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Cryoprecipitate is frequently administered as treatment for hemostatic defects in patients with uremia. The only published data supporting this approach however, involves seven patients described by Janson and colleagues in whom bleeding times were shortened and bleeding complications reduced after cryoprecipitate infusion. We retrospectively reviewed our institution's experience with cryoprecipitate in this setting. Five patients had sufficiently complete data for evaluation of the efficacy of therapy with cryoprecipitate, including pretreatment bleeding time greater than 15 minutes, normal coagulation studies, and platelet count greater than 100,000/microliters. Two patients had normalization of their bleeding time and a favorable clinical outcome after cryoprecipitate infusion. Three patients failed to shorten their bleeding time after cryoprecipitate infusion or, in one case, multiple infusions. One of these latter patients had correction of his abnormal bleeding time after subsequent administration of deamino-8-D-arginine vasopressin (DDAVP). We conclude that the hemostatic response to cryoprecipitate therapy is variable, and that cryoprecipitate therapy does not achieve restoration of normal hemostasis in some patients with uremic bleeding.