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Rathburn CM, Mun KT, Sharma LK, Saver JL. TOAST stroke subtype classification in clinical practice: implications for the Get With The Guidelines-Stroke nationwide registry. Front Neurol 2024; 15:1375547. [PMID: 38585349 PMCID: PMC10995393 DOI: 10.3389/fneur.2024.1375547] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Accepted: 03/11/2024] [Indexed: 04/09/2024] Open
Abstract
Introduction The TOAST (Trial of ORG 10172 in Acute Stroke Treatment) is the most commonly used ischemic stroke subtype classification system worldwide and a required field in the US National Get With The Guidelines-Stroke (GWTG-Stroke) registry. However, stroke diagnostics have advanced substantially since the TOAST classification was designed 30 years ago, potentially making it difficult to apply reliably. Methods In this prospective diagnostic accuracy study, we analyzed consecutive ischemic stroke patients admitted to a Comprehensive Stroke Center between July-October 2021. Clinical practice TOAST classification diagnoses rendered by the stroke team in the electronic medical record (EMR) at discharge were retrieved from GWTG-Stroke registry and compared to a reference ("gold") standard diagnosis derived from agreement between two expert raters after review of the EMR and patient imaging. Results Among 49 patients; age was 72.3 years (±12.1), 53% female, and presenting NIHSS median 3 (IQR 1-11). Work-up included: brain imaging in 100%; cardiac rhythm assessment in 100%; cervical/cerebral vessel imaging in 98%; TTE ± TEE in 92%; and TCD emboli evaluation in 51%. Reference standard diagnoses were: LAA-6%, SVD-14%, CE-39%, OTH-10%, UND-M (more than one cause)-20%, and UND-C (cryptogenic)-10%. GWTG-Stroke TOAST diagnoses agreed with reference standard diagnoses in 30/49 (61%). Among the 6 subtype diagnoses, specificity was generally high (84.8%-97.7%), but sensitivity suboptimal for LAA (33%), OTH (60%), UND-M (10%), and UND-C (20%). Positive predictive value was suboptimal for 5 of the 6 subtypes: LAA (13%), SVD (58%), OTH (75%), UND-M (50%), and UND-C (50%). Discussion Clinical practice TOAST classification subtype diagnoses entered into the GWTG-Stroke registry were accurate in only 61% of patients, a performance rate that, if similarly present at other centers, would hamper the ability of the national registry to provide dependable insights into subtype-related care. Development of an updated ischemic stroke subtype classification system, with algorithmic logic embedded in electronic medical records, is desirable.
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Affiliation(s)
| | | | | | - Jeffrey L. Saver
- Department of Neurology and Comprehensive Stroke Center, David Geffen School of Medicine at UCLA, Los Angeles, CA, United States
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Fu X, Zhang W, Li X, Liu H, Zhang Y, Gao Q. Critical closing pressure as a new hemodynamic marker of cerebral small vessel diseases burden. Front Neurol 2023; 14:1091075. [PMID: 37025201 PMCID: PMC10071665 DOI: 10.3389/fneur.2023.1091075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2022] [Accepted: 02/28/2023] [Indexed: 04/08/2023] Open
Abstract
Purpose To investigate cerebrovascular hemodynamics, including critical closing pressure (CrCP) and pulsatility index (PI), and their independent relationship with cerebral small vessel disease (CSVD) burden in patients with small-vessel occlusion (SVO). Methods We recruited consecutive patients with SVO of acute cerebral infarction who underwent brain magnetic resonance imaging (MRI), transcranial Doppler (TCD) and CrCP during admission. Cerebrovascular hemodynamics were assessed using TCD. We used the CSVD score to rate the total MRI burden of CSVD. Multiple regression analysis was used to determine parameters related to CSVD burden or CrCP. Results Ninety-seven of 120 patients (mean age, 64.51 ± 9.99 years; 76% male) completed the full evaluations in this study. We observed that CrCP was an independent determinant of CSVD burden in four models [odds ratio, 1.41; 95% confidence interval (CI), 1.17-1.71; P < 0.001] and correlated with CSVD burden [β (95% CI): 0.05 (0.04-0.06); P < 0.001]. In ROC analysis, CrCP was considered as a predictor of CSVD burden, and AUC was 86.2% (95% CI, 78.6-93.9%; P < 0.001). Multiple linear regression analysis showed that CrCP was significantly correlated with age [β (95% CI): 0.27 (0.06 to 0.47); P = 0.012], BMI [β (95% CI): 0.61 (0.00-1.22)] and systolic BP [β (95% CI): 0.16 (0.09-0.23); P < 0.001]. Conclusions CrCP representing cerebrovascular tension is an independent determinant and predictor of CSVD burden. It was significantly correlated with age, BMI and systolic blood pressure. These results provide new insights in the mechanism of CSVD development.
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Affiliation(s)
- Xian Fu
- Department of Neurology, Shenzhen Bao'an District Songgang People's Hospital, Shenzhen, China
- Xian Fu
| | - Weijin Zhang
- Department of Neurology, Institute of Neuroscience, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Xianliang Li
- Department of Neurology, Institute of Neuroscience, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Hongying Liu
- Department of Neurology, Institute of Neuroscience, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Yin Zhang
- Department of Neurology, Institute of Neuroscience, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Qingchun Gao
- Department of Neurology, Institute of Neuroscience, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
- *Correspondence: Qingchun Gao
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Nath M, Swarnkar P, Sharma R, Kumar A, Misra S, Kumar P. Association of modifiable risk factors with ischaemic stroke subtypes in Asian versus Caucasian populations: A systematic review and meta-analysis. Eur J Clin Invest 2022; 52:e13849. [PMID: 35906805 DOI: 10.1111/eci.13849] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Revised: 07/20/2022] [Accepted: 07/21/2022] [Indexed: 11/29/2022]
Abstract
BACKGROUND Ischaemic stroke (IS) is associated with various modifiable risk factors but the association of these risk factors based on TOAST classification, which characterises IS into five subtypes: large artery atherosclerosis (LAA), small vessel occlusion (SVO), cardioembolic disease (CE), other determined aetiology (ODE) and undetermined aetiology (UDE), is unknown. We aimed to summarise the published evidence for the association of modifiable risk factors with IS subtypes based on TOAST classification, specifically focussing on the Asian versus Caucasian population. METHOD A comprehensive search for all the published articles was performed in electronic databases including PubMed, EMBASE, Cochrane Library, and Google Scholar from 01st January 1950 to 10th April 2022 based on the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. Odds ratio (OR) with 95% confidence interval (CIs) along with random-effect models was used to calculate summary estimates. RESULTS In our meta-analysis, 32 studies with a total of 23,404 IS (14,364 in Asian vs. 9040 in Caucasian population), 7121 LAA (5219 in Asian vs. 1902 in Caucasian), 5532 SVO (3604 in Asian vs. 1928 in Caucasian), 3498 CE (1634 in Asian vs. 1864 in Caucasian), 1131 ODE (546 in Asian vs. 585 in Caucasian) and 4519 UDE (2076 in Asian vs. 2443 in Caucasian) were included. Our findings suggest a significant association between LAA and hypertension (OR = 1.07, 95% CI = 1.02-1.12), smoking (OR = 1.11, 95% CI = 1.04-1.17), dyslipidemia (OR = 1.13, 95% CI = 1.06-1.21), diabetes mellitus (OR = 1.18, 95% CI = 1.11-1.25) and atrial fibrillation (OR = 0.55, 95% CI = 0.40-0.75). Significantly strong association of hypertension, smoking, dyslipidemia, diabetes mellitus and atrial fibrillation was observed with SVO and CE stroke subtypes. Subgroup analysis based on ethnicity revealed a significant association for dyslipidemia, diabetes mellitus and atrial fibrillation in LAA for both Asians and Caucasians. Hypertension was significantly associated with SVO and ODE subtypes in both Asians and Caucasians; however, only Asian population showed significant association of hypertension in LAA and CE subtypes. The other risk factors did not show any statistical difference between the ethnic groups for the different stroke subtypes. The majority of the risk factors depicted positive association with LAA and SVO, negative with CE and neutral with ODE and UDE. CONCLUSION Our findings suggest strong association of smoking, dyslipidemia and diabetes mellitus with LAA and SVO subtypes in the Caucasian population. However, only diabetes mellitus showed significant association with both LAA and SVO subtypes in Asian population as well. Thus, a majority of the traditional modifiable risk factors had a positive association in LAA and SVO, while a negative protective association was observed in CE subtype, among both the Asian and the Caucasian subgroups.
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Affiliation(s)
- Manabesh Nath
- Department of Neurology, All India Institute of Medical Sciences, New Delhi, India
| | - Priyanka Swarnkar
- Department of Neurology, All India Institute of Medical Sciences, New Delhi, India
| | - Rakhee Sharma
- Department of Paediatrics, Army Hospital Research & Referral, New Delhi, India
| | - Amit Kumar
- Department of Paediatrics, Army Hospital Research & Referral, New Delhi, India
| | - Shubham Misra
- Department of Neurology, All India Institute of Medical Sciences, New Delhi, India
| | - Pradeep Kumar
- Department of Neurology, All India Institute of Medical Sciences, New Delhi, India
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Onset and Recurrence Characteristics of Chinese Patients with Noncardiogenic Ischemic Stroke in Chinese Medicine Hospital. Chin J Integr Med 2022; 28:492-500. [PMID: 35258782 DOI: 10.1007/s11655-022-3306-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/16/2021] [Indexed: 11/03/2022]
Abstract
OBJECTIVE To delineate the onset and recurrence characteristics of noncardiogenic ischemic stroke patients in China. METHODS A prospective, multicenter and registry study was carried out in 2,558 patients at 7 representative clinical sub-centers during November 3, 2016 to February 17, 2019. A questionnaire was used to collect information of patients regarding CM syndromes and constitutions and associated risk factors. Additionally, stroke recurrence was defined as a primary outcome indicator. RESULTS A total of 327 (12.78 %) patients endured recurrence events, 1,681 (65.72%) were men, and the average age was 63.33 ± 9.45 years. Totally 1,741 (68.06%) patients suffered first-ever ischemic stroke, 1,772 (69.27%) patients reported to have hypertension, and 1,640 (64.11%) of them reported dyslipidemia, 1,595 (62.35%) patients exhibited small-artery occlusion by The Trial of Org 10172 in Acute Stroke Treatment (TOAST) classification. Specifically, 1,271 (49.69%) patients were considered as qi-deficient constitution, and 1,227 (47.97%) patients were determined as stagnant blood constitution. There were 1,303 (50.94%) patients diagnosed as blood stasis syndrome, 1,280 (50.04%) patients exhibited phlegm and dampness syndrome and 1,012 (39.56%) patients demonstrated qi deficiency syndrome. And 1,033 (40.38%) patients declared intracranial artery stenosis, and 478 (18.69%) patients reported carotid artery stenosis. The plaque in 1,508 (41.36%) patients were of mixed. Particularly, 41.09% of them demonstrated abnormal levels of glycated hemoglobin levels. CONCLUSIONS Recurrence in minor and small-artery stroke cannot be ignored. Hypertension, dyslipidemia, abnormal HbA1c, intracranial artery stenosis and carotid plaque were more common in stroke patients. Particularly, phlegm-dampness and blood stasis syndromes, as well as qi deficiency and blood stasis constitutions, were still the main manifestations of stroke. (Trial registration at ClinicalTrials.gov No. NCT03174535).
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Adams HP. Clinical Scales to Assess Patients With Stroke. Stroke 2022. [DOI: 10.1016/b978-0-323-69424-7.00021-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Serum Galectin-3 as a Potential Predictive Biomarker Is Associated with Poststroke Cognitive Impairment. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2021; 2021:5827812. [PMID: 34900086 PMCID: PMC8660241 DOI: 10.1155/2021/5827812] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Accepted: 11/21/2021] [Indexed: 12/11/2022]
Abstract
Objective Galectin-3, an inflammatory mediator derived from microglia, participates in the pathophysiological process of various neurological diseases. However, the relationship between galectin-3 and poststroke cognitive impairment (PSCI) remains ambiguous. This research purposed to prove whether serum galectin-3 can predict PSCI. Methods In the end, an aggregate of 416 patients with the first acute ischemic stroke (AIS) were continuously and prospectively enrolled in the study. Upon admission, the baseline data of AIS patients were collected, and their serum galectin-3 levels were measured. Three months after the stroke, the Montreal Cognitive Scale (MoCA) was utilized to measure the cognitive function of AIS patients, and PSCI was defined as a MoCA score less than 26 points. Results Premised on the MoCA scores, patients were categorized into PSCI cohort and non-PSCI cohort. The two AIS patient cohorts did not exhibit any statistical difference in their baseline characteristics (p > 0.05). However, the serum galectin-3 level of AIS patients in the PSCI cohort was considerably elevated (p < 0.001). Pearson correlation analysis illustrated that serum galectin-3 level was negatively linked to MoCA score (r = −0.396, p < 0.05). The findings from the receiver-operating curve (ROC) illustrated that the sensitivity of serum galectin-3 as a possible biomarker for diagnosing PSCI was 66%, and the specificity was 94%. The cut-off value of serum galectin-3 to diagnose PSCI is 6.3 ng/mL (OR = 5.49, p < 0.001). Upon controlling for different variables, serum galectin-3 level remained to be an independent predictor of PSCI (p < 0.001). Conclusions Elevated serum galectin-3 levels are linked to a higher risk of PSCI. Serum galectin-3 could be a prospective biomarker for predicting PSCI.
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Joshi KC, Grewal P, Beer-Furlan A, Vargas A, Osteraas N, Dafer R, Chen M. Endovascular thrombectomy for acute ischemic stroke in patients with cancer: a propensity-matched analysis. J Neurointerv Surg 2021; 14:1161-1165. [PMID: 34880077 DOI: 10.1136/neurintsurg-2021-018211] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Accepted: 11/23/2021] [Indexed: 01/14/2023]
Abstract
BACKGROUND There is a paucity of data and a belief that endovascular thrombectomy (EVT) has low efficacy for acute ischemic stroke (AIS) in patients with cancer. We aimed to critically compare the clinical outcomes of EVT for AIS in patients with and without cancer. METHODS Records of all patients undergoing EVT for AIS between January 2015 and 2020 were screened for cancer at the time of EVT. Active cancer was defined as patients who were diagnosed with cancer and were undergoing or refused treatment for that cancer. Baseline modified Rankin Scale (mRS), age and sex were used in a 1:5 propensity score matching ratio. After matching we evaluated for any change in the National Institutes of Health Stroke Scale (NIHSS) from baseline to discharge, hemorrhagic transformation (HT), and 90-day mRS and mortality. RESULTS There were 19 patients with cancer and 95 matched controls. The mean±SD age was 70.89±11.16 years, and 17 (89.47%) were female. The baseline NIHSS was 22±7.5 and baseline mRS was 1 (IQR 1). There was no significant difference in change in baseline to discharge NIHSS, 90-day mRS or mortality; 90-day mRS 0-2 was 45.2% in the non-cancer group versus 46.7% in cancer group (p=0.54). HT was significantly higher in patients with cancer (57.89% vs 6.49%, p<0.001). CONCLUSIONS In propensity matched analysis of patients undergoing EVT for AIS with and without cancer, 90-day functional outcomes and mortality were similar. However, there was a significantly higher rate of HT in cancer patients.
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Affiliation(s)
- Krishna C Joshi
- Neurological Surgery, Rush University Medical Center, Chicago, Illinois, USA
| | - Parneet Grewal
- Neurology, Medical University of South Carolina, Charleston, South Carolina, USA
| | - André Beer-Furlan
- Neurological Surgery, Rush University Medical Center, Chicago, Illinois, USA
| | - Alejandro Vargas
- Neurological Sciences, Rush University Medical Center, Chicago, Illinois, USA
| | - Nicholas Osteraas
- Neurological Sciences, Rush University Medical Center, Chicago, Illinois, USA
| | - Rima Dafer
- Neurological Sciences, Rush University Medical Center, Chicago, Illinois, USA
| | - Michael Chen
- Neurological Sciences, Rush University Medical Center, Chicago, Illinois, USA
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Fang P, Wei Y, Wang J, Wang X, Yang H. Post-angiography Retention of the Contrast Agent in the Left Atrial Appendage Is Associated With Risk of Cardioembolic Stroke in Patients With Atrial Fibrillation: A Retrospective Study. Front Cardiovasc Med 2021; 8:753949. [PMID: 34778408 PMCID: PMC8581209 DOI: 10.3389/fcvm.2021.753949] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Accepted: 10/07/2021] [Indexed: 11/13/2022] Open
Abstract
Background: Atrial fibrillation (AF) represents an important risk factor for cardioembolic stroke, and most atrial thrombi originate from the left atrial appendage (LAA). Although the CHA2DS2-VASc score is widely used to estimate the risk of cardioembolic stroke in AF patients, yet greatly affected by many factors. This study was undertaken to determine the association between contrast agent retention in LAA after LAA angiography and risks of cardioembolic stroke in patients with AF. Methods: This is a retrospective study. The demographic and clinical data of AF patients undergone left atrial appendage occlusion (LAAO) with or without catheter radiofrequency ablation were retrospectively analyzed. The patients were classified into either stroke or non-stroke group by the history with cardioembolic stroke or transient ischemic attack (TIA). Results: Sixty-two consecutive patients undergone LAAO were finally included, in whom 31 AF patients had a history of cardioembolic stroke or TIA (one TIA), and significantly higher CHA2DS2-VASc score (4.2 ± 1.4 vs. 3.3 ± 1.3; P = 0.006) as well as incidence of contrast agent retention in LAA (n = 20 vs. n = 7; P = 0.001) compared to the patients in non-stroke group. In addition, the relative proportion of distinctive morphological types of LAA was significantly different between groups (P < 0.001). Multivariate logistic regression analysis showed that higher CHA2DS2-VASc scores (OR = 1.7, 95% CI: 1.0-3.0, P = 0.046) and LAA contrast agent retention (OR = 5.1, 95% CI: 1.1-23.9, P = 0.002) were associated with increased risks of cardioembolic stroke. The patients with Windsock type LAA (OR = 7.8, 95% CI: 1.1-57.2, P = 0.044) and Cauliflower LAA (OR = 20.2, 95% CI: 3.2-125.5, P = 0.001) were more prone to cardioembolic stroke compared to those with Chicken Wing type LAA. Conclusion: Left atrial appendage contrast agent retention after LAA angiography is associated with the risks of cardioembolic stroke in patients with AF, and cardioembolic stroke is more seen in AF patients with Windsock or Cauliflower type LAA.
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Affiliation(s)
- Ping Fang
- Department of Cardiology, The First Affiliated Hospital (Yijishan Hospital) of Wannan Medical College, Wuhu, China
| | - Youquan Wei
- Department of Cardiology, The First Affiliated Hospital (Yijishan Hospital) of Wannan Medical College, Wuhu, China
| | - Jinfeng Wang
- Department of Cardiology, The First Affiliated Hospital (Yijishan Hospital) of Wannan Medical College, Wuhu, China
| | - Xianghai Wang
- Department of Cardiology, The First Affiliated Hospital (Yijishan Hospital) of Wannan Medical College, Wuhu, China
| | - Hao Yang
- Department of Cardiology, The First Affiliated Hospital (Yijishan Hospital) of Wannan Medical College, Wuhu, China
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Migdady I, Russman A, Buletko AB. Atrial Fibrillation and Ischemic Stroke: A Clinical Review. Semin Neurol 2021; 41:348-364. [PMID: 33851396 DOI: 10.1055/s-0041-1726332] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Atrial fibrillation (AF) is an important risk factor for ischemic stroke resulting in a fivefold increased stroke risk and a twofold increased mortality. Our understanding of stroke mechanisms in AF has evolved since the concept of atrial cardiopathy was introduced as an underlying pathological change, with both AF and thromboembolism being common manifestations and outcomes. Despite the strong association with stroke, there is no evidence that screening for AF in asymptomatic patients improves clinical outcomes; however, there is strong evidence that patients with embolic stroke of undetermined source may require long-term monitoring to detect silent or paroxysmal AF. Stroke prevention in patients at risk, assessed by the CHA2DS2-VASc score, was traditionally achieved with warfarin; however, direct oral anticoagulants have solidified their role as safe and effective alternatives. Additionally, left atrial appendage exclusion has emerged as a viable option in patients intolerant of anticoagulation. When patients with AF have an acute stroke, the timing of initiation or resumption of anticoagulation for secondary stroke prevention has to be balanced against the risk of hemorrhagic conversion. Multiple randomized clinical trials are currently underway to determine the best timing for administration of anticoagulants following acute ischemic stroke.
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Affiliation(s)
- Ibrahim Migdady
- Division of Neurocritical Care, Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts
| | - Andrew Russman
- Cerebrovascular Center, Neurological Institute, Cleveland Clinic, Cleveland, Ohio
| | - Andrew B Buletko
- Cerebrovascular Center, Neurological Institute, Cleveland Clinic, Cleveland, Ohio
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Asymmetric cerebral edema presenting with severe neurologic impairment and seizures after cardiac and thoracic interventions. J Stroke Cerebrovasc Dis 2020; 29:105003. [PMID: 32689610 DOI: 10.1016/j.jstrokecerebrovasdis.2020.105003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Revised: 05/19/2020] [Accepted: 05/25/2020] [Indexed: 11/21/2022] Open
Abstract
INTRODUCTION A syndrome of focal neurologic deficits with characteristic imaging features, acute encephalopathy, and seizures after cardiac and thoracic interventions has been previously briefly reported in the literature. In a retrospective observational study, we aim to identify the prevalence and characteristics of this syndrome, in addition to discussing the possible underlying pathophysiology. METHODS In a retrospective study, we reviewed records of consecutive adult patients (≥18 years old) who underwent cardiac and thoracic procedures at a single institution between September 2014 to September 2019 and found to have evidence of focal cerebral edema following their procedure. We included and reported clinical course of patients who developed post-operative neurologic dysfunction and underwent magnetic resonance imaging (MRI) showing (1) asymmetric cerebral edema with (2) cortical diffusion restriction and (3) T2 cortical or subcortical hyperintensity and (4) no proximal vascular occlusion. RESULTS Three out of 107 patients (2.8%) met our inclusion criteria. These represented one male and two females with age at presentation of 63, 81 and 69, respectively. All patients developed severe neurologic impairment on the same day following their procedure (sternotomy with valve or bypass surgery in 2 patients; esophageal dilatation procedure in 1 patient). All patients underwent MRI of the brain and vessel imaging qualifying our inclusion criteria. Two patients improved neurologically prior to discharge, and one patient expired after family elected to withdraw care. CONCLUSION We present a series of cases with a rare syndrome after cardiac and thoracic interventions. Although the exact mechanism of this syndrome remains unclear, we believe it to be related to relative cerebral hyperperfusion and cerebral dysautoregulation following anesthesia and thoracic manipulation. Future studies should focus on understanding the true prevalence and pathophysiology of this syndrome.
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Al-Hussain F, Mohammad Y. Lacune is the stroke subtype linked to obstructive sleep apnea. Neurol Sci 2020; 41:3301-3306. [PMID: 32415639 DOI: 10.1007/s10072-020-04437-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Accepted: 04/17/2020] [Indexed: 11/25/2022]
Abstract
BACKGROUND Each stroke subtype is associated with specific risk factors, and stroke prevention depends solely on the control of the underlying risk factors for each stroke subtype. Obstructive sleep apnea has been established as a major risk factor for stroke and cardiovascular disease. However, information on the stroke subtype linked to obstructive sleep apnea is scarce. METHODS This was a single-center, observational case series study conducted on patients who were admitted with acute ischemic stroke to King Khalid University Hospital. The TOAST criteria were used to determine the stroke subtype in each of these patients. The Berlin questionnaire was utilized to assess the presence of obstructive sleep apnea. The proportion of each stroke subtype was then calculated and compared between the group with associated obstructive sleep apnea and the group without associated obstructive sleep apnea. RESULTS A total of 170 consecutive patients with acute ischemic stroke were admitted between January 2018 and September 2018. Eighty-seven (51%) patients were found to have obstructive sleep apnea. The proportion of small artery disease was significantly greater in the obstructive sleep apnea group (44% vs. 26%, P = 0.02). There was no difference in the distribution of the other stroke subtypes between the two groups. Univariate analysis revealed that small artery disease was associated with body mass index, hypertension, and obstructive sleep apnea. However, in a multivariate logistic analysis, only hypertension was found to be independently associated with small artery disease. CONCLUSION Small artery disease is the most common stroke subtype associated with obstructive sleep apnea. Clinicians must vigilantly assess the presence of obstructive sleep apnea in ischemic stroke patients, especially in patients whose stroke is attributed to small artery disease.
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Affiliation(s)
- Fawaz Al-Hussain
- Department of Internal Medicine; College of Medicine, King Saud University, P.O. Box 7805, Riyadh, 11472, Kingdom of Saudi Arabia.
| | - Yousef Mohammad
- Department of Internal Medicine; College of Medicine, King Saud University, P.O. Box 7805, Riyadh, 11472, Kingdom of Saudi Arabia
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Hu MZ, Zhou ZY, Zhou ZY, Lu H, Gao M, Liu LM, Song HQ, Lin AJ, Wu QM, Zhou HF, Li L, Wang X, Cai YF. Effect and Safety of Hydroxysafflor Yellow A for Injection in Patients with Acute Ischemic Stroke of Blood Stasis Syndrome: A Phase II, Multicenter, Randomized, Double-Blind, Multiple-Dose, Active-Controlled Clinical Trial. Chin J Integr Med 2020; 26:420-427. [PMID: 32361934 DOI: 10.1007/s11655-020-3094-7] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/01/2020] [Indexed: 12/26/2022]
Abstract
OBJECTIVE To assess the effect and safety of Hydroxysafflor Yellow A for Injection (HSYAI) in treating patients with acute ischemic stroke (AIS) and blood stasis syndrome (BSS). METHODS A multicenter, randomized, double-blind, multiple-dose, active-controlled phase II trial was conducted at 9 centers in China from July 2013 to September 2015. Patients with moderate or severe AIS and BSS were randomly assigned to low-, medium-, high-dose HSYAI groups (25, 50 and 70 mg/d HSYAI by intravenous infusion, respectively), and a control group (Dengzhan Xixin Injection (, DZXXI) 30 mL/d by intravenous infusion), for 14 consecutive days. The primary outcome was the Modified Rankin Scale (mRS) score ⩽1 at days 90 after treatment. The secondary outcomes included the National Institute of Health Stroke Scale (NIHSS) score ⩽1, Barthel Index (BI) score ⩾95, and BSS score reduced ⩾30% from baseline at days 14, 30, 60, and 90 after treatment. The safety outcomes included any adverse events during 90 days after treatment. RESULTS Of the 266 patients included in the effectiveness analysis, 66, 67, 65 and 68 cases were in the low-, medium-, and high-dose HSYAI and control groups, respectively. The proportions of patients in the medium- and high-dose HSYAI groups with mRS score ⩽1 at days 90 after treatment were significantly larger than the control group (P<0.05). The incidences of favorable outcomes of NIHSS and BI at days 90 after treatment as well as satisfactory improvement of BSS at days 30 and 60 after treatment in the medium- and high-dose HSYAI groups were all significantly higher than the control group (P<0.05). No significant difference was reported among the 4 groups in any specific adverse events (P>0.05). CONCLUSIONS HSYAI was safe and well-tolerated at all doses for treating AIS patients with BSS. The medium (50 mg/d) or high dose (75 mg/d) might be the optimal dose for a phase III trial. (Registration No. ChiCTR-2000029608).
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Affiliation(s)
- Ming-Zhe Hu
- The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, 510006, China
| | - Zi-Yi Zhou
- Department of Neurology, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, 510120, China
| | - Zhong-Yu Zhou
- Department of Acupuncture and Moxibustion, Hubei Provincial Hospital of Traditional Chinese Medicine, Wuhan, 430061, China
| | - Hui Lu
- Department of Neurology, Ruikang Hospital Affiliated to Guangxi University of Chinese Medicine, Nanning, 530011, China
| | - Min Gao
- Department of Neurology, Guangdong Second Traditional Chinese Medicine Hospital, Guangzhou, 510095, China
| | - Long-Min Liu
- Department of Traditional Chinese Medicine, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 200062, China
| | - Hai-Qing Song
- Department of Neurology, Xuanwu Hospital, Capital Medical University, Beijing, 100053, China
| | - An-Ji Lin
- Department of Traditional Chinese Medicine, Xiamen Hospital of Traditional Chinese Medicine, Xiamen, 361001, China
| | - Qing-Ming Wu
- Department of Acupuncture and Moxibustion, The Second Affiliated Hospital of Hunan University of Traditional Chinese Medicine, Changsha, 410005, China
| | - Hong-Fei Zhou
- Department of Neurology, The Affiliated Hospital of Liaoning University of Traditional Chinese Medicine, Shenyang, 110032, China
| | - Lei Li
- School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Xia Wang
- Youcare Pharmaceutical Group Dingcheng Branch, Beijing, 100176, China
| | - Ye-Feng Cai
- Department of Neurology, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, 510120, China.
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13
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Azeem MU, Nagy M, Miller MM, Ghasemi M, Mikati A, Silver B, Moonis M, Henninger N. Prevalence of a Multiple Territory Stroke Pattern After Intravenous Thrombolysis. J Stroke Cerebrovasc Dis 2020; 29:104700. [PMID: 32093987 DOI: 10.1016/j.jstrokecerebrovasdis.2020.104700] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2019] [Accepted: 01/25/2020] [Indexed: 01/19/2023] Open
Abstract
BACKGROUND It has been proposed that the presence of a multiple territory stroke pattern (MTSP) on brain imaging may aid identification of patients with covert atrial fibrillation (AF). However, it is uncertain whether this association holds true among patients treated with intravenous recombinant tissue plasminogen activator (rtPA) because clot fragmentation may affect MTSP prevalence. METHODS/DESIGN Retrospective analysis of 149 acute ischemic stroke patients treated with intravenous rtPA who underwent brain MRI. Presence of multiple acute infarctions on brain MRI that involved more than one vascular territory was considered to denote MTSP. Stroke etiology was categorized as nonembolic, cardioembolic (CES), and embolic stroke of undetermined source (ESUS). RESULTS In the entire cohort, subjects with CES and ESUS had significantly more often an MTSP than subjects with other determined stroke mechanism (P= .007). Although numerically relatively more patients had an MTSP as compared to a non-MTSP among subjects with CES (52% versus 33.9%) and ESUS (44% versus 34.7%), this difference did not reach significance after Bonferroni-adjustment for multiple comparisons (P> .05, each). There was no difference in the prevalence of an MTSP among subjects with known (n = 11/51; 21.6%) versus subsequently diagnosed (n = 1/3; 33.3%) AF (P= .54). CONCLUSIONS Our findings indicate that the known association of multiterritory infarct with AF and ESUS is maintained after thrombolysis. In light of its high specificity, MTSP represents a good marker for AF-related stroke etiology; nevertheless, overall sensitivity for AF was low highlighting that an absent MTSP does not rule out AF.
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Affiliation(s)
- Muhammad Umer Azeem
- Department of Neurology, University of Massachusetts Medical School, Worcester, Massachusetts
| | - Muhammad Nagy
- Department of Neurology, University of Massachusetts Medical School, Worcester, Massachusetts
| | - Malgorzata M Miller
- Department of Neurology, University of Massachusetts Medical School, Worcester, Massachusetts
| | - Mehdi Ghasemi
- Department of Neurology, University of Massachusetts Medical School, Worcester, Massachusetts
| | - Abdul Mikati
- Department of Neurology, University of Massachusetts Medical School, Worcester, Massachusetts
| | - Brian Silver
- Department of Neurology, University of Massachusetts Medical School, Worcester, Massachusetts
| | - Majaz Moonis
- Department of Neurology, University of Massachusetts Medical School, Worcester, Massachusetts
| | - Nils Henninger
- Department of Neurology, University of Massachusetts Medical School, Worcester, Massachusetts; Department of Psychiatry, University of Massachusetts Medical School, Worcester, Massachusetts.
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14
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Fu X, Chu C, Li X, Gao Q, Jia J. Cerebral arterial stiffness for predicting functional outcome in acute ischemic stroke. Hypertens Res 2019; 42:1916-1922. [DOI: 10.1038/s41440-019-0313-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2019] [Revised: 05/26/2019] [Accepted: 06/09/2019] [Indexed: 02/04/2023]
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15
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Etiological Classification of Cerebral Ischemic Stroke by the TOAST, SSS-TOAST, and ASCOD Systems. Neurologist 2019; 24:111-114. [DOI: 10.1097/nrl.0000000000000236] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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16
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Anisimova AV, Gunchenko AS, Ikonnikova AY, Galkin SS, Avdonina MA, Nasedkina TV. [A clinical and genetic analysis of risk factors for the development of acute and chronic cerebral ischemia]. Zh Nevrol Psikhiatr Im S S Korsakova 2019; 119:62-67. [PMID: 31184626 DOI: 10.17116/jnevro201911903262] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
To study the association between polymorphic markers in the ACE, SERPINE1, FGB, F5, F7, F12, GP1BA, GPIIIa, MTHFR, CYP11B2, PON1, PON2, NOS2, NOS2, HIFla, LTA, ALOX5AP genes and clinical characteristics of acute and chronic forms of circulatory disorders of the brain. MATERIAL AND METHODS: The analysis of polymorphic variants in ACE, FGB, F5, F7, F12, GP1BA, GPIIIa, SERPINE1, MTHFR, CYP11B2, PON1, PON2, NOS2, NOS3, PDE4D, HIF1a, LTA, ALOX5AP in 81 patients with chronic cerebral ischemia (CCI) and 69 patients with ischemic stroke (IS), and their interrelation with clinical manifestations of disease were investigated. RESULTS AND CONCLUSION: The association between the T/T genotype of the PDE4D SNP 83C>T polymorphism and a rapid progression of hypertensive disease (GB) was revealed (OR=6.22, CI=1.86-20.79, p=0.0036) in the group of patients with CCI. The association of the allele D and the DD genotype of the ACE (I>D, rs1799752) with cardioembolic stroke (OR=2.67, 95% CI=1.23-5.8, p=0.02 and OR=7.14, 95% CI=1.72-29.69, p=0.0057) was found. When comparing subgroups of patients with different degrees of stenosis of brachiocephalic arteries (BCA), the association of the allele C and the TC genotype of the GP1BA (rs2243093, -5T/C) with BCA occlusion and expressed hemodynamically significant stenosis (>75%) was revealed (OR=3.39, 95% CI=1.12-10.25, p=0.03 and OR=4.44, 95% CI=1.27-15.54, p=0.023, respectively). Thus, polymorphic markers in PDE4D, ACE, GP1BA in combination with certain clinical characteristics are risk factors for the progression of CCI and development of IS.
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Affiliation(s)
- A V Anisimova
- Pirogov Russian National Research Medical University, Moscow, Russia
| | - A S Gunchenko
- Pirogov Russian National Research Medical University, Moscow, Russia
| | - A Yu Ikonnikova
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, Russia
| | - S S Galkin
- Pirogov Russian National Research Medical University, Moscow, Russia
| | - M A Avdonina
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, Russia
| | - T V Nasedkina
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, Russia
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17
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Fu X, Li X, Xiong L, Li X, Huang R, Gao Q. Association of Cerebral Arterial Stiffness with Initial Severity in Acute Ischemic Stroke. J Atheroscler Thromb 2019; 26:1092-1101. [PMID: 31130556 PMCID: PMC6927806 DOI: 10.5551/jat.48785] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
Aim: To evaluate the association between cerebral arterial stiffness, measured using carotid–cerebral pulse wave velocity (ccPWV), and the initial severity estimated by the National Institutes of Health Stroke Scale (NIHSS) after acute ischemic stroke (AIS). Methods: We prospectively studied 402 consecutive patients with first-ever acute cerebral infarction who underwent brain multimodal magnetic resonance, ccPWV, echocardiography, and carotid ultrasonography during the admission period. Their stroke subtypes were classified using the Trial of Org 10172 in Acute Stroke Treatment classification. Severe initial stroke severity was defined as an NIHSS score > 6 on admission. Results: We observed that 168 (41.79%) patients had severe initial stroke severity. A multivariate logistic regression analysis revealed that ccPWV [as a continuous variable; odds ratios (OR) (95% confidence intervals (CI)): 1.36 (1.08–1.72); P = 0.010] and ccPWV > 6.87 m/s [OR (95% CI): 8.13 (3.06–21.58); P < 0.001], calculated from the receiver-operating characteristic curve, remained independent determinants of severe initial stroke severity in three models. Furthermore, we observed that ccPWV significantly correlated with the NIHSS score, and the value of ccPWV was most strongly correlated with the NIHSS score (r = 0.82, P < 0.001) in subjects with small vessel occlusion (SVO) among all stroke subtypes. Conclusions: Cerebral arterial stiffness was independently associated with initial severity in AIS patients, and may be more strongly correlated with the initial SVO severity than those of other subtypes.
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Affiliation(s)
- Xian Fu
- Institute of Neuroscience and Department of Neurology, the Second Affiliated Hospital of Guangzhou Medical University
| | - Xuelong Li
- Institute of Neuroscience and Department of Neurology, the Second Affiliated Hospital of Guangzhou Medical University
| | - Li Xiong
- Department of Medicine & Therapeutics, The Chinese University of Hong Kong
| | - Xianliang Li
- Institute of Neuroscience and Department of Neurology, the Second Affiliated Hospital of Guangzhou Medical University
| | - Ruxun Huang
- Department of Neurology, the First Affiliated Hospital, Sun Yat-Sen University
| | - Qingchun Gao
- Institute of Neuroscience and Department of Neurology, the Second Affiliated Hospital of Guangzhou Medical University
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18
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Karaca Y, Moonis M, Zhang YD, Gezgez C. Mobile cloud computing based stroke healthcare system. INTERNATIONAL JOURNAL OF INFORMATION MANAGEMENT 2019. [DOI: 10.1016/j.ijinfomgt.2018.09.012] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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19
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Jiang Y, Liu X, Du Y, Zhou S. rs1234313 and rs45454293 are risk factors of cerebral arterial thrombosis, large artery atherosclerosis, and carotid plaque in the Han Chinese population: a case-control study. BMC Neurol 2019; 19:31. [PMID: 30797237 PMCID: PMC6387510 DOI: 10.1186/s12883-019-1259-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2018] [Accepted: 02/15/2019] [Indexed: 02/02/2023] Open
Abstract
Background Ischemic stroke is a leading cause of mortality and morbidity worldwide. Stenosis or blockage of an artery from atherosclerosis can cause insufficient cerebral blood supply, which leads to ischemic stroke. It has been reported that the polymorphisms of TNFSF4 (tumor necrosis factor super family member 4) are associated with multiple autoimmune diseases. However, it is still unclear whether TNFSF4 gene polymorphisms are associated with ischemic stroke in the Han Chinese population. Here we analyzed the association between TNFSF4 single nucleotide polymorphisms (SNPs) and cerebral arterial thrombosis in the Han Chinese population. Method We consecutively recruited 481 patients with cerebral arterial thrombosis and 538 healthy controls. Neck ultrasonography and magnetic resonance imaging (MRI) were used to evaluate large artery atherosclerosis (LAA) and small vessel disease (SVD), as well as the thickness and calcification of carotid artery. DNA was purified from the peripheral blood samples. TNFSF4 SNPs, rs1234313 and rs45454293, were genotyped using PCR. Results rs1234313 SNP had a significant correlation with the LAA and SVD subtypes in allelic (G vs A), dominate (GG/GA vs AA) and genotypic (GA vs AA; GG vs AA) models, as well as with the calcification of carotid plaque in dominant (GG/GA vs AA, p = 0.022) and genotypic (GA vs AA, p = 0.01) models. rs45454293 SNP had a significant correlation with the LAA and SVD subtypes in allelic (G vs A) and genotypic models, as well as with the thick carotid plaque in allelic (G vs A, p = 0.01) model. Conclusion TNFSF4 SNPs, rs1234313 and rs45454293, are associated with the risk of specific subtypes of cerebral arterial thrombosis in the Han Chinese population.
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Affiliation(s)
- Yan Jiang
- Department of Neurology, Qilu Hospital of Shandong University and Brain Science Research Institute, Shandong University, 107 Wenhuaxi Road, Jinan, Shandong, 250012, People's Republic of China.,Department of Neurology, The First Affiliated Hospital of USTC, Anhui Provincial Hospital, Hefei, 230001, People's Republic of China
| | - Xiaomin Liu
- Department of Neurology, The First Affiliated Hospital of USTC, Anhui Provincial Hospital, Hefei, 230001, People's Republic of China
| | - Yifeng Du
- Department of Neurology, Shandong Provincial Hospital, Shandong University, Jinan, 250013, China
| | - Shengnian Zhou
- Department of Neurology, Qilu Hospital of Shandong University and Brain Science Research Institute, Shandong University, 107 Wenhuaxi Road, Jinan, Shandong, 250012, People's Republic of China.
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20
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Abdul-Rahim AH, Dickie DA, Selvarajah JR, Lees KR, Quinn TJ. Stroke aetiological classification reliability and effect on trial sample size: systematic review, meta-analysis and statistical modelling. Trials 2019; 20:107. [PMID: 30736833 PMCID: PMC6368715 DOI: 10.1186/s13063-019-3222-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2018] [Accepted: 01/25/2019] [Indexed: 12/15/2022] Open
Abstract
Background Inter-observer variability in stroke aetiological classification may have an effect on trial power and estimation of treatment effect. We modelled the effect of misclassification on required sample size in a hypothetical cardioembolic (CE) stroke trial. Methods We performed a systematic review to quantify the reliability (inter-observer variability) of various stroke aetiological classification systems. We then modelled the effect of this misclassification in a hypothetical trial of anticoagulant in CE stroke contaminated by patients with non-cardioembolic (non-CE) stroke aetiology. Rates of misclassification were based on the summary reliability estimates from our systematic review. We randomly sampled data from previous acute trials in CE and non-CE participants, using the Virtual International Stroke Trials Archive. We used bootstrapping to model the effect of varying misclassification rates on sample size required to detect a between-group treatment effect across 5000 permutations. We described outcomes in terms of survival and stroke recurrence censored at 90 days. Results From 4655 titles, we found 14 articles describing three stroke classification systems. The inter-observer reliability of the classification systems varied from ‘fair’ to ‘very good’ and suggested misclassification rates of 5% and 20% for our modelling. The hypothetical trial, with 80% power and alpha 0.05, was able to show a difference in survival between anticoagulant and antiplatelet in CE with a sample size of 198 in both trial arms. Contamination of both arms with 5% misclassified participants inflated the required sample size to 237 and with 20% misclassification inflated the required sample size to 352, for equivalent trial power. For an outcome of stroke recurrence using the same data, base-case estimated sample size for 80% power and alpha 0.05 was n = 502 in each arm, increasing to 605 at 5% contamination and 973 at 20% contamination. Conclusions Stroke aetiological classification systems suffer from inter-observer variability, and the resulting misclassification may limit trial power. Trial registration Protocol available at reviewregistry540. Electronic supplementary material The online version of this article (10.1186/s13063-019-3222-x) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Azmil H Abdul-Rahim
- Institute of Neuroscience and Psychology, University of Glasgow, Room 0.07, Office Block, Queen Elizabeth University Hospital, G51 4TF, Glasgow, UK.
| | | | - Johann R Selvarajah
- Institute of Neuroscience and Psychology, University of Glasgow, Room 0.07, Office Block, Queen Elizabeth University Hospital, G51 4TF, Glasgow, UK.,Department of Neurology, Institute of Neurological Sciences, Queen Elizabeth University Hospital, Glasgow, UK
| | - Kennedy R Lees
- Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, UK
| | - Terence J Quinn
- Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, UK
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21
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Fu X, Li X, Xiong L, Li X, Huang R, Gao Q. Cerebral Arterial Stiffness as A New Marker of Early Stage Atherosclerosis of The Cerebral Large Artery in Acute Stroke. J Atheroscler Thromb 2019; 26:783-791. [PMID: 30662019 PMCID: PMC6753241 DOI: 10.5551/jat.46573] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Aim: Carotid–cer ebral pulse wave velocity (ccPWV) reflects the segment (C-M segment) stiffness between the common carotid artery and ipsilateral middle cerebral artery. C-M segment atherosclerosis (CMSA) is regarded the most frequent cause of anterior circulation ischemic stroke. We aimed to evaluate the association of ccPWV with early stage CMSA in this study. Methods: Eighty-one acute ischemic stroke (AIS) patients with 154 C-M segments who were successfully evaluated with digital subtraction angiography, ccPWV, carotid intima–media thickness (cIMT), and brachial–ankle pulse wave velocity were enrolled into this study. Patient demographics and clinical data were retrieved from our AIS databases. Results: Multivariate analyses showed that CMSA was independently associated with higher systolic BP, ccPWV, and cIMT. ccPWV and cIMT presented good diagnostic values for evaluating early stage CMSA in the receiver operating characteristic curve analyses. The areas under the curve (AUCs) of ccPWV were significantly higher than that of cIMT (Z = 2.204, P = 0.007). The AUC, sensitivity, specificity, Youden index, and cutoff of ccPWV for detecting early stage CMSA were 0.815 (P < 0.001), 86%, 70.7%, 0.567, and 5.4 m/s, respectively. Furthermore, ccPWV was significantly correlated with the stenosis of CMSA at the early stage in Spearman's correlation analyses (r = 0.877, P < 0.001) and fractional polynomial plot with 95% confidence intervals. Conclusions: Cerebral arterial stiffness has the potential to be a new marker of early stage atherosclerosis of the cerebral large artery. This finding may help us prevent the occurrence of stroke and decrease the burden of society from stroke patients.
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Affiliation(s)
- Xian Fu
- Institute of Neuroscience and Department of Neurology, the Second Affiliated Hospital of Guangzhou Medical University
| | - Xianliang Li
- Institute of Neuroscience and Department of Neurology, the Second Affiliated Hospital of Guangzhou Medical University
| | - Li Xiong
- Department of Medicine & Therapeutics, The Chinese University of Hong Kong
| | - Xuelong Li
- Institute of Neuroscience and Department of Neurology, the Second Affiliated Hospital of Guangzhou Medical University
| | - Ruxun Huang
- Department of Neurology, the First Affiliated Hospital, Sun Yat-Sen University
| | - Qingchun Gao
- Institute of Neuroscience and Department of Neurology, the Second Affiliated Hospital of Guangzhou Medical University
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22
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Harris S, Sungkar S, Rasyid A, Kurniawan M, Mesiano T, Hidayat R. TOAST Subtypes of Ischemic Stroke and Its Risk Factors: A Hospital-Based Study at Cipto Mangunkusumo Hospital, Indonesia. Stroke Res Treat 2018; 2018:9589831. [PMID: 30534355 PMCID: PMC6252221 DOI: 10.1155/2018/9589831] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2018] [Accepted: 10/25/2018] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND AND PURPOSE Stroke is a leading cause of death and disability, with ischemic stroke as the highest prevalent cases in Indonesia. Ischemic stroke can be classified further into five subtypes according to TOAST classification. Numerous studies have revealed that stroke risk factor has variable correlation with different stroke subtype. Currently, there is no data regarding this phenomenon in Indonesia. The aim of study is to identify characteristic of ischemic stroke subtypes and the risk factors in TOAST classification. METHODS A retrospective, cross-sectional study of patients diagnosed with ischemic stroke at Cipto Mangunkusumo Hospital from January till December 2016. Demographic data, ischemic stroke subtypes, risk factors, and other relevant data were documented. Bivariate and multivariate analysis was done using SPSS 23. RESULTS 235 recorded data patients were included. Large artery atherosclerosis (LAA) was the most prevalent stroke subtypes at 59,6%, followed with small vessel disease (SVD) at 26,7%, undetermined etiology at 9,8%, cardioembolism (CE) at 2,1%, and other determined etiology at 0,9%. Hypertension was the most common vascular risk factor. However, it was only significant in SVD (p=0,023) and undetermined etiology subtypes (p<0,001). Significant risk factor in LAA was diabetes (55%; p=0,016) while in CE subtypes was atrial fibrillation (60%;p<0,001). In multivariate analyses, hypertension (OR 3; 95% CI 1,12-8,05) was the only variable that was related to SVD while in CE it was atrial fibrillation (OR 113,5; 95% CI 13,6-946,5). CONCLUSION LAA was the most common stroke ischemic subtypes. Associated risk factor in LAA was diabetes while in SVD and undetermined etiology subtypes it was hypertension. Atrial fibrillation was associated with cardioembolism.
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Affiliation(s)
- Salim Harris
- Division of Neurovascular-Neurosonology-Neurointervention, Department of Neurology, Faculty of Medicine Universitas Indonesia, Jakarta, Indonesia
| | - Saleha Sungkar
- Department of Parasitology, Faculty of Medicine Universitas Indonesia, Jakarta, Indonesia
| | - Al Rasyid
- Division of Neurovascular-Neurosonology-Neurointervention, Department of Neurology, Faculty of Medicine Universitas Indonesia, Jakarta, Indonesia
| | - Mohammad Kurniawan
- Division of Neurovascular-Neurosonology-Neurointervention, Department of Neurology, Faculty of Medicine Universitas Indonesia, Jakarta, Indonesia
| | - Taufik Mesiano
- Division of Neurovascular-Neurosonology-Neurointervention, Department of Neurology, Faculty of Medicine Universitas Indonesia, Jakarta, Indonesia
| | - Rakhmad Hidayat
- Division of Neurovascular-Neurosonology-Neurointervention, Department of Neurology, Faculty of Medicine Universitas Indonesia, Jakarta, Indonesia
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23
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Chen CY, Wu RW, Tsai NW, Lee MS, Lin WC, Hsu MC, Huang CC, Lai YR, Kung CT, Wang HC, Su YJ, Su CM, Hsiao SY, Cheng BC, Chiang YF, Lu CH. Increased circulating endothelial progenitor cells and improved short-term outcomes in acute non-cardioembolic stroke after hyperbaric oxygen therapy. J Transl Med 2018; 16:255. [PMID: 30208940 PMCID: PMC6134692 DOI: 10.1186/s12967-018-1629-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2018] [Accepted: 09/06/2018] [Indexed: 01/08/2023] Open
Abstract
Background Acute ischemic stroke is a leading cause of mortality and long-term disability, and profiles of endothelial progenitor cells (EPCs) reflect the degree of endothelial impairment. This study tested the hypothesis that hyperbaric oxygen therapy (HBOT) both improves the clinical short-term outcomes and increases the number of circulating EPCs and antioxidant capacity. Methods The numbers of circulating EPCs [CD133+/CD34+ (%), KDR+/CD34+ (%)], biomarkers for oxidative stress (thiols and thiobarbituric acid-reactive substances), and clinical scores (National Institutes of Health Stroke Scale [NIHSS], Barthel index [BI], and modified Rankin Scale [MRS]) were prospectively evaluated in 25 patients with acute non-cardioembolic stroke under HBOT at two time points (pre- and post-HBOT). The biomarkers and clinical scores were compared with those of 25 age- and sex-matched disease controls. Results The numbers of KDR+/CD34+ (%) in the HBOT group following HBOT increased significantly, whereas the numbers of CD133+/CD34+ (%) also showed a tendency to increase without statistical significance. The mean high-sensitivity C-reactive protein levels showed significant decrease post-HBOT follow-up in the HBOT group. The changes in KDR+/CD34+EPC (%) numbers were positively correlated with changes in clinical outcomes scores (BI, NIHSS, and MRS) in the HBOT group. Conclusions Based on the results of our study, HBOT can both improve short-term clinical outcomes and increase the number of circulating EPCs in patients with acute non-cardioembolic stroke.
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Affiliation(s)
- Chen-Yu Chen
- Department of Hyperbaric Oxygen Therapy Center, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung, Taiwan.,Department of Orthopaedic Surgery, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Re-Wen Wu
- Department of Hyperbaric Oxygen Therapy Center, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung, Taiwan.,Department of Orthopaedic Surgery, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Nai-Wen Tsai
- Department of Neurology, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Mel S Lee
- Department of Hyperbaric Oxygen Therapy Center, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung, Taiwan.,Department of Orthopaedic Surgery, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Wei-Che Lin
- Department of Radiology, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Mei-Chi Hsu
- Department of Nursing, I-Shou University, Kaohsiung, Taiwan
| | - Chih-Cheng Huang
- Department of Neurology, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Yun-Ru Lai
- Department of Neurology, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Chia-Te Kung
- Department of Emergency Medicine, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Hung-Chen Wang
- Department of Neurosurgery, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Yu-Jih Su
- Department of Rheumatology, Allergy and Immunology, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Chih-Min Su
- Department of Emergency Medicine, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Sheng-Yuan Hsiao
- Department of Emergency Medicine, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Ben-Chung Cheng
- Department of Nephrology, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung, Taiwan.,Department of Biological Science, National Sun Yat-Sen University, Kaohsiung, Taiwan
| | - Yi-Fang Chiang
- Department of Orthopaedic Surgery, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Cheng-Hsien Lu
- Department of Neurology, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung, Taiwan. .,Department of Biological Science, National Sun Yat-Sen University, Kaohsiung, Taiwan. .,Department of Neurology, Xiamen Chang Gung Memorial Hospital, Xiamen, Fujian, China.
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24
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Fu X, Liu Q, Zeng X, Huang S, Huang R, Gao Q. Association between Cerebral Arterial Stiffness and Large Artery Atherosclerosis in Acute Ischemic Stroke. J Stroke Cerebrovasc Dis 2018; 27:2993-3000. [PMID: 30146389 DOI: 10.1016/j.jstrokecerebrovasdis.2018.06.033] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2018] [Revised: 06/15/2018] [Accepted: 06/23/2018] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND AND PURPOSE Carotid-cerebral pulse wave velocity (ccPWV) reflects the segment (C-M segment) stiffness between common carotid artery and ipsilateral middle cerebral artery. The C-M segment atherosclerosis (CMSA) is regarded as a most frequent cause of anterior circulation ischemic stroke. We therefore, attempted to investigate the relationship between cerebral arterial stiffness and CMSA, and provide reliable data for the early diagnosis of CMSA. METHODS Between June 2012 and August 2016, 81 acute ischemic stroke (AIS) patients with 154 C-M segments successfully evaluated with digital subtraction angiography and ccPWV were enrolled into this study. Patient demographics and clinical data were retrieved from our AIS databases. RESULTS Multivariate analyses showed that ccPWV was independently associated with CMSA (β = 39.6, P = .009) and Systolic blood pressure (β = 7.1, P < .001) in AIS patients. The values of ccPWV had a trend to be higher in the groups with more lesions (F = 45.9, P < .01) and severer stenosis (F = 102.6, P = .000), and was positively correlated with the number of lesions (r = .662, P = .000), and degree of stenosis (r = .858, P = .000) of CMSA. The fractional polynomial plots with 95% CIs also describe the close relationship between ccPWV and the number of lesions and degree of stenosis in CMSA. CONCLUSIONS Cerebral arterial stiffness is independently associated with the presence of CMSA, closely related to the vascular damage of C-M segment and reflects the vascular structure change of C-M segment in AIS patients. It may have the potential for assessment of CMSA in its initial stage.
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Affiliation(s)
- Xian Fu
- Department of Neurology and Institute of Neuroscience, the Second Affiliated Hospital of Guangzhou Medical University, Guangzhou
| | - Qi Liu
- New Era Stroke Care and Research Institute, General Hospital of the PLA Rocket Force, Beijing
| | - Xianfan Zeng
- Department of Neurology and Institute of Neuroscience, the Second Affiliated Hospital of Guangzhou Medical University, Guangzhou
| | - Shiyan Huang
- Department of Neurology and Institute of Neuroscience, the Second Affiliated Hospital of Guangzhou Medical University, Guangzhou
| | - Ruxun Huang
- Department of Neurology, the First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Qingchun Gao
- Department of Neurology and Institute of Neuroscience, the Second Affiliated Hospital of Guangzhou Medical University, Guangzhou.
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Gao F, Wang CT, Chen C, Guo X, Yang LH, Ma XC, Han JF. Effect of Hypokalemia on Functional Outcome at 3 Months Post-Stroke Among First-Ever Acute Ischemic Stroke Patients. Med Sci Monit 2017; 23:2825-2832. [PMID: 28600907 PMCID: PMC5475375 DOI: 10.12659/msm.902464] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
Background Hypokalemia has been confirmed to be a predictor of adverse cardiovascular and renal outcomes. There is a paucity of studies focusing on the potential connection between the serum K+ level and the outcome after acute ischemic stroke (AIS). This study investigated whether hypokalemia in the acute stroke stage contributes to worse functional outcome in AIS patients. Material/Methods This retrospective cohort study included consecutive patients with first-ever AIS admitted between June 2015 and March 2016. Patients were divided into 2 groups: hypokalemia (K+ <3.5 mmol/L) and normokalemia (3.5 mmol/L ≤K+ ≤5.5 mmol/L). Primary outcome measure was poor outcome at 3 months (modified Rankin scale >2). Univariate and multivariate logistic regression analyses were used to assess the association between hypokalemia and poor outcome. Receiver operating curve (ROC) analysis was performed to determine the optimal cutoff point of serum K+ level for predicting poor outcome. Results The percent of patients with poor outcome at 3 months was higher in the hypokalemic group (62.9%) than in the normokalemic group (45.5%). Hypokalemic patients tended to have lower fasting glucose at admission, lower Glasgow coma scale score, and longer time from symptom onset to treatment compared with normokalemic patients. Hypokalemia was associated with poor outcome at 3 months after adjusting for potential confounders (odds ratio=2.42, 95% confidence interval=1.21–4.86, P=0.013). ROC analysis showed that the optimal threshold for serum K+ level was 3.7 mmol/L. Conclusions Hypokalemia at the initial admission is associated with poor prognosis at 3 months in first-ever AIS patients.
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Affiliation(s)
- Fan Gao
- Clinical Research Center, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China (mainland)
| | - Cheng-Tai Wang
- Department of Neurology, Baoji City Chinese Medicine Hospital, Baoji, Shaanxi, China (mainland)
| | - Chen Chen
- Department of Neurology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China (mainland)
| | - Xing Guo
- Department of Pharmacy, The First Affiliated Hospital of Xi'an Medical University, Xi'an, Shaanxi, China (mainland)
| | - Li-Hong Yang
- Clinical Research Center, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China (mainland)
| | - Xian-Cang Ma
- Clinical Research Center, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China (mainland).,Department of Psychiatry, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China (mainland)
| | - Jian-Feng Han
- Department of Neurology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China (mainland)
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Saba L, Sanfilippo R, di Martino M, Porcu M, Montisci R, Lucatelli P, Anzidei M, Francone M, Suri JS. Volumetric Analysis of Carotid Plaque Components and Cerebral Microbleeds: A Correlative Study. J Stroke Cerebrovasc Dis 2017; 26:552-558. [DOI: 10.1016/j.jstrokecerebrovasdis.2016.11.123] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2016] [Revised: 09/18/2016] [Accepted: 11/29/2016] [Indexed: 12/01/2022] Open
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Schmitz ML, Simonsen CZ, Svendsen ML, Larsson H, Madsen MH, Mikkelsen IK, Fisher M, Johnsen SP, Andersen G. Ischemic stroke subtype is associated with outcome in thrombolyzed patients. Acta Neurol Scand 2017; 135:176-182. [PMID: 26991747 DOI: 10.1111/ane.12589] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/01/2016] [Indexed: 11/30/2022]
Abstract
OBJECTIVES The impact of ischemic stroke subtype on clinical outcome in patients treated with intravenous tissue-type plasminogen activator (IV-tPA) is sparsely examined. We studied the association between stroke subtype and clinical outcome in magnetic resonance imaging (MRI)-evaluated patients treated with IV-tPA. MATERIAL AND METHODS We conducted a single-center retrospective analysis of MRI-selected stroke patients treated with IV-tPA between 2004 and 2010. The Trial of ORG 10172 in Acute Stroke Treatment criteria were used to establish the stroke subtype by 3 months. The outcomes of interest were a 3-month modified Rankin Scale score of 0-1 (favorable outcome), and early neurological improvement defined as complete remission of neurological deficit or improvement of ≥4 on the National Institute of Health Stroke Scale at 24 h. The outcomes among stroke subtypes were compared with multivariable logistic regression. RESULTS Among 557 patients, 202 (36%) had large vessel disease (LVD), 153 (27%) cardioembolic stroke (CE), 109 (20%) small vessel disease, and 93 (17%) were of other or undetermined etiology. Early neurological improvement was present in 313 (56.4%) patients, and 361 (64.8%) patients achieved a favorable outcome. Early neurological improvement and favorable outcome were more likely in CE patients compared with LVD patients (odds ratio (OR), 2.1 (95% confidence interval, 1.4-3.3), and 2.0 (95% confidence interval, 1.2-3.3), respectively). CONCLUSIONS Cardioembolic stroke patients were more likely to achieve early neurological improvement and favorable outcome compared with LVD stroke following MRI-based IV-tPA treatment. This finding may reflect a difference in the effect of IV-tPA among stroke subtypes.
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Affiliation(s)
- M. L. Schmitz
- Department of Neurology; Aalborg University Hospital; Aalborg Denmark
| | - C. Z. Simonsen
- Departments of Neurology; Aarhus University Hospital; Aarhus Denmark
| | - M. L. Svendsen
- Departments of Clinical Epidemiology; Aarhus University Hospital; Aarhus Denmark
| | - H. Larsson
- Departments of Clinical Epidemiology; Aarhus University Hospital; Aarhus Denmark
| | - M. H. Madsen
- Departments of Neuroradiology; Aarhus University Hospital; Aarhus Denmark
| | - I. K. Mikkelsen
- Center for Functionally Integrative Neuroscience; Aarhus University Hospital; Aarhus Denmark
| | - M. Fisher
- Beth Israel Deaconess Medical Center; Harvard Medical School; Boston MA USA
| | - S. P. Johnsen
- Departments of Clinical Epidemiology; Aarhus University Hospital; Aarhus Denmark
| | - G. Andersen
- Departments of Neurology; Aarhus University Hospital; Aarhus Denmark
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Gao F, Chen C, Lu J, Zheng J, Ma XC, Yuan XY, Huo K, Han JF. De Ritis ratio (AST/ALT) as an independent predictor of poor outcome in patients with acute ischemic stroke. Neuropsychiatr Dis Treat 2017; 13:1551-1557. [PMID: 28670124 PMCID: PMC5478276 DOI: 10.2147/ndt.s139316] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
PURPOSE The aspartate transaminase/alanine transaminase ratio (De Ritis ratio, AAR) was reported to be associated with patients' prognosis in certain diseases recently. The objective of the current study was to determine the association between the AAR at admission and poor outcome at 3 months in acute ischemic stroke (AIS) patients. PATIENTS AND METHODS This retrospective cohort study included patients who experienced their first-ever AIS between June 2015 and March 2016. The primary outcome measure was a poor outcome at 3 months (modified Rankin Scale score >2). Multivariate logistic regression models were used to assess the relationship between AAR quartiles and clinical outcomes among the AIS patients. Receiver operating characteristic curve analysis was applied to identify the optimal cutoff for AAR in predicting the prognosis of AIS. RESULTS In terms of the relationship between poor outcome and AAR, the adjusted odds ratio comparing the highest and lowest AAR quartiles was 2.15 (95% confidence interval =1.14-4.05). An AAR of 1.53 was identified as the optimal cutoff. In a prespecified subgroup analysis according to the time from symptom onset to treatment (>24 vs ≤24 hours), there was no significant difference in the effect of AAR >1.53 between the two groups. CONCLUSION An increased AAR at admission is significantly associated with a poor outcome at 3 months in AIS patients.
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Affiliation(s)
| | | | | | | | - Xian-Cang Ma
- Clinical Research Center.,Department of Psychiatry, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
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Anzidei M, Suri JS, Saba L, Sanfilippo R, Laddeo G, Montisci R, Piga M, Argiolas GM, Raz E. Longitudinal assessment of carotid atherosclerosis after Radiation Therapy using Computed Tomography: A case control Study. Eur Radiol 2015; 26:72-8. [PMID: 26408306 DOI: 10.1007/s00330-015-3753-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2014] [Revised: 02/04/2015] [Accepted: 03/30/2015] [Indexed: 11/25/2022]
Abstract
OBJECTIVES To study the carotid artery plaque composition and its volume changes in a group of patients at baseline and 2 years after head and neck radiation therapy treatment (HNXRT). METHODS In this retrospective study, 62 patients (41 males; mean age 63 years; range 52-81) who underwent HNXRT and 40 patients (24 males; mean age 65) who underwent surgical resection of neoplasm and did not undergo HNXRT were assessed, with 2-year follow-up. The carotid artery plaque volumes, as well as the volume of the sub-components (fatty-mixed-calcified), were semiautomatically quantified. Mann-Whitney and Wilcoxon tests were used to test the hypothesis. RESULTS In the HNXRT group, there was a statistically significant increase in the total volume of the carotid artery plaques (from 533 to 746 mm(3); p = 0.001), in the fatty plaques (103 vs. 202 mm(3); p = 0.001) and mixed plaque component volume (328 vs. 419 mm(3); p = 0.034). A statistically significant variation (from 21.8 % to 27.6 %) in the percentage of the fatty tissue was found. CONCLUSIONS Results of this preliminary study suggest that HNXRT promotes increased carotid artery plaque volume, particularly the fatty plaque component. KEY POINTS HNXRT increases carotid plaque volume. Plaque volume increase is mainly due to increase.in fatty plaque component. Patients who undergo HNXRT have a progression of carotid artery disease.
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Affiliation(s)
- Michele Anzidei
- Department of Radiology, University of Rome la Sapienza, Rome, Italy
| | - Jasjit S Suri
- Monitoring and Diagnostic Division, AtheroPoint(TM) LLC, Roseville, CA, USA / Point of Care Devices, Global Biomedical Technologies, Inc., CA, USA / Electrical Engineering Department (Affl.), University of Idaho, Moscow, ID, USA
| | - Luca Saba
- Department of Radiology, Azienda Ospedaliero Universitaria (A.O.U.), di Cagliari, Polo di Monserrato, s.s. 554 Monserrato, Cagliari, 09045, Italy.
| | - Roberto Sanfilippo
- Department of Vascular Surgery, Azienda Ospedaliero Universitaria (A.O.U.), di Cagliari, Polo di Monserrato, s.s. 554 Monserrato, Cagliari, 09045, Italy
| | - Giancarlo Laddeo
- Department of Radiology, New York University Langone Medical Center, New York, NY, 10016, USA
| | - Roberto Montisci
- Department of Vascular Surgery, Azienda Ospedaliero Universitaria (A.O.U.), di Cagliari, Polo di Monserrato, s.s. 554 Monserrato, Cagliari, 09045, Italy
| | - Mario Piga
- Monitoring and Diagnostic Division, AtheroPoint(TM) LLC, Roseville, CA, USA / Point of Care Devices, Global Biomedical Technologies, Inc., CA, USA / Electrical Engineering Department (Affl.), University of Idaho, Moscow, ID, USA
| | | | - Eytan Raz
- Department of Radiology, University of Rome la Sapienza, Rome, Italy.,Department of Radiology, New York University Langone Medical Center, New York, NY, 10016, USA
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Pandian S, Arya KN, Kumar D. Effect of motor training involving the less-affected side (MTLA) in post-stroke subjects: a pilot randomized controlled trial. Top Stroke Rehabil 2015; 22:357-67. [PMID: 25920470 DOI: 10.1179/1074935714z.0000000022] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
INTRODUCTION Poststroke, less-severe motor impairment occurs on the ipsilesional side of body. The objective of the present study was to evaluate the effectiveness of the motor training involving the less-affected side (MTLA) in stroke. METHODS This was a randomized, controlled, double-blinded pilot study conducted in the occupational therapy unit of a rehabilitation Institute. A convenience sample of 35 stroke subjects (mean poststroke duration, 28.76 weeks) was randomized into two groups (the experimental group: 17 and control group: 18). Thirty-two participants completed the entire study protocol. The experimental group and control group were provided MTLA and neurophysiological-based conventional therapy respectively. Both the groups received 24 treatment sessions (60 minutes each) over the period of two months. The Affected side was assessed using Brunnstrom recovery stage (BRS) and Fugl-Meyer assessment (FMA) whereas the less-affected side was evaluated by Minnesota manual dexterity test (MMDT), Purdue peg board test (PPBT) and Manual Muscle Testing (MMT). RESULTS Postintervention, the less-affected side of experimental group demonstrated significant improvement for MMDT (P = 0.003), PPBT (P = 0.01) and MMT (P < 0.001 to 0.043) in comparison to the control group. Further, as compared to the control group, the experimental group exhibited positive significant change for the measure of affected side [BRS (P < 0.001) and FMA (P < 0.001 to 0.03)] at post assessment. CONCLUSION MTLA enhanced the muscle strength, dexterity and coordination of the less-affected side as well as the motor recovery of the affected side in poststroke hemiparetic subjects.
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Narayan Arya K, Verma R, Garg R, Sharma V, Agarwal M, Aggarwal G. Meaningful Task-Specific Training (MTST) for Stroke Rehabilitation: A Randomized Controlled Trial. Top Stroke Rehabil 2015; 19:193-211. [DOI: 10.1310/tsr1903-193] [Citation(s) in RCA: 85] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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He Y, Ma N, Xing C, Wang X, Xiao H, Zheng M, Han G, Chen G, Hou C, Shen B, Li Y, Jiang Z, Wang R, Hu W. Novel IL-6-secreting γδT cells increased in patients with atherosclerotic cerebral infarction. Mol Med Rep 2014; 11:1497-503. [PMID: 25351283 DOI: 10.3892/mmr.2014.2796] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2013] [Accepted: 09/18/2014] [Indexed: 11/06/2022] Open
Abstract
Mounting evidence has suggested that inflammation associated with interleukin (IL)‑6 and T‑helper (Th)17 cells, has a role in the development of atherosclerotic cerebral infarction (ACI). However, it remains unclear which population of cells determines the levels of IL‑6, and the role of IL‑6‑secreting cells in inducing Th17 cell production. In the present study, IL‑6 levels were determined in patients with ACI, by ELISA. The percentage of CD3+T, CD4+T, CD8+T, CD11c+ dendritic cells and γδT cells were determined by flow cytometry, and the correlation between cytokine IL‑6 and γδT cells was determined by statistical analysis. An in vitro culture assay was used to determine whether γδT cells secreted high levels of IL‑6, and induced production of Th17 cells. The patients with ACI had significantly higher levels of IL‑6 and γδT cells. Furthermore, γδT cells were associated with the secretion of a high level of IL‑6 in patients with ACI. These results indicate that γδT cells are novel IL‑6‑secreting cells, which from then on were known as γδT6 cells. In addition, the novel γδT6 cells induced Th17‑cell production, and this induction was dependent on IL‑6. Novel γδT6 cells increased the induction of Th17‑cell production in patients with ACI. The results of the present study suggest that novel γδT6 cells may be a target for strategic therapies of ACI.
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Affiliation(s)
- Youdi He
- Department of Neurology, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, P.R. China
| | - Ning Ma
- Laboratory of Immunology, Institute of Basic Medical Sciences, Beijing 100850, P.R. China
| | - Chen Xing
- Laboratory of Immunology, Institute of Basic Medical Sciences, Beijing 100850, P.R. China
| | - Xiaoqian Wang
- Laboratory of Immunology, Institute of Basic Medical Sciences, Beijing 100850, P.R. China
| | - He Xiao
- Laboratory of Immunology, Institute of Basic Medical Sciences, Beijing 100850, P.R. China
| | - Mingke Zheng
- Laboratory of Immunology, Institute of Basic Medical Sciences, Beijing 100850, P.R. China
| | - Gencheng Han
- Laboratory of Immunology, Institute of Basic Medical Sciences, Beijing 100850, P.R. China
| | - Guojiang Chen
- Laboratory of Immunology, Institute of Basic Medical Sciences, Beijing 100850, P.R. China
| | - Chunmei Hou
- Laboratory of Immunology, Institute of Basic Medical Sciences, Beijing 100850, P.R. China
| | - Beifen Shen
- Laboratory of Immunology, Institute of Basic Medical Sciences, Beijing 100850, P.R. China
| | - Yan Li
- Laboratory of Immunology, Institute of Basic Medical Sciences, Beijing 100850, P.R. China
| | - Zhenyu Jiang
- Department of Rheumatology, First Hospital of Jilin University, Changchun, Jilin 130021, P.R. China
| | - Renxi Wang
- Laboratory of Immunology, Institute of Basic Medical Sciences, Beijing 100850, P.R. China
| | - Wenli Hu
- Department of Neurology, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, P.R. China
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Sung SF, Chen YW, Hung LC, Lin HJ. Revised iScore to predict outcomes after acute ischemic stroke. J Stroke Cerebrovasc Dis 2014; 23:1634-9. [PMID: 24709145 DOI: 10.1016/j.jstrokecerebrovasdis.2014.01.010] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2013] [Revised: 01/05/2014] [Accepted: 01/09/2014] [Indexed: 11/18/2022] Open
Abstract
The iScore is a validated tool to predict mortality and functional outcome after acute ischemic stroke. It incorporates stroke subtype according to the Trial of Org 10172 in Acute Stroke Treatment (TOAST) classification as one of its factors. However, the TOAST stroke subtype may not be easily determined without extensive investigations. We aimed to test if the stroke subtype can be substituted by the Oxfordshire Community Stroke Project (OCSP) classification. We applied the iScore and the revised iScore, in which the TOAST subtype was replaced by the OCSP classification, to patients admitted to a single hospital for acute ischemic stroke. Outcome measures included poor functional status (modified Rankin scale score, 3-6) at discharge and 3 months. The performance between the iScore and the revised iScore was assessed by determining the discrimination and calibration of the scores. We studied 3196 patients at the acute stage, and among them 2349 patients were available for the 3-month assessment. The discrimination of the revised iScore was comparable with the iScore for poor outcome at discharge (area under the receiver operating characteristic curve, .767 versus .775; P=.06) and at 3-month (.801 versus .810; P=.06). The correlation between the observed and the expected outcomes was high for both the iScore (Pearson correlation coefficient, .993 at discharge and .995 at 3 months; both P<.0001) and the revised iScore (.985 and .993, respectively; both P<.0001). The revised iScore reliably predicts clinical outcomes at discharge and 3 months for patients with acute ischemic stroke.
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Affiliation(s)
- Sheng-Feng Sung
- Division of Neurology, Department of Internal Medicine, Ditmanson Medical Foundation Chia-Yi Christian Hospital, Chiayi City, Taiwan; Min-Hwei College of Health Care Management, Tainan, Taiwan
| | - Yu-Wei Chen
- Department of Neurology, Landseed Hospital, Tao-Yuan County, Taiwan; Department of Neurology, National Taiwan University Hospital, Taipei, Taiwan
| | - Ling-Chien Hung
- Division of Neurology, Department of Internal Medicine, Ditmanson Medical Foundation Chia-Yi Christian Hospital, Chiayi City, Taiwan
| | - Huey-Juan Lin
- Department of Neurology, Chi-Mei Medical Center, Tainan, Taiwan; Department of Cosmetic Science, Chia Nan University of Pharmacy and Science, Tainan, Taiwan.
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Yin C, Li S, Zhao W, Guo Y, Zhang Y, Feng J. The role of fibroblast growth factor receptor 4 polymorphisms in the susceptibility and clinical features of ischemic stroke. J Clin Neurosci 2014; 21:246-9. [PMID: 24239227 DOI: 10.1016/j.jocn.2013.04.018] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2012] [Revised: 03/20/2013] [Accepted: 04/01/2013] [Indexed: 01/26/2023]
Affiliation(s)
- Changhao Yin
- Department of Neurology, Hongqi Hospital, Mudanjiang Medical University, Aimin District, Mudanjiang 157011, China
| | - Siou Li
- Department of Neurology, Hongqi Hospital, Mudanjiang Medical University, Aimin District, Mudanjiang 157011, China
| | - Weina Zhao
- Department of Neurology, Hongqi Hospital, Mudanjiang Medical University, Aimin District, Mudanjiang 157011, China
| | - Yanqin Guo
- Department of Neurology, Hongqi Hospital, Mudanjiang Medical University, Aimin District, Mudanjiang 157011, China
| | - Ying Zhang
- Department of Neurology, First Hospital, Ji Lin University, Chang Chun 130021, China
| | - Jiachun Feng
- Department of Neurology, First Hospital, Ji Lin University, Chang Chun 130021, China.
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Saba L, Meiburger KM, Molinari F, Ledda G, Anzidei M, Acharya UR, Zeng G, Shafique S, Nicolaides A, Suri JS. Carotid IMT variability (IMTV) and its validation in symptomatic versus asymptomatic Italian population: can this be a useful index for studying symptomaticity? Echocardiography 2012; 29:1111-9. [PMID: 22748012 DOI: 10.1111/j.1540-8175.2012.01763.x] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
Abstract
The carotid intima-media thickness (IMT) is a validated marker of cerebrovascular disease risk. This paper presents a new parameter, the IMT variability (IMTV), and compares it between symptomatic and asymptomatic patients taken from a cohort of Italian population. One hundred forty-two patients were analyzed (age 59 ± 112 years, 59% males), 42 of these patients suffered from TIA or minor stroke. The lumen-intima (LI) and media-adventitia (MA) interfaces of the far wall were manually traced by a Reader. We also used a computer-based automated system (called AutoEdge) to obtain the LI/MA interfaces. The LI/MA interfaces were used to measure the IMT and the IMTV along the distal wall of the common carotid artery. Wilcoxon and Pearson correlation analyses were performed. The agreement between the Reader's IMT and the AutoEdge IMT values was 98.7% for the symptomatic (0.83 ± 0.44 mm for Reader, 0.82 ± 0.35 mm for AutoEdge) and 94.9% for the asymptomatic patients (0.78 ± 0.45 mm for Reader, 0.74 ± 0.30 mm for AutoEdge). Correlation was 65% for symptomatic and 68% for asymptomatic patients, respectively. The IMT measured using AutoEdge was 1.2% lower compared to manual measurements in symptomatic population, while 5.12% lower in asymptomatic. The IMTV was 11% higher in symptomatic patients compared to asymptomatic when using manual delineations, 8% higher when using AutoEdge. There was no statistical difference between the manual and automated IMTV measurements (Wilcoxon signed rank, P > 0.7). We conclude that the IMT and IMTV values were very similar between Reader and AutoEdge software when studying symptomatic and asymptomatic patients in Italian population.
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Affiliation(s)
- Luca Saba
- Department of Radiology, A.U.O. Cagliari, Cagliari, Italy
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Saba L, Montisci R, Raz E, Sanfilippo R, Suri JS, Piga M. Association between carotid artery plaque type and cerebral microbleeds. AJNR Am J Neuroradiol 2012; 33:2144-50. [PMID: 22627799 DOI: 10.3174/ajnr.a3133] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE CMBs have become increasingly recognized with the widespread use of MR imaging techniques that are sensitive to iron deposits. The purpose of this study was to correlate the presence of CMBs and carotid plaque characteristics. MATERIAL AND METHODS Seventy consecutive patients (47 men; 23 women; mean age, 65 years) were prospectively analyzed. Carotid arteries were studied using a 16-detector row CT scanner, whereas the brain was explored with an MR imaging 1.5T system. CMBs were studied using a T2*-weighted GRE sequence. CMBs were classified by an ordinal scale and carotid plaques were characterized based on their composition as fatty, mixed, or calcified. Patients were classified as symptomatic and asymptomatic. Chi-square and multiple logistic regression analyses, as well as ROCs, were calculated. RESULTS The prevalence of CMBs was 30%. A statistically significant difference in CMB prevalence was observed between symptomatic (46%) and asymptomatic (19%) patients (P value = .0021; OR = 3.7). Correlation analysis demonstrated an association between the number of CMBs and the symptoms (P = .0001). A statistically significant association was observed between the presence of fatty plaque and CMBs (P = .0019). CONCLUSIONS The results of this study suggest an association between the presence of carotid artery fatty plaque, symptoms, and CMBs. Moreover, we found that the presence (and entity) of CMBs may represent an indicator of cerebrovascular symptom severity.
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Affiliation(s)
- L Saba
- Departments of Radiology, Azienda Ospedaliero Universitaria, di Cagliari, Cagliari, Italy.
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Usacheva MA, Nasedkina TV, Ikonnikova AY, Kulikov AV, Chudinov AV, Lysov YP, Bondarenko EV, Slominskii PA, Shamalov NA, Shetova IM, Limborskaya SA, Zasedatelev AS, Skvortsova VI. Association of polymophisms of renin-angiotensin and hemostasis system genes with ischemic stroke in Russians from central Russia. Mol Biol 2012. [DOI: 10.1134/s0026893312010232] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Verma R, Arya KN, Garg RK, Singh T. Task-oriented circuit class training program with motor imagery for gait rehabilitation in poststroke patients: a randomized controlled trial. Top Stroke Rehabil 2012; 18 Suppl 1:620-32. [PMID: 22120031 DOI: 10.1310/tsr18s01-620] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
BACKGROUND AND OBJECTIVE The ability to walk is impaired in more than 80% of poststroke patients. The objective of the present study was to evaluate the effectiveness of the task-oriented circuit class training (TOCCT) with motor imagery (MI) on the gait during the subacute phase after a stroke. METHOD This was a randomized, controlled, assessor-blinded trial in a neurology department of a university hospital. A convenience sample of 30 people, 4 to 12 weeks (mean, 6.3 weeks) after the stroke was randomized into 2 groups (the TOCCT with MI and standard training group) of 15 people each. Twenty-nine participants completed the 6-week follow-up. Participants were assigned to receive either the TOCCT with MI or dose-matched standard training program based on the Bobath's neurodevelopmental technique, 7 days a week for 2 weeks, as outpatients or inpatients. Outcome measures were the Functional Ambulation Classification (FAC), the Rivermead Visual Gait Assessment (RVGA), step length asymmetry, walking speed, and 6-minute walk test (6MWT). RESULTS The TOCCT with MI group showed a positive improvement in the mean/median scores on most of the outcome measures at post and follow-up assessments in comparison to the control group. However, statistically significant differences were observed in changes between the groups at post and follow-up assessment for FAC, RVGA, walking speed, and 6MWT (ANOVA, P = .001 to .049; Mann-Whitney U test, P = .001). CONCLUSION Among the patients who had a stroke within the previous 4 to 12 weeks, the TOCCT with MI produced statistically significant and clinically relevant improvements in the gait and the gait-related activities.
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Affiliation(s)
- Rajesh Verma
- Department of Neurology, CSM Medical University, Lucknow, India
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Saba L, Sanfilippo R, Montisci R, Mallarini G. Carotid artery stenosis at MSCT: is there a threshold in millimeters that determines clinical significance? Cardiovasc Intervent Radiol 2011; 35:49-58. [PMID: 21301843 DOI: 10.1007/s00270-011-0108-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/11/2010] [Accepted: 01/10/2011] [Indexed: 11/30/2022]
Abstract
PURPOSE The purpose of this work was to determine whether it is possible to identify a reliable carotid stenosis threshold--measured in millimeters (mm)--that is associated with cerebrovascular symptoms. METHODS Written, informed consent was obtained for each patient; 149 consecutive patients (98 men; median age, 68 years) were studied for suspected pathology of the carotid arteries by using MDCTA. In each patient, carotid artery stenosis was quantified using the mm-method. Continuous data were described as the mean value ± standard deviation (SD), and they were compared by using the Student's t test. A ROC curve was calculated to test the study hypothesis and identify a specific mm-stenosis threshold. Logistic regression analysis was performed to include other MDCTA findings, such as plaque type and ulcerations. A P value < 0.05 was considered to indicate statistical significance. RESULTS Twenty-six patients were excluded. Of those remaining, 75 patients suffered cerebrovascular symptoms (61%). There was a statistically significant difference (P = 0.0046) in the mm-carotid stenosis between patients with symptoms (1.31 ± 0.64 mm SD) and without symptoms (1.68 ± 0.79 mm SD). Multiple logistic regression analysis confirmed that symptoms were associated with increased luminal stenosis (P = 0.013) and with the presence of fatty plaques (P = 0.0491). Moreover, the ROC curve (Az = 0.669; ±0.051 SD; P = 0.0009) indicated that a threshold of 1.6 mm stenosis was associated with a sensitivity to symptoms of 76%. CONCLUSIONS The results of our study suggest an association between luminal stenosis (measure in mm) and the presence of cerebrovascular symptoms. Luminal stenosis of 1.6 mm is associated, with a sensitivity of 76%, with cerebrovascular symptoms.
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Affiliation(s)
- Luca Saba
- Department of Radiology, Azienda Ospedaliero Universitaria, di Cagliari-Polo di Monserrato, s.s. 554, 09045 Monserrato, CA, Italy.
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Adams HP. Clinical Scales to Assess Patients with Stroke. Stroke 2011. [DOI: 10.1016/b978-1-4160-5478-8.10021-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Adams HP, Lyden P. Assessment of a patient with stroke neurological examination and clinical rating scales. HANDBOOK OF CLINICAL NEUROLOGY 2009; 94:971-1009. [PMID: 18793885 DOI: 10.1016/s0072-9752(08)94048-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Affiliation(s)
- Harold P Adams
- Department of Neurology, Carver College of Medicine, University of Iowa, Iowa City, IA 52242, USA.
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Ward RP, Lammertin G, Virnich DE, Polonsky TS, Lang RM. Use of carotid intima-media thickness to identify patients with ischemic stroke and transient ischemic attack with low yield of cardiovascular sources of embolus on transesophageal echocardiography. Stroke 2008; 39:2969-74. [PMID: 18723422 DOI: 10.1161/strokeaha.108.519181] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND AND PURPOSE Carotid intima-media thickness (CIMT) is associated with systemic atherosclerosis and cardioembolic conditions and predicts the risk of recurrent strokes. We sought to establish the relationship between CIMT and cardiovascular sources of embolus (CSE) on transesophageal echocardiography (TEE) and hypothesized that a noninvasive strategy of CIMT assessment and transthoracic echocardiography bubble study would identify patients with ischemic stroke or transient ischemic attack in whom TEE would provide little incremental diagnostic yield. METHODS In 180 patients with ischemic stroke or transient ischemic attack of undetermined origin referred for TEE, we prospectively performed CIMT measurement/plaque screen (Phase 1, n=96) or CIMT measurement/plaque screen and transthoracic echocardiography bubble study (Phase 2, n=84) before TEE. Phase 1 results were used to construct receiver operating characteristic curves to demonstrate the ability of CIMT to detect CSE on TEE and to identify the optimal CIMT cutoff value for prospective strategy testing (Phase 2). RESULTS In Phase 1, CIMT was found to correlate with TEE markers of aortic atherosclerosis, including complex aortic plaques, and combined CSE. The optimal CIMT cutoff for detection of CSE on TEE was 0.78 mm. In Phase 2, a positive noninvasive strategy test (CIMT >or=0.78 mm, +carotid plaque, and/or a positive transthoracic echocardiography bubble study) was present in 61%. The prevalence of CSE on TEE was significantly higher among those with a positive compared with a negative noninvasive strategy test (65% versus 9%, P<0.001), and this strategy had a sensitivity of 92% and a negative predictive value of 91% for the detection of any CSE on TEE. CONCLUSIONS In patients with stroke or transient ischemic attack of undetermined origin, a noninvasive strategy of CIMT assessment/plaque screen and transthoracic echocardiography bubble study can identify patients in whom further invasive evaluation with TEE will be of low diagnostic yield.
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Affiliation(s)
- R Parker Ward
- Non-Invasive Imaging Laboratories, Section of Cardiology, Department of Medicine, University of Chicago, Chicago, IL 60637, USA.
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Meschia JF, Barrett KM, Chukwudelunzu F, Brown WM, Case LD, Kissela BM, Brown RD, Brott TG, Olson TS, Rich SS, Silliman S, Worrall BB. Interobserver agreement in the trial of org 10172 in acute stroke treatment classification of stroke based on retrospective medical record review. J Stroke Cerebrovasc Dis 2008; 15:266-72. [PMID: 17904086 PMCID: PMC2031226 DOI: 10.1016/j.jstrokecerebrovasdis.2006.07.001] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2006] [Accepted: 07/06/2006] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND The reliability of the Trial of Org 10172 in Acute Stroke Treatment (TOAST) classification system of stroke in siblings of stroke-affected probands has not been tested. Similarly, the reliability of using clinical medical records to classify ischemic stroke has not been assessed. The purpose of this study was to establish the interrater reliability of sibling stroke subtyping by applying the TOAST criteria to retrospectively obtained medical records. METHODS Thirty medical records were randomly sampled from among the records of all siblings previously classified as stroke affected by the Siblings with Ischemic Stroke Study (SWISS) Stroke Verification Committee. Blinded medical records for these individuals were sent to 6 physician reviewers who independently classified TOAST stroke subtype on the basis of record review. RESULTS Using the kappa statistic to assess interrater reliability, the overall reliability (SE) for assigning a TOAST subtype of stroke was 0.54 (0.03). Pair-wise comparisons between the original SWISS Stroke Verification Committee diagnoses and the diagnoses made by other reviewers exhibited moderate reliability (kappa range 0.41-0.56). The kappa statistics for common stroke subtypes were large vessel, 0.80 (0.06); cardioembolic, 0.80 (0.06); small vessel, 0.53 (0.06); and unknown cause, 0.40 (0.06). CONCLUSION We conclude that TOAST subtyping had moderate interrater reliability. Large-artery and cardioembolic subtype diagnoses seemed most reliable.
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Affiliation(s)
- James F Meschia
- Department of Neurology, Mayo Clinic, Jacksonville, Florida, USA
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Clinical features, topographic patterns on DWI and etiology of thalamic infarcts. J Neurol Sci 2008; 267:147-53. [PMID: 18164037 DOI: 10.1016/j.jns.2007.10.014] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2005] [Revised: 07/23/2007] [Accepted: 10/03/2007] [Indexed: 11/20/2022]
Abstract
Thalamic infarcts may lead to diverse neurological disturbances, which easily results in misdiagnosis. Diffusion-weighed magnetic resonance imaging (DWI) is sensitive for the early diagnosis of the infarct and identification of the territory involved. The aim of this study was to analyze the clinical features, topographic appearance on DWI and etiology of thalamic infarcts. We reviewed clinical data, vascular risk factors, topographic patterns and etiology of thalamic infarcts. The patients were divided into 2 groups according to DWI patterns: isolated thalamic infarcts (ISO-TH) and combined thalamic infarcts (COM-TH). The former were further subdivided into 2 subgroups: inferolateral isolated thalamic infarcts (INF-TH) and non-inferolateral isolated thalamic infarcts (NON-INF) according to the vascular territories. The Patients were also divided according to etiology based on TOAST classification. The association of clinical features, DWI patterns and etiology was analyzed. Twenty nine patients were included, among which, 23 (79.3%) were ISO-TH and 6 (20.7%) were COM-TH. The most common territory involved in the ISO-TH was inferolateral territory [n=17 (73.9%)], followed by tuberothalamic artery territory [n=3 (13.0%)], and posterior choroidal artery territory [n=2 (8.7%)]. In COM-TH, the most common territory also was the inferolateral territory (n=3), followed by posterior choroidal artery territory (n=1). In 2 patients, the lesions involved more than one vascular thalamic territory. Significant association between small-vessel occlusion (SVO) and ISO-TH (INF-TH+NON-IFN) infarcts were found. Our study suggested that SVO was more prevalent in ISO-TH, and COM-TH needed more etiological examination. DWI might provide meaningful clues about etiology of thalamic infarcts.
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