Successful Management of Intraoperative Cardiac Arrest in a Patient With Undiagnosed Hypertrophic Cardiomyopathy.

Intraoperative cardiac arrest presents a significant challenge in surgical settings, particularly in patients with undiagnosed cardiac conditions. This report details the case of a 62-year-old male patient who experienced cardiac arrest during elective laparoscopic cholecystectomy, attributed to previously undiagnosed hypertrophic cardiomyopathy (HCM). The patient exhibited no prior cardiac symptoms and was assessed as low risk preoperatively. Following prompt cardiopulmonary resuscitation (CPR) and defibrillation, return of spontaneous circulation (ROSC) was achieved after approximately 10 minutes. Post-resuscitation, echocardiography confirmed significant left ventricular hypertrophy, leading to a new diagnosis of HCM. This case emphasizes the necessity of thorough cardiovascular evaluation in high-risk surgical patients and outlines effective management strategies for intraoperative emergencies.