PR interval
Period in electrocardiography From Wikipedia, the free encyclopedia
Period in electrocardiography From Wikipedia, the free encyclopedia
In electrocardiography, the PR interval is the period, measured in milliseconds, that extends from the beginning of the P wave (the onset of atrial depolarization) until the beginning of the QRS complex (the onset of ventricular depolarization); it is normally between 120 and 200 ms in duration. The PR interval is sometimes termed the PQ interval.
Variations in the PQ interval can be associated with certain medical conditions:
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