Study on left ventricular function after off-pump coronary artery bypass with transesophageal echocardiography / 中华超声影像学杂志

ABSTRACT

Objective To evaluate the impact of the off -pump coronary artery bypass (OPCAB) on left ventricular(LV) function with transesophageal echocardiography(TEE). Methods Blood flow velocities of pulmonary vein (PV) and mitral valve (MV) were performed in 21 patients with coronary heart disease and myocardial infarction two weeks pre-OPCAB, and the left ventricular SV, CO and LVEF were measured by biplane Simpson′s method, the data were compared with the results observed one month post-OPCAB. Results The peak flow velocities of PV had significant difference between pre- and post-OPCAB(P