Multiple abnormalities of the PR interval — including prolongation of the PR interval, shortening of the PR interval and variation from beat to beat — can occur; these are discussed in detail ...

The abnormality, called an increased PR interval, “is fairly common in healthy people. ... A PR interval of less than 200 microseconds is considered normal.

Because a severe ECG abnormality was defined by the rhythm, PR interval, QRS duration, and presence of atrioventricular block, these individual covariates were not included in the multivariate models.

A common abnormality detected in electrocardiograms that has been thought to be inconsequential is associated with a substantially increased risk of erratic heartbeats, the need for a pacemaker ...

Additional studies are needed to determine appropriate follow-up for individuals found to have prolongation of the PR interval on a routine electrocardiogram." ( JAMA . 2009;301[24]:2571-2577.

Electrocardiographic abnormalities are frequently observed in patients with Fabry's disease. In 1973, Roudebush et al. reviewed the first reported cases of an “abbreviated PR interval” in ...

The main abnormality found was a prolonged PR interval. In the athletes who were recovered from COVID-19, the mean PR interval was 183.6 milliseconds [ms] (± 32.4 ms) compared with 141.7 ms (± ...

The PR segment is different from the PR interval, ... Although abnormalities of the PR segment are not very common, they can indicate certain cardiac disease states.

PHILADELPHIA—Abnormalities revealed by electrocardiography (ECG) may predict which patients undergoing evaluation for a renal transplant are at higher risk of death, a study found. These ...