AVB

Medical abbreviation · Cardiology

AVB
Stands forAtrioventricular block
CategoriesMedical

AVB stands for Atrioventricular block, a cardiology abbreviation.

Delay or interruption of electrical conduction from the atria to the ventricles. It is graded as first degree (PR interval over 200 ms), second degree (Mobitz type I or type II, with some beats dropped) or third degree, in which no atrial impulses reach the ventricles.

Example: ECG: second-degree AVB Mobitz II with 3:1 conduction; transcutaneous pads placed and cardiology paged.

Usage notes

Usually spoken and often written "AV block." Mobitz I (Wenckebach) shows progressive PR lengthening before a dropped beat and usually arises in the AV node, so it is often benign; Mobitz II drops beats without warning, arises lower in the conduction system and usually needs a pacemaker. Causes include degeneration, inferior MI, Lyme carditis, medications and cardiac surgery.

More cardiology abbreviations

  • AR – Aortic regurgitation
  • ARVC – Arrhythmogenic right ventricular cardiomyopathy
  • AS – Aortic stenosis
  • ASCVD – Atherosclerotic cardiovascular disease
  • ASD – Atrial septal defect
  • AV – Atrioventricular
  • AVNRT – Atrioventricular nodal reentrant tachycardia
  • AVR – Aortic valve replacement
  • AVRT – Atrioventricular reentrant tachycardia
  • BAV – Bicuspid aortic valve
  • BBB – Bundle branch block
  • BiV – Biventricular

See all 229 cardiology abbreviations →

Edited by the AbbreviationList.com team. Spotted an error or a missing meaning? Contact us.

This entry is for general education and is not medical advice. Abbreviation use varies between institutions; always confirm in context.