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Clots in colitis: Thromboembolism and beyond

Hakim Rahmoune1,2, Nada Boutrid3

  • 1Department of Medicine, LIRSSEI Research Laboratory, Faculty of Medicine, University of Setif-1, Setif 19000, Algeria.

World Journal of Clinical Cases
|August 29, 2025
PubMed

Insights

Patients with ulcerative colitis (UC) face a higher risk of venous thromboembolism (VTE). This risk is influenced by inflammation, medications, surgery, and potentially genetics, necessitating effective prevention strategies.

Area of Science:

  • Gastroenterology
  • Hematology
  • Clinical Medicine

Background:

  • Ulcerative colitis (UC) patients exhibit elevated risks for thromboembolic events, especially venous thromboembolism (VTE).
  • VTE incidence in UC is substantially higher compared to the general population, indicating a significant clinical concern.

Discussion:

  • Colectomy in UC patients presents a notable VTE risk, exacerbated by pre-operative tofacitinib exposure (up to 22%).
  • The GETAID FOCUS study highlights a pooled VTE prevalence of approximately 12% in UC patients.
  • Thromboembolism risk in UC is multifactorial, involving chronic inflammation, diverse medications, surgical procedures, and potential genetic predispositions.

Key Insights:

  • UC is a significant risk factor for VTE, encompassing deep vein thrombosis and pulmonary embolism.
  • Surgical interventions like colectomy and specific medications (e.g., tofacitinib) can further elevate VTE risk in UC patients.
  • Understanding the multifactorial nature of VTE in UC is critical for risk assessment and management.

Outlook:

  • Further research is needed to elucidate genetic factors contributing to VTE in UC.
  • Developing targeted preventive strategies for VTE in UC patients is essential for improving outcomes.
  • Enhanced monitoring and risk stratification protocols may reduce thromboembolic event rates in this population.

Keywords:
IncidenceRiskSurgeryUlcerative colitisVenous thromboembolism

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