Commercial Fibrinogen, Autogenous Plasma, Whole Blood and Cryoprecipitate for Coagulum Pyelolithotomy: A Comparative Study

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Abstract
Coagulation pyelolithotomy provides an effective means to remove multiple calculi from the renal collecting system. The strength of the coagulum is directly proportional to the concentration of fibrinogen and inversely proportional to the concentration of thrombin. It may become necessary to use plasma from the patient as the source of fibrinogen. By the process of cryoprecipitation fibrinogen levels can be increased about 10-fold, yielding clots of greater tensile strength than would be obtained from non-concentrated plasma.

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