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ORIGINAL ARTICLE
Year : 2019  |  Volume : 5  |  Issue : 4  |  Page : 234-240

Selective retrograde cerebral cooling in complete cerebral circulatory arrest


1 Voyage Biomedical Inc., Berkeley, CA, United States
2 Voyage Biomedical Inc., Berkeley, CA, United States; Undergraduate Medical Education, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
3 Voyage Biomedical Inc., Berkeley, CA, United States; Department of Surgery, Division of General Surgery, University of Calgary, Calgary, AB, Canada
4 Voyage Biomedical Inc., Berkeley, CA, United States; Section of Cardiac Surgery, Libin Cardiovascular Institute of Alberta, University of Calgary, Calgary, AB, Canada

Correspondence Address:
Ms. Bridget C Vaughan
Voyage Biomedical Inc., Berkeley, CA
United States
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/bc.bc_60_19

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BACKGROUND AND PURPOSE: Cerebral hypothermia is a known neuroprotectant with promising applications in the treatment of ischemic events. Although systemic cooling is standard in post-cardiac arrest care, the deleterious effects of whole-body cooling have precluded it from translation into a viable treatment option for acute ischemic stroke (AIS). Selective cerebral cooling has been proposed as a method to minimize these risks while granting the neuroprotection of therapeutic hypothermia in AIS. METHODS: In a porcine model (n = 3), the efficacy of selective retrograde cerebral cooling through the internal jugular vein was evaluated in the setting of complete cerebral circulatory arrest. Furthermore, a novel endovascular device and cooling system enabling selective retrograde cerebral cooling were studied in a normothermic perfused cadaver. RESULTS AND CONCLUSION: Neurologic assessment of animals receiving this therapy reflected substantial neuroprotection in animals undergoing both 15 min and 30 min of otherwise catastrophic complete cerebral circulatory arrest. The novel endovascular device and cooling system were validated in human anatomy, demonstrating successful cerebral cooling, and feasibility of this mechanism of selective retrograde cerebral cooling.


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