Bundle branch block: Difference between revisions
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===ECG Changes=== | ===ECG Changes=== | ||
[[image:bbb.jpg|300px|thumb|right|Think '''W'''i'''LL'''ia'''M''' and '''M'''a'''RR'''o'''W'''. See the text if that doesn't make sense.]] | [[image:bbb.jpg|300px|thumb|right|Think '''W'''i'''LL'''ia'''M''' and '''M'''a'''RR'''o'''W'''. See the text if that doesn't make sense.]] | ||
If you're not sure about bundle branch block, think of '''W'''i'''LL'''ia'''M''' and '''M'''a'''RR'''o'''W''' | |||
*'''L'''BBB: there is a '''W''' shape in '''V1''' and an '''M''' shape in '''V6'''. | |||
*'''R'''BBB: there is an '''M''' shape in '''V1''' and a '''W''' shape in '''V6'''. | |||
Revision as of 15:14, 28 December 2009
Definition
Cessation of appropriate electrical conduction down either the left of right bundle branch.
Pathophysiology
- LBBB: aortic stenosis, dilated cardiomyopathy, MI, CAD.
- RBBB: atrial septal defect, PE, MI
ECG Changes
If you're not sure about bundle branch block, think of WiLLiaM and MaRRoW
- LBBB: there is a W shape in V1 and an M shape in V6.
- RBBB: there is an M shape in V1 and a W shape in V6.