The PR segment is the portion of the ECG from the end of the P wave to the beginning of the QRS complex. The PR segment is different from the PR interval, which is measured in units of time.

The time from the beginning of the P wave, indicating atrial depolarization, to the beginning of the QRS complex, representing ventricular depolarization, is the PR interval. This represents the ...

1 The majority of disorders associated with increased risk of sudden cardiac death (SCD), such as cardiomyopathies and primary electrical diseases, are suggested by abnormal findings present on an ECG ...

Upon review of this body and the described ECG findings, certain common patterns ... between cocaine use and AV conduction as assessed by PR interval length appears to be somewhat contradictory.

“When you come to the Volta Region as a PR person, before you excel, you need the media fraternity – the GJA. I’ve never seen media supporting the ECG like the way you do in the Volta ...