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A simple venous thromboembolism prophylaxis protocol for patients undergoing bariatric surgery
Eldo E Frezza1, Mitchell S Wachtel
1Department of Surgery, Division of General Surgery, Texas Tech University Health Sciences Center, MOP Building, Suite 380, 3502 9th Street, Lubbock, TX 79415, USA. eldo.frezza@ttuhsc.edu
Obesity (Silver Spring, Md.)
|December 1, 2006
Summary
This study presents a simple prophylaxis regimen to prevent venous thromboembolism in bariatric surgery patients. The regimen significantly reduced the risk of this complication and decreased hemorrhage rates.
Area of Science:
- Bariatric Surgery
- Cardiovascular Surgery
- Thrombosis Prevention
Background:
- Pulmonary embolism is a significant cause of mortality in bariatric surgery patients.
- Existing prophylaxis regimens lack simplicity and comprehensive application.
- A need exists for an easily implementable strategy to mitigate thromboembolic events.
Purpose of the Study:
- To introduce and evaluate a straightforward prophylaxis regimen for bariatric surgery patients.
- To reduce the incidence of venous thromboembolism (VTE) in this high-risk population.
- To minimize postoperative hemorrhage associated with VTE prophylaxis.
Main Methods:
- A cohort of 150 bariatric surgery patients was assessed.
- All patients received pre- and postoperative anticoagulation with enoxaparin or unfractionated heparin.
- High-risk patients received inferior vena cava filters or intraoperative heparin, plus 3 months of warfarin; staple lines were oversewn to prevent hemorrhage.
Main Results:
- No patient in the study experienced venous thromboembolism, reducing the risk to less than 2% (p < 0.05).
- Hemorrhage requiring transfusion occurred in 4 of the initial 20 patients.
- After oversewing staple lines, none of the remaining 130 patients required transfusion (p < 0.05).
Conclusions:
- Stratifying patients into high- and low-risk categories for VTE is crucial.
- A universal pre- and postoperative anticoagulation strategy is recommended.
- High-risk patients require enhanced measures including filters or intraoperative heparin and extended warfarin therapy; staple line reinforcement may reduce bleeding.
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