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  • Title: Complications of low-dose heparin prophylaxis in gynecologic oncology surgery.
    Author: Clarke-Pearson DL, DeLong ER, Synan IS, Creasman WT.
    Journal: Obstet Gynecol; 1984 Nov; 64(5):689-94. PubMed ID: 6493660.
    Abstract:
    The clinical and laboratory effects of low-dose heparin prophylaxis was prospectively studied in a controlled trial of 182 patients undergoing major surgery for gynecologic malignancy. Low-dose heparin was given in 5000 U subcutaneously two hours preoperatively and every 12 hours for seven days postoperatively. Low-dose heparin-treated patients had a significantly increased daily retroperitoneal hemovac drainage. Although not statistically significant, low-dose heparin was associated with increased estimated intraoperative blood loss, transfusion requirements, and wound hematomas. Fifteen percent of patients receiving low-dose heparin were found to have an activated partial thromboplastin time greater than 1.5 times the control value. In these patients, all clinical bleeding parameters were significantly increased. Low-dose heparin-treated patients also had significantly prolonged activated partial thromboplastin time and lower final platelet counts as compared with the control patients. When using low-dose heparin for thromboembolism prophylaxis, patients should be closely observed for clinical hemorrhagic complications. Activated partial thromboplastin times and platelet counts should be monitored throughout therapy.
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