• Yongchang Shi, Chengchao Zuo, Yiwen Zhang, Chao Zhou, Fengjiao Zhang, and Xuelian Zhao.
• Department of Anesthesia, the Fourth hospital of Hebei Medical University, Shijiazhuang, PR China.
• Medicine (Baltimore). 2024 Mar 1; 103 (9): e37199e37199.

BackgroundThe goal of anesthesia in patients with hypertrophic obstructive cardiomyopathy (HOCM) is to reduce the risk of left ventricular outflow tract obstruction triggered by anesthetics. Remimazolam is a newly developed anesthetic that has been reported to have superior hemodynamic stability. There have been no reports on the completion of non-cardiac surgery with remimazolam in patients with HOCM.MethodsHere we report the case of a 49-year-old man diagnosed with hypertrophic obstructive cardiomyopathy who underwent resection of colon cancer with remimazolam and remifentanil anesthesia. A bolus 0.3 mg/kg remimazolam was administered for anesthesia induction, and then adjusted to 2 mg/kg/h to maintain anesthesia. Set the pain threshold index to 50 to auto-control the infusion speed of remifentanil.ResultsNo hypotension occurred during anesthesia, and norepinephrine was not administered. After conversion to open surgery, the patient's blood pressure elevated and reduced with urapidil and esmolol.ConclusionIn this patient with HOCM, remimazolam and remifentanil provided adequate anesthesia for induction and maintenance to complete the right hemicolectomy.Copyright © 2024 the Author(s). Published by Wolters Kluwer Health, Inc.

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