Researches on the comparative anatomy and the experimental pathology of the superior connections of bundle his-tawara

Abstracts and Reviews Selected Abstracts Fishback, D. B., Guttman, S. A., and Abramson, E. B.: Determining Blood Velocity (Fluorescein Method).

An Objective Method of Am. J. M. SC. 203: 533,

1942. A new The to the

objective

circulation

time

test

data obtained indicate that the patient, and reliable as indicated

This children,

method is of particular comatose, anesthetized,

advantage mentally

has

been

described,

using

method is reasonably by comparison with in determining ill, and moribund

fluorescein.

simple, not other methods.

t,he blood patients.

velocity

harmful in small

In patients with normal hearts or fully compensated cardiac disease, the circulation time varied from seven to 15.6 seconds. In another group of patients with cardiac disease undergoing decompensation, the circulation time varied from sixteen to twenty-five seconds, one being forty-five seconds.

AC~THORS. Mahaim, E., and Winston, M. IL: Researches on the Comparative Anatomy and the Experimental Pathology of the Superior Connections of Bundle His-Tawara. Cardiologia

5:

The His-Tawara ventricular septum. part

of the ventricular

189,

1941.

bundle is not completely isolated There exist delicate connections septum.

from which

the musculature of the unite it to the upper

These upper connections are always to be found in man and the following animals : sheep, calf, dog, cat, rabbit. They are dispersed, varying in their calibei They are mostly direct, and topography. sometimes indirect and sometimes inIt is possible to identify them only in an uninterrupted series of slides. stantaneous. These upper connections are of functional importance in _physiopathology. They explain the lack of auriculo-ventricular block when both branches are destroyed confirms t,he existence simultaneously (bloc bilateral manque) . The experimentation of this para-specific septal conduction. In tional

physiopathology organ. They

these explain

upper connections the contradictions

assume the functions of a substituwhich occur in the anatomoclinical re-

searches on bundle branch block. in the normal cardiac contraction these upper connec,tions probably assure a direct conduction between the specific tissue and the musculature of the upper part of the vent,ricular septum, in a region which does not directly communicate with PurWe’s terminal

network.

AUTIIOKS. 423