Evaluation of tricuspid and pulmonary valves using epicardial and transesophageal echocardiography--a comparative study.

Objective: To compare measurements obtained by transesophageal echocardiography (TEE) and epicardial echocardiography (EE) for evaluation of the tricuspid valve (TV) and pulmonary valve (PV).

Design: Prospective observational.

Setting: University hospital.

The role of epicardial echocardiography in the measurement of transvalvular flow velocities during aortic valve replacement.

Objective: The purpose of this study was to compare transvalvular flow velocities obtained by transesophageal echocardiography and epicardial echocardiography (EE) during aortic valve replacement (AVR).

Design: Prospective observational study.

Setting: University hospital.