Texas Heart Institute Heart Sounds Series

Auscultation of murmurs associated with hypertrophic obstructive cardiomyopathy (HOCM) and LV outlet obstruction. Copyright 2011 by the Texas Heart Institute at St. Luke's Episcopal Hospital.

Auscultation of a diastolic sound referred to as tumor plop, resulting from a left atrial myxoma. The sound arises from obstruction to ventricular in-flow. Copyright 2011 by the Texas Heart Institute at St. Luke's Episcopal Hospital.

The early diastolic sound of pericardial constriction occurs slightly earlier than the average third heart sound. Its frequency is somewhat higher, allowing you to hear it throughout the precordium using the diaphragm and the bell. Common causes of pericardial constriction include prior cardiac surgery and uremic pericarditis. Copyright 2011 by the Texas Heart Institute at St. Luke's Episcopal Hospital.

Auscultation of the fixed splitting of the second heart sound, a finding on physical examination very specific for atrial septal defect. Copyright 2010 by the Texas Heart Institute at St. Luke's Episcopal Hospital.

Auscultation of the wide splitting of the second heart sound, commonly caused by right bundle branch block (RBBB). Copyright 2010 by the Texas Heart Institute at St. Luke's Episcopal Hospital.