MI Diagnosis in RBBB
Jump to navigation
Jump to search
As shown in the examples below, myocardial infarction diagnosis in right bundle branch block is not very different from normal MI diagnosis. As repolarisation in leads V1-V3 is often abnormal in RBBB, these leads cannot always be used for the diagnosis of ischemia.
Examples
Case 1a: Patient with RBBB and inferior MI. Notice left axis deviation.
Case 1b: Lead V4R in the same patient with RBBB and inferior MI clearly shows ST elevation.
Case 1c: The same patient before acute MI developed. Horizontal axis.
Case 2a: RBBB with anterior myocardial infarction. ST elevation in V2-V3.
Case 2b: ECG from the same patient before the MI occured.
