LBBB: Difference between revisions

34 bytes removed ,  24 August 2007
changed to "can be difficult" -- i will check out "MI Diagnosis in LBBB" before I go on about Sgarbossa on this page
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(changed to "can be difficult" -- i will check out "MI Diagnosis in LBBB" before I go on about Sgarbossa on this page)
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In ''left bundle branch block'' (LBBB) the conduction in the left bundle is slow. This results in delayed depolarization of the left ventricle, especially the left lateral wall. The electrical activity in the left lateral wall is unopposed by the usual right ventricular electrical activity. The last activity on the ECG thus goes to the left or away from V1. Once you remember this, LBBB is easy to understand.
In ''left bundle branch block'' (LBBB) the conduction in the left bundle is slow. This results in delayed depolarization of the left ventricle, especially the left lateral wall. The electrical activity in the left lateral wall is unopposed by the usual right ventricular electrical activity. The last activity on the ECG thus goes to the left or away from V1. Once you remember this, LBBB is easy to understand.


[[MI Diagnosis in LBBB|Diagnosis of myocardial infarction in LBBB]] is difficult as the ST segment is allways abnormal.
[[MI Diagnosis in LBBB|Diagnosis of myocardial infarction in LBBB]] can be difficult.


Also read [[RBBB|right bundle branch block]].
Also read [[RBBB|right bundle branch block]].