Some consider 2:1 AV block to be type II block, claiming that the PR interval doesn't lengthen. What they don't realize is that determining whether the PR interval lengthens requires at least 2 ...

In second-degree atrioventricular nodal block — also known as Wenckebach block or Mobitz Type I AV block — varying failure of conduction through the AV node occurs, such that some P waves may not be ...

Correspondence to Dr S Serge Barold, University of South Florida College of Medicine, 5806 Mariner's Watch Drive, Tampa, FL 33615, USA; ssbarold{at}aol.com If you wish to reuse any or all of this ...

Mobitz type I heart block, a type of second-degree AV block, occurs when electrical signals progressively slow down, causing the heart to occasionally skip a beat. Most individuals with Mobitz type I ...

There are three types of second degree heart block, also called atrioventricular (AV) block. In type I the signal sometimes does not reach the ventricles, causing skipped beats. It is often benign and ...

Among the 668 study patients (mean age 68.2 ± 15.4 years, 337 women), 108 patients (16.2%) were receiving AV conduction impairing medications during the diagnosis of AV block. Of 108 patients, 29 ...