Eleven studies describing sinoatrial (SA) nodal, atrioventricular (AV) nodal or infra-Hisian conduction parameters in the setting of cocaine use were found. Fourteen studies and two case series ...

Patients with symptoms, signs, ECG, or chest radiograph suggestive of pulmonary hypertension should undergo two-dimensional echocardiography with Doppler flow. Echocardiography is the most useful ...