ventricular interdependence
The physiological interaction between right and left ventricles through shared septal wall and pericardial space.
Full Definition
Ventricular interdependence describes the complex hemodynamic relationship between the right and left ventricles, mediated through the interventricular septum and constraining pericardium. This interaction becomes clinically significant in conditions such as pulmonary hypertension, pericardial disease, or acute right heart failure, where changes in one ventricle directly affect the filling and function of the other. The phenomenon explains why acute right heart dilation can impair left ventricular filling and reduce cardiac output. Understanding ventricular interdependence is crucial for managing conditions affecting ventricular-ventricular interactions.
Usage
Usage note: Explain the mechanism (septal shift, pericardial constraint) when describing clinically.
In Context
- "The echocardiogram demonstrated ventricular interdependence with septal shift due to acute pulmonary embolism." — Emergency echocardiography report
- "Ventricular interdependence explained the patient's reduced cardiac output despite preserved left ventricular systolic function." — Heart failure consultation