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[Low pressure trocar resection versus Iglesias suction resection].

Trocar resection is superior to Iglesias' backwash resection. The main criteria on which this assessment is based are the larger operative specimen obtained, the shorter duration of the operation, and the much smaller intraoperative infiltration volume. This last was determined using a glycine irrigation solution, by measuring the increase in glycine in the serum by means of column chromatography. This showed that the intravesical irrigation pressure determines the absorption volume after opening of the venous sinus, while the duration of the resection and the volume of irrigation solution employed perioperatively are of less importance. In the case of alcohol-based irrigation solutions these results can be confirmed by measuring the "standby" alcohol in the respiratory air.