Healio

Second Degree Type I AV Block

In second-degree AV nodal block (a.k.a. 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 followed by a QRS ...
Medscape

ECG Challenge: A Counterclockwise Rotation

The diagnosis is NSR, Mobitz type I second-degree atrioventricular (AV) block (Wenckebach), nonconducted (blocked) PACs, and early transition (counterclockwise rotation). The rhythm is irregular, but ...
Medindia

Medications and their Potential to Cause Increase 'Atrioventricular block'

This page lists all known medications that could potentially lead to 'Atrioventricular block' as a side effect. It's important to note that mild side effects are quite common with medications. The ...
Monthly Prescribing Reference

Antidepressant-PPI Interaction Leads to Heart Trouble

Although there have previously been no reported cases of an interaction between trazodone and omeprazole, a new report is believed to be the first instance of reversible second-degree Mobitz type 1 ...
Healio

Second Degree Type II AV Block

In second degree type II AV nodal block (a.k.a. Mobitz Type II AV block), the AV node becomes completely refractory to conduction on an intermittent basis. For example, three consecutive P waves may ...
Medindia

Medications and their Potential to Cause Increase 'First Degree Atrioventricular Block'

This page lists all known medications that could potentially lead to 'First Degree Atrioventricular Block' as a side effect. It's important to note that mild side effects are quite common with ...
Medscape

Which Type of AV Block?

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 ...