that can lead to poor outcomes. Machine learning techniques have shown promise in predicting DCI and improving risk stratification. METHODS In this study, we aimed to develop machine learning models to predict the occurrence of DCI in patients with aSAH. Patient data, including various clinical variables and co-factors, were collected. Six different machine learning models, including logistic regression, multilayer perceptron, decision tree, random forest, gradient boosting machine, and extreme gradient boosting (XGB), were trained and evaluated using performance metrics such as accuracy, area under the curve (AUC), precision, recall, and F1 score. RESULTS After data augmentation, the random forest model demonstrated the best performance, with an AUC of 0.85. The multilayer perceptron neural network model achieved an accuracy of 0.93 and an F1 score of 0.85, making it the best performing model. The presence of positive clinical vasospasm was identified as the most important feature for predicting DCI. CONCLUSIONS Our study highlights the potential of machine learning models in predicting the occurrence of DCI in patients with aSAH. The multilayer perceptron model showed excellent performance, indicating its utility in risk stratification and clinical decision-making. However, further validation and refinement of the models are necessary to ensure their generalizability and applicability in real-world settings. Machine learning techniques have the potential to enhance patient care and improve outcomes in aSAH, but their implementation should be accompanied by careful evaluation and validation.
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Affiliation(s)
- Ahmed Y Azzam
- Montefiore-Einstein Cerebrovascular Research Lab, Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, NY, USA
| | - Dhrumil Vaishnav
- Montefiore-Einstein Cerebrovascular Research Lab, Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, NY, USA; Department of Neurological Surgery, Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, NY, USA
| | - Muhammed Amir Essibayi
- Montefiore-Einstein Cerebrovascular Research Lab, Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, NY, USA; Department of Neurological Surgery, Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, NY, USA
| | - Santiago R Unda
- Department of Neurological Surgery, Weill Cornell Medical College, Cornell University NY, NY, USA
| | | | - Genesis Liriano
- Department of Neurological Surgery, Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, NY, USA
| | - Adisson Fortunel
- Department of Neurological Surgery, Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, NY, USA
| | - Ryan Holland
- Department of Neurological Surgery, Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, NY, USA
| | - Deepak Khatri
- Department of Neurological Surgery, Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, NY, USA
| | - Neil Haranhalli
- Montefiore-Einstein Cerebrovascular Research Lab, Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, NY, USA; Department of Neurological Surgery, Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, NY, USA
| | - David Altschul
- Montefiore-Einstein Cerebrovascular Research Lab, Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, NY, USA; Department of Neurological Surgery, Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, NY, USA.
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Wendel C, Oberhauser C, Schiff J, Henkes H, Ganslandt O. Stellate Ganglion Block and Intraarterial Spasmolysis in Patients with Cerebral Vasospasm: A Retrospective Cohort Study. Neurocrit Care 2024; 40:603-611. [PMID: 37498456 PMCID: PMC10959776 DOI: 10.1007/s12028-023-01762-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Accepted: 05/17/2023] [Indexed: 07/28/2023]
Abstract
BACKGROUND In patients with symptomatic cerebral vasospasm (CV) following aneurysmal subarachnoid hemorrhage who do not respond to medical therapy, urgent treatment escalation has been suggested to be beneficial for brain tissue at risk. In our routine clinical care setting, we implemented stellate ganglion block (SGB) as a rescue therapy with subsequent escalation to intraarterial spasmolysis (IAS) with milrinone for refractory CV. METHODS In this retrospective analysis from 2012 to 2021, patients with CV following aneurysmal subarachnoid hemorrhage who received an SGB or IAS were identified. Patients were assessed through neurological examination and transcranial Doppler. Rescue therapy was performed in patients with mean cerebral blood flow velocity (CBFV) ≥ 120 cm/s and persistent neurological deterioration/intubation under induced hypertension. Patients were reassessed after therapy and the following day. The Glasgow Outcome Scale was assessed at discharge and 6-month follow-up. RESULTS A total of 82 patients (mean age 50.16 years) with 184 areas treated with SGB and/or IAS met the inclusion criteria; 109 nonaffected areas were extracted as controls. The mean CBFV decrease in the middle cerebral artery on the following day was - 30.1 (± 45.2) cm/s with SGB and - 31.5 (± 45.2) cm/s with IAS. Mixed linear regression proved the significance of the treatment categories; other fixed effects (sex, age, aneurysm treatment modality [clipping or coiling], World Federation of Neurological Surgeons score, and Fisher score) were insignificant. In logistic regression, the presence of cerebral infarction on imaging before discharge from the intensive care unit (34/82) was significantly associated with unfavorable outcomes (Glasgow Outcome Scale ≤ 3) at follow-up. CONCLUSIONS Stellate ganglion block and IAS decreased CBFV the following 24 h in patients with CV. We suggest SGB alone for patients with mild symptomatic CV (CBFV < 180 cm/s), while subsequent escalation to IAS proved to be beneficial in patients with refractory CV and severe CBFV elevation (CBFV ≥ 180 cm/s).
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Affiliation(s)
- Christopher Wendel
- Neurosurgical Clinic, Klinikum Stuttgart, Kriegsbergstr. 60, 70174, Stuttgart, Germany
- Institute for Medical Information Processing, Biometry, and Epidemiology, Chair of Public Health and Health Services Research, Ludwig-Maximilians-University, Munich, Germany
- Pettenkofer School of Public Health, Munich, Germany
| | - Cornelia Oberhauser
- Institute for Medical Information Processing, Biometry, and Epidemiology, Chair of Public Health and Health Services Research, Ludwig-Maximilians-University, Munich, Germany
- Pettenkofer School of Public Health, Munich, Germany
| | - Jan Schiff
- Department of Anesthesiology and Operative Intensive Care Medicine, Klinikum Stuttgart, Stuttgart, Germany
| | - Hans Henkes
- Neuroradiological Clinic, Klinikum Stuttgart, Stuttgart, Germany
| | - Oliver Ganslandt
- Neurosurgical Clinic, Klinikum Stuttgart, Kriegsbergstr. 60, 70174, Stuttgart, Germany.
- Department of Neurosurgery, Friedrich-Alexander-Universität Erlangen-Nürnberg, Schwabachanlage 6, 91054, Erlangen, Germany.
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Feulner J, Weidinger CS, Dörfler A, Birkholz T, Buchfelder M, Sommer B. Early Intravenous Magnesium Sulfate and Its Impact on Cerebral Vasospasm as well as Delayed Cerebral Ischemia in Aneurysmal Subarachnoid Hemorrhage: A Retrospective Matched Case-Control Analysis. World Neurosurg 2024:S1878-8750(24)00448-0. [PMID: 38514031 DOI: 10.1016/j.wneu.2024.03.062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2024] [Accepted: 03/13/2024] [Indexed: 03/23/2024]
Abstract
BACKGROUND Magnesium sulfate (MgSO4) is a potential neuroprotective agent for patients with aneurysmal subarachnoid hemorrhage (SAH). We analyzed the effect of early application of intraoperative intravenous MgSO4 and compared cerebral vasospasm (CV), delayed cerebral ischemia (DCI), and neurological outcome in 2 patient cohorts. METHODS A retrospective matched-pair analysis from patients at a single center in Germany was performed without (group A) and with (group B) MgSO4 application <24 hours after diagnosis. Pairs were matched according to the known risk factors for DCI and CV (age, Fisher grade, smoking, severity of SAH). Incidence of CV and DCI and neurological outcome using the modified Rankin Scale score 3 and 12 months after SAH were recorded. RESULTS The inclusion criteria were met by 196 patients. After risk stratification, 48 patients were included in the final analysis (age 54.2 ± 8.1 years; 30 women and 18 men) and were assigned to group A (n = 24) or group B (n = 24). CV occurred less frequently in group B (33%) than in group A (46%). Likewise, DCI was present in 13% in group B compared with 42% in group A. After 12 months, 22 patients in group B had a favorable functional outcome (modified Rankin Scale score 0-3) compared with 15 patients in group A. CONCLUSIONS In this study, the incidence of CV and DCI was lower in patients receiving intravenous MgSO4 within 24 hours after aneurysmal SAH onset. Favorable functional outcome was more likely in the MgSO4 group after 12 months of follow-up.
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Affiliation(s)
- Julian Feulner
- Department of Neurosurgery, University Hospital Erlangen, Erlangen, Germany; Department of Neurosurgery, Klinikum Fürth, Fürth, Germany
| | | | - Arnd Dörfler
- Department of Neuroradiology, University Hospital Erlangen, Erlangen, Germany
| | - Torsten Birkholz
- Department of Anesthesiology, University Hospital Erlangen, Erlangen, Germany
| | - Michael Buchfelder
- Department of Neurosurgery, University Hospital Erlangen, Erlangen, Germany
| | - Björn Sommer
- Department of Neurosurgery, University Hospital Erlangen, Erlangen, Germany; Department of Neurosurgery, University Hospital Augsburg, Augsburg, Germany.
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Raatikainen E, Kiiski H, Kuitunen A, Junttila E, Huhtala H, Kallonen A, Ala-Peijari M, Långsjö J, Saukkonen J, Valo T, Kauppila T, Raerinne S, Frösen J, Vahtera A. Increased blood coagulation is associated with poor neurological outcome in aneurysmal subarachnoid hemorrhage. J Neurol Sci 2024; 458:122943. [PMID: 38422781 DOI: 10.1016/j.jns.2024.122943] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Revised: 01/14/2024] [Accepted: 02/19/2024] [Indexed: 03/02/2024]
Abstract
BACKGROUND AND PURPOSE Patients with aneurysmal subarachnoid hemorrhage (aSAH) have demonstrated increased blood coagulation which is thought to contribute to delayed cerebral ischemia (DCI) and to a worse outcome. Therefore, we sought to determine whether this increased blood coagulation, detectable with rotational thromboelastometry (ROTEM), was associated with DCI and neurological outcome. METHODS We conducted a prospective observational study of 60 consecutive adult aSAH patients. ROTEM's EXTEM and FIBTEM assays and D-dimer were analyzed at admission and post-bleed days (PBDs) 2-3, 4-5, 7-8, and 11-12. ROTEM's clot formation time (CFT) represents the stabilization of the clot, and the maximum clot firmness (MCF) the maximum clot strength. Glasgow Outcome Scale extended (GOSe) at three months determined the neurological outcome. RESULTS DCI incidence was 41.7%. EXTEM-CFT was significantly shorter in patients with unfavorable neurological outcome (GOSe 1-4) on PBDs 4-5 and 7-8, p < 0.05, respectively. FIBTEM-MCF was significantly higher in patients with unfavorable neurological outcomes on PBD 4-5 (p < 0.05), PBD 7-8 (p < 0.05), and PBD 11-12 (p < 0.05). EXTEM-CFT decreased, and FIBTEM-MCF rose during the study period in all patients. Patients with unfavorable neurological outcome had a higher D-dimer at all studied time points, p < 0.05. No difference was found in the ROTEM parameters or D-dimer when assessing patients with and without DCI. CONCLUSIONS Patients were in a state of increased blood coagulation after aSAH, with those with unfavorable neurological outcome being more coagulable than those with favorable outcome. However, increased blood coagulation was not associated with DCI. CLINICALTRIALS gov, NCT03985176.
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Affiliation(s)
- Essi Raatikainen
- Tampere University Hospital, Department of Intensive Care, Tampere, Finland; Tampere University, Faculty of Medicine and Health Technology, Tampere, Finland.
| | - Heikki Kiiski
- Tampere University Hospital, Department of Intensive Care, Tampere, Finland; Tampere University, Faculty of Medicine and Health Technology, Tampere, Finland
| | - Anne Kuitunen
- Tampere University Hospital, Department of Intensive Care, Tampere, Finland; Tampere University, Faculty of Medicine and Health Technology, Tampere, Finland
| | - Eija Junttila
- Tampere University Hospital, Department of Anesthesia and Intensive Care, Tampere, Finland; Tampere University, Faculty of Medicine and Health Technology, Tampere, Finland
| | - Heini Huhtala
- Tampere University, Faculty of Social Sciences, Tampere, Finland
| | - Antti Kallonen
- Tampere University, Faculty of Medicine and Health Technology, Tampere, Finland
| | - Marika Ala-Peijari
- Tampere University Hospital, Department of Intensive Care, Tampere, Finland; Tampere University, Faculty of Medicine and Health Technology, Tampere, Finland
| | - Jaakko Långsjö
- Tampere University Hospital, Department of Intensive Care, Tampere, Finland; Tampere University, Faculty of Medicine and Health Technology, Tampere, Finland
| | - Johanna Saukkonen
- Tampere University Hospital, Department of Radiology, Tampere, Finland
| | - Timo Valo
- Tampere University Hospital, Department of Radiology, Tampere, Finland
| | - Terhi Kauppila
- Tampere University Hospital, Department of Radiology, Tampere, Finland
| | - Sanni Raerinne
- Tampere University Hospital, Department of Radiology, Tampere, Finland
| | - Juhana Frösen
- Tampere University Hospital, Department of Neurosurgery, Tampere, Finland; Tampere University, Faculty of Medicine and Health Technology, Tampere, Finland
| | - Annukka Vahtera
- Tampere University Hospital, Department of Intensive Care, Tampere, Finland; Tampere University, Faculty of Medicine and Health Technology, Tampere, Finland
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11
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Vandenbulcke A, Messerer M, Garvayo Navarro M, Peters DR, Starnoni D, Giammattei L, Ben-Hamouda N, Puccinelli F, Saliou G, Cossu G, Daniel RT. Cisternal nicardipine for prevention of delayed cerebral ischemia in aneurysmal subarachnoid hemorrhage: a comparative retrospective cohort study. Acta Neurochir (Wien) 2024; 166:133. [PMID: 38472426 DOI: 10.1007/s00701-024-06023-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Accepted: 02/14/2024] [Indexed: 03/14/2024]
Abstract
PURPOSE Intrathecal vasoactive drugs have been proposed in patients with aneurysmal subarachnoid hemorrhage (aSAH) to manage cerebral vasospasm (CV). We analyzed the efficacy of intracisternal nicardipine compared to intraventricular administration to a control group (CG) to determine its impact on delayed cerebral ischemia (DCI) and functional outcomes. Secondary outcomes included the need for intra-arterial angioplasties and the safety profile. METHODS We performed a retrospective analysis of prospectively collected data of all adult patients admitted for a high modified Fisher grade aSAH between January 2015 and April 2022. All patients with significant radiological CV were included. Three groups of patients were defined based on the CV management: cisternal nicardipine (CN), ventricular nicardipine (VN), and no intrathecal nicardipine (control group). RESULTS Seventy patients met the inclusion criteria. Eleven patients received intracisternal nicardipine, 18 intraventricular nicardipine, and 41 belonged to the control group. No cases of DCI were observed in the CN group (p = 0.02). Patients with intracisternal nicardipine had a reduced number of intra-arterial angioplasties when compared to the control group (p = 0.03). The safety profile analysis showed no difference in complications across the three groups. Intrathecal (ventricular or cisternal) nicardipine therapy improved functional outcomes at 6 months (p = 0.04) when compared to the control group. CONCLUSION Administration of intrathecal nicardipine for moderate to severe CV reduces the rate of DCI and improved long-term functional outcomes in patients with high modified Fisher grade aSAH. This study also showed a relative benefit of cisternal over intraventricular nicardipine, thereby reducing the number of angioplasties performed in the post-treatment phase. However, these preliminary results should be confirmed with future prospective studies.
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Affiliation(s)
- Alberto Vandenbulcke
- Department of Neurosurgery, University Hospital of Lausanne (CHUV), University of Lausanne, Rue du Bugnon 46, 1011, Lausanne, Vaud, Switzerland
| | - Mahmoud Messerer
- Department of Neurosurgery, University Hospital of Lausanne (CHUV), University of Lausanne, Rue du Bugnon 46, 1011, Lausanne, Vaud, Switzerland
| | - Marta Garvayo Navarro
- Department of Neurosurgery, University Hospital of Lausanne (CHUV), University of Lausanne, Rue du Bugnon 46, 1011, Lausanne, Vaud, Switzerland
| | - David R Peters
- Department of Neurosurgery, University Hospital of Lausanne (CHUV), University of Lausanne, Rue du Bugnon 46, 1011, Lausanne, Vaud, Switzerland
| | - Daniele Starnoni
- Department of Neurosurgery, University Hospital of Lausanne (CHUV), University of Lausanne, Rue du Bugnon 46, 1011, Lausanne, Vaud, Switzerland
| | - Lorenzo Giammattei
- Department of Neurosurgery, University Hospital of Lausanne (CHUV), University of Lausanne, Rue du Bugnon 46, 1011, Lausanne, Vaud, Switzerland
| | - Nawfel Ben-Hamouda
- Department of Intensive Care, University Hospital of Lausanne (CHUV), University of Lausanne, Lausanne, Vaud, Switzerland
| | - Francesco Puccinelli
- Department of Radiology, Section of Neuroradiology, University Hospital of Lausanne (CHUV), Lausanne, Vaud, Switzerland
| | - Guillaume Saliou
- Department of Radiology, Section of Neuroradiology, University Hospital of Lausanne (CHUV), Lausanne, Vaud, Switzerland
| | - Giulia Cossu
- Department of Neurosurgery, University Hospital of Lausanne (CHUV), University of Lausanne, Rue du Bugnon 46, 1011, Lausanne, Vaud, Switzerland
| | - Roy T Daniel
- Department of Neurosurgery, University Hospital of Lausanne (CHUV), University of Lausanne, Rue du Bugnon 46, 1011, Lausanne, Vaud, Switzerland.
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12
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Liu Y, Li Y, Han B, Mei L, Zhang P, Zhang J, Xu M, Gao M, Feng G. Targeted Temperature Management for Poor Grade Aneurysmal Subarachnoid Hemorrhage: A Pilot Study. World Neurosurg 2024; 183:e846-e859. [PMID: 38237800 DOI: 10.1016/j.wneu.2024.01.041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2023] [Revised: 01/04/2024] [Accepted: 01/05/2024] [Indexed: 02/10/2024]
Abstract
OBJECTIVE We assessed the effectiveness and safety of target temperature management (TTM) in treating patients with poor-grade aneurysmal subarachnoid hemorrhage (aSAH). The primary objective was to evaluate the neurological outcome at 3 months. Secondary objectives were to assess mortality, delayed cerebral ischemia, cerebral edema, hydrocephalus, midline shift, and laboratory indicators related to TTM. METHODS A single-blind, nonrandomized controlled trial was conducted. After admission, patients with poor-grade aSAH (Hunt-Hess scores IV ∼ V) were assigned to a TTM group or a control group in a 1:1 ratio. TTM with core temperatures ranging from 36°C to 37°C was performed immediately and maintained until microclipping or endovascular embolization. Subsequently, rapid induction to 33°C ∼ 35°C was carried out and maintained for 3 to 5 days. Then, the patients underwent slow rewarming to 36°C ∼ 37°C and maintained at that temperature for a minimum of 48 hours. RESULTS Sixty patients (30 treated with TTM and 30 with standard treatment) were included in the study. At 3 months, a favorable prognosis (modified Rankin scale score 0 to 3) was significantly higher in the TTM group than in the control group (n = 14, 46.7% vs. n = 6, 20.0%, P = 0.028). Adjusted multivariate logistics regression analysis indicated that TTM (odds ratio = 0.20, 95% confidence interval: 0.05-0.77, P = 0.019) reduced the number of unfavorable prognoses 3 months after admission. CONCLUSIONS This study demonstrated the effectiveness and safety of TTM in patients with poor-grade aSAH, and its implementation improved neurological outcomes. Multicenter randomized controlled studies with a large number of patients are needed to confirm these observations.
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Affiliation(s)
- Yang Liu
- Department of Neurosurgery, Zhengzhou University People's Hospital, Henan Provincial People's Hospital, Zhengzhou, China
| | - Yanru Li
- Department of Neurosurgical Intensive Care Unit, Henan Provincial People's Hospital, Zhengzhou University People's Hospital, Zhengzhou, China
| | - Bingsha Han
- Department of Neurosurgical Intensive Care Unit, Henan Provincial People's Hospital, Zhengzhou University People's Hospital, Zhengzhou, China
| | - Leikai Mei
- Department of Neurosurgery, Henan Provincial People's Hospital, Zhengzhou, China
| | - Pengzhao Zhang
- Department of Neurosurgery, Henan Provincial People's Hospital, Zhengzhou, China
| | - Jiaqi Zhang
- Department of Neurosurgery, Henan Provincial People's Hospital, Zhengzhou, China
| | - Mengyuan Xu
- Department of Neurosurgery, Henan Provincial People's Hospital, Zhengzhou, China
| | - Min Gao
- Department of Neurosurgery, Henan Provincial People's Hospital, Zhengzhou, China
| | - Guang Feng
- Department of Neurosurgical Intensive Care Unit, Henan Provincial People's Hospital, Zhengzhou University People's Hospital, Zhengzhou, China.
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Sorrentino ZA, Lucke-Wold BP, Laurent D, Quintin SS, Hoh BL. Interventional Treatment of Symptomatic Vasospasm in the Setting of Traumatic Brain Injury: A Systematic Review of Reported Cases. World Neurosurg 2024; 183:45-55. [PMID: 38043741 DOI: 10.1016/j.wneu.2023.11.135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2023] [Revised: 11/27/2023] [Accepted: 11/28/2023] [Indexed: 12/05/2023]
Abstract
Traumatic subarachnoid hemorrhage (tSAH) is frequently comorbid with traumatic brain injury (TBI) and may induce secondary injury through vascular changes such as vasospasm and subsequent delayed cerebral ischemia (DCI). While aneurysmal SAH is well studied regarding vasospasm and DCI, less is known regarding tSAH and the prevalence of vasospasm and DCI, the consequences of vasospasm in this setting, when treatment is indicated, and which management strategies should be implemented. In this article, a systematic review of the literature that was conducted for cases of symptomatic vasospasm in patients with TBI is reported, association with tSAH is reported, risk factors for vasospasm and DCI are summarized, and commonalities in diagnosis and management are discussed. Clinical characteristics and treatment outcomes of 38 cases across 20 studies were identified in which patients with TBI with vasospasm underwent medical or endovascular management. Of the patients with data available for each category, the average age was 48.7 ± 20.3 years (n = 31), the Glasgow Coma Scale score at presentation was 10.6 ± 4.5 (n = 35), and 100% had tSAH (n = 29). Symptomatic vasospasm indicative of DCI was diagnosed on average at postinjury day 8.4 ± 3.0 days (n = 30). Of the patients, 56.6% (n = 30) had a new ischemic change associated with vasospasm confirming DCI. Treatment strategies are discussed, with 11 of 12 endovascularly treated and 19 of 26 medically treated patients surviving to discharge. tSAH is associated with vasospasm and DCI in moderate and severe TBI, and patients with clinical and radiographic evidence of symptomatic vasospasm and subsequent DCI may benefit from endovascular or medical management strategies.
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Affiliation(s)
- Zachary A Sorrentino
- University of Florida College of Medicine, Gainesville, Florida, USA; Department of Neurosurgery, University of Florida College of Medicine, Gainesville, Florida, USA.
| | - Brandon P Lucke-Wold
- University of Florida College of Medicine, Gainesville, Florida, USA; Department of Neurosurgery, University of Florida College of Medicine, Gainesville, Florida, USA
| | - Dimitri Laurent
- University of Florida College of Medicine, Gainesville, Florida, USA; Department of Neurosurgery, University of Florida College of Medicine, Gainesville, Florida, USA
| | - Stephan S Quintin
- University of Florida College of Medicine, Gainesville, Florida, USA
| | - Brian L Hoh
- University of Florida College of Medicine, Gainesville, Florida, USA; Department of Neurosurgery, University of Florida College of Medicine, Gainesville, Florida, USA
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14
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Vasconcellos de Oliveira Souza N, Rouanet C, Fontoura Solla DJ, Barroso de Lima CV, Trevizo J, Rezende F, Alves MM, de Oliveira Manuel AL, Righy C, Chaddad Neto F, Frudit M, Silva GS. Impact of Medical and Neurologic Complications on the Outcome of Patients with Aneurysmal Subarachnoid Hemorrhage in a Middle-Income Country. World Neurosurg 2024; 183:e250-e260. [PMID: 38104933 DOI: 10.1016/j.wneu.2023.12.068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 12/11/2023] [Accepted: 12/12/2023] [Indexed: 12/19/2023]
Abstract
OBJECTIVE Almost two thirds of the world's aneurysmal subarachnoid hemorrhage (aSAH) are in low- and middle-income countries. Herein, we aimed to evaluate the impact of complications on the outcome of aSAH in a middle-income country. METHODS Baseline data (age, sex, World Federation of Neurosurgical Society, time ictus-treatment, treatment modality) and medical and neurologic complications from a cohort in Brazil (2016-2019) were evaluated: delayed cerebral ischemia; hydrocephalus; meningitis; seizures; intracranial hypertension; infections (pneumonia, bloodstream, urinary tract infection infection of undetermined source); sodium disturbances; acute kidney injury; and cardiac and pulmonary complications. The primary outcome was the modified Rankin scale (mRS) at hospital discharge. Univariate and multivariate models were employed. RESULTS From 212 patients (71.7% female, age 52.7 ± 12.8), 92% developed at least 1 complication (any infection-43.9%, hydrocephalus-34.4%, intracranial hypertension-33%, infection of undetermined source-20.8%, hypernatremia-20.8%, hyponatremia-19.8%, delayed cerebral ischemia-related infarction-18.7%, pneumonia-18.4%, acute kidney injury-16.5%, and seizures-11.8%). In unadjusted analysis, all but hyponatremia and urinary tract infection were associated with mRS 3-6 at discharge; however, complications explained only 12% of the variation in functional outcome (mRS). Most patients were treated by clipping (66.5%), and 15.6% (33 patients) did not receive a definitive treatment. The median time ictus-admission and ictus-treatment were 5 and 9 days, respectively. CONCLUSIONS While medical and neurologic complications are a recognized opportunity to improve aSAH care, low- and middle-income countries comprise 70% of the world population and still encounter difficulties concerning early definitive aneurysm treatment, rebleeding, and human and material resources.
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Affiliation(s)
- Natália Vasconcellos de Oliveira Souza
- Department of Neurology and Neurosurgery, Universidade Federal de São Paulo, Sao Paulo, Brazil; Department of Neurology and Neurosurgery, Universidade de São Paulo, Sao Paulo, Brazil; Hospital Israelita Albert Einstein, Academic Research Organization, São Paulo, Brazil.
| | - Carolina Rouanet
- Department of Neurology and Neurosurgery, Universidade Federal de São Paulo, Sao Paulo, Brazil
| | | | | | - Juliana Trevizo
- Department of Neurology and Neurosurgery, Universidade Federal de São Paulo, Sao Paulo, Brazil
| | - Flavio Rezende
- Department of Neurology and Neurosurgery, Universidade Federal de São Paulo, Sao Paulo, Brazil
| | - Maramelia Miranda Alves
- Department of Neurology and Neurosurgery, Universidade Federal de São Paulo, Sao Paulo, Brazil; Hospital Israelita Albert Einstein, Academic Research Organization, São Paulo, Brazil
| | - Airton Leonardo de Oliveira Manuel
- Department of Neurology and Neurosurgery, Universidade Federal de São Paulo, Sao Paulo, Brazil; Department of Intensive Care Medicine, Sultan Qaboos Comprehensive Cancer Care and Research Center, Muscat, Sultanate of Oman
| | - Cassia Righy
- Department of Neurointensive Care, Paulo Niemeyer State Brain Institute, Rio de Janeiro, Brazil; Laboratório de Medicina Intensiva-Instituto Nacional de Infectologia, Fundação Oswaldo Cruz, Rio de Janeiro, Brazil
| | - Feres Chaddad Neto
- Department of Neurology and Neurosurgery, Universidade Federal de São Paulo, Sao Paulo, Brazil; Hospital Israelita Albert Einstein, Academic Research Organization, São Paulo, Brazil
| | - Michel Frudit
- Department of Neurology and Neurosurgery, Universidade Federal de São Paulo, Sao Paulo, Brazil; Hospital Israelita Albert Einstein, Academic Research Organization, São Paulo, Brazil
| | - Gisele Sampaio Silva
- Department of Neurology and Neurosurgery, Universidade Federal de São Paulo, Sao Paulo, Brazil; Hospital Israelita Albert Einstein, Academic Research Organization, São Paulo, Brazil
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15
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Lee Y, Lim YC. Monocyte Count and Systemic Immune-Inflammation Index Score as Predictors of Delayed Cerebral Ischemia after Aneurysmal Subarachnoid Hemorrhage. J Korean Neurosurg Soc 2024; 67:177-185. [PMID: 37734388 PMCID: PMC10924912 DOI: 10.3340/jkns.2023.0182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Accepted: 09/18/2023] [Indexed: 09/23/2023] Open
Abstract
OBJECTIVE Delayed cerebral ischemia (DCI) is a major cause of disability in patients who survive aneurysmal subarachnoid hemorrhage (aSAH). Systemic inflammatory markers, such as peripheral leukocyte count and systemic immune-inflammatory index (SII) score, have been considered predictors of DCI in previous studies. This study aims to investigate which systemic biomarkers are significant predictors of DCI. METHODS We conducted a retrospective, observational, single-center study of 170 patients with SAH admitted between May 2018 and March 2022. We analyzed the patients' clinical and laboratory parameters within 1 hour and 3-4 and 5-7 days after admission. The DCI and non-DCI groups were compared. Variables showing statistical significance in the univariate logistic analysis (p<0.05) were entered into a multivariate regression model. RESULTS Hunt-Hess grade "4-5" at admission, modified Fisher scale grade "3-4" at admission, hydrocephalus, intraventricular hemorrhage, and infection showed statistical significance (p<0.05) on a univariate logistic regression. Lymphocyte and monocyte count at admission, SII scores and C-reactive protein levels on days 3-4, and leukocyte and neutrophil counts on days 5-7 exhibited statistical significance on the univariate logistic regression. Multivariate logistic regression analysis revealed that monocyte count at admission (odds ratio [OR], 1.64; 95% confidence interval [CI], 1.04-2.65; p=0.036) and SII score at days 3-4 (OR, 1.55; 95% CI, 1.02-2.47; p=0.049) were independent predictors of DCI. CONCLUSION Monocyte count at admission and SII score 3-4 days after rupture are independent predictors of clinical deterioration caused by DCI after aSAH. Peripheral monocytosis may be the primer for the innate immune reaction, and the SII score at days 3-4 can promptly represent the propagated systemic immune reaction toward DCI.
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Affiliation(s)
- Yeonhu Lee
- Department of Neurosurgery, Ajou University Hospital, Ajou University School of Medicine, Suwon, Korea
| | - Yong Cheol Lim
- Department of Neurosurgery, Ajou University Hospital, Ajou University School of Medicine, Suwon, Korea
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16
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Seyour M, Salvagno M, Rozenblum R, Macchini E, Anderloni M, Jodaitis L, Peluso L, Annoni F, Lolli V, Schuind S, Gaspard N, Taccone FS, Gouvea Bogossian E. The impact of perfusion computed tomography on the diagnosis and outcome of delayed cerebral ischemia after subarachnoid hemorrhage. Neurol Sci 2024; 45:1135-1144. [PMID: 37828386 DOI: 10.1007/s10072-023-07115-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Accepted: 10/01/2023] [Indexed: 10/14/2023]
Abstract
BACKGROUND Delayed cerebral ischemia (DCI) is a preventable cause of poor neurological outcome in aneurysmal subarachnoid hemorrhage (aSAH). Advances in radiological methods, such as cerebral perfusion computed tomography (CTP), could help diagnose DCI earlier and potentially improve outcomes in aSAH. The objective of this study was to assess whether the use of CTP to diagnose DCI early could reduce the risk of infarction related to DCI. METHODS Retrospective cohort study of patients in the intensive care unit of Erasme Hospital (Brussels, Belgium) between 2004 and 2021 with aSAH who developed DCI. Patients were classified as: "group 1" - DCI diagnosed based on clinical deterioration or "group 2" - DCI diagnosed using CTP. The primary outcome was the development of infarction unrelated to the initial bleeding or surgery. RESULTS 211 aSAH patients were diagnosed with DCI during the study period: 139 (66%) in group 1 and 72 (34%) in group 2. In group 1, 109 (78%) patients developed a cerebral infarction, compared to 45 (63%) in group 2 (p = 0.02). The adjusted cumulative incidence of DCI over time was lower in group 2 than in group 1 [hazard ratio 0.65 (95% CI 0.48-0.94); p = 0.02]. The use of CTP to diagnose DCI was not independently associated with mortality or neurological outcome. CONCLUSIONS The use of CTP to diagnose DCI might help reduce the risk of developing cerebral infarction after aSAH, although the impact of such an approach on patient outcomes needs to be further demonstrated.
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Affiliation(s)
- Mohamed Seyour
- Department of Intensive Care, Hôpital Universitaire de Bruxelles (HUB), Université Libre de Bruxelles (ULB), Route de Lennik, 808, 1070, Brussels, Belgium
| | - Michele Salvagno
- Department of Intensive Care, Hôpital Universitaire de Bruxelles (HUB), Université Libre de Bruxelles (ULB), Route de Lennik, 808, 1070, Brussels, Belgium
| | - Raphael Rozenblum
- Department of Intensive Care, Hôpital Universitaire de Bruxelles (HUB), Université Libre de Bruxelles (ULB), Route de Lennik, 808, 1070, Brussels, Belgium
| | - Elisabetta Macchini
- Department of Intensive Care, Hôpital Universitaire de Bruxelles (HUB), Université Libre de Bruxelles (ULB), Route de Lennik, 808, 1070, Brussels, Belgium
| | - Marco Anderloni
- Department of Intensive Care, Hôpital Universitaire de Bruxelles (HUB), Université Libre de Bruxelles (ULB), Route de Lennik, 808, 1070, Brussels, Belgium
| | - Lise Jodaitis
- Department of Neurology, Hôpital Universitaire de Bruxelles (HUB), Université Libre de Bruxelles (ULB), Route de Lennik, 808, 1070, Brussels, Belgium
| | - Lorenzo Peluso
- Department of Intensive Care, Hôpital Universitaire de Bruxelles (HUB), Université Libre de Bruxelles (ULB), Route de Lennik, 808, 1070, Brussels, Belgium
| | - Filippo Annoni
- Department of Intensive Care, Hôpital Universitaire de Bruxelles (HUB), Université Libre de Bruxelles (ULB), Route de Lennik, 808, 1070, Brussels, Belgium
| | - Valentina Lolli
- Department of Radiology, Hôpital Universitaire de Bruxelles (HUB), Université Libre de Bruxelles (ULB), Route de Lennik, 808, 1070, Brussels, Belgium
| | - Sophie Schuind
- Department of Neurosurgery, Hôpital Universitaire de Bruxelles (HUB), Université Libre de Bruxelles (ULB), Route de Lennik, 808, 1070, Brussels, Belgium
| | - Nicolas Gaspard
- Department of Neurology, Hôpital Universitaire de Bruxelles (HUB), Université Libre de Bruxelles (ULB), Route de Lennik, 808, 1070, Brussels, Belgium
| | - Fabio Silvio Taccone
- Department of Intensive Care, Hôpital Universitaire de Bruxelles (HUB), Université Libre de Bruxelles (ULB), Route de Lennik, 808, 1070, Brussels, Belgium
| | - Elisa Gouvea Bogossian
- Department of Intensive Care, Hôpital Universitaire de Bruxelles (HUB), Université Libre de Bruxelles (ULB), Route de Lennik, 808, 1070, Brussels, Belgium.
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17
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Guenego A, Heit JJ, Bonnet T, Elens S, Sadeghi N, Ligot N, Mine B, Lolli V, Tannouri F, Taccone FS, Lubicz B. Treatment of Cerebral Vasospasm Following Aneurysmal Subarachnoid Hemorrhage using the Neurospeed Semi-compliant Balloon. Clin Neuroradiol 2024:10.1007/s00062-024-01390-7. [PMID: 38386051 DOI: 10.1007/s00062-024-01390-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Accepted: 01/18/2024] [Indexed: 02/23/2024]
Abstract
BACKGROUND AND PURPOSE Cerebral vasospasm (CV) following aneurysmal subarachnoid hemorrhage (aSAH) may lead to morbidity and mortality. Endovascular mechanical angioplasty may be performed if symptomatic CV is refractory to noninvasive medical management. Off-label compliant remodelling balloons tend to conform to the course of the vessel, contrary to noncompliant or semi-compliant balloons. Our objective is to describe our initial experience with the semi-compliant Neurospeed balloon (approved for intracranial stenosis) in cerebral vasospasm treatment following aSAH. METHODS All patients included in the prospective observational SAVEBRAIN PWI (NCT05276934 on clinicaltrial.gov) study who underwent cerebral angioplasty using the Neurospeed balloon for the treatment of medically refractory and symptomatic CV after aSAH were identified. Patient demographic information, procedural details and outcomes were obtained from electronic medical records. RESULTS Between February 2022 and June 2023, 8 consecutive patients underwent CV treatment with the Neurospeed balloon. Angioplasty of 48 arterial segments (supraclinoid internal carotid artery, A1 and A2 segments of the anterior cerebral artery, M1 and M2 segments of the middle cerebral artery) was attempted and 44/48 (92%) were performed. The vessel diameter significantly improved following angioplasty (+81%), while brain hypoperfusion decreased (-81% of the mean TMax). There was no long-term clinical complication, 4% periprocedural complications occurred. CONCLUSION The semi-compliant Neurospeed balloon is effective in the treatment of cerebral vasospasm following aSAH, bringing a new device into the armamentarium of the neurointerventionalist to perform intracranial angioplasty.
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Affiliation(s)
- Adrien Guenego
- Interventional Neuroradiology Department Hôpital Universitaire de Bruxelles (HUB), Brussels, Belgium.
- Department of Interventional Neuroradiology, Erasme University Hospital, Route de Lennik 808, 1070, Brussels, Belgium.
| | - Jeremy J Heit
- Departments of Radiology and Neurosurgery, Stanford Medical Center, Palo Alto, California, USA
| | - Thomas Bonnet
- Interventional Neuroradiology Department Hôpital Universitaire de Bruxelles (HUB), Brussels, Belgium
| | - Stéphanie Elens
- Interventional Neuroradiology Department Hôpital Universitaire de Bruxelles (HUB), Brussels, Belgium
| | - Niloufar Sadeghi
- Department of Radiology and Neuroradiology, Hôpital Universitaire de Bruxelles (HUB), Brussels, Belgium
| | - Noémie Ligot
- Department of Neurology, Hôpital Universitaire de Bruxelles (HUB), Brussels, Belgium
| | - Benjamin Mine
- Interventional Neuroradiology Department Hôpital Universitaire de Bruxelles (HUB), Brussels, Belgium
| | - Valentina Lolli
- Department of Radiology and Neuroradiology, Hôpital Universitaire de Bruxelles (HUB), Brussels, Belgium
| | - Fadi Tannouri
- Department of Interventional Radiology, Hôpital Universitaire de Bruxelles (HUB), Brussels, Belgium
| | - Fabio Silvio Taccone
- Department of Intensive Care, Hôpital Universitaire de Bruxelles (HUB), Route de Lennik, 808, 1070, Brussels, Belgium
| | - Boris Lubicz
- Interventional Neuroradiology Department Hôpital Universitaire de Bruxelles (HUB), Brussels, Belgium
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18
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Edvinsson L, Krause DN. Switching Off Vascular MAPK Signaling: A Novel Strategy to Prevent Delayed Cerebral Ischemia Following Subarachnoid Hemorrhage. Transl Stroke Res 2024:10.1007/s12975-024-01234-z. [PMID: 38334872 DOI: 10.1007/s12975-024-01234-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2023] [Revised: 01/12/2024] [Accepted: 02/01/2024] [Indexed: 02/10/2024]
Abstract
Patients who initially survive the rupture and repair of a brain aneurysm often take a devastating turn for the worse some days later and die or suffer permanent neurologic deficits. This catastrophic sequela is attributed to a delayed phase of global cerebral ischemia (DCI) following aneurysmal subarachnoid hemorrhage (aSAH), but we lack effective treatment. Here we present our view, based on 20 years of research, that the initial drop in blood flow at the time of rupture triggers genomic responses throughout the brain vasculature that manifest days later as increased vasoconstriction and decreased cerebral blood flow. We propose a novel treatment strategy to prevent DCI by early inhibition of the vascular mitogen-activated protein kinase (MAPK) pathway that triggers expression of vasoconstrictor and inflammatory mediators. We summarize evidence from experimental SAH models showing early treatment with MAPK inhibitors "switches off" these detrimental responses, maintains flow, and improves neurological outcome. This promising therapy is currently being evaluated in clinical trials.
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Affiliation(s)
- Lars Edvinsson
- Division of Experimental Vascular Research, Department of Clinical Sciences, Lund University, Sölvegatan 19, 22100, Lund, Sweden.
- Department of Experimental Research, Glostrup Research Institute, CopenhagenUniversity, Copenhagen, Denmark.
| | - Diana N Krause
- Division of Experimental Vascular Research, Department of Clinical Sciences, Lund University, Sölvegatan 19, 22100, Lund, Sweden
- Department of Pharmaceutical Sciences, SchoolofPharmacy&PharmaceuticalSciences, University of California at Irvine, Irvine, CA, USA
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Narayan V, Kumar M, Mahajan S, Ganesh V, Luthra A, Gupta T, Rawat A, Singh A, Vyas S, Narayanan V, Depuru A, Kaur K, Panda N, Bhagat H. The Role of Serum Matrix Metalloproteinase-9 as a Predictor of Delayed Cerebral Ischemia in Patients with Aneurysmal Subarachnoid Hemorrhage. J Mol Neurosci 2024; 74:18. [PMID: 38315311 DOI: 10.1007/s12031-024-02194-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Accepted: 01/26/2024] [Indexed: 02/07/2024]
Abstract
Delayed cerebral ischemia (DCI) is one of the major causes of a poor neurological outcome following aneurysmal subarachnoid hemorrhage (aSAH). Several biomarkers, including matrix metalloproteinase-9 (MMP-9), have been evaluated to predict the development of DCI for timely management. This prospective cohort study was done on 98 patients with aSAH presenting within 72 h of the ictus. Serum samples were collected preoperatively, 7 days after ictus, 10 days after ictus, or when the patient developed DCI, whichever was earlier. The primary objective was to correlate the serum MMP-9 levels with the development of DCI. The secondary objectives were to correlate the serum MMP-9 levels with sonographic vasospasm and the neurological outcome. There was no correlation between the serum MMP-9 levels and the development of DCI (p = 0.37). Similarly, there was no correlation between the serum MMP-9 levels and the sonographic vasospasm (0.05) nor with the modified Rankin Scale (mRS) at discharge (p = 0.27), mRS at 3 months (p = 0.22), and Glasgow Outcome Scale Extended (GOSE) at 3 months (p = 0.15). Serum MMP-9 levels do not predict the development of DCI following aSAH.
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Affiliation(s)
- Vinitha Narayan
- Department of Anesthesia and Intensive Care 4th Floor, Nehru Hospital PGIMER, Sector 12, Chandigarh, 160012, India
| | - Munish Kumar
- Department of Anesthesia and Intensive Care 4th Floor, Nehru Hospital PGIMER, Sector 12, Chandigarh, 160012, India
| | - Shalvi Mahajan
- Department of Anesthesia and Intensive Care 4th Floor, Nehru Hospital PGIMER, Sector 12, Chandigarh, 160012, India
| | - Venkata Ganesh
- Department of Anesthesia and Intensive Care 4th Floor, Nehru Hospital PGIMER, Sector 12, Chandigarh, 160012, India
| | - Ankur Luthra
- Department of Anesthesia and Intensive Care 4th Floor, Nehru Hospital PGIMER, Sector 12, Chandigarh, 160012, India
| | - Tulika Gupta
- Department of Anatomy, PGIMER, Chandigarh, India
| | - Amit Rawat
- Department of Pediatric Immunology, PGIMER, Chandigarh, India
| | | | - Sameer Vyas
- Department of Radiodiagnosis, PGIMER, Chandigarh, India
| | - Vidhya Narayanan
- Department of Anesthesia, Sree Balaji Medical College and Hospital, Chennai, Tamil Nadu, India
| | | | - Kirandeep Kaur
- Department of Anesthesia and Intensive Care 4th Floor, Nehru Hospital PGIMER, Sector 12, Chandigarh, 160012, India
| | - Nidhi Panda
- Department of Anesthesia and Intensive Care 4th Floor, Nehru Hospital PGIMER, Sector 12, Chandigarh, 160012, India
| | - Hemant Bhagat
- Department of Anesthesia and Intensive Care 4th Floor, Nehru Hospital PGIMER, Sector 12, Chandigarh, 160012, India.
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20
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Dai Z, Zhang L, Liu X, Kou M, An L, Wang W, Xu J, Su Y. Predictive Value of Quantitative Electroencephalogram Combined with Transcranial Doppler Ultrasound in Delayed Cerebral Ischemia after Subarachnoid Hemorrhage. World Neurosurg 2024:S1878-8750(24)00172-4. [PMID: 38310949 DOI: 10.1016/j.wneu.2024.01.150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Revised: 01/24/2024] [Accepted: 01/25/2024] [Indexed: 02/06/2024]
Abstract
OBJECTIVE To explore the predictive value of transcranial Doppler ultrasound (TCD) combined with quantitative electroencephalogram (QEEG) in delayed cerebral ischemia (DCI) caused by aneurysmal subarachnoid hemorrhage (aSAH). METHODS The participants were 105 patients with aSAH treated from June 2020 to December 2022. Patients were divided into DCI group (n = 34) and non-DCI group (n = 71) according to the presence of DCI 14 days after onset. Further comparison was conducted on the baseline data as well as the parameters of QEEG and TCD within 24 hours after admission. Multivariate logistic analysis was performed to investigate risk factors related to DCI within 14 days of admission in aSAH patients. RESULTS There were significant differences in the comparison of the proportion of Hunt-Hess grading, relative δ power (RDP), relative α power (RAP), relative α/β power ratio (ADR), as well as peak systolic velocity (Vs), mean blood flow velocity (MBFV) and pulsatility index (PI) of middle cerebral artery between the two groups (P < 0.05). Furthermore, Logistic regression analysis revealed that ADR (odds ratio 1.668, 95% CI 1.369-4.345) and MBFV of middle cerebral artery (odds ratio 3.279, 95% CI 2.332-6.720) were risk factors for the occurrence of DCI in aSAH patients (P < 0.05). In addition, evaluation of the predictive value revealed that combined use of the 2 indicators showed the highest predictive value (area under the curve 0.959, 95% CI 0.896-0.993). CONCLUSIONS Patients with aSAH complicated by DCI have relatively higher MBFV of middle cerebral artery and ADR. Combined use of the 2 indicators can provide reference for early prediction of DCI in aSAH patients.
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Affiliation(s)
- Zhicheng Dai
- Department of Neurosurgery, The First People's Hospital of Baiyin City, Baiyin, China.
| | - Lina Zhang
- Department of Electrophysiology, The First People's Hospital of Baiyin City, Baiyin, China
| | - Xuewu Liu
- Department of Neurosurgery, The First People's Hospital of Baiyin City, Baiyin, China
| | - Minqian Kou
- Department of Electrophysiology, The First People's Hospital of Baiyin City, Baiyin, China
| | - Longfei An
- Department of Neurosurgery, The First People's Hospital of Baiyin City, Baiyin, China
| | - Wenxuan Wang
- Department of Electrophysiology, The First People's Hospital of Baiyin City, Baiyin, China
| | - Jingyuan Xu
- Department of Electrophysiology, The First People's Hospital of Baiyin City, Baiyin, China
| | - Yan Su
- Department of Electrophysiology, The First People's Hospital of Baiyin City, Baiyin, China
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21
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Caylor MM, Macdonald RL. Pharmacological Prevention of Delayed Cerebral Ischemia in Aneurysmal Subarachnoid Hemorrhage. Neurocrit Care 2024; 40:159-169. [PMID: 37740138 DOI: 10.1007/s12028-023-01847-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Accepted: 08/23/2023] [Indexed: 09/24/2023]
Abstract
BACKGROUND Causes of morbidity and mortality following aneurysmal subarachnoid hemorrhage (aSAH) include early brain injury and delayed neurologic deterioration, which may result from delayed cerebral ischemia (DCI). Complex pathophysiological mechanisms underlie DCI, which often includes angiographic vasospasm (aVSP) of cerebral arteries. METHODS Despite the study of many pharmacological therapies for the prevention of DCI in aSAH, nimodipine-a dihydropyridine calcium channel blocker-remains the only drug recommended universally in this patient population. A common theme in the research of preventative therapies is the use of promising drugs that have been shown to reduce the occurrence of aVSP but ultimately did not improve functional outcomes in large, randomized studies. An example of this is the endothelin antagonist clazosentan, although this agent was recently approved in Japan. RESULTS The use of the only approved drug, nimodipine, is limited in practice by hypotension. The administration of nimodipine and its counterpart nicardipine by alternative routes, such as intrathecally or formulated as prolonged release implants, continues to be a rational area of study. Additional agents approved in other parts of the world include fasudil and tirilazad. CONCLUSIONS We provide a brief overview of agents currently being studied for prevention of aVSP and DCI after aSAH. Future studies may need to identify subpopulations of patients who can benefit from these drugs and perhaps redefine acceptable outcomes to demonstrate impact.
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Affiliation(s)
- Meghan M Caylor
- Department of Pharmacy, Temple University Hospital, Philadelphia, PA, USA
| | - R Loch Macdonald
- Community Neurosciences Institute, Community Health Partners, 7257 North Fresno Street, Fresno, CA, 93720, USA.
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22
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Ditz C, Matone MV, Schwachenwald B, Küchler J. Risks of nimodipine dose reduction during the high-risk period for delayed cerebral ischemia after aneurysmal subarachnoid hemorrhage. Neurosurg Rev 2024; 47:37. [PMID: 38191859 DOI: 10.1007/s10143-023-02273-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Revised: 12/12/2023] [Accepted: 12/31/2023] [Indexed: 01/10/2024]
Abstract
Nimodipine dose reduction is recommended in case of high vasopressor demand after aneurysmal subarachnoid hemorrhage (aSAH). The aim of this study was to assess potential adverse effects of nimodipine reduction during the high-risk period for delayed cerebral ischemia (DCI) and cerebral vasospasm (CVS) between days 5 and 10 after hemorrhage. Demographic and clinical data as well as daily nimodipine dose of aSAH patients admitted between 2010 and 2019 were retrospectively analyzed. Univariable and multivariable regression analyses were performed to identify factors associated with DCI, angiographic CVS, DCI-related infarction, and unfavorable outcome. A total of 205 patients were included. Nimodipine dose reduction occurred in 108 (53%) patients ('nimodipine reduction group'), while 97 patients (47%) received the full dose ('no nimodipine reduction group'), Patients in the 'nimodipine reduction group' had significant worse WFNS and Fisher grades and developed significantly more often DCI and angiographic CVS. DCI-related infarction and unfavorable outcome were also significantly increased in the 'nimodipine reduction group.' 'Reduced nimodipine dose' was the only independent predictor for the occurrence of DCI and angiographic CVS in multivariable regression analysis. 'Poor WFNS grade' and 'reduced nimodipine dose' were identified as independent risk factors for DCI-related infarction while 'older age,' 'poor WFNS grade,' and 'reduced nimodipine dose' were associated with unfavorable outcome at 3 months after discharge. Nimodipine dose reduction during the high-risk period of DCI and CVS between days 5 and 10 after hemorrhage might abrogate the positive prognostic effects of nimodipine and should be critically evaluated.
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Affiliation(s)
- Claudia Ditz
- Department of Neurosurgery, University Hospital of Schleswig-Holstein, Campus Lübeck, Ratzeburger Allee 160, 23538, Lübeck, Germany.
| | - Maria V Matone
- Department of Neurosurgery, University Hospital of Schleswig-Holstein, Campus Lübeck, Ratzeburger Allee 160, 23538, Lübeck, Germany
| | - Bram Schwachenwald
- Department of Neurosurgery, University Hospital of Schleswig-Holstein, Campus Lübeck, Ratzeburger Allee 160, 23538, Lübeck, Germany
| | - Jan Küchler
- Department of Neurosurgery, University Hospital of Schleswig-Holstein, Campus Lübeck, Ratzeburger Allee 160, 23538, Lübeck, Germany
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23
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Nakajima H, Okada T, Kawakita F, Oinaka H, Suzuki Y, Nampei M, Kitano Y, Nishikawa H, Fujimoto M, Miura Y, Yasuda R, Toma N, Suzuki H. Cilostazol May Improve Outcomes Even in Patients with Aneurysmal Subarachnoid Hemorrhage Aged 75 Years and Older: Multicenter Cohort Study and Propensity Score-Matched Analyses. World Neurosurg 2024; 181:e273-e290. [PMID: 37839574 DOI: 10.1016/j.wneu.2023.10.039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Revised: 10/07/2023] [Accepted: 10/08/2023] [Indexed: 10/17/2023]
Abstract
BACKGROUND The opportunities to treat elderly patients with aneurysmal subarachnoid hemorrhage (aSAH) are increasing globally, but the outcome remains poor. This study seeks to investigate treatment-related factors that can modify functional outcomes in patients with aSAH aged ≥75 years. METHODS A total of 202 patients with aSAH aged ≥75 years prospectively enrolled in 9 primary stroke centers from 2013 to 2021 were retrospectively analyzed. Clinical variables including treatments for hydrocephalus, angiographic vasospasm, and delayed cerebral ischemia were compared between patients with good (modified Rankin Scale [mRS] score 0-2) and poor (mRS score 3-6) outcomes at 90 days from onset, followed by multivariate analyses to find independent outcome determinants. A modifiable treatment-related variable was evaluated after propensity score matching with adjustments for age, sex, pre-onset mRS score, aSAH severity, and treatment modality. RESULTS More than half of patients showed World Federation of Neurological Societies grades IV-V on admission. Univariate analyses showed that advanced age, worse pre-onset mRS score, more severe neurologic status on admission, higher modified Fisher grade on admission computed tomography scans, and acute and chronic hydrocephalus were associated with poor outcomes. In contrast, administration of a phosphodiesterase type III inhibitor, cilostazol, was associated with good outcomes in both univariate (P = 0.036) and multivariate analyses (adjusted odds ratio, 0.305; 95% confidence interval, 0.097-0.955; P = 0.042). Propensity score matching analyses showed that patients treated with cilostazol had better outcomes (P = 0.016) with fewer incidences of delayed cerebral infarction (P = 0.008). CONCLUSIONS Even in patients with aSAH aged ≥75 years, cilostazol administration may lead to better outcomes by suppressing the development of delayed cerebral infarction.
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Affiliation(s)
- Hideki Nakajima
- Department of Neurosurgery, Mie University Graduate School of Medicine, Tsu, Japan.
| | - Takeshi Okada
- Department of Neurosurgery, Mie University Graduate School of Medicine, Tsu, Japan
| | - Fumihiro Kawakita
- Department of Neurosurgery, Mie University Graduate School of Medicine, Tsu, Japan
| | - Hiroki Oinaka
- Department of Neurosurgery, Mie University Graduate School of Medicine, Tsu, Japan
| | - Yume Suzuki
- Department of Neurosurgery, Mie University Graduate School of Medicine, Tsu, Japan
| | - Mai Nampei
- Department of Neurosurgery, Mie University Graduate School of Medicine, Tsu, Japan
| | - Yotaro Kitano
- Department of Neurosurgery, Mie University Graduate School of Medicine, Tsu, Japan
| | - Hirofumi Nishikawa
- Department of Neurosurgery, Mie University Graduate School of Medicine, Tsu, Japan
| | - Masashi Fujimoto
- Department of Neurosurgery, Mie University Graduate School of Medicine, Tsu, Japan
| | - Yoichi Miura
- Department of Neurosurgery, Mie University Graduate School of Medicine, Tsu, Japan
| | - Ryuta Yasuda
- Department of Neurosurgery, Mie University Graduate School of Medicine, Tsu, Japan
| | - Naoki Toma
- Department of Neurosurgery, Mie University Graduate School of Medicine, Tsu, Japan
| | - Hidenori Suzuki
- Department of Neurosurgery, Mie University Graduate School of Medicine, Tsu, Japan
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24
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Tian H, Wang G, Zhong Q, Zhou H. Usability of serum inter-α-trypsin inhibitor heavy chain 4 as a biomarker for assessing severity and predicting functional outcome after human aneurysmal subarachnoid hemorrhage: A prospective observational cohort study at a single institution. Clin Chim Acta 2024; 552:117679. [PMID: 38000457 DOI: 10.1016/j.cca.2023.117679] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Revised: 11/11/2023] [Accepted: 11/20/2023] [Indexed: 11/26/2023]
Abstract
BACKGROUND Inter-α-trypsin inhibitor heavy chain 4 (ITIH4) may harbor anti-inflammatory activities. We sought to discern the predictive significance of serum ITIH4 for delayed cerebral ischemia (DCI) and clinical outcomes of human aneurysmal subarachnoid hemorrhage (aSAH). METHODS At a single institution, we performed a prospective and observational cohort study of 148 patients with aSAH and 52 healthy controls. Poststroke six-month extended Glasgow Outcome Scale (GOSE) score of 1-4 was designated as a poor prognosis. Prognosis associations were verified using multivariate analysis. RESULTS As compared to controls, patients had significantly declined serum ITIH4 concentrations from admission until day 10, with the lowest concentrations at days 1-3 after stroke. Serum ITIH4 concentrations, which were substantially decreased with the increasing Hunt-Hess scores or modified Fisher scores, were independently correlated with the two scores. Moreover, serum ITIH4 concentrations, which were markedly elevated in the order of GOSE scores from 1 to 8, together with Hunt-Hess scores and modified Fisher scores were independently related to GOSE scores and poor prognosis. However, serum ITIH4 concentrations were not independently predictive of DCI. Prediction model of poor prognosis integrating the preceding three variables were delineated using the nomogram, were verified under the calibration curve, and displayed high discriminatory efficiencies under the receiver operating characteristic curve. CONCLUSIONS A significant decline of serum ITIH4 concentrations during the early phase after aSAH was closely related to severity and poor prognosis, assuming that serum ITIH4 may represent a promising prognostic biomarker of aSAH.
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Affiliation(s)
- Heping Tian
- Department of Neurosurgery, The Second Affiliated Hospital of Jiaxing University, Jiaxing 314000, People's Republic of China
| | - Genghuan Wang
- Department of Neurosurgery, The Second Affiliated Hospital of Jiaxing University, Jiaxing 314000, People's Republic of China
| | - Qi Zhong
- Department of Neurosurgery, The Second Affiliated Hospital of Jiaxing University, Jiaxing 314000, People's Republic of China
| | - Haihang Zhou
- Department of Neurosurgery, The Second Affiliated Hospital of Jiaxing University, Jiaxing 314000, People's Republic of China.
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25
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Liang R, Hu C, Tang X. Trends in Delayed Cerebral Ischemia After Subarachnoid Hemorrhage Over Past 10 years: A Bibliometric Analysis. World Neurosurg 2023; 180:97-106. [PMID: 37741333 DOI: 10.1016/j.wneu.2023.09.038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Revised: 09/11/2023] [Accepted: 09/12/2023] [Indexed: 09/25/2023]
Abstract
BACKGROUND As a common hemorrhagic cerebrovascular disease, subarachnoid hemorrhage (SAH) has high mortality and disability. Delayed cerebral ischemia (DCI) is among the major complications after SAH, severely affecting the patient prognosis. Through bibliometric analysis, this study investigated the global research status, trends, and hotspots of DCI after SAH from 2013 to 2022, providing a scientific reference for researchers in this field. METHODS We searched the Web of Science Core Collection for articles and associated records from 2013 to 2022. The data were analyzed and presented using VOSviewer software. RESULTS This study covered 3436 articles, and the number of publications issued by DCI after SAH study increased annually. The United States published the most papers and had the highest number of citations. Harvard University and World Neurosurgery were the institutions and journals with the most published papers. Keyword analysis indicated that the recent research on DCI after SAH has focused on its pathophysiological mechanisms. CONCLUSIONS DCI after SAH has drawn increasing interest in academic circles during the past decade. This study presented an objective, systematic, and comprehensive analysis of the literature on DCI after SAH. Currently, the hotspots in this field focus on pathophysiological mechanisms.
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Affiliation(s)
- Ruofei Liang
- Department of Neurosurgery, Affiliated Hospital of North Sichuan Medical College, Nanchong, China
| | - Chao Hu
- Department of Neurosurgery, Affiliated Hospital of North Sichuan Medical College, Nanchong, China
| | - Xiaoping Tang
- Department of Neurosurgery, Affiliated Hospital of North Sichuan Medical College, Nanchong, China.
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26
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Ho WM, Schmidt FA, Thomé C, Petr O. CSF metabolomics alterations after aneurysmal subarachnoid hemorrhage: what do we know? Acta Neurol Belg 2023; 123:2111-2114. [PMID: 37121932 PMCID: PMC10682053 DOI: 10.1007/s13760-023-02266-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Accepted: 04/05/2023] [Indexed: 05/02/2023]
Abstract
PURPOSE The purpose of this mini review is to describe metabolomics in cerebrospinal fluid (CSF) and its potential in aneurysmal subarachnoid hemorrhage (aSAH). In brain injury, patients' micro dialysis enables detecting biochemical change in brain tissue. Indicators for ischemia were detected such as lactate, pyruvate, glucose, and glutamate. In aSAH patients, the pathophysiology and the factor for poor outcome are not completely understood yet. Routine use of biomarkers in CSF, particularly in aSAH patients, is still lacking. METHODS This mini review was performed on the role of metabolomics alterations after aneurysmal subarachnoid hemorrhage. RESULTS We identified five clinical studies that addressed metabolomics in patients with aneurysmal subarachnoid hemorrhage. CONCLUSION There is increasing evidence suggesting that biomarkers can give insight in the pathogenesis and can serve as an outcome predictor. In this mini review, we present a brief overview of metabolomics profiling in neuroscience and wish to discuss the predictive and therapeutic value in aSAH patients.
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Affiliation(s)
- Wing Mann Ho
- Department of Neurosurgery, Medical University Innsbruck, Anichstrasse 35, 6020, Innsbruck, Austria
| | - Franziska A Schmidt
- Department of Neurosurgery, Medical University Innsbruck, Anichstrasse 35, 6020, Innsbruck, Austria
| | - Claudius Thomé
- Department of Neurosurgery, Medical University Innsbruck, Anichstrasse 35, 6020, Innsbruck, Austria
| | - Ondra Petr
- Department of Neurosurgery, Medical University Innsbruck, Anichstrasse 35, 6020, Innsbruck, Austria.
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Suzuki H, Miura Y, Yasuda R, Yago T, Mizutani H, Ichikawa T, Miyazaki T, Kitano Y, Nishikawa H, Kawakita F, Fujimoto M, Toma N. Effects of New-Generation Antiepileptic Drug Prophylaxis on Delayed Neurovascular Events After Aneurysmal Subarachnoid Hemorrhage. Transl Stroke Res 2023; 14:899-909. [PMID: 36333650 DOI: 10.1007/s12975-022-01101-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 10/17/2022] [Accepted: 10/24/2022] [Indexed: 11/07/2022]
Abstract
Neuroelectric disruptions such as seizures and cortical spreading depolarization may contribute to the development of delayed cerebral ischemia (DCI) after aneurysmal subarachnoid hemorrhage (SAH). However, effects of antiepileptic drug prophylaxis on outcomes remain controversial in SAH. The authors investigated if prophylactic administration of new-generation antiepileptic drugs levetiracetam and perampanel was beneficial against delayed neurovascular events after SAH. This was a retrospective single-center cohort study of 121 consecutive SAH patients including 56 patients of admission World Federation of Neurological Surgeons grades IV - V who underwent aneurysmal obliteration within 72 h post-SAH from 2013 to 2021. Prophylactic antiepileptic drugs differed depending on the study terms: none (2013 - 2015), levetiracetam for patients at high risks of seizures (2016 - 2019), and perampanel for all patients (2020 - 2021). The 3rd term had the lowest occurrence of delayed cerebral microinfarction on diffusion-weighted magnetic resonance imaging, which was related to less development of DCI. Other outcome measures were similar among the 3 terms including incidences of angiographic vasospasm, computed tomography-detectable delayed cerebral infarction, seizures, and 3-month good outcomes (modified Rankin Scale 0 - 2). The present study suggests that prophylactic administration of levetiracetam and perampanel was not associated with worse outcomes and that perampanel may have the potential to reduce DCI by preventing microcirculatory disturbances after SAH. Further studies are warranted to investigate anti-DCI effects of a selective α-amino-3-hydroxy-5-methyl-4-isoxazole propionate receptor antagonist perampanel in SAH patients in a large-scale prospective study.
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Affiliation(s)
- Hidenori Suzuki
- Department of Neurosurgery, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu, Mie, 514-8507, Japan.
| | - Yoichi Miura
- Center for Vessels and Heart, Mie University Hospital, Tsu, Japan
| | - Ryuta Yasuda
- Department of Neurosurgery, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu, Mie, 514-8507, Japan
| | - Tetsushi Yago
- Department of Neurosurgery, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu, Mie, 514-8507, Japan
| | - Hisashi Mizutani
- Department of Neurosurgery, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu, Mie, 514-8507, Japan
| | - Tomonori Ichikawa
- Department of Neurosurgery, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu, Mie, 514-8507, Japan
| | - Takahiro Miyazaki
- Department of Neurosurgery, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu, Mie, 514-8507, Japan
| | - Yotaro Kitano
- Department of Neurosurgery, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu, Mie, 514-8507, Japan
| | - Hirofumi Nishikawa
- Department of Neurosurgery, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu, Mie, 514-8507, Japan
| | - Fumihiro Kawakita
- Department of Neurosurgery, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu, Mie, 514-8507, Japan
| | - Masashi Fujimoto
- Department of Neurosurgery, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu, Mie, 514-8507, Japan
| | - Naoki Toma
- Department of Neurosurgery, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu, Mie, 514-8507, Japan
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Burth S, Meis J, Kronsteiner D, Heckhausen H, Zweckberger K, Kieser M, Wick W, Ulfert C, Möhlenbruch M, Ringleb P, Schönenberger S. Outcome analysis for patients with subarachnoid hemorrhage and vasospasm including endovascular treatment. Neurol Res Pract 2023; 5:57. [PMID: 37915071 PMCID: PMC10621117 DOI: 10.1186/s42466-023-00283-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Accepted: 09/14/2023] [Indexed: 11/03/2023] Open
Abstract
As a complication of subarachnoid hemorrhage (SAH), vasospasm substantially contributes to its morbidity and mortality. We aimed at analyzing predictors of outcome for these patients including the role of endovascular treatment (ET). Our database was screened for patients with SAH treated in our Neuro-ICU from 2009 to 2019. Clinical parameters including functional outcome (modified Rankin Scale, mRS of 0-2 or 3-6 at discharge and after a median follow-up of 18 months) and details about ET were gathered on 465 patients, 241 (52%) of whom experienced vasospasm. Descriptive analyses were performed to identify explanatory variables for the dichotomized mRS score. A logistic regression model was fitted on 241 patients with vasospasm including age, Hunt and Hess Score, extraventricular drainage (EVD), forced hypertension, ET and delayed cerebral ischemia (DCI). The model found a Hunt and Hess Score of 5 (OR = 0.043, p = 0.008), requirement of EVD (OR = 0.161, p < 0.001), forced hypertension (OR = 0.242, p = 0.001), ET (OR = 0.431, p = 0.043) and DCI (OR = 0.229, p < 0.001) to be negative predictors of outcome while age was not. Use of intraarterial nimodipine alone (OR = 0.778, p = 0.705) or including balloon angioplasty (OR = 0.894, p = 0.902) and number of ETs per patient (OR = 0.757, p = 0.416) were not significant in a separate model with otherwise identical variables. While DCI is clearly associated with poor outcome, the influence of ET on outcome remains inconclusive. Limited by their retrospective nature and an indication bias, these data encourage a randomized assessment of ET.
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Affiliation(s)
- Sina Burth
- Department of Neurology, Heidelberg University Hospital, Im Neuenheimer Feld 400, 69120, Heidelberg, Germany
| | - Jan Meis
- Institute of Medical Biometry, Heidelberg University Hospital, Im Neuenheimer Feld 130.3, 69120, Heidelberg, Germany
| | - Dorothea Kronsteiner
- Institute of Medical Biometry, Heidelberg University Hospital, Im Neuenheimer Feld 130.3, 69120, Heidelberg, Germany
| | - Helena Heckhausen
- Department of Neurology, Heidelberg University Hospital, Im Neuenheimer Feld 400, 69120, Heidelberg, Germany
| | - Klaus Zweckberger
- Departement of Neurosurgery, Städtisches Klinikum Braunschweig gGmbH, Salzdahlumer Street 90, 38126, Braunschweig, Germany
| | - Meinhard Kieser
- Institute of Medical Biometry, Heidelberg University Hospital, Im Neuenheimer Feld 130.3, 69120, Heidelberg, Germany
| | - Wolfgang Wick
- Department of Neurology, Heidelberg University Hospital, Im Neuenheimer Feld 400, 69120, Heidelberg, Germany
- DKFZ Department of Neurology and Neurooncology Program, National Center for Tumor Diseases, University Hospital Heidelberg, Heidelberg, Germany
- German Cancer Consortium (DKTK) and Clinical Cooperation Unit Neurooncology, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Christian Ulfert
- Department of Neuroradiology, Heidelberg University Hospital, Im Neuenheimer Feld 400, 69120, Heidelberg, Germany
| | - Markus Möhlenbruch
- Department of Neuroradiology, Heidelberg University Hospital, Im Neuenheimer Feld 400, 69120, Heidelberg, Germany
| | - Peter Ringleb
- Department of Neurology, Heidelberg University Hospital, Im Neuenheimer Feld 400, 69120, Heidelberg, Germany
| | - Silvia Schönenberger
- Department of Neurology, Heidelberg University Hospital, Im Neuenheimer Feld 400, 69120, Heidelberg, Germany.
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Thomson BR, Gürlek F, Buzzi RM, Schwendinger N, Keller E, Regli L, van Doormaal TP, Schaer DJ, Hugelshofer M, Akeret K. Clinical potential of automated convolutional neural network-based hematoma volumetry after aneurysmal subarachnoid hemorrhage. J Stroke Cerebrovasc Dis 2023; 32:107357. [PMID: 37734180 DOI: 10.1016/j.jstrokecerebrovasdis.2023.107357] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Revised: 09/08/2023] [Accepted: 09/11/2023] [Indexed: 09/23/2023] Open
Abstract
OBJECTIVES Cerebrospinal fluid hemoglobin has been positioned as a potential biomarker and drug target for aneurysmal subarachnoid hemorrhage-related secondary brain injury (SAH-SBI). The maximum amount of hemoglobin, which may be released into the cerebrospinal fluid, is defined by the initial subarachnoid hematoma volume (ISHV). In patients without external ventricular or lumbar drain, there remains an unmet clinical need to predict the risk for SAH-SBI. The aim of this study was to explore automated segmentation of ISHV as a potential surrogate for cerebrospinal fluid hemoglobin to predict SAH-SBI. METHODS This study is based on a retrospective analysis of imaging and clinical data from 220 consecutive patients with aneurysmal subarachnoid hemorrhage collected over a five-year period. 127 annotated initial non-contrast CT scans were used to train and test a convolutional neural network to automatically segment the ISHV in the remaining cohort. Performance was reported in terms of Dice score and intraclass correlation. We characterized the associations between ISHV and baseline cohort characteristics, SAH-SBI, ventriculoperitoneal shunt dependence, functional outcome, and survival. Established clinical (World Federation of Neurosurgical Societies, Hunt & Hess) and radiological (modified Fisher, Barrow Neurological Institute) scores served as references. RESULTS A strong volume agreement (0.73 Dice, range 0.43 - 0.93) and intraclass correlation (0.89, 95% CI, 0.81-0.94) were shown. While ISHV was not associated with the use of antithrombotics or cardiovascular risk factors, there was strong evidence for an association with a lower Glasgow Coma Scale at hospital admission. Aneurysm size and location were not associated with ISHV, but the presence of intracerebral or intraventricular hemorrhage were independently associated with higher ISHV. Despite strong evidence for a positive association between ISHV and SAH-SBI, the discriminatory ability of ISHV for SAH-SBI was insufficient. The discriminatory ability of ISHV was, however, higher regarding ventriculoperitoneal shunt dependence and functional outcome at three-months follow-up. Multivariate survival analysis provided strong evidence for an independent negative association between survival probability and both ISHV and intraventricular hemorrhage. CONCLUSIONS The proposed algorithm demonstrates strong performance in volumetric segmentation of the ISHV on the admission CT. While the discriminatory ability of ISHV for SAH-SBI was similar to established clinical and radiological scores, it showed a high discriminatory ability for ventriculoperitoneal shunt dependence and functional outcome at three-months follow-up.
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Affiliation(s)
- Bart R Thomson
- Department of Neurosurgery, Clinical Neuroscience Center, Universitätsspital und University of Zurich, Rämistrasse 100, Zurich CH-8091, Switzerland; Division of Internal Medicine, Universitätsspital and University of Zurich, Zurich, Switzerland
| | - Firat Gürlek
- Department of Neurosurgery, Clinical Neuroscience Center, Universitätsspital und University of Zurich, Rämistrasse 100, Zurich CH-8091, Switzerland; Division of Internal Medicine, Universitätsspital and University of Zurich, Zurich, Switzerland
| | - Raphael M Buzzi
- Division of Internal Medicine, Universitätsspital and University of Zurich, Zurich, Switzerland
| | - Nina Schwendinger
- Department of Neurosurgery, Clinical Neuroscience Center, Universitätsspital und University of Zurich, Rämistrasse 100, Zurich CH-8091, Switzerland
| | - Emanuela Keller
- Department of Neurosurgery, Clinical Neuroscience Center, Universitätsspital und University of Zurich, Rämistrasse 100, Zurich CH-8091, Switzerland; Neurointensive Care Unit, Department of Neurosurgery, and Institute of Intensive Care Medicine, Universitätsspital and University of Zurich, Zurich, Switzerland
| | - Luca Regli
- Department of Neurosurgery, Clinical Neuroscience Center, Universitätsspital und University of Zurich, Rämistrasse 100, Zurich CH-8091, Switzerland
| | - Tristan Pc van Doormaal
- Department of Neurosurgery, Clinical Neuroscience Center, Universitätsspital und University of Zurich, Rämistrasse 100, Zurich CH-8091, Switzerland; Department of Neurology and Neurosurgery, University Medical Center Utrecht, Utrecht, The Netherlands; Department of Translational Neuroscience, University Medical Center Utrecht, Brain Center, Utrecht University, Utrecht, The Netherlands
| | - Dominik J Schaer
- Division of Internal Medicine, Universitätsspital and University of Zurich, Zurich, Switzerland
| | - Michael Hugelshofer
- Department of Neurosurgery, Clinical Neuroscience Center, Universitätsspital und University of Zurich, Rämistrasse 100, Zurich CH-8091, Switzerland
| | - Kevin Akeret
- Department of Neurosurgery, Clinical Neuroscience Center, Universitätsspital und University of Zurich, Rämistrasse 100, Zurich CH-8091, Switzerland.
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Busse TL, Munthe S, Ketharanathan B, Bülow K, Jóhannsson B, Diaz A, Nielsen TH. Perfusion Computed Tomography as a Screening Tool for Pending Delayed Cerebral Ischemia in Comatose Patients After Aneurysmal Subarachnoid Hemorrhage: A Retrospective Cohort Study. Neurocrit Care 2023:10.1007/s12028-023-01855-6. [PMID: 37821720 DOI: 10.1007/s12028-023-01855-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Accepted: 09/05/2023] [Indexed: 10/13/2023]
Abstract
BACKGROUND Aneurysmal subarachnoid hemorrhage (aSAH) is frequently complicated by delayed cerebral ischemia (DCI), leading to poor outcomes. Early diagnosis of DCI is crucial for improving survival and outcomes but remains challenging in comatose patients. In this study, we aimed to evaluate computed tomography with angiography and perfusion (P-CT) as a screening modality on postictal days four and eight for impending DCI after aSAH in comatose patients using vasospasm with hypoperfusion (hVS) as a surrogate and DCI-related infarction as an outcome measure. Two objectives were set: (1) to evaluate the screening's ability to accurately risk stratify patients and (2) to assess the validity of P-CT screening. METHODS We conducted a retrospective review of the records of comatose patients with aSAH from January 2019 to December 2021 who were monitored with P-CT scans on days four and eight. The event rates of DCI-related infarction, hVS, and endovascular rescue therapy (ERT) were analyzed, and the sensitivity, specificity, negative predictive value (NPV), and positive predictive value (PPV) for DCI were calculated. DCI-related infarction was defined as new secondary cerebral infarction > 48 h < 6 weeks post aSAH not attributable to other causes, and hVS was defined as arterial narrowing with corresponding hypoperfusion on P-CT. RESULTS Fifty-six comatose patients were included, and 98 P-CT scans were performed. The incidence of DCI-related infarction was 40%. Screening P-CT on days four and eight found vasospasm in 23% of all patients, including 11% with hVS. A positive hVS on day four or eight revealed a relative risk of 2.4 [95% confidence interval (CI) 1.13-5.11, p = 0.03], sensitivity of 23% (95% CI 8-45, p = 0.03), specificity of 95% (95% CI 36-100, p = 0.03), PPV of 0.83 (95% CI 0.36-1.00, p = 0.03), and NPV of 0.65 (95% CI 0.50-0.78). Six positive P-CT scans led to digital subtraction angiography in five patients, three of whom received ERT. All ERT-intervened patients developed DCI-related infarction. CONCLUSIONS P-CT resulted in few interventions and often resulted in late detection of DCI at an irreversible stage. Although a positive P-CT result accurately predicts impending DCI-related infarction, screening on days four and eight alone in comatose patients with aSAH often fails to timely detect impending DCI. Based on our analysis, we cannot recommend P-CT as a screening modality. P-CT is likely best used as a confirmatory test prior to invasive interventions when guided by continuous multimodal monitoring; however, prospective studies with comparison groups are warranted. The need for a reliable continuous screening modality is evident because of the high rate of deterioration and narrow treatment window.
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Affiliation(s)
- Thor Löwe Busse
- Department of Neurosurgery, Odense University Hospital, Odense, Denmark.
| | - Sune Munthe
- Department of Neurosurgery, Odense University Hospital, Odense, Denmark
| | | | - Karsten Bülow
- Department of Anaesthesiology and Intensive Care, Odense University Hospital, Odense, Denmark
| | - Bjarni Jóhannsson
- Department of Neurosurgery, Odense University Hospital, Odense, Denmark
| | - Anabel Diaz
- Department of Radiology, Odense University Hospital, Odense, Denmark
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van der Harst JJ, Elting JWJ, Bokkers RPH, Veeger NJGM, van Donkelaar CE, van den Bergh WM, Metzemaekers JDM, Groen RJM, Mazuri A, Luijckx GJR, van Dijk JMC, Uyttenboogaart M. The Diagnostic Value of Near-Infrared Spectroscopy to Predict Delayed Cerebral Ischemia and Unfavorable Outcome After Subarachnoid Hemorrhage. World Neurosurg 2023; 178:e202-e212. [PMID: 37454906 DOI: 10.1016/j.wneu.2023.07.033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Accepted: 07/07/2023] [Indexed: 07/18/2023]
Abstract
OBJECTIVE Near-infrared spectroscopy (NIRS) is a noninvasive tool to monitor cerebral regional oxygen saturation. Impairment of microvascular circulation with subsequent cerebral hypoxia during delayed cerebral ischemia (DCI) is associated with poor functional outcome after subarachnoid hemorrhage (SAH). Therefore, NIRS could be useful to predict the risk for DCI and functional outcome. However, only limited data are available on NIRS regional cerebral tissue oxygen saturation (rSO2) distribution in SAH. The aim of this study was to compare the distribution of NIRS rSO2 values in patients with nontraumatic SAH with the occurrence of DCI and functional outcome at 2 months. In addition, the predictive value of NIRS rSO2 was compared with the previously validated SAFIRE grade (derived from Size of the aneurysm, Age, FIsher grade, World Federation of Neurosurgical Societies after REsuscitation). METHODS In this study, the rSO2 distribution of patients with and without DCI after SAH was compared. The optimal cutoff points to predict DCI and outcome were assessed, and its predictive value was compared with the SAFIRE grade. RESULTS Of 41 patients, 12 developed DCI, and 9 had unfavorable outcome at 60 days. Prediction of DCI with NIRS had an area under the curve of 0.77 (95% confidence interval 0.62-0.92; P = 0.0028) with an optimal cutoff point of 65% (sensitivity 1.00; specificity 0.45). Prediction of favorable outcome with NIRS had an area under the curve of 0.86 (95% confidence interval 0.74-0.98; P = 0.0003) with an optimal cutoff point of 63% (sensitivity 1.00; specificity 0.63). Regression analysis showed that NIRS rSO2 score is complementary to the SAFIRE grade. CONCLUSIONS NIRS rSO2 monitoring in patients with SAH may improve prediction of DCI and clinical outcome after SAH.
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Affiliation(s)
- J Joep van der Harst
- Department of Neurology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands.
| | - Jan Willem J Elting
- Department of Neurology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Reinoud P H Bokkers
- Department of Radiology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Nic J G M Veeger
- Department of Epidemiology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Carlina E van Donkelaar
- Department of Neurosurgery, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Walter M van den Bergh
- Department of Critical Care, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Jan D M Metzemaekers
- Department of Neurosurgery, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Rob J M Groen
- Department of Neurosurgery, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Aryan Mazuri
- Department of Radiology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Gert-Jan R Luijckx
- Department of Neurology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - J Marc C van Dijk
- Department of Neurosurgery, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Maarten Uyttenboogaart
- Department of Neurology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands; Department of Radiology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
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Arumadi A, Hrishi AP, Prathapadas U, Sethuraman M, Venket EH. Evaluation of markers of cerebral oxygenation and metabolism in patients undergoing clipping of cerebral aneurysm under total intravenous anesthesia versus inhalational anesthesia: A prospective randomized trial (COM-IVIN trial). Brain Circ 2023; 9:251-257. [PMID: 38284110 PMCID: PMC10821688 DOI: 10.4103/bc.bc_66_23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Revised: 09/11/2023] [Accepted: 09/14/2023] [Indexed: 01/30/2024] Open
Abstract
INTRODUCTION Anesthetic goals in patients undergoing clipping of cerebral aneurysm include maintenance of cerebral blood flow, oxygenation, and metabolism to avoid cerebral ischemia and maintenance of hemodynamic stability. We intend to study the influence of anesthetic agents on the outcome of aneurysmal subarachnoid hemorrhage (SAH). MATERIALS AND METHODS This is a prospective, randomized, parallel, single-center pilot trial approved by the Institutional Ethics Committee and is prospectively registered with the Clinical Trial Registry of India. Patients with aneurysmal SAH (aSAH) admitted to our institution for surgical clipping, fulfilling the trial inclusion criteria, will be randomized in a 1:1 allocation ratio utilizing a computerized random allocation sequence to receive either total intravenous anesthesia (n = 25) or inhalational anesthesia (n = 25). Our primary objective is to study the effects of these anesthetic techniques on cerebral oxygenation and metabolism in patients with aSAH. Our secondary objective is to evaluate the impact of these anesthetic techniques on the incidence of delayed cerebral ischemia and long-term patient outcomes in patients with aSAH. The Modified Rankin Score and Glasgow Outcome Scale (GOS) at discharge and 3 months following hospital discharge will be evaluated. An observer blinded to the study intervention will assess the outcome measures. DISCUSSION This study will provide more insight as to which is the ideal anesthetic agent that offers a better neurophysiological profile regarding intraoperative cerebral oxygenation and metabolism, thereby contributing to better postoperative outcomes in aSAH patients.
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Affiliation(s)
- Ashitha Arumadi
- Department of Neuroanesthesia and Critical Care, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, Kerala, India
| | - Ajay Prasad Hrishi
- Department of Neuroanesthesia and Critical Care, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, Kerala, India
| | - Unnikrishnan Prathapadas
- Department of Neuroanesthesia and Critical Care, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, Kerala, India
| | - Manikandan Sethuraman
- Department of Neuroanesthesia and Critical Care, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, Kerala, India
| | - Easwer Hari Venket
- Department of Neurosurgery, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, Kerala, India
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Abdulazim A, Heilig M, Rinkel G, Etminan N. Diagnosis of Delayed Cerebral Ischemia in Patients with Aneurysmal Subarachnoid Hemorrhage and Triggers for Intervention. Neurocrit Care 2023; 39:311-319. [PMID: 37537496 PMCID: PMC10542310 DOI: 10.1007/s12028-023-01812-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Accepted: 07/11/2023] [Indexed: 08/05/2023]
Abstract
INTRODUCTION Delayed cerebral ischemia (DCI) is a major determinant for poor neurological outcome after aneurysmal subarachnoid hemorrhage (aSAH). Detection and treatment of DCI is a key component in the neurocritical care of patients with aSAH after initial aneurysm repair. METHODS Narrative review of the literature. RESULTS Over the past 2 decades, there has been a paradigm shift away from macrovascular (angiographic) vasospasm as a main diagnostic and therapeutic target. Instead, the pathophysiology of DCI is hypothesized to derive from several proischemic pathomechanisms. Clinical examination remains the most reliable means for monitoring and treatment of DCI, but its value is limited in comatose patients. In such patients, monitoring of DCI is usually based on numerous neurophysiological and/or radiological diagnostic modalities. Catheter angiography remains the gold standard for the detection of macrovascular spasm. Computed tomography (CT) angiography is increasingly used instead of catheter angiography because it is less invasive and may be combined with CT perfusion imaging. CT perfusion permits semiquantitative cerebral blood flow measurements, including the evaluation of the microcirculation. It may be used for prediction, early detection, and diagnosis of DCI, with yet-to-prove benefit on clinical outcome when used as a screening modality. Transcranial Doppler may be considered as an additional noninvasive screening tool for flow velocities in the middle cerebral artery, with limited accuracy in other cerebral arteries. Continuous electroencephalography enables detection of early signs of ischemia at a reversible stage prior to clinical manifestation. However, its widespread use is still limited because of the required infrastructure and expertise in data interpretation. Near-infrared spectroscopy, a noninvasive and continuous modality for evaluation of cerebral blood flow dynamics, has shown conflicting results and needs further validation. Monitoring techniques beyond neurological examinations may help in the detection of DCI, especially in comatose patients. However, these techniques are limited because of their invasive nature and/or restriction of measurements to focal brain areas. CONCLUSION The current literature review underscores the need for incorporating existing modalities and developing new methods to evaluate brain perfusion, brain metabolism, and overall brain function more accurately and more globally.
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Affiliation(s)
- Amr Abdulazim
- Department of Neurosurgery, Medical Faculty Mannheim, University Hospital Mannheim, University of Heidelberg, Theodor-Kutzer-Ufer 1-3, 68167, Mannheim, Germany.
| | - Marina Heilig
- Department of Neurosurgery, Medical Faculty Mannheim, University Hospital Mannheim, University of Heidelberg, Theodor-Kutzer-Ufer 1-3, 68167, Mannheim, Germany
| | - Gabriel Rinkel
- Department of Neurosurgery, Medical Faculty Mannheim, University Hospital Mannheim, University of Heidelberg, Theodor-Kutzer-Ufer 1-3, 68167, Mannheim, Germany
| | - Nima Etminan
- Department of Neurosurgery, Medical Faculty Mannheim, University Hospital Mannheim, University of Heidelberg, Theodor-Kutzer-Ufer 1-3, 68167, Mannheim, Germany
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Lin Q, Ye L, Dai J, Ye Z, Ba H, Li Z, Chen X, Chen M, Lu C, Sun J, Cai J. A prospective cohort study on decreased serum apelin-13 levels after human aneurysmal subarachnoid hemorrhage: associations with severity and prognosis. Neurosurg Rev 2023; 46:235. [PMID: 37682366 DOI: 10.1007/s10143-023-02142-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Revised: 08/28/2023] [Accepted: 09/02/2023] [Indexed: 09/09/2023]
Abstract
Apelin-13 may have neuroprotective effects. We aimed to determine whether serum apelin-13 could serve as a potential biomarker for severity, delayed cerebral ischemia (DCI), and prognosis after human aneurysmal subarachnoid hemorrhage (aSAH). In this prospective, observational, cohort, single-center study of 139 patients with aSAH and 139 healthy individuals, serum apelin-13 levels were determined. The indicators of stroke severity were the Hunt-Hess scale and the modified Fisher grading scale. The prognostic parameters were DCI and 6-month worse prognosis (Extended Glasgow Outcome Scale scores of 1-4). Using binary logistic regression analysis, the relationship between serum apelin-13 levels and prognosis was reported as odds ratios (ORs) with 95% confidence intervals (CIs). Under the receiver operating characteristic curve, prognostic abilities were shown as areas under the curve (AUCs) with 95% CIs. Serum apelin-13 levels were substantially lower in patients than in controls (median, 28.8 versus 48.6 ng/ml; P < 0.001), in patients with DCI than in non-DCI patients (median, 14.9 versus 31.6 ng/ml; P < 0.001), and in patients with worse prognosis than in those with good prognosis (median, 16.3 versus 33.7 ng/ml; P < 0.001). Serum apelin-13 levels were independently correlated with Hunt-Hess scores (beta, -6.836; 95% CI, -8.963-4.708; VIF, 2.219; P = 0.001) and modified Fisher scores (beta, -3.350; 95% CI, -6.151-0.549; VIF, 1.562; P = 0.019). Serum apelin-13 levels were an independent predictor of DCI (OR, 0.951; 95% CI, 0.914-0.990; P = 0.022) and worse prognosis (OR, 0.954; 95% CI, 0.916-0.993; P = 0.013). Serum apelin-13 levels significantly differentiated DCI and poor prognosis, with AUCs of 0.753 (95% CI, 0.656-0.850) and 0.791 (95% CI, 0.713-0.868) respectively. Using the Youden method, serum apelin-13 levels < 19.3 ng/ml distinguished the risk of DCI with 64.7% sensitivity and 77.1% specificity, and serum apelin-13 levels < 30.2 ng/ml discriminated the development of worse prognosis with 89.1% sensitivity and 63.4% specificity. Serum apelin-13 levels combined with Hunt-Hess scores and modified Fisher scores displayed a significantly higher AUC than any one of them for prognostic prediction (all P < 0.05). Decreased serum apelin-13 levels, which are strongly correlated with disease severity, independently predicted poor outcomes following aSAH, substantializing serum apelin-13 as a useful prognostic biomarker of aSAH.
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Affiliation(s)
- Qun Lin
- Department of Neurosurgery, The Wenzhou Central Hospital, The Dingli Clinical College of Wenzhou Medical University, 252 Bailidong Road, Wenzhou, 325000, China
| | - Liangzhi Ye
- Department of Neurosurgery, The Wenzhou Central Hospital, The Dingli Clinical College of Wenzhou Medical University, 252 Bailidong Road, Wenzhou, 325000, China
| | - Junxia Dai
- Department of Neurosurgery, The Wenzhou Central Hospital, The Dingli Clinical College of Wenzhou Medical University, 252 Bailidong Road, Wenzhou, 325000, China
| | - Zhengrong Ye
- The Central Blood Station of Wenzhou, 451 Nixian Road, Wenzhou, 325026, China
| | - Huajun Ba
- Department of Neurosurgery, The Wenzhou Central Hospital, The Dingli Clinical College of Wenzhou Medical University, 252 Bailidong Road, Wenzhou, 325000, China
| | - Zhiwei Li
- Department of Neurosurgery, The Wenzhou Central Hospital, The Dingli Clinical College of Wenzhou Medical University, 252 Bailidong Road, Wenzhou, 325000, China
| | - Xiaoxiang Chen
- Department of Neurosurgery, The Wenzhou Central Hospital, The Dingli Clinical College of Wenzhou Medical University, 252 Bailidong Road, Wenzhou, 325000, China
| | - Maohua Chen
- Department of Neurosurgery, The Wenzhou Central Hospital, The Dingli Clinical College of Wenzhou Medical University, 252 Bailidong Road, Wenzhou, 325000, China
| | - Chuan Lu
- Department of Neurosurgery, The Wenzhou Central Hospital, The Dingli Clinical College of Wenzhou Medical University, 252 Bailidong Road, Wenzhou, 325000, China
| | - Jun Sun
- Department of Neurosurgery, The Wenzhou Central Hospital, The Dingli Clinical College of Wenzhou Medical University, 252 Bailidong Road, Wenzhou, 325000, China
| | - Jianyong Cai
- Department of Neurosurgery, The Wenzhou Central Hospital, The Dingli Clinical College of Wenzhou Medical University, 252 Bailidong Road, Wenzhou, 325000, China.
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Santana LS, Diniz JBC, Rabelo NN, Teixeira MJ, Figueiredo EG, Telles JPM. Machine Learning Algorithms to Predict Delayed Cerebral Ischemia After Subarachnoid Hemorrhage: A Systematic Review and Meta-analysis. Neurocrit Care 2023:10.1007/s12028-023-01832-z. [PMID: 37667079 DOI: 10.1007/s12028-023-01832-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Accepted: 08/04/2023] [Indexed: 09/06/2023]
Abstract
Delayed cerebral ischemia (DCI) is a common and severe complication after subarachnoid hemorrhage (SAH). Logistic regression (LR) is the primary method to predict DCI, but it has low accuracy. This study assessed whether other machine learning (ML) models can predict DCI after SAH more accurately than conventional LR. PubMed, Embase, and Web of Science were systematically searched for studies directly comparing LR and other ML algorithms to forecast DCI in patients with SAH. Our main outcome was the accuracy measurement, represented by sensitivity, specificity, and area under the receiver operating characteristic. In the six studies included, comprising 1828 patients, about 28% (519) developed DCI. For LR models, the pooled sensitivity was 0.71 (95% confidence interval [CI] 0.57-0.84; p < 0.01) and the pooled specificity was 0.63 (95% CI 0.42-0.85; p < 0.01). For ML models, the pooled sensitivity was 0.74 (95% CI 0.61-0.86; p < 0.01) and the pooled specificity was 0.78 (95% CI 0.71-0.86; p = 0.02). Our results suggest that ML algorithms performed better than conventional LR at predicting DCI.Trial Registration: PROSPERO (International Prospective Register of Systematic Reviews) CRD42023441586; https://www.crd.york.ac.uk/prospero/display_record.php?RecordID=441586.
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Liao B, Xu Q, Lu P, Zhang Y. The prognostic value of systemic immune-inflammation index in patients with aneurysmal subarachnoid hemorrhage: a systematic review. Neurosurg Rev 2023; 46:219. [PMID: 37659015 DOI: 10.1007/s10143-023-02133-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2023] [Revised: 06/30/2023] [Accepted: 08/28/2023] [Indexed: 09/05/2023]
Abstract
Aneurysmal subarachnoid hemorrhage (aSAH) is a devastating and life-threatening stroke subtype, that has a high disability and fatality rate. By the use of the systemic immune-inflammation index (SII), it is possible to understand the pathophysiology that underlies immune and inflammatory responses and anticipate consequences including delayed cerebral ischemia (DCI), delayed cerebral vasospasm, and functional outcome. A systematic search of the English-language literature in PubMed and Embase was performed to locate articles addressing the usage of SII in aSAH patients. The cutoff value, sensitivity, specificity, and area-under-the curve (AUC) of the receiver operating characteristic (ROC) curve were collected. Four publications were reviewed after applying the exclusion criteria from the 53 included articles. All the studies indicated that higher SII on admission was significantly associated with poor prognosis. The research examined in this paper provides the earliest indications that higher SII predicts DCI, delayed cerebral vasospasm, and functional outcome, even though other medical subspecialties have used this ratio for a long time to make such predictions.
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Affiliation(s)
- Bingyao Liao
- Department of Emergency, Sichuan Academy of Medical Sciences, Sichuan Provincial People's Hospital, Chengdu, 610072, Sichuan, China
| | - Qingyu Xu
- Department of Neurosurgery, Sichuan Science City Hospital, Mianyang, 621000, Sichuan, China
| | - Peng Lu
- Department of Neurosurgery, Sichuan Science City Hospital, Mianyang, 621000, Sichuan, China
| | - Yunxia Zhang
- Department of Geriatric, The Third Hospital of Mianyang, Sichuan Mental Health Center, Mianyang, 621000, Sichuan, China.
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Sorrentino ZA, Desai A, Eisinger RS, Maciel CB, Busl KM, Lucke-Wold B. Evaluating analgesic medications utilized in the treatment of aneurysmal subarachnoid hemorrhage and association with delayed cerebral ischemia. J Clin Neurosci 2023; 115:157-162. [PMID: 37579712 DOI: 10.1016/j.jocn.2023.07.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Revised: 07/16/2023] [Accepted: 07/26/2023] [Indexed: 08/16/2023]
Abstract
BACKGROUND Spontaneous aneurysmal subarachnoid hemorrhage (aSAH) recovery may be hampered by delayed cerebral ischemia (DCI). Herein, we sought to identify whether frequently administered medications in the intensive care unit (ICU) are associated with DCI. METHODS In this retrospective study, patients admitted to a tertiary care center neuro-ICU between 2012 and 2019 with aSAH who could verbalize pain intensity scores were included. Medication dosages and clinical characteristics were abstracted from the medical record. Both paired and unpaired analyses were utilized to measure individual DCI risk for a given patient in relation to drug dosages. RESULTS 119 patients were included; average age was 61.7 ± 15.2 (SD) years, 89 (74.7%) were female, and 32 (26.9%) experienced DCI during admission. Patients with DCI had longer length of stay (19.3 ± 7.4 vs 12.7 ± 5.3 days, p < 0.0001). The combination medication of acetaminophen 325 mg/butalbital 50 mg/caffeine 40 mg (A/B/C) was associated with decreased DCI on paired (2.3 ± 2.0 vs 3.1 ± 1.9 tabs, p = 0.034) and unpaired analysis (1.84 ± 2.4 vs 2.6 ± 2.4 tabs, p < 0.001). No associations were found between DCI and opioids, dexamethasone, levetiracetam, or acetaminophen. Max and mean daily headache pain was not associated with DCI occurrence. CONCLUSION We identified an association between a commonly administered analgesic and DCI. A/B/C is associated with decreased DCI in this study, while other medications are not associated with DCI risk.
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Affiliation(s)
- Zachary A Sorrentino
- University of Florida College of Medicine, Gainesville, FL, USA; Department of Neurosurgery, University of Florida College of Medicine, Gainesville, FL, USA
| | - Ansh Desai
- Case Western Reserve University School of Medicine, Cleveland, OH, USA
| | | | - Carolina B Maciel
- University of Florida College of Medicine, Gainesville, FL, USA; Department of Neurology, McKnight Brain Institute, University of Florida College of Medicine, Gainesville, FL, USA; Department of Neurology, Yale University, New Haven, CT, USA; Department of Neurology, University of Utah, Salt Lake City, UT, USA
| | - Katharina M Busl
- University of Florida College of Medicine, Gainesville, FL, USA; Department of Neurology, McKnight Brain Institute, University of Florida College of Medicine, Gainesville, FL, USA
| | - Brandon Lucke-Wold
- University of Florida College of Medicine, Gainesville, FL, USA; Department of Neurosurgery, University of Florida College of Medicine, Gainesville, FL, USA.
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Sene PM, Gebai A, Kopel T, Cailhier JF, Lafrance D, Côté JM. Suspected medullary washout leading to severe polyuria following delayed cerebral ischemia: a case report. BMC Nephrol 2023; 24:257. [PMID: 37658303 PMCID: PMC10472600 DOI: 10.1186/s12882-023-03281-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Accepted: 07/24/2023] [Indexed: 09/03/2023] Open
Abstract
BACKGROUND Delayed cerebral ischemia is a clinical entity commonly encountered in patients presenting with acute neurological injury and is often complicated by dysnatremias, such as the cerebral salt wasting syndrome. In this case report, we described an exceptional case of polyuria attributed to an initial cerebral salt wasting phenomenon and iatrogenic-induced medullary washout. CASE PRESENTATION A 53-year-old woman was admitted to our hospital for the management of a Modified Fisher scale grade 4 subarachnoid hemorrhage due to a ruptured posterior communicating aneurysm. She was initially managed with coil embolization and external ventricular drain due to secondary hydrocephalus. Throughout the course of her hospitalization, she developed severe polyuria reaching up to 40L per day. To keep up with the excessive urinary losses and maintain appropriate cerebral perfusion, fluid replacement therapy was adjusted every hour, reaching up to 1.3 L of crystalloid per hour in addition to aminergic support. An initial diagnosis of partial diabetes insipidus, followed by a cerebral salt wasting syndrome was suspected. While the urine output continued to increase, her serum urea concentration progressively decreased to a point of almost being undetectable on day 9. At that time, the presence of an interstitial medulla washout was hypothesized. Various pharmacological and non-pharmacological interventions were progressively introduced to regain normal renal homeostasis, including non-steroidal anti-inflammatory drugs, fludrocortisone, oral urea and high-protein intake. Medications were progressively weaned, and the patient was successfully discharged from the ICU. CONCLUSIONS Cerebral salt wasting should be considered in the initial differential diagnosis of a patient presenting with polyuria in the context of acute neurological injury. Early recognition of this entity is critical to quickly implement proper management. However, as shown in this case report, the concomitance of delayed cerebral ischemia may complexify that management.
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Affiliation(s)
- Pape-Mamadou Sene
- Division of Nephrology, Department of Medicine, Centre Hospitalier de l'Université de Montréal, Montréal, Canada
| | - Ahmad Gebai
- Division of Nephrology, Department of Medicine, Centre Hospitalier de l'Université de Montréal, Montréal, Canada
| | - Tal Kopel
- Division of Nephrology, Department of Medicine, Centre Hospitalier de l'Université de Montréal, Montréal, Canada
| | - Jean-François Cailhier
- Division of Nephrology, Department of Medicine, Centre Hospitalier de l'Université de Montréal, Montréal, Canada
- Centre de recherche du Centre Hospitalier de l'Université de Montréal, Montréal, Canada
| | - Dominique Lafrance
- Division of Intensive Care, Department of Medicine, Centre Hospitalier de l'Université de Montréal, Montréal, Canada
| | - Jean-Maxime Côté
- Division of Nephrology, Department of Medicine, Centre Hospitalier de l'Université de Montréal, Montréal, Canada.
- Centre de recherche du Centre Hospitalier de l'Université de Montréal, Montréal, Canada.
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Muraoka S, Asai T, Fukui T, Ota S, Shimato S, Koketsu N, Nishizawa T, Araki Y, Saito R. Real-world data of clazosentan in combination therapy for aneurysmal subarachnoid hemorrhage: a multicenter retrospective cohort study. Neurosurg Rev 2023; 46:195. [PMID: 37555872 DOI: 10.1007/s10143-023-02104-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 07/25/2023] [Accepted: 08/01/2023] [Indexed: 08/10/2023]
Abstract
Aneurysmal subarachnoid hemorrhage (aSAH) may lead to cerebral vasospasm, significantly associated with morbidity and mortality. In double-blind, placebo-controlled phase 3 studies, clazosentan reduces cerebral vasospasm-related morbidity and all-cause mortality in patients with aSAH. There are no reports about the clinical efficacy of clazosentan combination therapy with some other drugs. Initially, we explored the efficacy of clazosentan combination therapy with cilostazol, statin, and antiepileptic drugs. Subsequently, we assessed the add-on effect of fasudil to clazosentan combination therapy for aSAH patients. This multicenter, retrospective, observational cohort study included Japanese patients with aSAH between June 2022 and March 2023. The primary outcome was the ordinal score on the modified Rankin Scale (mRS; range, 0-6, with elevated scores indicating greater disability) at discharge. Among the 47 cases (women 74.5%; age 64.4 ± 15.0 years) undergoing clazosentan combination therapy, 29 (61.7%) resulted in favorable outcomes. Overall, vasospasm occurred in 16 cases (34.0%), with four cases (8.5%) developing vasospasm-related delayed cerebral ischemia (DCI). Both hypotension and vasospasm-related DCI were related to unfavorable outcome at discharge. Fasudil were added in 18 (38.3%) cases. Despite adding fasudil to clazosentan combination therapy, the incidence of aSAH-related vasospasm did not decrease. Added-on fasudil to combination therapy related to pulmonary edema, vasospasm, and vasospasm-related DCI, and unfavorable outcomes. Clazosentan combination therapy could potentially result in favorable outcomes for aSAH patients to prevent post-aSAH vasospasm-related DCI. The add-on effect of fasudil to combination therapy did not demonstrate a significant impact in reducing aSAH-related vasospasm or improving outcomes at discharge.
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Affiliation(s)
- Shinsuke Muraoka
- Department of Neurosurgery, Kariya Toyota General Hospital, Kariya, Aichi, Japan.
| | - Takumi Asai
- Department of Neurosurgery, Kariya Toyota General Hospital, Kariya, Aichi, Japan
| | - Takahiko Fukui
- Department of Neurosurgery, Kariya Toyota General Hospital, Kariya, Aichi, Japan
| | - Shinji Ota
- Department of Neurosurgery, Handa City Hospital, Handa, Aichi, Japan
| | - Shinji Shimato
- Department of Neurosurgery, Handa City Hospital, Handa, Aichi, Japan
| | - Naoki Koketsu
- Department of Neurosurgery, Tosei General Hospital, Seto, Aichi, Japan
| | - Toshihisa Nishizawa
- Department of Neurosurgery, Kariya Toyota General Hospital, Kariya, Aichi, Japan
| | - Yoshio Araki
- Department of Neurosurgery, Japanese Red Cross Aichi Medical Center Nagoya Daini Hospital, Nagoya, Aichi, Japan
| | - Ryuta Saito
- Department of Neurosurgery, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan
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Deem S, Diringer M, Livesay S, Treggiari MM. Hemodynamic Management in the Prevention and Treatment of Delayed Cerebral Ischemia After Aneurysmal Subarachnoid Hemorrhage. Neurocrit Care 2023; 39:81-90. [PMID: 37160848 DOI: 10.1007/s12028-023-01738-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Accepted: 04/13/2023] [Indexed: 05/11/2023]
Abstract
One of the most serious complications after subarachnoid hemorrhage (SAH) is delayed cerebral ischemia, the cause of which is multifactorial. Delayed cerebral ischemia considerably worsens neurological outcome and increases the risk of death. The targets of hemodynamic management of SAH have widely changed over the past 30 years. Hypovolemia and hypotension were favored prior to the era of early aneurysmal surgery but were subsequently replaced by the use of hypervolemia and hypertension. More recently, the concept of goal-directed therapy targeting euvolemia, with or without hypertension, is gaining preference. Despite the evolving concepts and the vast literature, fundamental questions related to hemodynamic optimization and its effects on cerebral perfusion and patient outcomes remain unanswered. In this review, we explain the rationale underlying the approaches to hemodynamic management and provide guidance on contemporary strategies related to fluid administration and blood pressure and cardiac output manipulation in the management of SAH.
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Affiliation(s)
- Steven Deem
- Neurocritical Care Unit, Swedish Medical Center, Seattle, WA, USA.
| | - Michael Diringer
- Department of Neurology and Neurosurgery, Washington University in St. Louis, St. Louis, MO, USA
| | - Sarah Livesay
- Department of Anesthesiology and Pain Medicine, Harborview Medical Center, University of Washington, Seattle, WA, USA
- College of Nursing, Rush University, Chicago, IL, USA
| | - Miriam M Treggiari
- Department of Anesthesiology, Duke University Medical School, Durham, NC, USA
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Zeineddine HA, Divito A, McBride DW, Pandit P, Capone S, Dawes BH, Chen CJ, Grotta JC, Blackburn SL. Subarachnoid Blood Clearance and Aneurysmal Subarachnoid Hemorrhage Outcomes: A Retrospective Review. Neurocrit Care 2023; 39:172-179. [PMID: 37100974 DOI: 10.1007/s12028-023-01729-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Accepted: 04/03/2023] [Indexed: 04/28/2023]
Abstract
BACKGROUND Delayed cerebral ischemia (DCI) continues to be a significant contributor to morbidity and mortality following aneurysmal subarachnoid hemorrhage (aSAH). Subarachnoid blood and its degradation products have been implicated in DCI, and faster blood clearance has been hypothesized to confer better outcomes. This study evaluates the relationship between blood volume and its clearance on DCI (primary outcome) and location at 30 days (secondary outcome) after aSAH. METHODS This is a retrospective review of adult patients presenting with aSAH. Hijdra sum scores (HSS) were assessed independently for each computed tomography (CT) scan of patients with available scans on post-bleed days 0-1 and 2-10. This cohort was used to evaluate the course of subarachnoid blood clearance (group 1). A subset of patients in the first cohort with available CT scans on both post-bleed days 0-1 and post-bleed days 3-4 composed the second cohort (group 2). This group was used to evaluate the association between initial subarachnoid blood (measured via HSS post-bleed days 0-1) and its clearance (measured via percentage reduction [HSS %Reduction] and absolute reduction [HSS-Abs-Reduction] in HSS between days 0-1 and 3-4) on outcomes. Univariable and multivariable logistic regression models were used to identify outcome predictors. RESULTS One hundred fifty-six patients were in group 1, and 72 patients were in group 2. In this cohort, HSS %Reduction was associated with decreased risk of DCI in univariate (odds ratio [OR] = 0.700 [0.527-0.923], p = 0.011) and multivariable (OR = 0.700 [0.527-0.923], p = 0.012) analyses. Higher HSS %Reduction was significantly more likely to have better outcomes at 30 days in the multivariable analysis (OR = 0.703 [0.507-0.980], p = 0.036). Initial subarachnoid blood volume was associated with outcome location at 30 days (OR = 1.331 [1.040-1.701], p = 0.023) but not DCI (OR = 0.945 [0.780-1.145], p = 0.567). CONCLUSIONS Early blood clearance after aSAH was associated with DCI (univariable and multivariable analyses) and outcome location at 30 days (multivariable analysis). Methods facilitating subarachnoid blood clearance warrant further investigation.
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Affiliation(s)
- Hussein A Zeineddine
- Department of Neurosurgery, University of Texas Health Science Center at Houston, University of Texas McGovern Medical School, Houston, TX, USA
| | - Anthony Divito
- Department of Anesthesiology and Critical Care Medicine, Johns Hopkins University, Baltimore, MD, USA
| | - Devin W McBride
- Department of Neurosurgery, University of Texas Health Science Center at Houston, University of Texas McGovern Medical School, Houston, TX, USA
| | - Peeyush Pandit
- Department of Neurosurgery, University of Texas Health Science Center at Houston, University of Texas McGovern Medical School, Houston, TX, USA
| | - Stephen Capone
- Department of Neurosurgery, University of Texas Health Science Center at Houston, University of Texas McGovern Medical School, Houston, TX, USA
| | - Bryden H Dawes
- Department of Neurosurgery, University of Texas Health Science Center at Houston, University of Texas McGovern Medical School, Houston, TX, USA
| | - Ching-Jen Chen
- Department of Neurosurgery, University of Texas Health Science Center at Houston, University of Texas McGovern Medical School, Houston, TX, USA
| | - James C Grotta
- Clinical Innovation and Research Institute, Memorial Hermann Hospital-Texas Medical Center, Houston, TX, USA
| | - Spiros L Blackburn
- Department of Neurosurgery, University of Texas Health Science Center at Houston, University of Texas McGovern Medical School, Houston, TX, USA.
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Rass V, Kindl P, Lindner A, Kofler M, Altmann K, Putnina L, Ianosi BA, Schiefecker AJ, Beer R, Pfausler B, Helbok R. Blood Pressure Changes in Association with Nimodipine Therapy in Patients with Spontaneous Subarachnoid Hemorrhage. Neurocrit Care 2023; 39:104-115. [PMID: 37308727 PMCID: PMC10499738 DOI: 10.1007/s12028-023-01760-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Accepted: 05/16/2023] [Indexed: 06/14/2023]
Abstract
BACKGROUND Nimodipine is recommended to prevent delayed cerebral ischemia in patients with spontaneous subarachnoid hemorrhage (SAH). Here, we studied hemodynamic side effects of different nimodipine formulations (per os [PO] and intravenous [IV]) in patients with SAH undergoing continuous blood pressure monitoring. METHODS This observational cohort study includes consecutive patients with SAH (271 included in the IV group, 49 in the PO group) admitted to a tertiary care center between 2010 and 2021. All patients received prophylactic IV or PO nimodipine. Hemodynamic responses were evaluated based on median values within the first hour after continuous IV nimodipine initiation or PO nimodipine application (601 intakes within 15 days). Significant changes were defined as > 10% drop in systolic blood pressure (SBP) or diastolic blood pressure from baseline (median values 30 min before nimodipine application). With the use of multivariable logistic regression, risk factors associated with SBP drops were identified. RESULTS Patients were admitted with a median Hunt & Hess score of 3 (2-5; IV 3 [2-5], PO 1 [1-2], p < 0.001) and were 58 (49-69) years of age. Initiation of IV nimodipine was associated with a > 10% SBP drop in 30% (81/271) of patients, with a maximum effect after 15 min. A start or increase in noradrenaline was necessary in 136/271 (50%) patients, and colloids were administered in 25/271 (9%) patients within 1 h after IV nimodipine initiation. SBP drops > 10% occurred after 53/601 (9%) PO nimodipine intakes, with a maximum effect after 30-45 min in 28/49 (57%) patients. Noradrenaline application was uncommon (3% before and 4% after nimodipine PO intake). Hypotensive episodes to an SBP < 90 mm Hg were not observed after IV or PO nimodipine application. In multivariable analysis, only a higher SBP at baseline was associated with a > 10% drop in SBP after IV (p < 0.001) or PO (p = 0.001) nimodipine application, after adjusting for the Hunt & Hess score on admission, age, sex, mechanical ventilation, days after intensive care unit admission, and delayed cerebral ischemia. CONCLUSIONS Significant drops in SBP occur in one third of patients after the start of IV nimodipine and after every tenth PO intake. Early recognition and counteracting with vasopressors or fluids seems necessary to prevent hypotensive episodes.
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Affiliation(s)
- Verena Rass
- Neurological Intensive Care Unit, Department of Neurology, Medical University of Innsbruck, Anichstrasse 35, 6020, Innsbruck, Austria.
| | - Philipp Kindl
- Neurological Intensive Care Unit, Department of Neurology, Medical University of Innsbruck, Anichstrasse 35, 6020, Innsbruck, Austria
| | - Anna Lindner
- Neurological Intensive Care Unit, Department of Neurology, Medical University of Innsbruck, Anichstrasse 35, 6020, Innsbruck, Austria
| | - Mario Kofler
- Neurological Intensive Care Unit, Department of Neurology, Medical University of Innsbruck, Anichstrasse 35, 6020, Innsbruck, Austria
| | - Klaus Altmann
- Neurological Intensive Care Unit, Department of Neurology, Medical University of Innsbruck, Anichstrasse 35, 6020, Innsbruck, Austria
| | - Lauma Putnina
- Neurological Intensive Care Unit, Department of Neurology, Medical University of Innsbruck, Anichstrasse 35, 6020, Innsbruck, Austria
| | - Bogdan-Andrei Ianosi
- Neurological Intensive Care Unit, Department of Neurology, Medical University of Innsbruck, Anichstrasse 35, 6020, Innsbruck, Austria
| | - Alois J Schiefecker
- Neurological Intensive Care Unit, Department of Neurology, Medical University of Innsbruck, Anichstrasse 35, 6020, Innsbruck, Austria
| | - Ronny Beer
- Neurological Intensive Care Unit, Department of Neurology, Medical University of Innsbruck, Anichstrasse 35, 6020, Innsbruck, Austria
| | - Bettina Pfausler
- Neurological Intensive Care Unit, Department of Neurology, Medical University of Innsbruck, Anichstrasse 35, 6020, Innsbruck, Austria
| | - Raimund Helbok
- Neurological Intensive Care Unit, Department of Neurology, Medical University of Innsbruck, Anichstrasse 35, 6020, Innsbruck, Austria
- Department of Neurology, Kepler University Hospital, Johannes Kepler University Linz, Linz, Austria
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43
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Shah VA, Gonzalez LF, Suarez JI. Therapies for Delayed Cerebral Ischemia in Aneurysmal Subarachnoid Hemorrhage. Neurocrit Care 2023; 39:36-50. [PMID: 37231236 DOI: 10.1007/s12028-023-01747-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2023] [Accepted: 05/03/2023] [Indexed: 05/27/2023]
Abstract
Delayed cerebral ischemia (DCI) is one of the most important complications of subarachnoid hemorrhage. Despite lack of prospective evidence, medical rescue interventions for DCI include hemodynamic augmentation using vasopressors or inotropes, with limited guidance on specific blood pressure and hemodynamic parameters. For DCI refractory to medical interventions, endovascular rescue therapies (ERTs), including intraarterial (IA) vasodilators and percutaneous transluminal balloon angioplasty, are the cornerstone of management. Although there are no randomized controlled trials assessing the efficacy of ERTs for DCI and their impact on subarachnoid hemorrhage outcomes, survey studies suggest that they are widely used in clinical practice with significant variability worldwide. IA vasodilators are first line ERTs, with better safety profiles and access to distal vasculature. The most commonly used IA vasodilators include calcium channel blockers, with milrinone gaining popularity in more recent publications. Balloon angioplasty achieves better vasodilation compared with IA vasodilators but is associated with higher risk of life-threatening vascular complications and is reserved for proximal severe refractory vasospasm. The existing literature on DCI rescue therapies is limited by small sample sizes, significant variability in patient populations, lack of standardized methodology, variable definitions of DCI, poorly reported outcomes, lack of long-term functional, cognitive, and patient-centered outcomes, and lack of control groups. Therefore, our current ability to interpret clinical results and make reliable recommendations regarding the use of rescue therapies is limited. This review summarizes existing literature on rescue therapies for DCI, provides practical guidance, and identifies future research needs.
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Affiliation(s)
- Vishank A Shah
- Division of Neurosciences Critical Care, Departments of Anesthesiology and Critical Care Medicine, Neurology, and Neurosurgery, The Johns Hopkins University School of Medicine, 1800 Orleans Street, Zayed 3014A, Baltimore, MD, USA.
| | - L Fernando Gonzalez
- Division of Cerebrovascular and Endovascular Neurosurgery, Department of Neurosurgery, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Jose I Suarez
- Division of Neurosciences Critical Care, Departments of Anesthesiology and Critical Care Medicine, Neurology, and Neurosurgery, The Johns Hopkins University School of Medicine, 1800 Orleans Street, Zayed 3014A, Baltimore, MD, USA
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Lynch DG, Shah KA, Powell K, Wadolowski S, Tambo W, Strohl JJ, Unadkat P, Eidelberg D, Huerta PT, Li C. Neurobehavioral Impairments Predict Specific Cerebral Damage in Rat Model of Subarachnoid Hemorrhage. Transl Stroke Res 2023:10.1007/s12975-023-01180-2. [PMID: 37493939 DOI: 10.1007/s12975-023-01180-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Revised: 06/09/2023] [Accepted: 07/18/2023] [Indexed: 07/27/2023]
Abstract
Subarachnoid hemorrhage (SAH) is a severe form of stroke that can cause unpredictable and diffuse cerebral damage, which is difficult to detect until it becomes irreversible. Therefore, there is a need for a reliable method to identify dysfunctional regions and initiate treatment before permanent damage occurs. Neurobehavioral assessments have been suggested as a possible tool to detect and approximately localize dysfunctional cerebral regions. In this study, we hypothesized that a neurobehavioral assessment battery could be a sensitive and specific method for detecting damage in discrete cerebral regions following SAH. To test this hypothesis, a behavioral battery was employed at multiple time points after SAH induced via an endovascular perforation, and brain damage was confirmed via postmortem histopathological analysis. Our results demonstrate that impairment of sensorimotor function accurately predict damage in the cerebral cortex (AUC 0.905; sensitivity 81.8%; specificity 90.9%) and striatum (AUC 0.913; sensitivity 90.1%; specificity 100%), while impaired novel object recognition is a more accurate indicator of damage to the hippocampus (AUC 0.902; sensitivity 74.1%; specificity 83.3%) than impaired reference memory (AUC 0.746; sensitivity 72.2%; specificity 58.0%). Tests for anxiety-like and depression-like behaviors predict damage to the amygdala (AUC 0.900; sensitivity 77.0%; specificity 81.7%) and thalamus (AUC 0.963; sensitivity 86.3%; specificity 87.8%), respectively. This study suggests that recurring behavioral testing can accurately predict damage in specific brain regions, which could be developed into a clinical battery for early detection of SAH damage in humans, potentially improving early treatment and outcomes.
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Affiliation(s)
- Daniel G Lynch
- Translational Brain Research Laboratory, The Feinstein Institutes for Medical Research, Manhasset, NY, USA
- Zucker School of Medicine at Hofstra/Northwell, Hempstead, NY, USA
| | - Kevin A Shah
- Translational Brain Research Laboratory, The Feinstein Institutes for Medical Research, Manhasset, NY, USA
- Department of Neurosurgery, North Shore University Hospital, Manhasset, NY, USA
| | - Keren Powell
- Translational Brain Research Laboratory, The Feinstein Institutes for Medical Research, Manhasset, NY, USA
| | - Steven Wadolowski
- Translational Brain Research Laboratory, The Feinstein Institutes for Medical Research, Manhasset, NY, USA
| | - Willians Tambo
- Translational Brain Research Laboratory, The Feinstein Institutes for Medical Research, Manhasset, NY, USA
- Elmezzi Graduate School of Molecular Medicine, Manhasset, NY, USA
| | - Joshua J Strohl
- Zucker School of Medicine at Hofstra/Northwell, Hempstead, NY, USA
- Laboratory of Immune and Neural Networks, The Feinstein Institutes for Medical Research, Manhasset, NY, USA
| | - Prashin Unadkat
- Department of Neurosurgery, North Shore University Hospital, Manhasset, NY, USA
- Elmezzi Graduate School of Molecular Medicine, Manhasset, NY, USA
- Center for Neurosciences, Lab for Behavioral and Molecular Neuroimaging, The Feinstein Institutes for Medical Research, Manhasset, NY, USA
| | - David Eidelberg
- Zucker School of Medicine at Hofstra/Northwell, Hempstead, NY, USA
- Elmezzi Graduate School of Molecular Medicine, Manhasset, NY, USA
- Center for Neurosciences, Lab for Behavioral and Molecular Neuroimaging, The Feinstein Institutes for Medical Research, Manhasset, NY, USA
| | - Patricio T Huerta
- Zucker School of Medicine at Hofstra/Northwell, Hempstead, NY, USA
- Elmezzi Graduate School of Molecular Medicine, Manhasset, NY, USA
- Laboratory of Immune and Neural Networks, The Feinstein Institutes for Medical Research, Manhasset, NY, USA
| | - Chunyan Li
- Translational Brain Research Laboratory, The Feinstein Institutes for Medical Research, Manhasset, NY, USA.
- Zucker School of Medicine at Hofstra/Northwell, Hempstead, NY, USA.
- Department of Neurosurgery, North Shore University Hospital, Manhasset, NY, USA.
- Elmezzi Graduate School of Molecular Medicine, Manhasset, NY, USA.
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Kastenholz N, Megjhani M, Conzen-Dilger C, Albanna W, Veldeman M, Nametz D, Kwon SB, Schulze-Steinen H, Ridwan H, Clusmann H, Schubert GA, Park S, Weiss M. The oxygen reactivity index indicates disturbed local perfusion regulation after aneurysmal subarachnoid hemorrhage: an observational cohort study. Crit Care 2023; 27:235. [PMID: 37312192 PMCID: PMC10265851 DOI: 10.1186/s13054-023-04452-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Accepted: 04/19/2023] [Indexed: 06/15/2023] Open
Abstract
BACKGROUND Cerebral autoregulation (CA) can be impaired in patients with delayed cerebral ischemia (DCI) after aneurysmal subarachnoid hemorrhage (aSAH). The Pressure Reactivity Index (PRx, correlation of blood pressure and intracranial pressure) and Oxygen Reactivity Index (ORx, correlation of cerebral perfusion pressure and brain tissue oxygenation, PbtO2) are both believed to estimate CA. We hypothesized that CA could be poorer in hypoperfused territories during DCI and that ORx and PRx may not be equally effective in detecting such local variances. METHODS ORx and PRx were compared daily in 76 patients with aSAH with or without DCI until the time of DCI diagnosis. The ICP/PbtO2-probes of DCI patients were retrospectively stratified by being in or outside areas of hypoperfusion via CT perfusion image, resulting in three groups: DCI + /probe + (DCI patients, probe located inside the hypoperfused area), DCI + /probe- (probe outside the hypoperfused area), DCI- (no DCI). RESULTS PRx and ORx were not correlated (r = - 0.01, p = 0.56). Mean ORx but not PRx was highest when the probe was located in a hypoperfused area (ORx DCI + /probe + 0.28 ± 0.13 vs. DCI + /probe- 0.18 ± 0.15, p < 0.05; PRx DCI + /probe + 0.12 ± 0.17 vs. DCI + /probe- 0.06 ± 0.20, p = 0.35). PRx detected poorer autoregulation during the early phase with relatively higher ICP (days 1-3 after hemorrhage) but did not differentiate the three groups on the following days when ICP was lower on average. ORx was higher in the DCI + /probe + group than in the other two groups from day 3 onward. ORx and PRx did not differ between patients with DCI, whose probe was located elsewhere, and patients without DCI (ORx DCI + /probe- 0.18 ± 0.15 vs. DCI- 0.20 ± 0.14; p = 0.50; PRx DCI + /probe- 0.06 ± 0.20 vs. DCI- 0.08 ± 0.17, p = 0.35). CONCLUSIONS PRx and ORx are not interchangeable measures of autoregulation, as they likely measure different homeostatic mechanisms. PRx represents the classical cerebrovascular reactivity and might be better suited to detect disturbed autoregulation during phases with moderately elevated ICP. Autoregulation may be poorer in territories affected by DCI. These local perfusion disturbances leading up to DCI may be more readily detected by ORx than PRx. Further research should investigate their robustness to detect DCI and to serve as a basis for autoregulation-targeted treatment after aSAH.
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Affiliation(s)
- Nick Kastenholz
- Department of Neurosurgery, RWTH Aachen University, Aachen, Germany
- Program for Hospital and Intensive Care Informatics, Department of Neurology, Columbia University Vagelos College of Physicians and Surgeons, New York City, NY, USA
- NewYork-Presbyterian Hospital, Columbia University Irving Medical Center, New York City, NY, USA
| | - Murad Megjhani
- Program for Hospital and Intensive Care Informatics, Department of Neurology, Columbia University Vagelos College of Physicians and Surgeons, New York City, NY, USA
- NewYork-Presbyterian Hospital, Columbia University Irving Medical Center, New York City, NY, USA
| | | | - Walid Albanna
- Department of Neurosurgery, RWTH Aachen University, Aachen, Germany
| | - Michael Veldeman
- Department of Neurosurgery, RWTH Aachen University, Aachen, Germany
| | - Daniel Nametz
- Program for Hospital and Intensive Care Informatics, Department of Neurology, Columbia University Vagelos College of Physicians and Surgeons, New York City, NY, USA
- NewYork-Presbyterian Hospital, Columbia University Irving Medical Center, New York City, NY, USA
| | - Soon Bin Kwon
- Program for Hospital and Intensive Care Informatics, Department of Neurology, Columbia University Vagelos College of Physicians and Surgeons, New York City, NY, USA
- NewYork-Presbyterian Hospital, Columbia University Irving Medical Center, New York City, NY, USA
| | - Henna Schulze-Steinen
- Department of Intensive Care Medicine and Perioperative Care, RWTH Aachen University, Aachen, Germany
| | - Hani Ridwan
- Department of Diagnostic and Interventional Neuroradiology, RWTH Aachen University, Aachen, Germany
| | - Hans Clusmann
- Department of Neurosurgery, RWTH Aachen University, Aachen, Germany
| | - Gerrit Alexander Schubert
- Department of Neurosurgery, RWTH Aachen University, Aachen, Germany
- Department of Neurosurgery, Cantonal Hospital Aarau, Tellstrasse 25, 5001, Aarau, Switzerland
| | - Soojin Park
- Program for Hospital and Intensive Care Informatics, Department of Neurology, Columbia University Vagelos College of Physicians and Surgeons, New York City, NY, USA
- NewYork-Presbyterian Hospital, Columbia University Irving Medical Center, New York City, NY, USA
- Department of Biomedical Informatics, Columbia University, New York City, NY, USA
| | - Miriam Weiss
- Department of Neurosurgery, RWTH Aachen University, Aachen, Germany.
- Department of Neurosurgery, Cantonal Hospital Aarau, Tellstrasse 25, 5001, Aarau, Switzerland.
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Savarraj JPJ, McBride DW, Park E, Hinds S, Paz A, Gusdon A, Xuefang R, Pan S, Ahnstedt H, Colpo GD, Kim E, Zhao Z, McCullough L, Choi HA. Leucine-Rich Alpha-2-Glycoprotein 1 is a Systemic Biomarker of Early Brain Injury and Delayed Cerebral Ischemia After Subarachnoid Hemorrhage. Neurocrit Care 2023; 38:771-780. [PMID: 36577901 PMCID: PMC10247387 DOI: 10.1007/s12028-022-01652-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Accepted: 11/11/2022] [Indexed: 12/29/2022]
Abstract
BACKGROUND After subarachnoid hemorrhage (SAH), early brain injury (EBI) and delayed cerebral ischemia (DCI) lead to poor outcomes. Discovery of biomarkers indicative of disease severity and predictive of DCI is important. We tested whether leucine-rich alpha-2-glycoprotein 1 (LRG1) is a marker of severity, DCI, and functional outcomes after SAH. METHODS We performed untargeted proteomics using mass spectrometry in plasma samples collected at < 48 h of SAH in two independent discovery cohorts (n = 27 and n = 45) and identified LRG1 as a biomarker for DCI. To validate our findings, we used enzyme-linked immunosorbent assay and confirmed this finding in an internal validation cohort of plasma from 72 study participants with SAH (22 DCI and 50 non-DCI). Further, we investigated the relationship between LRG1 and markers of EBI, DCI, and poor functional outcomes (quantified by the modified Rankin Scale). We also measured cerebrospinal fluid (CSF) levels of LRG1 and investigated its relationship to EBI, DCI, and clinical outcomes. RESULTS Untargeted proteomics revealed higher plasma LRG1 levels across EBI severity and DCI in both discovery cohorts. In the validation cohort, the levels of LRG1 were higher in the DCI group compared with the non-DCI group (mean (SD): 95 [44] vs. 72 [38] pg/ml, p < 0.05, Student's t-test) and in study participants who proceeded to have poor functional outcomes (84 [39.3] vs. 72 [43.2] pg/ml, p < 0.05). Elevated plasma LRG1 levels were also associated with markers of EBI. However, CSF levels of LRG1 were not associated with EBI severity or the occurrence of DCI. CONCLUSIONS Plasma LRG1 is a biomarker for EBI, DCI, and functional outcomes after SAH. Further studies to elucidate the role of LRG1 in the pathophysiology of SAH are needed.
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Affiliation(s)
- Jude P J Savarraj
- Department of Neurosurgery, McGovern Medical School, The University of Texas Health Science Center at Houston, 6431 Fannin St, Houston, TX, 77030, USA
| | - Devin W McBride
- Department of Neurosurgery, McGovern Medical School, The University of Texas Health Science Center at Houston, 6431 Fannin St, Houston, TX, 77030, USA
| | - Eunsu Park
- Department of Neurosurgery, McGovern Medical School, The University of Texas Health Science Center at Houston, 6431 Fannin St, Houston, TX, 77030, USA
| | - Sarah Hinds
- Department of Neurosurgery, McGovern Medical School, The University of Texas Health Science Center at Houston, 6431 Fannin St, Houston, TX, 77030, USA
| | - Atzhiry Paz
- Department of Neurosurgery, McGovern Medical School, The University of Texas Health Science Center at Houston, 6431 Fannin St, Houston, TX, 77030, USA
| | - Aaron Gusdon
- Department of Neurosurgery, McGovern Medical School, The University of Texas Health Science Center at Houston, 6431 Fannin St, Houston, TX, 77030, USA
| | - Ren Xuefang
- Department of Neurosurgery, McGovern Medical School, The University of Texas Health Science Center at Houston, 6431 Fannin St, Houston, TX, 77030, USA
| | - Sheng Pan
- The Brown Foundation Institute of Molecular Medicine, The University of Texas Health Science Center at Houston, Houston, TX, USA
| | - Hilda Ahnstedt
- Department of Neurology, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX, USA
| | - Gabriela Delevati Colpo
- Department of Neurology, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX, USA
| | - Eunhee Kim
- Department of Neurosurgery, McGovern Medical School, The University of Texas Health Science Center at Houston, 6431 Fannin St, Houston, TX, 77030, USA
| | - Zhongming Zhao
- Center for Precision Health, School of Biomedical Informatics and Human Genetics Center, School of Public Health, The University of Texas Health Science Center at Houston, Houston, TX, USA
| | - Louise McCullough
- Department of Neurology, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX, USA
| | - Huimahn Alex Choi
- Department of Neurosurgery, McGovern Medical School, The University of Texas Health Science Center at Houston, 6431 Fannin St, Houston, TX, 77030, USA.
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Taghavi RM, Zhu G, Wintermark M, Kuraitis GM, Sussman ES, Pulli B, Biniam B, Ostmeier S, Steinberg GK, Heit JJ. Prediction of delayed cerebral ischemia after cerebral aneurysm rupture using explainable machine learning approach. Interv Neuroradiol 2023:15910199231170411. [PMID: 37070145 DOI: 10.1177/15910199231170411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/19/2023] Open
Abstract
BACKGROUND Aneurysmal subarachnoid hemorrhage results in significant mortality and disability, which is worsened by the development of delayed cerebral ischemia. Tests to identify patients with delayed cerebral ischemia prospectively are of high interest. OBJECTIVE We created a machine learning system based on clinical variables to predict delayed cerebral ischemia in aneurysmal subarachnoid hemorrhage patients. We also determined which variables have the most impact on delayed cerebral ischemia prediction using SHapley Additive exPlanations method. METHODS 500 aneurysmal subarachnoid hemorrhage patients were identified and 369 met inclusion criteria: 70 patients developed delayed cerebral ischemia (delayed cerebral ischemia+) and 299 did not (delayed cerebral ischemia-). The algorithm was trained based upon age, sex, hypertension (HTN), diabetes, hyperlipidemia, congestive heart failure, coronary artery disease, smoking history, family history of aneurysm, Fisher Grade, Hunt and Hess score, and external ventricular drain placement. Random Forest was selected for this project, and prediction outcome of the algorithm was delayed cerebral ischemia+. SHapley Additive exPlanations was used to visualize each feature's contribution to the model prediction. RESULTS The Random Forest machine learning algorithm predicted delayed cerebral ischemia: accuracy 80.65% (95% CI: 72.62-88.68), area under the curve 0.780 (95% CI: 0.696-0.864), sensitivity 12.5% (95% CI: -3.7 to 28.7), specificity 94.81% (95% CI: 89.85-99.77), PPV 33.3% (95% CI: -4.39 to 71.05), and NPV 84.1% (95% CI: 76.38-91.82). SHapley Additive exPlanations value demonstrated Age, external ventricular drain placement, Fisher Grade, and Hunt and Hess score, and HTN had the highest predictive values for delayed cerebral ischemia. Lower age, absence of hypertension, higher Hunt and Hess score, higher Fisher Grade, and external ventricular drain placement increased risk of delayed cerebral ischemia. CONCLUSION Machine learning models based upon clinical variables predict delayed cerebral ischemia with high specificity and good accuracy.
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Affiliation(s)
- Reza M Taghavi
- Department of Medicine, University of California at Davis Medical School, Sacramento, CA, USA
| | - Guangming Zhu
- Department of Radiology, Stanford University School of Medicine, Stanford, CA, USA
| | - Max Wintermark
- Department of Neuroradiology, MD Anderson, Houston, TX, USA
| | - Gabriella M Kuraitis
- Department of Radiology, Stanford University School of Medicine, Stanford, CA, USA
| | - Eric S Sussman
- Department of Neurosurgery, University of Connecticut, Hartford, CT, USA
| | - Benjamin Pulli
- Department of Radiology, Stanford University School of Medicine, Stanford, CA, USA
| | - Brook Biniam
- Department of Medicine, University of Ottawa Medical School, Ottawa, Canada
| | - Sophie Ostmeier
- Department of Radiology, Stanford University School of Medicine, Stanford, CA, USA
| | - Gary K Steinberg
- Department of Neurosurgery, Stanford University School of Medicine, Stanford, CA, USA
| | - Jeremy J Heit
- Department of Radiology, Stanford University School of Medicine, Stanford, CA, USA
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Nakajima H, Kawakita F, Oinaka H, Suzuki Y, Nampei M, Kitano Y, Nishikawa H, Fujimoto M, Miura Y, Yasuda R, Toma N, Suzuki H. Plasma SPARC Elevation in Delayed Cerebral Ischemia After Aneurysmal Subarachnoid Hemorrhage. Neurotherapeutics 2023; 20:779-788. [PMID: 36781745 PMCID: PMC10275842 DOI: 10.1007/s13311-023-01351-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/30/2023] [Indexed: 02/15/2023] Open
Abstract
Matricellular proteins have been implicated in pathologies after subarachnoid hemorrhage (SAH). To find a new therapeutic molecular target, the present study aimed to clarify the relationships between serially measured plasma levels of a matricellular protein, secreted protein acidic and rich in cysteine (SPARC), and delayed cerebral ischemia (DCI) in 117 consecutive aneurysmal SAH patients with admission World Federation of Neurological Surgeons (WFNS) grades I-III. DCI developed in 25 patients with higher incidences of past history of hypertension and dyslipidemia, preoperative WFNS grade III, modified Fisher grade 4, spinal drainage, and angiographic vasospasm. Plasma SPARC levels were increased after SAH, and significantly higher in patients with than without DCI at days 7-9, and in patients with VASOGRADE-Yellow compared with VASOGRADE-Green at days 1-3 and 7-9. However, there were no relationships between plasma SPARC levels and angiographic vasospasm. Receiver-operating characteristic curves differentiating DCI from no DCI determined the cut-off value of plasma SPARC ≥ 82.1 ng/ml at days 7 - 9 (sensitivity, 0.800; specificity, 0.533; and area under the curve, 0.708), which was found to be an independent determinant of DCI development in multivariate analyses. This is the first study to show that SPARC is upregulated in peripheral blood after SAH, and that SPARC may be involved in the development of DCI without angiographic vasospasm in a clinical setting.
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Affiliation(s)
- Hideki Nakajima
- Department of Neurosurgery, Mie University Graduate School of Medicine, Tsu, Japan
| | - Fumihiro Kawakita
- Department of Neurosurgery, Mie University Graduate School of Medicine, Tsu, Japan
| | - Hiroki Oinaka
- Department of Neurosurgery, Mie University Graduate School of Medicine, Tsu, Japan
| | - Yume Suzuki
- Department of Neurosurgery, Mie University Graduate School of Medicine, Tsu, Japan
| | - Mai Nampei
- Department of Neurosurgery, Mie University Graduate School of Medicine, Tsu, Japan
| | - Yotaro Kitano
- Department of Neurosurgery, Mie University Graduate School of Medicine, Tsu, Japan
| | - Hirofumi Nishikawa
- Department of Neurosurgery, Mie University Graduate School of Medicine, Tsu, Japan
| | - Masashi Fujimoto
- Department of Neurosurgery, Mie University Graduate School of Medicine, Tsu, Japan
| | - Yoichi Miura
- Department of Neurosurgery, Mie University Graduate School of Medicine, Tsu, Japan
| | - Ryuta Yasuda
- Department of Neurosurgery, Mie University Graduate School of Medicine, Tsu, Japan
| | - Naoki Toma
- Department of Neurosurgery, Mie University Graduate School of Medicine, Tsu, Japan
| | - Hidenori Suzuki
- Department of Neurosurgery, Mie University Graduate School of Medicine, Tsu, Japan.
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Palmisciano P, Hoz SS, Johnson MD, Forbes JA, Prestigiacomo CJ, Zuccarello M, Andaluz N. External Validation of an Extreme Gradient Boosting Model for Prediction of Delayed Cerebral Ischemia after Aneurysmal Subarachnoid Hemorrhage. World Neurosurg 2023:S1878-8750(23)00331-5. [PMID: 36914029 DOI: 10.1016/j.wneu.2023.03.036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Revised: 03/07/2023] [Accepted: 03/08/2023] [Indexed: 03/13/2023]
Abstract
BACKGROUND Delayed cerebral ischemia (DCI) may significantly worsen the functional status of patients with aneurysmal subarachnoid hemorrhage (aSAH). Several authors have designed predictive models for early identification of patients at risk of post-aSAH DCI. In this study, we externally validate an extreme gradient boosting (EGB) forecasting model for post-aSAH DCI prediction. METHODS A 9-year institutional retrospective review of patients with aSAH was performed. Patients were included if they underwent surgical or endovascular treatment and had available follow-up data. DCI was diagnosed as new onset neurological deficits at 4-12 days after aneurysm rupture, defined as worsening GCS for ≥2 points, and new ischemic infarcts at imaging. RESULTS 267 patients with aSAH were collected. At admission, median Hunt-Hess score was 2 (range, 1-5), median Fisher score 3 (range, 1-4), and median modified Fisher score 3 (range, 1-4). 145 patients underwent EVD placement for hydrocephalus (54.3%). The ruptured aneurysms were treated with clipping (64%), coiling (34.8%), and stent-assisted coiling (1.1%). 58 patients (21.7%) were diagnosed with clinical DCI and 82 (30.7%) with asymptomatic imaging vasospasm. The EGB classifier correctly predicted 19 cases of DCI (7.1%) and 154 cases of no-DCI (57.7%), achieving sensitivity of 32.76% and specificity of 73.68%. The calculated F1-score and accuracy were 0.288 and 64.8%, respectively. CONCLUSION We validated the EGB model has a potential assistant tool to predict post-aSAH DCI in clinical practice, finding moderate-high specificity but low sensitivity. Future research should investigate the underlying pathophysiology of DCI to allow the development of high-performing forecasting models.
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Affiliation(s)
- Paolo Palmisciano
- Department of Neurosurgery, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Samer S Hoz
- Department of Neurosurgery, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Mark D Johnson
- Department of Neurosurgery, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Jonathan A Forbes
- Department of Neurosurgery, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Charles J Prestigiacomo
- Department of Neurosurgery, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Mario Zuccarello
- Department of Neurosurgery, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Norberto Andaluz
- Department of Neurosurgery, University of Cincinnati College of Medicine, Cincinnati, OH, USA.
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Ozono I, Ikawa F, Hidaka T, Matsuda S, Oku S, Horie N, Date I, Suzuki M, Kobata H, Murayama Y, Sato A, Kato Y, Sano H. Different Risk Factors Between Cerebral Infarction and Symptomatic Cerebral Vasospasm in Patients with Aneurysmal Subarachnoid Hemorrhage. World Neurosurg 2023; 173:e487-e497. [PMID: 36841530 DOI: 10.1016/j.wneu.2023.02.085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Revised: 02/15/2023] [Accepted: 02/16/2023] [Indexed: 02/27/2023]
Abstract
OBJECTIVE Cerebral infarction due to cerebral vasospasm (IVS) after aneurysmal subarachnoid hemorrhage is associated with poor outcomes and symptomatic cerebral vasospasm (SVS). However, the difference of risk factors between SVS and IVS was unclear to date. In this study, we aimed to elucidate the risk factors for SVS and IVS based on the registry study. METHODS The modified World Federation of Neurosurgical Societies scale study comprises 1863 cases. Patients with aneurysmal subarachnoid hemorrhage who underwent radical treatment within 72 hours with a premorbid modified Rankin Scale score 0-2 as the inclusion criteria were retrospectively examined. The risk factors for SVS and IVS were analyzed using multivariable logistic regression analysis. RESULTS Among them, 1090 patients who met the inclusion criteria were divided into 2 groups according to SVS and IVS; 273 (25%) patients with SVS and 92 (8.4%) with IVS. Age was not a risk factor for SVS, but for IVS, and Fisher scale was a risk factor for SVS, but not for IVS. CONCLUSIONS The prevalence of IVS was not associated with the Fisher scale but with older age, suggesting possible factors other than SVS. Different associated factors between SVS and IVS were confirmed in this study.
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Affiliation(s)
- Iori Ozono
- Department of Neurosurgery, Shimane Prefectural Central Hospital, Izumo, Japan
| | - Fusao Ikawa
- Department of Neurosurgery, Shimane Prefectural Central Hospital, Izumo, Japan; Department of Neurosurgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan.
| | - Toshikazu Hidaka
- Department of Neurosurgery, Shimane Prefectural Central Hospital, Izumo, Japan
| | - Shingo Matsuda
- Department of Neurosurgery, Shimane Prefectural Central Hospital, Izumo, Japan
| | - Shinnichiro Oku
- Department of Neurosurgery, Shimane Prefectural Central Hospital, Izumo, Japan
| | - Nobutaka Horie
- Department of Neurosurgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Isao Date
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Michiyasu Suzuki
- Department of Advanced ThermoNeuroBiology, Yamaguchi University School of Medicine, Ube, Yamaguchi, Japan
| | - Hitoshi Kobata
- Department of Neurosurgery, Osaka Mishima Emergency Critical Care Center, Osaka, Japan
| | - Yuichi Murayama
- Department of Neurosurgery, The Jikei University School of Medicine, Tokyo, Japan
| | - Akira Sato
- Department of Rehabilitation, Gotanda Rehabilitation Hospital, Tokyo, Japan
| | - Yoko Kato
- Department of Neurosurgery, Fujita Health University Bantane Hospital, Nagoya, Japan
| | - Hirotoshi Sano
- Department of Neurosurgery, Shinkawabashi Hospital, Kawasaki, Japan
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