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

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

PLOS ONE, 2025, vol. 20, issue 11, 1-12

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

Date: 2025
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Persistent link: https://EconPapers.repec.org/RePEc:plo:pone00:0336037

DOI: 10.1371/journal.pone.0336037

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