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Prognostic factors influencing venous patency after thrombectomy in patients with May-Thurner syndrome

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  • Chang Hoon Oh
  • In Chul Nam
  • Doo Ri Kim
  • Jung Ho Won
  • Hyoung Nam Lee
  • Sung-Joon Park
  • Youngjong Cho

Abstract

Purpose: To evaluate the prognostic significance of venographic findings and procedural factors for long-term venous patency after thrombectomy in patients with May-Thurner syndrome (MTS)-associated deep vein thrombosis (DVT). Materials and Methods: This retrospective cohort study included 75 patients with iliofemoral DVT secondary to MTS, who underwent thrombectomy between January 2011 and April 2023. Key venographic findings—venous stenosis (≥50%), venous spur, and persistent collaterals—along with stent placement and diameter were analyzed. The primary outcome was 24-month venous patency, assessed using univariate tests, Kaplan–Meier survival analysis, and multivariate Cox proportional hazards modeling. Results: At 24 months, 58 patients (77.3%) maintained venous patency, whereas 17 (22.7%) experienced reocclusion. Univariate and Kaplan–Meier analyses showed that stenosis ≥50%, venous spur, persistent collaterals, and absence of stent placement were significantly associated with reduced patency (all p

Suggested Citation

  • Chang Hoon Oh & In Chul Nam & Doo Ri Kim & Jung Ho Won & Hyoung Nam Lee & Sung-Joon Park & Youngjong Cho, 2025. "Prognostic factors influencing venous patency after thrombectomy in patients with May-Thurner syndrome," PLOS ONE, Public Library of Science, vol. 20(11), pages 1-12, November.
    • Handle: RePEc:plo:pone00:0336037
    DOI: 10.1371/journal.pone.0336037
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