×

MedSchool: Ace Your OSCEsThe Medical Company

GET - On the App Store

Conduction Disorders

Conduction Disorders

First Degree SA Exit Block

Bookmark

View Topic Outline

Overview

First degree sinoatrial exit block is due to delayed transmission of an impulse from the sinoatrial node, and is not detectable on ECG.

----------------------------------------------------------------------------------------------------------------------------------------------------------------------------

Want more info like this?

MedSchool

Your electronic clinical medicine handbook
Guides to help pass your exams
Tools every medical student needs
Quick diagrams to have the answers, fast
Quizzes to test your knowledge

Read More...

Cheng S, Keyes MJ, Larson MG, McCabe EL, Newton-Cheh C, Levy D, Benjamin EJ, Vasan RS, Wang TJ. Long-term outcomes in individuals with prolonged PR interval or first-degree atrioventricular block. Jama. 2009 Jun 24;301(24):2571-7. Childers R. Teaching electrocardiogram interpretation. Journal of electrocardiology. Volume 39, Issue 4, October 2006, Pages 426429. Haft JI, Herman MV, Gorlin R. Left Bundle Branch Block Etiologic, Hemodynamic, and Ventriculographic Considerations. Circulation. 1971 Feb 1;43(2):279-87.

Levites R, Haft JI. Significance of first degree heart block (prolonged PR interval) in bifascicular block. American Journal of Cardiology. 1974 Sep 1;34(3):259-64.

Meek S, Morris F. ABC Of Clinical Electrocardiography: Introduction. British Medical Journal 2002; Vol. 324, No. 7335; pp. 470-473 Money-Kyrle, Andrew. ECG interpretation made simple. GP (Nov 12, 2010): 36-37.