Prevalencia de trastornos de conducción eléctrica tras el implante percutáneo transcatéter de válvula aórtica. Servicio de cardiología. Hospital Luis Vernaza. 2020 al 2022.

Abstract

Objective: Identify the prevalence of cardiac conduction disorders in patients undergoing transcatheter aortic valve implantation. Methodology and results: This is a descriptive, retrospective study that included all patients diagnosed with aortic stenosis from 2020 to 2022, with a total of 65 patients registered in the Luis Vernaza Hospital system. Age, sex, associated risk factors, procedure performed, type of valve prosthesis implanted, post-procedure cardiac rhythm, definitive pacemaker implantation and mortality were considered. Conclusion: The prevalence of electrical conduction disorders on patients undergoing TAVI was 9% , the disorders found were left bundle branch block (14%), complete AV block (14%), and nonspecific ventricular repolarization disorders (14%). With the self-expandable valve, 14% of patients required definitive pacemaker, and 7% with the balloon-expanded valve. The selfexpandable valve had 14% of conduction anomalies, while the balloon-inflated valve had 7%. Hypertension was the most common risk factor, together with advanced age, being among 79% of the individuals, 36% of the patients had left ventricular hypertrophy as a background. Mortality was 0% in patients who underwent TAVI; patients who received valve replacement by conventional surgery had 6%.