Purpose <p>This study aimed to evaluate the necessity of anticoagulant therapy with an Xa inhibitor for asymptomatic acute distal lower-limb deep vein thrombosis (DVT) detected on ultrasonography after total hip arthroplasty (THA).</p> Methods <p>After exclusions, patients who underwent primary cementless THA were divided into treatment and no-treatment groups based on whether they received anticoagulant therapy with an Xa inhibitor for asymptomatic acute distal lower-limb DVT. Residual distal lower-limb DVT at 3&#xa0;months, incidence of proximal DVT, and symptomatic venous thromboembolism (VTE) after THA were compared between the groups.</p> Results <p>A total of 574 patients met the inclusion criteria (treatment group, n = 287; no-treatment group, n = 287). Residual distal lower-limb DVT at 3&#xa0;months was detected in 3 patients (1.0%) in the treatment group and in 10 patients (3.5%) in the no-treatment group. No symptomatic VTE was observed in either group. No significant difference was observed between the two groups, although the no-treatment group tended to have a higher residual rate of acute distal lower-limb DVT.</p> Conclusion <p>The necessity of anticoagulant therapy for asymptomatic acute distal lower-limb DVT was not confirmed.</p>

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Comparing residual thrombosis and venous thromboembolism outcomes between patients treated with or without anticoagulant therapy for acute distal lower-limb deep vein thrombosis after total hip arthroplasty

  • Shine Tone,
  • Yohei Naito,
  • Hiroki Wakabayashi,
  • Akihiro Sudo,
  • Masahiro Hasegawa

摘要

Purpose

This study aimed to evaluate the necessity of anticoagulant therapy with an Xa inhibitor for asymptomatic acute distal lower-limb deep vein thrombosis (DVT) detected on ultrasonography after total hip arthroplasty (THA).

Methods

After exclusions, patients who underwent primary cementless THA were divided into treatment and no-treatment groups based on whether they received anticoagulant therapy with an Xa inhibitor for asymptomatic acute distal lower-limb DVT. Residual distal lower-limb DVT at 3 months, incidence of proximal DVT, and symptomatic venous thromboembolism (VTE) after THA were compared between the groups.

Results

A total of 574 patients met the inclusion criteria (treatment group, n = 287; no-treatment group, n = 287). Residual distal lower-limb DVT at 3 months was detected in 3 patients (1.0%) in the treatment group and in 10 patients (3.5%) in the no-treatment group. No symptomatic VTE was observed in either group. No significant difference was observed between the two groups, although the no-treatment group tended to have a higher residual rate of acute distal lower-limb DVT.

Conclusion

The necessity of anticoagulant therapy for asymptomatic acute distal lower-limb DVT was not confirmed.