Direct results of 747 lower limb amputations for chronic critical lower limb ischemia were analyzed. Early postoperative complications were observed in 45,1% of cases. Among them 45,4% were caused by tissue ischemia. Basing on detection of lactate dehydrogenase activity in muscular tissue method of intra-operative evaluation of tissue ischemia at the level of amputation is proposed. Relationship between this index and frequency of early postoperative complications is proved.
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