Relación entre el tiempo de pinzamiento de la aorta y la frecuencia de fibrilación auricular de nueva aparición en los pacientes sometidos a reemplazo valvular aórtico en el Hospital José Carrasco Arteaga desde el año 2016 al 2022

Abstract

Introduction: Postoperative atrial fibrillation (POAF) is a common and costly complication of cardiac surgery. It usually occurs between the second and fourth postoperative day. Determination of the relationship between aortic pressure retention time (APT) and the incidence of POAF in patients after aortic valve replacement is essential. Objective: To analyze the relationship between intraoperative APT and the occurrence of new-onset atrial fibrillation in patients undergoing this type of surgery. Methods: A retrospective cohort study of 117 patients divided into two groups according to APT was performed at the José Carrasco Arteaga Hospital. Sociodemographic and clinical data were collected: diabetes mellitus, hypertension, heart disease, COPD, CKD, toxic habits, postoperative amiodarone use, age, sex, weight, height, BMI, incidence of POAF and APT (in minutes). Descriptive and analytical statistical analysis was performed using cross-tabulations (Chi-Square) and relative risk (RR). Results: An APT longer than 90 minutes was significantly associated with an increased frequency of POAF. The 47.1% of patients with APT 60-89 minutes and 52.9% of those with APT 90-119 minutes had this complication (3.121 with 95% (CI): [1.830, 5.322].; p