Coronary perfusion pressure
Coronary Perfusion Pressure
Coronary perfusion pressure (CPP), pronounced as /kəˈrɒnəri pərˈfjuːʒən ˈprɛʃər/, is a term used in medicine and cardiology to describe the pressure gradient that drives the blood flow to the myocardium, or the heart muscle. The term is derived from the Latin coronarius meaning "crowning" and the Greek perfusion meaning "to pour over or through".
Definition
Coronary perfusion pressure is the difference between the aortic pressure and the right atrial pressure during the diastole phase of the cardiac cycle. It is a crucial factor in determining the blood flow to the heart muscle.
Importance
The CPP is vital in maintaining adequate blood flow to the heart muscle, especially during instances of cardiac arrest. It is used as a predictor of successful resuscitation in patients with cardiac arrest. A CPP of at least 15 mmHg is generally considered necessary to achieve successful resuscitation.
Related Terms
- Myocardial perfusion: The blood flow to the heart muscle.
- Diastolic pressure: The pressure in the arteries when the heart rests between beats.
- Aortic pressure: The pressure exerted by the blood on the walls of the aorta.
- Right atrial pressure: The pressure in the right atrium of the heart.
See Also
External links
- Medical encyclopedia article on Coronary perfusion pressure
- Wikipedia's article - Coronary perfusion pressure
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