Disruption of Skin Perfusion Following Longitudinal Groin Incision for Infrainguinal Bypass Surgery

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Abstract 

Objectivethe objective of our study was to investigate whether such an incision results in a reduction in blood flow, and therefore haemoglobin oxygen saturation, across the wound.Designmicrovascular oxygenation was measured with lightguide spectrophotometry in 21 patients undergoing femoropopliteal or femorodistal bypass procedures. A series of measurements were made in the groin, medial and lateral to the surface marking of the femoral artery. The mean oxygen saturation on each side was calculated, and the contra-lateral groin was used as a control. The measurements were repeated at 2 and 7 days postop.Resultsoxygen saturation in the skin of the operated groins was increased significantly from baseline at 2 days postop (f=25.80, p<0.001) and had begun to return to normal by day 7. The rise was more marked on the lateral side of the wound than on the medial (f=12.32, p<0.001). There was no such difference in the control groins. All wounds healed at 10 days.Conclusionsthese results show a significant difference in skin oxygenation between the lateral and medial sides of the groin following longitudinal incision. This may contribute to the relatively high incidence of postoperative infection in these wounds.

Keywords: Groin, Infrainguinal, Wound infection, Oxygenation, Spectrophotometry.

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• f1 Please address all correspondence to: D. J. Newton, Vascular Laboratory, Ninewells Hospital and Medical School, Dundee DD1 9SY, U.K.