Nocturnal angina pectoris
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor-In-Chief: Cafer Zorkun, M.D., Ph.D. [2]
Overview
One of the clinical subsets of angina [1] is described below.
Nocturnal Angina Pectoris
In clinical practice, two types of nocturnal angina are observed.
- Some patients experience angina within an hour or two after sleeping.
- The mechanism of angina in this group of patients is likely to be an increase in venous return and hence increased intra cardiac volume with a resulting increase in myocardial oxygen requirements.
- Other group of patients with nocturnal angina experience chest discomfort much later, in the early hours of the morning.
- In this group of patients, a primary reduction in coronary blood flow owing to increased coronary vascular tone, more likely related to different stages of sleep, has been postulated as the potential underlying mechanism.
References
- ↑ Braunwald, Eugene (2003). Primary Cardiology. Saunders. ISBN 0-7216-9444-6. Unknown parameter
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