PMID- 15863537 OWN - NLM STAT- MEDLINE DCOM- 20050630 LR - 20131121 IS - 0029-7844 (Print) IS - 0029-7844 (Linking) VI - 105 IP - 5 Pt 1 DP - 2005 May TI - Low-molecular-weight heparin (dalteparin) in women with gynecologic malignancy. PG - 1006-11 AB - OBJECTIVE: To compare the efficacy of dalteparin, a low-molecular-weight heparin, to unfractionated heparin (UFH) in the prevention of deep venous thrombosis (DVT) and pulmonary embolism in patients after surgery for gynecologic malignancy. METHODS: The medical records of all patients undergoing major surgery on the Gynecologic Oncology Service at the Massachusetts General Hospital from July 2002 through April 2003 were reviewed. Patients with confirmed malignancy were included. Between July 1, 2002, and November 15, 2002, dalteparin (5,000 U subcutaneously each day) was used for postoperative prophylaxis for DVT and pulmonary embolus. After November 15, 2002, the method of prophylaxis was changed to UFH (5,000 U subcutaneously every 8 hours) exclusively. Patients were evaluated for DVT or pulmonary embolus based on clinical suspicion using computed tomographic angiography, ventilation and perfusion scan, or lower extremity doppler. RESULTS: A total of 214 patients were identified who met study criteria. Dalteparin was administered to 103 patients, and UFH was administered to 111. The rates of clinically significant DVT or pulmonary embolus in patients receiving dalteparin and UFH were 8.9% and 1.2%, respectively (P = .009). Major risk factors for DVT or pulmonary embolus, including age, obesity, duration of surgery, and type of malignancy, did not differ between groups. There were no significant differences in bleeding complications or transfusion requirements between groups. CONCLUSION: The low-molecular-weight heparin dalteparin dosed 5,000 U daily is inadequate postoperative prophylaxis in women undergoing surgery for gynecologic cancer. In addition, heparin administered every 8 hours was not associated with increased bleeding complications. The use of dalteparin at the doses used in this study should be questioned until a large randomized trial shows efficacy in these high-risk patients. FAU - DeBernardo, Robert L Jr AU - DeBernardo RL Jr AD - Divisions of Gynecologic Oncology and Medical Oncology, Massachusetts General Hospital, Boston, Massachusetts, USA. FAU - Perkins, Rebecca B AU - Perkins RB FAU - Littell, Ramey D AU - Littell RD FAU - Krasner, Carolyn N AU - Krasner CN FAU - Duska, Linda R AU - Duska LR LA - eng PT - Comparative Study PT - Journal Article PL - United States TA - Obstet Gynecol JT - Obstetrics and gynecology JID - 0401101 RN - 0 (Heparin, Low-Molecular-Weight) RN - S79O08V79F (Dalteparin) SB - IM MH - Adult MH - Age Distribution MH - Aged MH - Aged, 80 and over MH - Cohort Studies MH - Dalteparin/*administration & dosage MH - Dose-Response Relationship, Drug MH - Drug Administration Schedule MH - Female MH - Follow-Up Studies MH - Genital Neoplasms, Female/pathology/*surgery MH - Gynecologic Surgical Procedures/adverse effects/methods MH - Heparin, Low-Molecular-Weight/*administration & dosage MH - Humans MH - Incidence MH - Injections, Subcutaneous MH - Middle Aged MH - Perioperative Care MH - Probability MH - Prospective Studies MH - Pulmonary Embolism/epidemiology/*prevention & control MH - Risk Assessment MH - Sex Distribution MH - Treatment Outcome MH - Venous Thrombosis/epidemiology/*prevention & control EDAT- 2005/05/03 09:00 MHDA- 2005/07/01 09:00 CRDT- 2005/05/03 09:00 PHST- 2005/05/03 09:00 [pubmed] PHST- 2005/07/01 09:00 [medline] PHST- 2005/05/03 09:00 [entrez] AID - 105/5/1006 [pii] AID - 10.1097/01.AOG.0000153026.61249.c7 [doi] PST - ppublish SO - Obstet Gynecol. 2005 May;105(5 Pt 1):1006-11. doi: 10.1097/01.AOG.0000153026.61249.c7.