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Plastic & Reconstructive Surgery:
doi: 10.1097/PRS.0b013e31818dbffd
Reconstructive: Head and Neck: Original Articles

Efficacy and Safety of Venous Thromboembolism Prophylaxis in Highest Risk Plastic Surgery Patients

Seruya, Mitchel M.D.; Venturi, Mark L. M.D.; Iorio, Matthew L. M.D.; Davison, Steven P. D.D.S., M.D.

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Abstract

Background: The purpose of this study was to stratify plastic surgery patients into venous thromboembolism risk categories; identify patients at highest risk for venous thromboembolism; and quantify rates of postoperative all-cause mortality, venous thromboembolism, and hematoma/bleeding on different forms of thromboprophylaxis. Furthermore, this study aimed to determine the compliance and average duration of outpatient chemoprophylaxis.

Methods: A retrospective cohort study was carried out on a single plastic surgeon's experience. Venous thromboembolism risk stratification identified patients at highest risk. Records were reviewed for regimen of thromboprophylaxis and for occurrences of all-cause mortality, venous thromboembolism, and hematoma/bleeding. Outpatient compliance and duration of low-molecular-weight heparin chemoprophylaxis was also documented.

Results: During the study time period, 173 operations involved 120 patients at highest risk for venous thromboembolism. Among highest risk patients, one (0.8 percent) suffered a pulmonary embolism, eight (6.7 percent) experienced a deep vein thrombosis, and 15 (12.5 percent) endured a hematoma/bleed. Thirteen of 14 outpatients (92.9 percent) were compliant with low-molecular-weight heparin and remained on chemoprophylaxis for an average of 7.4 days.

Conclusions: Mechanical prophylaxis plus subcutaneous heparin (unfractionated or low-molecular-weight heparin) conferred a statistically significant reduction in the rate of venous thromboembolism without a significant increase in bleeding versus mechanical prophylaxis alone. Subgroup analysis of patients placed on mechanical prophylaxis plus low-molecular-weight heparin revealed similar statistically significant findings. Outpatients placed on low-molecular-weight heparin chemoprophylaxis demonstrated excellent compliance and comfort with self-administration. Therefore, the use of mechanical prophylaxis supplemented with low-molecular-weight heparin is strongly recommended as the first-line regimen for thromboprophylaxis in plastic surgery patients at highest risk for venous thromboembolism.

©2008American Society of Plastic Surgeons

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