coronary perfusion pressure
Also written as: CPP — Coronary Perfusion Pressure
The pressure gradient driving blood flow through coronary vessels, calculated as the difference between aortic diastolic pressure and ventricular end-diastolic pressure.
Full Definition
Coronary perfusion pressure represents the driving force for coronary blood flow, defined as the pressure difference between the aortic root (during diastole when coronary flow is maximal) and the left ventricular end-diastolic pressure or right atrial pressure. This parameter is crucial during interventional procedures as it determines the adequacy of coronary circulation, particularly during balloon inflation when antegrade flow is temporarily interrupted. Coronary perfusion pressure can be maintained during prolonged balloon inflations through perfusion balloons or hemodynamic support devices. Monitoring coronary perfusion pressure is essential in high-risk interventions and helps guide the duration of balloon inflations and need for circulatory support.
Usage
Usage note: Often abbreviated as CPP in hemodynamic documentation. Include specific pressure values when documenting.
In Context
- "Coronary perfusion pressure was maintained above 40 mmHg during prolonged balloon inflation with hemodynamic support." — High-risk PCI procedure note
- "The patient tolerated the intervention well with adequate coronary perfusion pressure throughout the procedure." — Hemodynamic monitoring report