septal bounce
An abnormal pattern of interventricular septal motion characterized by early diastolic leftward movement toward the left ventricle.
Full Definition
Septal bounce is an echocardiographic finding characterized by abnormal interventricular septal motion during early diastole, where the septum moves rapidly toward the left ventricular cavity. This phenomenon typically occurs in patients with right heart volume overload, constrictive pericarditis, or restrictive cardiomyopathy. The abnormal septal motion reflects altered ventricular interdependence and abnormal filling patterns. On echocardiography, septal bounce appears as a characteristic 'flattening and bouncing' motion of the interventricular septum during diastole. This finding is particularly important in distinguishing constrictive pericarditis from restrictive cardiomyopathy and in evaluating patients with suspected right heart dysfunction.
Usage
Usage note: Should be distinguished from other abnormal septal motion patterns in clinical descriptions.
In Context
- "Prominent septal bounce was observed, consistent with constrictive physiology." — Echocardiogram report
- "The presence of septal bounce helped differentiate constrictive pericarditis from restrictive cardiomyopathy." — Clinical correlation note