1. Perioperative Stroke Following Implantation of Left Ventricular Assist Device: A Retrospective Cohort Study.
- Author
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Yen P, Sun T, Farmer J, Besola L, Cheung A, Peng D, Chiu W, Bashir J, Johnston D, Field T, and Flexman A
- Subjects
- Humans, Retrospective Studies, Male, Female, Middle Aged, Postoperative Complications epidemiology, Postoperative Complications etiology, Aged, Cohort Studies, Adult, Risk Factors, Heart Failure surgery, Heart Failure epidemiology, Perioperative Period, Heart-Assist Devices adverse effects, Stroke epidemiology, Stroke etiology
- Abstract
Objectives: Stroke is common following left ventricular assist device (LVAD) implantation, although comprehensive data on perioperative strokes in this uncommon population is lacking. The current study aim was to characterize the presentation, features, and outcomes of perioperative cerebrovascular ischemia post-LVAD implantation at the authors' institution., Design: Single-center retrospective cohort., Setting: St. Paul's Hospital, Vancouver, British Columbia, Canada., Participants: Adult patients who received an LVAD between January 1, 2008, and August 31, 2021, were included, and those who died intraoperatively or underwent a concurrent cardiac surgical procedure were excluded., Interventions: Data on demographics, comorbidities, stroke risk factors and characteristics, management, and outcomes (transplant, explant, death with LVAD in situ) were extracted., Measurements and Main Results: After exclusions, 172 adult patients who underwent LVAD implantation during the study period were included and analyzed. The rate of perioperative stroke was 12.8% (22/172). Of these, 72.7% (16/22) had a stroke occur within 7 days of surgery, and 86.4% (19/22) had a primarily ischemic (v hemorrhagic) event. A total of 68.2% (15/22) were intubated, sedated, or recently extubated at symptom onset, complicating diagnosis. All were managed supportively or palliated without specific stroke intervention. Patients who experienced a perioperative stroke had a significantly lower cumulative incidence of survival to cardiac transplantation and a significantly higher cumulative incidence of dying with their device in situ., Conclusions: LVAD patients carry a high risk of perioperative stroke. They experience delayed recognition and diagnosis, limited intervention, and poor outcomes. Frequent neurological assessment and a low threshold for neuroimaging are prudent., Competing Interests: Declaration of competing interest The authors declare the following financial interests and/or personal relationships that may be considered potential competing interests: Anson Cheung is a consultant and speaker for Medtronic and Abbott. Wynne Chiu has received a grant and speaker honoraria from Abbott Canada. Thalia Field has received consulting fees from HLS Therapeutics, Roche Canada, and AstraZeneca (and in-kind study medication from Bayer Canada); has served as an expert witness for the Canadian Medical Protective Association; and is a board member of DESTINE Health. Alana Flexman is supported by Michael Smith Research BC (Vancouver, BC, Canada) and receives consultant fees from UpToDate and research support from Eisai, Inc. She is an Editorial Board member of the Journal of Neurosurgical Anesthesiology. No other conflicts of interest among the authors exist that would influence the content of this manuscript., (Copyright © 2024 The Author(s). Published by Elsevier Inc. All rights reserved.)
- Published
- 2025
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