Fig. 2From: Conventional cardiopulmonary resuscitation-induced refractory cardiac arrest due to latent left ventricular outflow tract obstruction due to a sigmoid septum: a case reportProvocation with dobutamine infusion (30 μg/kg per minute) during Doppler echocardiography on day 26. Echocardiography reveals a left ventricular outflow gradient of 236 mmHg, which confirms a diagnosis of latent left ventricular outflow tract obstruction. LVOT left ventricular outflow tractBack to article page