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Significance of the Induced Digital Vasoconstrictive Reflexes
TRAVIS WINSOR, M.D.;
WILBUR A. SELLE, Ph.D.;
YOUSSEF K. MAWARDI, M.D.
AMA Arch Surg. 1956;72(1):20-31.
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Digital vasoconstrictive responses to sensory stimulation have been known for many years; however, they have not been considered useful diagnostic signs of disease of the nervous system or blood vessels, since the many factors influencing these reactions have not been adequately clarified.* It is the purpose of this report to examine the nature of the induced vasomotor reflexes and to point out certain conditions in which knowledge of the behavior of these reflexes is of clinical value.
METHODS AND MATERIALS
Approximately 500 induced vasomotor reflexes have been studied in 125 persons. Forty-five subjects were normal; 45 had organic arterial disease due to arteriosclerosis; 20 were blind or deaf subjects without vascular disease; 10 had Raynaud's syndrome, and 5 had emotional problems resulting in strong anxiety states. The average age was 39 years, with a range of 20 to 62. Sixty per cent were female. Vasodilatation was induced by having the
. . . [Full Text PDF of this Article]
Author Affiliations
Los Angeles
From the Nash Cardiovascular Research Foundation, Hospital of the Good Samaritan; Department of Medicine, University of Southern California School of Medicine, and the Department of Biophysics, University of California at Los Angeles.
Footnotes
Recorded for publication Sept. 7, 1955.
Presented at the Third Scientific Meeting of the North American Chapter of the International Society of Angiology, Atlantic City, N. J., June 4, 1955.
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