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 ?
5] The spectrum of manifestation is still expanding and the followings are recently reported: fetal prolonged PR interval, first-and second-degree AVB, EFE, prolongation of corrected QT interval, sinus bradycardia (SB), late-onset DCM, atrial flutter, valvular insufficiency, ventricular/valvular hyperechogenicity, pericardial effusion, and other heart disorders even in the absence of cardiac block.
The following parameters were, namely, PR interval, QRS complex, ST segment were evaluated in seconds.
PR interval was measured from the beginning of the P-wave to the beginning of the R-wave and considered the mean of five consecutive beats taken from the lead II.
Table 2 demonstrated the mean values and standard deviations of the electrocardiographic variables: duration of Pms wave, amplitude of Pmv, PR interval, QRS complex, Rmv wave amplitude, and QT interval.
For example, the detection of a short PR interval (the time between P and R peaks) is essential to properly diagnosing Wolff-Parkinson-White (WPW) syndrome.
The PR interval was measured as the distance from the start of the P wave to the start of the QRS complex (normal range of PR interval: 120-200 ms).
Patient's rhythm was reverted to sinus rhythm and repeat ECG showed short PR interval and delta wave in V1, V2, V3, V4.
11] The ECGs were analyzed for heart rate, PR interval, QRS duration, QT interval, QTc interval, and QRS axis.
In the final Jones criteria, a PR interval longer for age was proposed as a minor criterion, but a PR interval longer for age and heart rate should be used as a minor criterion, because accompanying fever and myocarditis may lead to tachycardia in these patients.
A short PR interval, delta wave and wide QRS complex are evidence of pre-excitation (Wolff-Parkinson-White syndrome) and suggest a diagnosis of AVRT or pre-excited AF.
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.