PR segment

PR seg·'ment

that part of the electrocardiographic curve between the end of the P wave and the beginning of the QRS complex.

PR seg·ment

(seg'mĕnt)
That part of the electrocardiographic curve between the end of the P wave and the beginning of the QRS complex.
References in periodicals archive ?
Reduced ventricular conduction velocity and prolonged PR segment appeared first, at just 0.
Subsequent tracings obtained after 12 hours and 18 hours revealed PR segment normalization (Figure 3), and after 30 hours, diffuse T wave inversions (Figure 4) (5, 6).
Electrocardiogram performed in the office revealed diffuse ST-segment elevation of 1-2 mm and diffuses PR segment depression.