Argentine Registry of Transesophageal Echocardiography

Background: There is currently no data regarding the utilization of transesophageal echocardiography in Argentina.Objective: The main purpose of this study was to evaluate the complication rate of transesophageal echocardiography inour country. Other objectives were to identify the characteristics of the laboratories, the operators’ training level, the rateof sedation and/or anesthesia and the main reasons for its request, and to analyze the suitability of the indications and thecontribution of the method to the clinical management of patients.Methods: A prospective, multicenter registry was conducted of all the transesophageal echocardiographies performed in 46centers in Argentina between November 2016 and September 2018.Results: A total of 2,562 transesophageal echocardiograms were analyzed. Patients’ mean age was 61.4 (±16) years and 61%were men. Mean study duration was 14.5 minutes (±11). Ambulatory echocardiograms constituted 50.5% of cases. The rateof sedation was 28.7% and 8.4% were performed under anesthesia. The most frequent indications were: endocarditis 22.7%,embolic source 21.5%, heart valve disease 20.3% and atrial fibrillation/atrial flutter 17.2%. Minor complications were registeredin 30 cases (1.17%) and respiratory or cardiovascular complications in 25 studies (0.98%). There was 1 case of gastricmucosal lesion (0.039%) without perforation. Clinically significant findings were reported in 1,296 studies (50.6%), additionalinformation to transthoracic echocardiography was provided in 1,600 cases (62.5%), unsuspected findings were described in282 studies (11%), and 82.7% of the studies had an adequate indication.Conclusions: This is the first multicenter registry on transesophageal echocardiography in our country. The results highlighta high rate of adequate indication, a considerable diagnostic yield and low complication rate. Introducción: No disponemos de datos nacionales que informen la realidad del uso de ecocardiograma transesofágico (ETE) en nuestro país. Objetivos: El objetivo principal fue evaluar la tasa de complicaciones del ETE en centros de nuestro país. Objetivos secundarios: relevar características de los laboratorios, nivel de formación de los operadores, tasa de uso de sedación y/o anestesia, identificar los principales motivos de solicitud y analizar la pertinencia de las indicaciones y el aporte del método al manejo clínico del paciente. Método: Registro prospectivo, multicéntrico, de todos los ETE realizados en 46 centros