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  • Title: Risk factors of moderate to severe post-thrombotic syndrome within 2 years in patients with subacute thrombosis: A case-control study.
    Author: Huang T, Ni C, Ding W, Jin Y, Deng X, Jiang X, Chen Z, Hong X.
    Journal: J Vasc Surg Venous Lymphat Disord; 2024 Sep; 12(5):101933. PubMed ID: 38906457.
    Abstract:
    OBJECTIVE: The aim of this study was to study the risk factors influencing the occurrence of moderate to severe post-thrombotic syndrome (PTS) within 2 years in patients with subacute lower extremity deep vein thrombosis (DVT). METHODS: Seventy patients who developed moderate to severe PTS within 2 years after subacute lower extremity DVT from June 2018 to June 2022 were retrospectively selected as the case group. They were matched 1:1 by sex and age (±5 years) with 70 patients who did not develop moderate to severe PTS during the same follow-up period as the control group. Multiple logistic regression, stratified analysis, and interaction analyses were used to explore the risk factors for moderate to severe PTS. RESULTS: The multiple logistic regression model showed that patients with iliofemoral vein thrombosis had a significantly increased risk of developing moderate to severe PTS within 2 years. Patients who underwent intraluminal intervention treatment during hospitalization had a significantly reduced risk. The odds ratios were 4.000 (95% confidence interval, 1.597-10.016) for the femoral-popliteal vein thrombosis and 0.262 (95% confidence interval, 0.106-0.647) for the anticoagulation treatment group. The stratified analysis showed that intraluminal intervention treatment was a protective factor against moderate to severe PTS within 2 years across different strata of hypertension, thrombus type, body mass index, duration of anticoagulation, and wearing compression stockings. Additionally, there was an interaction between thrombus type and treatment method, with intraluminal intervention treatment having a more pronounced effect on preventing moderate to severe PTS in patients with iliofemoral vein thrombosis. CONCLUSIONS: Iliofemoral vein thrombosis is a risk factor for the development of moderate to severe PTS within 2 years in patients with subacute lower extremity DVT. Intraluminal intervention treatment can reduce the risk of moderate to severe PTS, especially in patients with iliofemoral vein thrombosis.
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