Risk factors for Early-Onset Venous Thromboembolism in Pediatric Inflammatory Bowel Disease

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ID: 318605
2026
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Abstract
Abstract Background Inflammatory bowel disease (IBD) can lead to a hypercoagulable state, particularly at initial diagnosis. Consequently, venous thromboembolism (VTE) represents a serious complication associated with IBD. For children, the risk of VTE near the time of IBD diagnosis has not yet been quantified, and guidance for VTE prophylaxis remains unclear. Methods This multisite matched case-control study examined pediatric patients with a new diagnosis of IBD from 2019-2024. Cases were those who developed VTE ≤30 days prior or ≤ 90 days post IBD diagnosis. Controls were newly diagnosed IBD patients without VTE. Each case was matched to 2-6 controls based on IBD subtype and age at IBD diagnosis. Demographics, laboratory values, prothrombotic risk factors and treatments were compared between matched cases and controls using conditional logistic regression stratified, by case sets. Results Study subjects included 15 cases and 52 controls, resulting in 70 matched pairs. Factors associated with early VTE included lower hemoglobin (p = 0.003), lower albumin (p = 0.002), corticosteroids use (p = 0.01), central line (p = 0.002), and any surgery ≤90 days post IBD diagnosis (p = 0.001). No association with VTE was detected for platelets, C-reactive protein, fecal calprotectin, family history of IBD or body mass index. Conclusions Albumin, hemoglobin, steroid use, central line, and any surgery ≤90 days post IBD diagnosis were associated with early VTE. These risk factors may be used in a future prediction model to stratify newly diagnosed pediatric IBD patients by their risk for early VTE development.
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Authors Caroline Chinchilla Putzeys, Nina Gautam, Andrew Ritchey, A Kimberly, Umesh Sharma, Lucia Mirea, Laura Hamant, Hilary K. Michel, Elizabeth Hilow, Ashish Patel, Sabina Ali, J Adler, Jonathan Moses, Brad Pasternak
Journal Crohn s & Colitis 360
Year 2026
DOI
10.1093/crocol/otag034
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