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Roles of Doppler Ultrasound and Digit Photoplethysmography

Robert W. Barnes, MD; Brenda Thornhill, RN; Lee Nix, RN; Stanley E. Rittgers, PhD; Glenn Turley

Arch Surg. 1981;116(1):80-83.

Abstract
• Segmental limb blood pressures (BPs) measured by Doppler ultrasound and digit photoplethysmography were used to define hemodynamic correlates of wound healing in 122 lower-extremity amputations for ischemia. Healing of digit or transmetatarsal amputations was influenced by the presence of diabetes and correlated better with digit pulsation and BP than with ankle pressure. Healing of below-knee amputation did not correlate with segmental limb BPs. In the absence of an absolute threshold to predict wound healing or failure, caution is urged in using hemodynamic indices to select the level of amputation for arterial insufficiency.

(Arch Surg 116:80-83, 1981)

Author Affiliations
From the Noninvasive Peripheral Vascular Laboratories, Department of Surgery, Medical College of Virginia (Dr Barnes, Ms Nix, and Mr Turley), and the McGuire Veterans Administration Medical Center (Drs Barnes and Rittgers and Ms Thornhill), Richmond, Va.

Footnotes
Accepted for publication July 15, 1980.

Read in part before the Society for Vascular Surgery, Nashville, Tenn, June 30, 1979.

Reprint requests to Box 221 MCV Station, Richmond, VA 23298 (Dr Barnes).

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