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Effects of Postoperative Activity on Subcutaneous Tissue Oxygen Tension and BloodFlow in Orthopedic Surgical Patients

机译:骨科手术患者术后活动对皮下组织氧饱和度和血流量的影响

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Wounds are particularly vulnerable to perfusion and oxygenation deficits.Subcutaneous tissue oxygen tension (PSCO2) and subcutaneous blood flow (BFSC) reflect the balance between oxygen delivery and oxygen consumption in the periphery and are influenced by a variety of factors. Exercise has been associated with an increased rate of wound healing and in normal subjects, increased blood flow to peripheral tissues. The effect of activity on peripheral oxygen and blood flow in injured individuals is not well documented. This study compared the early postoperative effects of an enhanced postoperative activity plan with conventional postoperative activity on PSCO2 and BFSC in orthopedic surgical patients. Using a randomized two group experimental design, ten orthopedic surgical patients scheduled for total hip replacement were assigned to conventional postoperative activity or enhanced activity. PSCO2 was measured (using a silastic tonometer, fiberoptic/fluorescent oxygen sensor placed next to the surgical wound) on postoperative days 0, 1, and 2 while patients breathed room air and 50% 02. Baseline (on room air) PSCO2 was significantly different (F=21.94; p=0.0016) between activity protocol groups; measurements ranged from

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