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Tanaka A, Safi HJ, Estrera AL. Open Thoracoabdominal Aortic Aneurysm Repair. Ann Thorac Surg 2025; 119:957-966. [PMID: 39178928 DOI: 10.1016/j.athoracsur.2024.08.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/05/2024] [Revised: 07/20/2024] [Accepted: 08/06/2024] [Indexed: 08/26/2024]
Abstract
Operative techniques and perioperative management for thoracoabdominal aortic aneurysm (TAAA) have been modified and refined, but the morbidity and mortality remain high. Major challenges in open TAAA repair are prevention of ischemic insults to multiple organs, especially the spinal cord, and minimizing bleeding. The purpose of this narrative review is to provide currently available techniques and management strategies for open TAAA repair that optimize outcomes.
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Affiliation(s)
- Akiko Tanaka
- Department of Cardiothoracic and Vascular Surgery, McGovern Medical School at UTHealth, Houston, Texas.
| | - Hazim J Safi
- Department of Cardiothoracic and Vascular Surgery, McGovern Medical School at UTHealth, Houston, Texas
| | - Anthony L Estrera
- Department of Cardiothoracic and Vascular Surgery, McGovern Medical School at UTHealth, Houston, Texas
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Sourani A, Vahdat N, Bowers CA, Rezvani M, Foroughi M, Sourani A, Mirza R, Baradaran Mahdavi S. SARS-CoV-2 and spinal cord ischemia: a systematic review on clinical presentations, diagnosis, treatment, and outcomes. Spine J 2024; 24:979-988. [PMID: 38365009 DOI: 10.1016/j.spinee.2024.02.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Revised: 12/16/2023] [Accepted: 02/06/2024] [Indexed: 02/18/2024]
Abstract
BACKGROUND CONTEXT Spinal cord ischemia is a rare but ominous clinical situation with high levels of disability. There are emerging reports on COVID-19 and spinal cord ischemic events. PURPOSE To investigate the cardinal manifestations of SARS-CoV-2 associated spinal cord ischemia, review treatment paradigms, and follow outcomes. STUDY DESIGN A systematic review. METHODS The current study was conducted under Preferred Reporting Items for Systematic Reviews and Meta-analysis (PRISMA) guidelines. The authors searched PubMed, Scopus, Web of Science, and Google Scholar for studies published up to February 12, 2023, on spinal cord ischemia and SARS-CoV-2 infection. Data on patient demographics, study methods, medical records, interventions, and outcomes were extracted from eligible articles. For each data set, the authors performed pooled estimates examining 3 factors of interest, which were (1) predisposing factors (2) treatment regimens, and (3) neurological rehabilitation outcomes. Neurological status was reported as the American Spinal Injury Association (ASIA) impairment scale reported by data sets. RESULTS Six data sets were identified. The mean age of the study population was 50 years old, with 66.6% male predominance. Sixty-six percent of the patients had severe COVID-19. Five data sets reported preexisting coagulopathy. ASIA A and B were the most prevalent primary neurological status (80%). The mean interval between COVID-19 and the first neurological deficit was 13 days. Anterior spinal artery lesions were the most prevalent ischemic pattern. The most common treatment regimens were heparin and steroid therapy. Physical rehabilitation showed poor functional outcomes. CONCLUSIONS SARS-CoV-2 is associated with spinal cord ischemia through multiple neuropathological mechanisms. Proper coagulation profile control and aggressive rehabilitation may play a promising role in the prevention and recovery of spinal cord infarction in SARS-CoV-2 patients.
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Affiliation(s)
- Arman Sourani
- Department of Neurosurgery, Isfahan University of Medical Sciences, Isfahan, Iran; Environment Research Center, Research Institute for Primordial Prevention of Non-Communicable Disease, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Noushin Vahdat
- Department of Radiology, University of California San Diego (UCSD), San Diego, CA, USA; Department of Radiology, Veterans Administration Healthcare System, San Diego, CA, USA
| | - Christian A Bowers
- Department of Neurosurgery, University of New Mexico Hospital (UNMH), Albuquerque, NM, USA; Bowers Neurosurgical Frailty and Outcomes Data Science Lab, Albuquerque, NM, 87131, USA
| | - Majid Rezvani
- Department of Neurosurgery, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Mina Foroughi
- Student Research Committee, Isfahan University of Medical Sciences, Isfahan, Iran.
| | - Armin Sourani
- Student Research Committee, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Ryan Mirza
- Department of Radiology, University of California San Diego (UCSD), San Diego, CA, USA
| | - Sadegh Baradaran Mahdavi
- Department of Physical Medicine and Rehabilitation, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran; Child Growth and Development Research Center, Research Institute for Primordial Prevention of Non-Communicable Disease, Isfahan University of Medical Sciences, Isfahan, Iran.
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Naganuma M, Saiki Y, Kanda K, Akiyama M, Adachi O, Horii A, Saiki Y. Nanobubble technology to treat spinal cord ischemic injury. JTCVS OPEN 2020; 3:1-11. [PMID: 36003872 PMCID: PMC9390594 DOI: 10.1016/j.xjon.2020.07.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Revised: 07/09/2020] [Accepted: 07/20/2020] [Indexed: 11/29/2022]
Abstract
Background Spinal cord ischemic injury is a severe complication of aortic surgery. We hypothesized that cerebrospinal fluid (CSF) oxygenation with nanobubbles after reperfusion could ameliorate spinal cord ischemic injury. Methods Twenty white Japanese rabbits were categorized into 4 groups of 5 rabbits each: sham group, with balloon catheter insertion into the aorta; ischemia group, with spinal cord ischemic injury by abdominal aortic occlusion; nonoxygenated group, with nonoxygenated artificial CSF irrigation after spinal cord ischemic injury; and oxygenated group, with oxygenated artificial CSF irrigation after spinal cord ischemic injury. At 48 hours after spinal cord ischemic injury, the modified Tarlov score to reflect hind limb movement was evaluated. The spinal cord was histopathologically examined by counting anterior horn cells, and microarray and quantitative reverse-transcription polymerase chain reaction (qRT-PCR) analyses were performed. Results The oxygenated group showed improved neurologic function compared with the ischemia and nonoxygenated groups (P < .01 and P = .019, respectively). Anterior horn neuron prevention in the sham, nonoxygenated, and oxygenated groups was confirmed (mean modified Tarlov score: sham, 9.2 ± 1.9; nonoxygenated, 10.2 ± 2.2; oxygenated, 10.4 ± 2.2; ischemia, 2.7 ± 2.7). Microarray analysis identified 644 genes with twofold or greater increased signals between the ischemia and sham groups. Thirty-three genes related to inflammatory response were enriched among genes differentially expressed between the oxygenated and ischemia groups. Interleukin (IL)-6 and tumor necrosis factor (TNF) expression levels were significantly lower in the oxygenated group compared with the ischemia group, while qRT-PCR showed lower IL-6 and TNF expression levels in the oxygenated group compared with the ischemia group (P < .05). Conclusions CSF oxygenation with nanobubbles after reperfusion can ameliorate spinal cord ischemic injury and suppress inflammatory responses in the spinal cord.
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Tanaka A, Charlton-Ouw KM. Open thoracoabdominal aortic aneurysm repair in the endovascular era. ITALIAN JOURNAL OF VASCULAR AND ENDOVASCULAR SURGERY 2020. [DOI: 10.23736/s1824-4777.19.01428-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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Hua Y, Xu N, Ma T, Liu Y, Xu H, Lu Y. Anti-Inflammatory Effect of Lycopene on Experimental Spinal Cord Ischemia Injury via Cyclooxygenase-2 Suppression. Neuroimmunomodulation 2019; 26:84-92. [PMID: 30625493 DOI: 10.1159/000495466] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/20/2018] [Accepted: 11/14/2018] [Indexed: 11/19/2022] Open
Abstract
OBJECTIVE Spinal cord ischemia/reperfusion injury (SCII) is a devastating complication following thoracoabdominal aortic surgeries, often leading to severe neurological deficits. We sought to examine the effects of lycopene, a naturally existing carotenoid with anti-inflammatory properties, in the treatment against SCII. METHODS Rats were assigned into four treatment groups: Sham (sham operation), SCII (SCII-induction), LY25, and LY50 (lycopene treatment at 25 or 50 mg/kg following SCII induction, respectively). RESULTS Lycopene treatment improved the recovery of neurological functions following SCII and suppressed the neuronal cell death and neuroinflammation at 14 days after SCII. Furthermore, Western blot assay revealed that lycopene treatment attenuated the SCII-induced increase in the protein levels of cyclooxygenase-2 (COX-2), nuclear factor-κB, and activate protein-1, as well as the reduction of heme oxygenase-1. CONCLUSION Lycopene exerted neuroprotective functions in SCII and inhibited SCII-elicited neuroinflammation via COX-2 suppression.
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Affiliation(s)
- Ye Hua
- Department of Neurology, The Affiliated Wuxi No. 2 People's Hospital of Nanjing Medical University, Wuxi, China
| | - Nanfei Xu
- Department of Neurology, The Affiliated Wuxi No. 2 People's Hospital of Nanjing Medical University, Wuxi, China
| | - Tao Ma
- Department of Neurology, The Affiliated Wuxi No. 2 People's Hospital of Nanjing Medical University, Wuxi, China
| | - Yumin Liu
- Department of Neurology, The Affiliated Wuxi No. 2 People's Hospital of Nanjing Medical University, Wuxi, China
| | - Hong Xu
- Department of Neurology, The Affiliated Wuxi No. 2 People's Hospital of Nanjing Medical University, Wuxi, China
| | - Yunnan Lu
- Department of Neurology, The Affiliated Wuxi No. 2 People's Hospital of Nanjing Medical University, Wuxi, China,
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Choong AMTL, Wee IJY, Almond M, Muratani M, Kovari F, Russai R, Jenkins MP. A Systematic Review of the Use of Biochemical Markers in the Assessment of Spinal Cord Ischemia in Thoracoabdominal Aortic Aneurysm Repair. Vasc Endovascular Surg 2018; 53:230-241. [DOI: 10.1177/1538574418814612] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Introduction: Despite advances in perioperative critical care and surgical technique, spinal cord ischemia remains a devastating complication of thoracic and thoracoabdominal aortic aneurysm repair. Biochemical markers present in peripheral blood and cerebrospinal fluid (CSF) may be useful in assessing spinal cord injury. We systematically analyze and report the role of all reported biochemical markers that have been used in assessing and diagnosing spinal cord ischemia in thoracic and thoracoabdominal aortic aneurysm repair. Methods: Preferred Reporting Items for Systematic Reviews and Meta-Analysis guidelines were used for this review. Published literature was searched to identify all studies reporting on the use of biochemical markers in thoracoabdominal aortic aneurysm repair in the assessment of spinal cord ischemia. Marker-specific and patient-specific data were extracted from all studies and where possible, subgroup analysis was performed on marker-specific data sets. Results: Fourteen studies of 321 patients undergoing thoracic and thoracoabdominal aortic aneurysm repair were eligible for further analysis. Seven distinct biochemical markers were used in both CSF and blood samples: S100B proteins (S100B), neurone-specific enolase, lactate dehydrogenase, glial fibrillary acidic protein (GFAp), neurofilament triplet protein (NFL) and Tau protein, and glucose. There was substantial evidence demonstrating the heightened levels of S100, NFL, and GFAp in CSF in patients with spinal cord ischemia. There is however, wide variability in the correlation of the same 6 biochemical markers in peripheral blood and spinal cord ischemia. Conclusions: In patients with spinal cord injury, dramatic rises occur with S100B, NFL, and GFAp in CSF. However, further work is needed if biochemical markers are to impact on the future of thoracoabdominal aortic aneurysm repair.
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Affiliation(s)
- Andrew M. T. L. Choong
- SingVaSC, Singapore Vascular Surgical Collaborative, Singapore
- Cardiovascular Research Institute, National University of Singapore, Singapore
- Department of Surgery, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
- Division of Vascular Surgery, National University Heart Centre, Singapore
| | - Ian J. Y. Wee
- SingVaSC, Singapore Vascular Surgical Collaborative, Singapore
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Mark Almond
- SingVaSC, Singapore Vascular Surgical Collaborative, Singapore
| | - Masafumi Muratani
- SingVaSC, Singapore Vascular Surgical Collaborative, Singapore
- Department of Genome Biology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Ferenc Kovari
- SingVaSC, Singapore Vascular Surgical Collaborative, Singapore
- Department of Anaesthetics and Intensive Care, North Middlesex University Hospital, London, United Kingdom
| | - Rita Russai
- SingVaSC, Singapore Vascular Surgical Collaborative, Singapore
- Department of Anaesthetics, London North West Healthcare NHS Trust, Middlesex, United Kingdom
| | - Michael P. Jenkins
- Imperial Vascular Unit, St Mary’s Hospital, Imperial College Healthcare NHS Trust, London, United Kingdom
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Saiki Y, Watanabe K, Ito K, Kanda K, Takahashi G, Hayatsu Y, Yoshioka I, Motoyoshi N, Kawatsu S, Adachi O, Akiyama M, Kumagai K, Kawamoto S. Differential selective hypothermic intercostal artery perfusion: a new method to probe spinal cord perfusion during thoracoabdominal aortic aneurysm repair. Gen Thorac Cardiovasc Surg 2018; 67:180-186. [PMID: 30187260 DOI: 10.1007/s11748-018-1005-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2018] [Accepted: 08/29/2018] [Indexed: 10/28/2022]
Abstract
OBJECTIVE To prevent paraplegia in patients undergoing thoracoabdominal aortic aneurysm repair, the importance of preoperative identification of the Adamkiewicz artery and reconstruction of critical intercostal artery have been advocated. Conversely, significance of collateral network for spinal cord perfusion has been recognized. We invented a new system consisting of a direct monitoring of cerebrospinal fluid temperature (CSFT) and differential selective hypothermic intercostal artery perfusion (D-HIAP). METHODS After exposing a critical intercostal artery, a 10-mm prosthetic graft was anastomosed in an end to side fashion. A balloon-tipped catheter was inserted into the graft to perfuse with 15 °C blood. Neighboring intercostal arteries were also perfused in the same fashion. Serial monitoring of CSFT was performed. Between January 2011 and January 2015, D-HIAP was employed in 50 patients with Adamkiewicz artery that located within a reconstructed area. RESULTS Significant CSFT drop was recorded after initiation of D-HIAP in 42 (84%) patients. Of those, 34 (68%) patients showed significantly lowered CSFT with D-HIAP into a single critical intercostal artery. Perfusion into plural intercostal arteries was necessary for CSFT drop in 2 cases (4%), and plural intercostal artery perfusion further enhanced CSFT drop that had been modestly achieved by single intercostal artery perfusion in 6 cases (12%). Eight (16%) patients did not exhibit a significant drop in CSFT even when D-HIAP was employed for the critical and neighboring intercostal arteries. CONCLUSIONS The detection of a disparity in temperature between the intrathecal space and blood generated by D-HIAP revealed individual variability in CSFT changes, which may imply a complexity in spinal cord perfusion. Intraoperative D-HIAP may help to identify a major blood supply for spinal cord perfusion and underlying collateral network.
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Affiliation(s)
- Yoshikatsu Saiki
- Division of Cardiovascular Surgery, Tohoku University Graduate School of Medicine, 1-1 Seiryocho, Aoba-ku, Sendai, 980-8575, Japan.
| | - Koyu Watanabe
- Division of Cardiovascular Surgery, Tohoku University Graduate School of Medicine, 1-1 Seiryocho, Aoba-ku, Sendai, 980-8575, Japan
| | - Koki Ito
- Division of Cardiovascular Surgery, Tohoku University Graduate School of Medicine, 1-1 Seiryocho, Aoba-ku, Sendai, 980-8575, Japan
| | - Keisuke Kanda
- Division of Cardiovascular Surgery, Tohoku University Graduate School of Medicine, 1-1 Seiryocho, Aoba-ku, Sendai, 980-8575, Japan
| | - Goro Takahashi
- Division of Cardiovascular Surgery, Tohoku University Graduate School of Medicine, 1-1 Seiryocho, Aoba-ku, Sendai, 980-8575, Japan
| | - Yukihiro Hayatsu
- Division of Cardiovascular Surgery, Tohoku University Graduate School of Medicine, 1-1 Seiryocho, Aoba-ku, Sendai, 980-8575, Japan
| | - Ichiro Yoshioka
- Division of Cardiovascular Surgery, Tohoku University Graduate School of Medicine, 1-1 Seiryocho, Aoba-ku, Sendai, 980-8575, Japan
| | - Naotaka Motoyoshi
- Division of Cardiovascular Surgery, Tohoku University Graduate School of Medicine, 1-1 Seiryocho, Aoba-ku, Sendai, 980-8575, Japan
| | - Satoshi Kawatsu
- Division of Cardiovascular Surgery, Tohoku University Graduate School of Medicine, 1-1 Seiryocho, Aoba-ku, Sendai, 980-8575, Japan
| | - Osamu Adachi
- Division of Cardiovascular Surgery, Tohoku University Graduate School of Medicine, 1-1 Seiryocho, Aoba-ku, Sendai, 980-8575, Japan
| | - Masatoshi Akiyama
- Division of Cardiovascular Surgery, Tohoku University Graduate School of Medicine, 1-1 Seiryocho, Aoba-ku, Sendai, 980-8575, Japan
| | - Kiichiro Kumagai
- Division of Cardiovascular Surgery, Tohoku University Graduate School of Medicine, 1-1 Seiryocho, Aoba-ku, Sendai, 980-8575, Japan
| | - Shunsuke Kawamoto
- Division of Cardiovascular Surgery, Tohoku University Graduate School of Medicine, 1-1 Seiryocho, Aoba-ku, Sendai, 980-8575, Japan
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Kanda K, Adachi O, Kawatsu S, Sakatsume K, Kumagai K, Kawamoto S, Saiki Y. Oxygenation of the cerebrospinal fluid with artificial cerebrospinal fluid can ameliorate a spinal cord ischemic injury in a rabbit model. J Thorac Cardiovasc Surg 2016; 152:1401-1409. [DOI: 10.1016/j.jtcvs.2016.04.095] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/23/2015] [Revised: 03/28/2016] [Accepted: 04/05/2016] [Indexed: 11/30/2022]
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Nardone R, Pikija S, Mutzenbach JS, Seidl M, Leis S, Trinka E, Sellner J. Current and emerging treatment options for spinal cord ischemia. Drug Discov Today 2016; 21:1632-1641. [PMID: 27326910 DOI: 10.1016/j.drudis.2016.06.015] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2015] [Revised: 05/21/2016] [Accepted: 06/14/2016] [Indexed: 11/19/2022]
Abstract
Spinal cord infarction (SCI) is a rare but disabling disorder caused by a wide spectrum of conditions. Given the lack of randomized-controlled trials, contemporary treatment concepts are adapted from guidelines for cerebral ischemia, atherosclerotic vascular disease, and acute traumatic spinal cord injury. In addition, patients with SCI are at risk for several potentially life-threatening but preventable systemic and neurologic complications. Notably, there is emerging evidence from preclinical studies for the use of neuroprotection in acute ischemic injury of the spinal cord. In this review, we discuss the current state of the art for the therapy and prevention of SCI and highlight potential emerging treatment concepts awaiting translational adoption.
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Affiliation(s)
- Raffaele Nardone
- Department of Neurology, Christian Doppler Medical Center, Paracelsus Medical University, Salzburg, Austria; Spinal Cord Injury and Tissue Regeneration Center, Paracelsus Medical University, Salzburg, Austria; Department of Neurology, Franz Tappeiner Hospital, Merano, Italy
| | - Slaven Pikija
- Department of Neurology, Christian Doppler Medical Center, Paracelsus Medical University, Salzburg, Austria
| | - J Sebastian Mutzenbach
- Department of Neurology, Christian Doppler Medical Center, Paracelsus Medical University, Salzburg, Austria
| | - Martin Seidl
- Department of Neurology, Christian Doppler Medical Center, Paracelsus Medical University, Salzburg, Austria
| | - Stefan Leis
- Department of Neurology, Christian Doppler Medical Center, Paracelsus Medical University, Salzburg, Austria
| | - Eugen Trinka
- Department of Neurology, Christian Doppler Medical Center, Paracelsus Medical University, Salzburg, Austria; Spinal Cord Injury and Tissue Regeneration Center, Paracelsus Medical University, Salzburg, Austria
| | - Johann Sellner
- Department of Neurology, Christian Doppler Medical Center, Paracelsus Medical University, Salzburg, Austria; Department of Neurology, Klinikum rechts der Isar, Technische Universität München, Germany.
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Xu X, Li N, Zhu L, Zhou Y, Cheng H. Beneficial effects of local profound hypothermia and the possible mechanism after experimental spinal cord injury in rats. J Spinal Cord Med 2015; 39:220-8. [PMID: 26322652 PMCID: PMC5072505 DOI: 10.1179/2045772315y.0000000051] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
OBJECTIVE The primary focus of this study was to investigate the effects of local profound hypothermia and to explore the possible mechanism in adult rats with spinal cord injury. STUDY DESIGN AND METHODS Spinal cord injury models were established by placing aneurysm clips on T10. An epidural perfusion device was applied to maintain a steady temperature (18 °C) for 120 min with gradual rewarming to 37 °C Total hypothermic duration lasted up to about 170 min. The expression of axon regeneration inhibitors was tested by Western blot and real-time PCR. Luxol Fast Blue (LFB) stain and Bielschowsky silver stain were used to observe spinal cord morphology. Motor function of the hind limbs (BBB score) was monitored for 21 days. RESULTS The expressions of RhoA, ROCK-II, NG2, Neurocan, Brevican, and Nogo-A were downregulated by regional hypothermia (RH) after spinal cord injury. Subsequent observation showed that rats that had received RH had an alleviated demyelinating condition and a greater number of nerve fibers. Furthermore, the RH group achieved higher BBB scores than the spinal cord injury (SCI) group. CONCLUSIONS Recovery of hind limb function in rats can be promoted by local profound hypothermia; this may be caused by the suppression of axon regeneration inhibitors.
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Affiliation(s)
| | | | | | | | - Huilin Cheng
- Department of Neurosurgery, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, Jiangsu Province, China
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Panthee N, Ono M. Spinal cord injury following thoracic and thoracoabdominal aortic repairs. Asian Cardiovasc Thorac Ann 2015; 23:235-246. [DOI: 10.1177/0218492314548901] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/30/2023]
Abstract
Objective To discuss the currently available approaches to prevent spinal cord injury during thoracic and thoracoabdominal aortic repairs. Methods We carried out a PubMed search up to 2013 using the Medical Subject Headings: “aortic aneurysm/surgery” and “spinal cord ischemia”; “aortic aneurysm, thoracic/surgery” and “spinal cord ischemia”; “aneurysm/surgery” and “spinal cord ischemia/cerebrospinal fluid”; “aortic aneurysm/surgery” and “paraplegia”. All 190 original articles satisfying our inclusion criteria were analyzed for incidence, predictors, and other pertinent variables related to spinal cord injury, and we compared the results in recent publications with those in earlier reports. Results The mean age of the 38,491 patients was 65.3 ± 4.9 years. The overall incidence of paraplegia and/or paraparesis was 7.1% ± 6.1% (range 0%–32%). The incidence of spinal cord injury before 2000, from 2001 to 2007, and 2008–2013 was 9.0% ± 6.7%, 7.0% ± 6.1%, and 5.9% ± 5.2%, respectively ( p = 0.019). Various predictors of spinal cord injury were identified, extent of disease being the most common. Modification of surgical techniques, use of adjuncts, and better understanding of spinal cord perfusion physiology were attributed to the decrease in postoperative spinal cord injury in recent years. Conclusions Spinal cord injury after thoracic and thoracoabdominal aortic repair poses a real challenge to cardiovascular surgeons. However, with evolving surgical strategies, identification of predictors, and use of various adjuncts over the years, the incidence of spinal cord injury after thoracic/thoracoabdominal aortic repair has declined. Embracing a multimodality approach offers a good insight into combating this grave complication.
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Affiliation(s)
- Nirmal Panthee
- Department of Cardiac Surgery, University of Tokyo, Tokyo, Japan
| | - Minoru Ono
- Department of Cardiac Surgery, University of Tokyo, Tokyo, Japan
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Hayatsu Y, Kawamoto S, Matsunaga T, Haga Y, Saiki Y. Real-time monitoring of spinal cord blood flow with a novel sensor mounted on a cerebrospinal fluid drainage catheter in an animal model. J Thorac Cardiovasc Surg 2014; 148:1726-31. [DOI: 10.1016/j.jtcvs.2014.04.011] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/24/2013] [Revised: 03/28/2014] [Accepted: 04/04/2014] [Indexed: 11/30/2022]
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Anderson J, Nykamp M, Danielson L, Remund T, Kelly PW. A novel endovascular debranching technique using physician-assembled endografts for repair of thoracoabdominal aneurysms. J Vasc Surg 2014; 60:1177-1184. [PMID: 24997805 DOI: 10.1016/j.jvs.2014.05.090] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2014] [Accepted: 05/14/2014] [Indexed: 11/25/2022]
Abstract
OBJECTIVE The objective of this study was to demonstrate a technique that uses physician-assembled endografts to make use of the benefits of parallel grafts while also providing for circumferential seal and fixation in repair of thoracoabdominal aneurysms in inoperable patients. METHODS A single-center all-comers retrospective analysis of 14 patients was performed that looked at the early outcomes of patients treated for thoracoabdominal aneurysms. Three Crawford type II, four type III, four type IV, and three type V thoracoabdominal aneurysms were treated. Contrast material, fluoroscopy time, length of stay, clinical success, and technical success were measured. RESULTS There was no in-hospital, 30-day, or 6-month mortality. We found two type III endoleaks in the early design. One required coil embolization. Average volume of contrast material and average fluoroscopy time were 76.9 mL and 119.1 minutes, respectively. Average length of stay was 10.5 days, and average procedure time was 251.2 minutes. Clinical success was observed in 78.6% of patients to date, and technical success was observed in 85.7% of patients. CONCLUSIONS Short-term results show that this approach is safe. The device can be safely implanted, is off-the-shelf, and can treat each of the Crawford thoracoabdominal aneurysm types. Finally, the assembly of off-the-shelf components may shorten the regulatory path for this physician-assembled endograft.
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Affiliation(s)
- Joe Anderson
- Sanford School of Medicine, University of South Dakota, Sioux Falls, SDak
| | | | - Laura Danielson
- Sanford School of Medicine, University of South Dakota, Sioux Falls, SDak
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Li N, Tian L, Wu W, Lu H, Zhou Y, Xu X, Zhang X, Cheng H, Zhang L. Regional hypothermia inhibits spinal cord somatosensory-evoked potentials without neural damage in uninjured rats. J Neurotrauma 2013; 30:1325-33. [PMID: 22916828 DOI: 10.1089/neu.2012.2516] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Both the therapeutic effects of regional hypothermia (RH) and somatosensory-evoked potentials (SSEP) have been intensively studied; however, the in vivo relationship between the two remains unknown. The primary focus of the current study was to investigate the impact of RH on SSEP in uninjured rats, as well as the neural safety of RH on neuronal health. An epidural perfusion model was used to keep local temperature steady by adjusting perfusion speed at 30°C, 26°C, 22°C, and 18°C for 30 min, respectively. Total hypothermic duration lasted up to 3 h. Neural signals were recorded at the end of each hypothermic period, as well as before cooling and after spontaneous rewarming. In addition, the Basso, Beattie, and Bresnahan (BBB) Locomotor Rating Scale was used to evaluate the effects of RH pre- and post-operative, combined with hematoxylin and eosin (H&E) and Fluoro-Jade C (FJC) staining. The results showed a marked declining trend in SSEP amplitude, as well as a significant prolongation in latency only during profound hypothermia (18°C). The BBB scale remained consistent at 21 throughout the entire process, signifying that no motor function injury was caused by RH. In addition, H&E and FJC staining did not show obvious histological injury. These findings firmly support the conclusion that RH, specifically profound RH, inhibits spinal cord SSEP in both amplitude and latency without neural damage in uninjured rats.
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Affiliation(s)
- Ning Li
- Department of Neurosurgery, School of Medicine, Second Military Medical University (Shanghai) , Jinling Hospital, Nanjing, Jiangsu Province, People's Republic of China
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Awad H, Elgharably H, Popovich PG. Role of induced hypothermia in thoracoabdominal aortic aneurysm surgery. Ther Hypothermia Temp Manag 2012; 2:119-37. [PMID: 24716449 DOI: 10.1089/ther.2012.0009] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
For more than 50 years, hypothermia has been used in aortic surgery as a tool for neuroprotection. Hypothermia has been introduced into thoracoabdominal aortic aneurysm (TAAA) surgery by many cardiovascular centers to protect the body's organs, including the spinal cord. Numerous publications have shown that hypothermia can prevent immediate and delayed motor dysfunction after aortic cross-clamping. Here, we reviewed the historical application of hypothermia in aortic surgery, role of hypothermia in preclinical studies, cellular and molecular mechanisms by which hypothermia confers neuroprotection, and the role of systemic and regional hypothermia in clinical protocols to reduce and/or eliminate the devastating consequences of ischemic spinal cord injury after TAAA repair.
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Affiliation(s)
- Hamdy Awad
- 1 Department of Anesthesiology, Wexner Medical Center at The Ohio State University , Columbus, Ohio
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Markatis F, Petrosyan A, Abdulamit T, Bergeron P. Hybrid Repair With Antegrade Visceral Artery Debranching: The Preferred Treatment Option for Thoracoabdominal Aneurysms in High-Risk Patients. J Endovasc Ther 2012; 19:356-62. [DOI: 10.1583/11-3735mr.1] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Piazza M, Ricotta JJ. Open Surgical Repair of Thoracoabdominal Aortic Aneurysms. Ann Vasc Surg 2012; 26:600-5. [DOI: 10.1016/j.avsg.2011.11.002] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2011] [Accepted: 11/07/2011] [Indexed: 11/27/2022]
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Current strategies for spinal cord protection during thoracic and thoracoabdominal aortic aneurysm repair. Gen Thorac Cardiovasc Surg 2011; 59:155-63. [DOI: 10.1007/s11748-010-0705-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2010] [Accepted: 08/30/2010] [Indexed: 11/26/2022]
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