Paroxysmal AV block overview
Paroxysmal AV block Microchapters |
Diagnosis |
---|
Treatment |
Case Studies |
Paroxysmal AV block overview On the Web |
American Roentgen Ray Society Images of Paroxysmal AV block overview |
Risk calculators and risk factors for Paroxysmal AV block overview |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Akash Daswaney, M.B.B.S[2]
Overview
- Paroxysmal AV block is defined as a delayed escape rhythm which repetitively blocks conduction from the atria to the ventricles, thereby causing syncope, conduction defects such as asystole and sudden cardiac death.
- It may or may not be associated with Phase 3 or Phase 4 conduction defects.
- It may be due to an increased vagal tone, innately low adenosine levels or an intrinsic conduction defect, all of which lead to different ECG presentations.
- Insufficient data is available regarding the exact etiology, diagnostic study of choice and treatment of paroxysmal AV blocks.
- It can be thought of more as a disease of exclusion. However,efforts must be made to have a standardized approach to such patients.