Fig. 3From: Intraoperative cardiac arrest caused by unexpected vasospastic angina requiring prolonged resuscitation using extracorporeal membrane oxygenation: a case reportParameter fluctuations during resuscitation. Following an abrupt ST-T wave elevation, the electrocardiogram indicated ventricular fibrillation leading to cardiac arrest a The laparoscopic procedure and general anesthesia were halted, and standard cardiopulmonary resuscitation was initiated b The patient state index (PSi) value was elevated after the commencement of veno-arterial extracorporeal membrane oxygenation c Spontaneous circulation was restored 77 min post-cardiac arrest upon the fifth defibrillation attempt d Resumption of anesthetic agents resulted in a decline in the PSi value e ABP, arterial blood pressureBack to article page