Reduced Myocardial Contractility Assessed by Tissue Doppler Echocardiography Is Associated with Increased Risk During Adrenal Surgery of Patients with Pheochromocytoma: Report of a Preliminary Study

Patients with pheochromocytoma may have depressed myocardial contractility detected by tissue Doppler echocardiography despite a normal standard echocardiogram. A systolic SR less than 2 s−1 was associated with an increased risk of perioperative collapse.