Acta chirurgica Scandinavica
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A case report of a 15-year-old boy hit by a single low-velocity gun shot is presented. He sustained injuries to the small bowel, colon, appendix, iliac vessels, femoral nerve and ureter. The injury mechanism and the treatment are discussed, and the importance of exploring a retroperitoneal hematoma is emphasized.
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In six patients in whom a femoro-popliteal vein bypass graft was performed for intermittent claudication, the relationship between the haemodynamic state of the leg and the femoral venous oxygen saturation before and after local vasodilatation was investigated. The study was undertaken with special reference to the known influence of hypovolaemia on the leg blood flow. It is concluded that a femoral venous oxygen saturation below 70%indicates that the leg blood flow is less than 200 ml/min and that the bypass flow is less than 100 ml/min and thus within a range in which the incidence of early thrombosis is high. Furthermore, an increase in femoral venous oxygen saturation of 10% or more on local vasodilatation indicates a state of hypovolaemia, necessitating further blood substitution.