PR interval

PR in·ter·val

in the electrocardiogram, the time elapsing between the beginning of the P wave and the beginning of the next QRS complex; it corresponds to the a-c interval of the venous pulse and is normally 0.12-0.20 sec.
Synonym(s): PQ interval

PR in·ter·val

(in'tĕr-văl)
In the electrocardiogram, the time elapsing between the beginning of the P wave and the beginning of the next QRS complex; it corresponds to the a-c interval of the venous pulse and is normally 0.12-0.20 sec.
Synonym(s): PQ interval.
References in periodicals archive ?
The PR interval varied, and there was no association of the P waves and QRS complexes in the electrocardiogram.
Treatment with nVNS had no meaningful effect on heart rate, PR interval, corrected QT interval, or QRS duration.
Cardiac Rhythm and Conduction Abnormalities: PR interval prolongation Dose-dependent prolongations in PR interval with VIMPAT have been observed in clinical studies in patients and in healthy volunteers.
9 mV Small, Myocardial flattened, Ischemia, or inverted Electrolyte Disturbances, Pulmonary Embolism, Conduction Disturbances, Hypokalemia PR interval 0.
Waveform summary measurements - this includes; QT and QTc interval measurements, PR interval, QRS duration, P duration, P axis, QRS axis and T axis.
The heart rate, PR interval (PRi), QT interval (QTi) and duration of the QRS complex were measured in 10 consecutive beats.
In few studies on this subject, generally P wave amplitude and PR interval on ECG were studied (3-5).
The PR interval was measured from the beginning of the P wave to the beginning of the QRS complex, and the QRS interval was measured from the beginning of the QRS complex to the end of the QRS complex.
The PR interval and QRS duration were normal at 138ms and 82ms.
PR interval, QRS duration, QT interval and P-wave intervals were evaluated thoroughly.
The new data from the clinical trial also showed that propoxyphene increased the duration of two other measures of the heart's electrical activity - the PR interval and the QRS complex.
when the PR interval is prolonged but atrial signals continue to reach the ventricles (first- or second-degree block) or 2.