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ARTICLE |

VENOUS PRESSURE AS AN INDEX OF BLOOD FLOW IN THE UPPER EXTREMITY

GEORGE W. DUNCAN, M.D.
Arch Surg. 1944;49(4):235-237. doi:10.1001/archsurg.1944.01230020243004.
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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

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