To evaluate the effect of mini-dose heparin therapy on lymphocele formation after extraperitoneal pelvic lymphadenectomy we reviewed the records of 38 patients undergoing this procedure for prostatic cancer during a 24-month period. All patients had a minimum of 6 months of followup. Lymphoceles occurred in 3 of 8 patients (38%) receiving mini-dose heparin and prolonged lymph drainage occurred in 1 other patient (12%). In contrast, only 1 of 30 patients (3%) not receiving mini-dose heparin had a lymphocele and 1 (3%) had prolonged lymph drainage. The results suggest that mini-dose heparin may delay clotting of lymph and, thus, may be associated with an increased incidence of lymphocele formation after extraperitoneal lymphadenectomy.
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