P-R interval

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Related to P-R interval: P-R segment, PQ interval

P-R interval

the interval from the beginning of the P wave to the beginning of the QRS complex on an electrocardiogram. It represents the atrioventricular conduction time, which normally is between 0.12 and 0.20 second.

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


the space between two objects or parts; the lapse of time between two events. In statistical terms, the numerical distance between two values.

atrioventricular interval, A-V interval
see P-R interval (below).
cardioarterial interval
the time between the apex beat and arterial pulsation.
P-R interval
in electrocardiography, the time between the onset of the P wave (atrial activity) and the QRS complex (ventricular activity).
QRST interval, Q-T interval
the duration of ventricular electrical activity.


in electrocardiography, refers to the P and R waves.

P-R interval
the period from the beginning of the P wave to the beginning of the QRS complex.
P-R segment
the isoelectric tracing that follows the P wave and ends with the deflection of the Q wave. It represents the delay of the electrical impulse at the atrioventricular node.
References in periodicals archive ?
9] In our study, we found that ECG variables like P-R interval and QRS duration were linearly correlated with body mass index and it was statistically significant.
Histologic demonstration of accessory muscular connections between auricle and ventricle in a case of short P-R interval and prolonged QRS complex.
Because all of the APCs fall in the relative refractory period of the atrioventricular node, the P-R intervals following APCs (0.