Transient severe left ventricular diastolic dysfunction during intraoperative transesophageal echocardiography - A case report

ABSTRACT

A 55-year-old man with significant lesion of left anterior descending artery and left ventricular systolic dysfunction, became candidate for coronary artery bypass grafts surgery. Intraoperative transesophageal echocardiography [TEE] was done for evaluation of severity of mitral regurgitation. During surgery, suddenly systolic blood pressure dropped to 50 mmHg and lasted for 2 minutes and grade III left ventricular [LV] diastolic dysfunction occurred. After restoring blood pressure to 110/60 mmHg, LV diastolic pattern returned to baseline pattern. The decreased coronary perfusion pressure and its effect on diastolic function may be responsible for this pattern of diastolic dysfunction