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GEORGE W. DUNCAN, M.D.

Arch Surg. 1944;49(4):235-237.

	Since this article does not have an abstract, we have provided the first 150 words of the full text PDF and any section headings.

In 1909 Hewlett and Van Zwaluwenberg¹ described a method of determination of the rate of blood flow in the arm. The method consisted essentially in placing the upper extremity in a plethysmograph and measuring the initial increase in volume of the limb when the venous out-flow was occluded by a pressure lower than the diastolic pressure. This principle has more recently been applied to more refined methods of determining the rate of blood flow in both upper and lower extremities.² Since vascular engorgement of an extremity is obvious when venous occlusion is produced, the idea suggested itself that measurement of the rate of rise in venous pressure in one of the large veins of the forearm might be to some degree indicative of the rate of blood flow in the extremity. If such a simple method can be developed from this preliminary study and by subsequent comparison with . . . [Full Text PDF of this Article]

Author Affiliations
BALTIMORE

From the Department of Surgery, Johns Hopkins University School of Medicine, and Johns Hopkins Hospital.

Footnotes
The work described in this paper was done under a contract, recommended by the Committee on Medical Research, between the Office of Scientific Research and Development and Johns Hopkins University.

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