General Anesthetic Management of a Patient With Hypertrophic Cardiomyopathy for Oral Surgery: Did Digitalis Contribute to Bradycardia?

• DOI: 10.2344/anpr-65-03-12
• Publication Date: 2018-09-20T21:21:11Z
• Authors: Aiji Sato(Boku); Maki Morita; MinHye So; Tetsuya Tamura; Fumiaki Sano; Yasuyuki Shibuya; Jun Harada; Kazuya Sobue
• Keywords: Male; Cardiotonic Agents; Dopamine; Oral Surgical Procedures; Anesthesia, General; Cardiomyopathy, Hypertrophic; 3. Good health; Electrocardiography; 03 medical and health sciences; Treatment Outcome; 0302 clinical medicine; Heart Rate; Medigoxin; Risk Factors; Monitoring, Intraoperative; Bradycardia; Humans; Aged

Stabilization of circulatory dynamics is a critical issue in the anesthetic management of patients with hypertrophic cardiomyopathy (HCM). In this report, we managed general anesthesia for a 74-year-old male patient with nonobstructive HCM who developed circulatory instability intraoperatively. Severe bradycardia measuring 35 beats/min and hypotension measuring 78 mm Hg systolic were observed during surgery. Using stroke volume variation and stroke volume from the FloTrac as indices, successful circulatory management was performed with dopamine. The hypotension and bradycardia were thought to be the result of methyldigoxin and possibly associated with our perioperative management. Cardiology consult should have been obtained. We demonstrated that the FloTrac can be beneficial in diagnosing and managing cardiovascular instability and administration of dopamine in the anesthetic management of nonobstructive HCM patients.