Hemodynamics
Pronunciation: hee-moh-dy-NAM-iks
The study of blood flow patterns, pressures, and circulation within the cardiovascular system.
Full Definition
Hemodynamics refers to the physical principles governing blood circulation, including pressure gradients, flow patterns, resistance, and cardiac output. In congenital cardiology, understanding hemodynamics is crucial for assessing the physiological impact of structural heart defects and determining appropriate interventions. Hemodynamic studies often involve cardiac catheterization to measure pressures in various cardiac chambers and calculate shunt fractions. The term encompasses both normal circulatory physiology and pathological alterations caused by congenital heart disease.
Usage
Usage note: Use as singular noun; hemodynamic serves as the adjective form.
In Context
- "Cardiac catheterization revealed favorable hemodynamics for Fontan completion." — pre-operative assessment
- "Understanding hemodynamics is essential for managing patients with complex congenital heart disease." — educational material