Abstract
Dehydration is frequently encountered in elderly patients and hypodermoclysis is an alternative method of parenteral rehydration. Hyaluronidase is classically added to the solution infused subcutaneously. The local effects of hypodermoclysis with or without hyaluronidase were investigated by using a randomized double-blind study in 12 dehydrated elderly patients. Five hundred millilitres of a 5% glucose saline solution was infused subcutaneously in 2 hours in each thigh, (A) with and (B) without 250 U of hyaluronidase. Circumférence and temperature of each thigh were assessed before and after the infusion. Color was evaluated after the infusion. The gain in thigh circumference was less in the presence of hyaluronidase, but the other variables did not differ. The patients were thoroughly questioned about pain: no difference was noted between solutions A and B. We conclude that hyaluronidase adds no comfort that justifies its systematic use in the hypodermoclysis of glucose saline solutions.
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