Experimental Bundle-Branch Block Fifty Years Ago

Ventricular excitation in experimental bundle-branch block.

Multipoint 1 recording apparatus has been used to study the pattern of ventricular excitation in experimental bundle-branch block. After block, the wave of activation spreads uniformly from the contralateral ventricle across the septum to the free wall of the homolateral ventricle. Septal activation consumes more time than in the normal. Changes occur in the site and extent of early endocardia!...

Tuberculosis in Indian Prisons Fifty Years Ago

The evacuation of Burma: fifty years ago.

When asked to write a few notes about my spell in Burma, April and May 1942, I had to read again Field Marshal Sir William Slim's book, especially the first part of "Defeat into Victory", in order to refresh my memory with the dates and place names in Burma with which I was concerned. It is hard to believe that it took place 50 years ago and one gets no younger in body and mind.

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.