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TIME REQUIRED FOR BLOOD TO FLOW FROM THE ARM AND FROM THE FOOT OF MAN TO THE CAROTID SINUSESI. EFFECT OF TEMPERATURE, EXERCISE, INCREASED INTRAMUSCULAR TENSION, ELEVATION OF LIMBS AND SYMPATHECTOMY
LUCIAN A. SMITH, M.D.;
EDGAR V. ALLEN, M.D.;
WINCHELL McK. CRAIG, M.D.
Arch Surg. 1940;41(6):1366-1376.
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No attempt has been made to review the literature on circulation time completely for this presentation. Extensive references may be found elsewhere.1 All methods depend on determination of the time elapsing between intravascular injection of a substance and its arrival at another part of the body. This arrival may be determined objectively2 or subjectively.3 Loevenhart and his associates4 noted marked respiratory stimulation in animals and man following intravenous injection of a solution of sodium cyanide and proposed the use of sodium cyanide for the determination of circulation time in man. Robb and Weiss, however, carried out the first clinical study. Since then there have been several reports.5
The principal site of action of the cyanide radical has been demonstrated by Heymans and his associates6 to be the carotid bodies. Winder and his associates7 confirmed this effect on the carotid reflex mechanism by direct
. . . [Full Text PDF of this Article]
Author Affiliations
Fellow in Medicine, the Mayo Foundation; ROCHESTER, MINN.
From the Division of Medicine (Drs. Allen and Smith) and the Section on Neurologic Surgery (Dr. Craig), the Mayo Clinic.
Footnotes
Abridgment of part of a thesis submitted by Dr. Smith to the Faculty of the Graduate School of the University of Minnesota in partial fulfilment of the requirements for the degree of Master of Science in Medicine.
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