hemodynamics
Pronunciation: hee-moh-dy-NAM-iks
The study of blood flow dynamics and pressures within the cardiovascular system.
Full Definition
Hemodynamics encompasses the physical principles governing blood flow, including pressure, flow rate, resistance, and the relationship between these variables in the cardiovascular system. In cardiovascular research, hemodynamic assessments provide crucial information about cardiac function, vascular resistance, and overall circulatory status. Hemodynamic measurements include cardiac output, stroke volume, systemic vascular resistance, pulmonary artery pressure, and intracardiac pressures obtained through various invasive and non-invasive methods. These parameters serve as important endpoints in heart failure trials, device studies, and pharmacological interventions.
Usage
Usage note: Use 'hemodynamic' as an adjective (hemodynamic assessment) and 'hemodynamics' as a noun.
In Context
- "Invasive hemodynamics revealed elevated pulmonary capillary wedge pressure consistent with heart failure." — Diagnostic findings
- "The study protocol required hemodynamic stability for at least 24 hours before randomization." — Inclusion criteria