The outlook with bundle-branch block.

The outlook with bundle-branch block.

A series of papers on patients with various degrees of heart block (Campbell, 1942, 1943a, b, 1944) was meant to be completed with one on bundle-branch block. But when the war ended, my Lumleian lectures on the paroxysmal tachycardias (Campbell, 1947) occupied all my time until I became deeply involved in problems of malformations of the heart and their surgical treatment. Recently, when cleari...

Incomplete Bundle Branch Block.

Lewis (1925) stated that delay in the passage of the impulse down a bundle branch could alter materially the form of the electrocardiogram. Wilson (1940) defined incomplete bundle branch block as due to a conduction defect that merely retards the passage of the impulse through one of the main bundle branches, and stated that it gives rise to electrocardiograms which are " transitional, both as ...

Bilateral bundle branch block.

Left Bundle Branch Block

Coronary angiography, cine left ventriculography, and the cardiovascular hemodynamics of 24 patients with left bundle branch block were studied. Seven patients were found to have significant coronary artery disease, always severe. Five had cardiomyopathy and seven had valvular disease. Only those with coronary artery disease or cardiomyopathy had abnormal left ventricular contraction patterns. ...

Transient Bundle-branch Block.

IN a recent survey of 167 patients with buIndle-branch l)lock 1 10 in.stances of transient bundle-branch block were discovered. Since the completion of this study four more patients with this condition have been encountered. These 14 patients represent the subjects of this report. Transient bundle-branch block is defined as an intraventricular conduction defect that subsequently returns, if onl...