Intraoperative Provocative Testing in Patients with Obstructive Hypertrophic Cardiomyopathy Undergoing Septal Myectomy

Resolution of left ventricular outflow tract (LVOT) obstruction predicts symptom relief postmyectomy. Intraoperative measurement of LVOT gradients thus is essential for surgical guidance. We hypothesized that (1) hypertrophic cardiomyopathy patients have lower LVOT gradients when measured intraoperatively with transesophageal echocardiography (TEE) compared with preoperative measurements with transthoracic echocardiography (TTE) and that (2) intraoperative provocative testing can help evaluate the adequacy of surgical resection.
Source: Journal of the American Society of Echocardiography - Category: Cardiology Authors: Source Type: research