Respiratory Sinus Arrhythmia

A naturally occurring variation in heart rate that occurs during a BREATHING cycle, where the time between heartbeats is shortened during inspiration and prolonged during expiration. It is not the same as SINUS ARRHYTHMIA, the disorder.

Year introduced: 2015

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Tree Number(s): G09.330.380.500.715

MeSH Unique ID: D065809

Entry Terms:

• Arrhythmia, Respiratory Sinus
• Sinus Arrhythmia, Respiratory

All MeSH Categories
Phenomena and Processes Category
Circulatory and Respiratory Physiological Phenomena
Cardiovascular Physiological Phenomena
Hemodynamics
Heart Rate
Respiratory Sinus Arrhythmia