Vai trò siêu âm tim qua thực quản trong phẫu thuật sửa chữa tứ chứng Fallot

Abstract

Objecties:Transesophageal echocardiography (TEE) is applied currently during surgical repair of many congenital heart defects, including tetralogy of Fallot (ToF). It plays an important role in assessment of the residual anatomical lesions, functional and hemodynamic status after weaning from bypass as well as planning the management strategies in ICU.1 Methods: This study focuses on the efficacity and reliability of intraoperative TEE during ToF repair. We review our series of 268 ToF patients and their final postbypass, full detailed TEE report with investigation to comparison to the results of post recovery (predischarge) transthoracic echocardiography (TTE) Results: Both postbypass and postrecovery echocardiographic examinations included measurements of right ventricular outflow tract (RVOT) the degree of pulmonary valvar insuficiency, and color Doppler interrogation of the ventricular septum for residual defects. The RVOT peak gradient did not change significantly. There also was no change in the degree of pulmonary insufficiency and tricuspid rergurgitation between two methods. No significant large residual ASD or VSD is found post-operatively after having screened by intraoperative TEE. Conclusions: Intraoperative TEE after ToF repair is a reliable tool for assessing the anatomically surgical repair of ToF and should be indicated routinely in clinical practice.