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Supplemental Oxygen and Dependent Positioning as Adjunctive Measures to Improve Forefoot Tissue Oxygenation
Willard C. Johnson, MD;
Henry I. Grant, MD;
Donna Baldwin, RN;
Janis V. Hamilton, RN;
Janice M. Dion, RN
Arch Surg. 1988;123(10):1227-1230.
Abstract
• Fifty-seven patients with resting pain or tissue necrosis were found to have a forefoot transcutaneous tissue oxygen (tcPo2) level less than 30 mm Hg. The adjunctive measures of foot dependency (36 cm below heart level) and nasal oxygen of 3 L/min were evaluated in these patients. In general, the improvement in tcPo2 levels with these adjunctive measures was not related to basal levels of forefoot or arm tcPo2. One can expect an increase in tcPo2 level of approximately 22 mm Hg while employing the dependent position and an additional benefit of 12 mm Hg with the administration of nasal oxygen. Of the 35 patients with a basal forefoot tcPo2 level of less than 10 mm Hg, 11 did not respond to these adjunctive measures.
(Arch Surg 1988;123:1227-1230)
Author Affiliations
From the Departments of Surgery, Boston Veterans Adminstration Medical Center, and Tufts University School of Medicine, Boston.
Footnotes
Accepted for publication Dec 30, 1987.
Read before the 14th Annual Meeting of the New England Society for Vascular Surgery, Bretton Woods, NH, Sept 11, 1987.
Reprint requests to Chief, Vascular Surgery, Boston VA Medical Center, 150 S Huntington Ave, Boston, MA 02130 (Dr Johnson).
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