P-R interval


Also found in: Dictionary, Thesaurus, Legal, Encyclopedia.
Related to P-R interval: P-R segment, PQ interval

P-R interval

In the electrocardiogram, the period between the onset of the P wave and the beginning of the QRS complex.
See also: interval
References in periodicals archive ?
In the higher BMI category, there is a statistically significant increase in P-R interval as well as QRS duration in both the sexes.
[19] The findings showed that smoking causes no appreciable change in ECG wave forms except P-R interval. The present study showed decrease in QRS complex duration in smokers.
The P-R interval following each sinus P wave is normal (0.16 s), and the QRS complexes, ST segments and T waves are normal.