| Title |
Second degree AV block, type I, with bradycardia-dependent RBBB |
| Creator |
Yanowitz, Frank G. |
| Contributor |
Frank G. Yanowitz, MD, Professor of Cardiology, University of Utah School of Medicine |
| Date |
1997-01-01 |
| Description |
An interesting and unusual form of rate-dependent bundle branch block. Normal sinus rhythm at 85 bpm is present with a 3:2 and 2:1 2nd degree AV block. The progressive PR prolongation in the 3:2 block makes this a type-I or Wenckebach block.Long cycles end in RBBB; short cycles have normal QRS duration. This is, therefore, a Bradycardia-dependent RBBB. The mechanism is thought to be due to latent pacemaker activity in the right bundle partially depolarizing the bundle, thus making conduction down it more difficult. |
| Subtype |
Image |
| Format |
image/png |
| Rights |
http://creativecommons.org/licenses/by-nc-sa/1.0/ |
| Collection |
Knowledge Weavers ECG |
| ARK |
ark:/87278/s65x58rf |
| Setname |
ehsl_heal |
| ID |
870339 |
| Reference URL |
https://collections.lib.utah.edu/ark:/87278/s65x58rf |
