What question did this study set out to answer?

This research aims to determine if prolonged anticoagulation after hip arthroplasty reduces venous thromboembolism risk.

September 23, 2002Archives of Internal Medicine

Prolonged Thromboprophylaxis With Oral Anticoagulants After Total Hip Arthroplasty

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Why the study?

Does extending warfarin prophylaxis for 4 weeks after hospital discharge reduce venous thromboembolic events in patients after total hip arthroplasty?

Key Points

This research aims to determine if prolonged anticoagulation after hip arthroplasty reduces venous thromboembolism risk.
Patients receiving preoperative warfarin were randomized to either stop at discharge or continue for 4 weeks.
The incidence of venous thromboembolism was assessed using compression ultrasonography.
The trial was terminated early after enrolling 360 patients due to significant findings.
Venous thromboembolic complications occurred in 5.1% of control patients compared to 0.5% in the extended group.
The relative risk of venous thromboembolism for controls was 9.4 (95% CI, 1.2-73.5).
One major bleeding incident was reported in the extended prophylaxis group (0.5%; 95% CI, 0.02-3.0).

Structured PICO

Does extending warfarin prophylaxis for 4 weeks after hospital discharge reduce venous thromboembolic events in patients after total hip arthroplasty?

Population

360 consecutive patients who had received warfarin sodium prophylaxis after total hip arthroplasty

Intervention

Warfarin continued for 4 more weeks after hospital discharge

Comparator

Warfarin stopped at the time of hospital discharge

Outcome

Rate of symptomatic and asymptomatic venous thromboembolic events (as shown by compression ultrasonography of the proximal-vein system) occurring during the study periodcomposite

Extending warfarin prophylaxis for 4 weeks after hospital discharge following total hip arthroplasty significantly reduces the risk of venous thromboembolism.

Limitations

Prematurely terminated after the inclusion of the first 360 patients

Discussion

No takes yet. Share an insight, caveat, or question.

Implication

Supports 4-week extended warfarin after hip arthroplasty discharge; confirms benefit of prolonged anticoagulation for VTE prevention.

Cite This Study

Prandoni et al. (2002) studied this question.

synapsesocial.com/papers/6a70e6f635aa2c282ce23bb9 https://doi.org/10.1001/archinte.162.17.1966

Topics

Anticoagulation in AF

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Prolonged Thromboprophylaxis With Oral Anticoagulants After Total Hip Arthroplasty

Key Points

Structured PICO

Limitations

Discussion

Implication

Cite This Study

Topics

Prolonged Thromboprophylaxis With Oral Anticoagulants After Total Hip Arthroplasty

Key Points

Structured PICO

Limitations

Discussion

Implication

Cite This Study

Also Consider

Topics

Also Consider