• J. Cardiothorac. Vasc. Anesth. · Feb 2021

    Continuation of Angiotensin-Converting Enzyme Inhibitors on the Day of Surgery Is Not Associated With Increased Risk of Hypotension Upon Induction of General Anesthesia in Elective Noncardiac Surgeries.

    • Uzung Yoon, Adam Setren, Alexander Chen, Tho Nguyen, Marc Torjman, and Tara Kennedy.
    • Department of Anesthesiology, Thomas Jefferson University, Philadelphia, PA. Electronic address: uzyoon@gmail.com.
    • J. Cardiothorac. Vasc. Anesth. 2021 Feb 1; 35 (2): 508-513.

    ObjectiveThe aim of this study was to find out whether the preoperative continuation of angiotensin-converting enzyme inhibitor (ACE-I) or angiotensin II receptor blocker (ARB) treatment is associated with intraoperative hypotension immediately after induction of general anesthesia in elective noncardiac surgeries.DesignRetrospective cohort study.SettingSingle institutional university hospital.ParticipantsFour hundred patients who underwent elective noncardiac surgery under general anesthesia, with ACE-I or ARB on their list of preoperative home medications, were included.InterventionPreoperative ACE-I and ARB use was evaluated, and patients were divided into an ACE-I/ARB group versus non-ACE-I/ARB group.MeasurementsThe primary outcome measure was intraoperative hypotension after induction of general anesthesia. The secondary outcome measure was preoperative medication use, medications taken the morning of surgery, induction medication and dosage, and vasopressor medication use during induction.ResultsThree hundred forty-nine patients were included for final analysis. The mean admission American Society of Anesthesiologists status was 2.7 ± 0.5, age 65 ± 11 years, and body mass index 31 ± 6.9 kg/m2. There were no statistically significant changes between the no ACE-I/ARB group and the ACE-I/ARB group in systolic blood pressure (p = 0.853), diastolic blood pressure (p = 0.357), and heart rate (p = 0.220) change over the 15 minutes. There was no statistical difference in induction medication dose (propofol, fentanyl, and rocuronium) and pressor use (p = 0.137) for hypotension between the 2 groups. Statistically significant hypotension (p < 0.001) occurred in both groups equally over 15 minutes.ConclusionContinuation of ACE-I/ARB on the day of surgery was not associated with increased risk of intraoperative hypotension upon induction and within 15 minutes of general anesthesia in elective noncardiac surgeries.Copyright © 2020 Elsevier Inc. All rights reserved.

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