Ventricular Fibrillatory Arrest: A Safe Option in Robotic Totally Endoscopic Intracardiac Surgery

Moderate hypothermic ventricular fibrillatory arrest during heart surgery is an alternative to cardioplegic arrest in selected patients. We reviewed our experience using a ventricular fibrillatory arrest technique in robotic totally endoscopic intracardiac surgery.From February 2014 through July 2022, 128 patients who underwent robotic totally endoscopic intracardiac surgical procedures performed using moderate hypothermic ventricular fibrillatory arrest were reviewed. Patients were chosen based on the risk of aortic manipulation, complexity of the procedure, grade of aortic valve insufficiency and comorbidities, including history of prior cardiac surgery and peripheral vascular disease.Patients were a mean age of 65 ± 14 years, and the mean The Society of Thoracic Surgeons score was 2.7 ± 2.9. Fourteen patients (11%) had a history of previous cardiac surgery. The intracardiac procedures were mitral valve surgery in 84 patients (66%), isolated cryomaze procedure in 27 (21%), and other in 17 (13%). The mean ventricular fibrillatory arrest time was 79 ± 26 minutes, and the mean cardiopulmonary bypass time was 174 ± 49 minutes. There was no conversion to sternotomy. Seven patients (5.5%) required inotropic support, and 2 patients (1.6%) needed an intra-aortic balloon pump. There was no incidence of postoperative stroke or clinical myocardial infarction. The mean hospital and intensive care unit lengths of stay were 3.1 ± 1.7 and 1.4 ± 0.7 days, respectively. One death (0.78%) occurred due to respiratory failure.Moderate hypothermic ventricular fibrillatory arrest in robotic intracardiac surgery may be a safe and effective alternative in selected patients.