Is it an 'RBBB' ?

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QUESTION 1. A poor ejection fraction with a normal-sized heart should surprise you. In these circumstances, you should think about acute myocardial dysfunction.

QUESTION 2. Right bundle branch block (RBBB) should be diagnosed on the basis of a widened QRS complex with an R' deflection in V1. These are present but several clues should alert you to the fact that this is not a simple, uncomplicated RBBB:

In the clinical context of a man with severe vascular disease, a normal-sized heart on chest x-ray, and a poor ejection fraction, one should be extremely concerned about recent anterior (septal) myocardial infarction.

Echocardiography showed an akinetic septum, hypokinetic apex, and thrombus in the left ventricle. Electrocardiograms performed two days and eleven days after the first ECG are shown in Figs 6 and 7.

ECG after 2 days showing wide slurred R prime in V1
Fig 6. ECG taken two days after the first

ECG taken after 11 days showing well-established Q waves with settling of ST segment
Fig 7. .. and after 11 days

QUESTION 3. No. The foot needs to come off. It's also crazy to perform major surgery like an aortobifemoral graft in someone with a recent myocardial infarction and left-ventricular dysfunction. In the actual case, after extensive discussion the surgeons still refused to remove the foot, but agreed to do a lesser procedure (an axillo-bifemoral graft) and after struggling ineffectually with antibiotic therapy for a week, eventually amputated the foot.



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