TITLE

BLOOD FLOW IN POSTSYMPATHECTOMY PATIENTS

AUTHOR(S)
Gilbertsen, Victor A.; Emerson, Edward C.; Kottke, Frederic J.
PUB. DATE
April 1960
SOURCE
Angiology;Apr1960, Vol. 11 Issue 2, p139
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Difficulties associated with the clinical performance of accurate measurements of blood flow in the intact extremity often appear to complicate objective appraisal of the effects of sympathectomies performed for arterial insufficiency. Quantitative determination of arterial flow might be expected to supply data useful both in the evaluation of operative results and in the selection of suitable candidates for such operations. Relatively few modifications in certain details of the well established intermittent venous occlusion plethysmographic method of blood flow determination were required to permit ready clinical application. The concomitant employment of constant, controlled environmental temperature allowed quantitation of responses to heat and cold, prognostication regarding potential value of sympathectomy, and clarification of certain aspects of the effects of such operative procedures. Data available from studies of postsympathectomy patients indicate that lumbar sympathectomy was usually followed by a changed reaction to heat, cold and vasodilating drugs. The stimulation of the warm environment of the constant temperature room (32°C) as well as the administration of vasodilating drugs were, in such patients, associated with a decrease in arterial flow to the afflicted extremity, whereas exposure to the conditions of the cool room (20°C) produced a significantly increased blood flow to the sympathectomized extremities. The basic plan of the plethysmographic method of blood flow measurement would appear to require relatively minor modifications to permit its nearly routine clinical application. Reproducibility of measurements and reliability of assessments of range of potential response appear to be best assured by permitting stabilization of the patient in the environment of the constant temperature room before testing.
ACCESSION #
16365416

 

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