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Occurrence of Venous Thromboembolism in Hospitalized Patients with Tuberculosis in Saudi Arabia: A Retrospective Cohort Study

Background: The purpose of this study was to assess the risk of venous thromboembolism (VTE) and the potential need for thromboprophylaxis in patients with tuberculosis (TB). Methods: A total of 103 patients who underwent treatment for TB at the King Khalid University Hospital in Riyadh between February 2015 to May 2018, the percentage of patients diagnosed with TB who developed VTE was assessed. This was a retrospective cohort study conducted at King Khalid University Hospital in Riyadh. Fisher's exact test was used to analyze the categorical variables.P < 0.05 was considered statistically significant. Results: Our data showed the prevalence of VTE in TB patients to be 2.93% (3/103). VTE occurred irrespective of the type of TB (pulmonary and/or extrapulmonary). All TB patients with VTE showed no significant association with factors such as human immunodeficiency virus coinfection, malignancy, and multidrug-resistant TB. Conclusion: Our study showed that TB patients in Saudi Arabia may be at a higher risk for developing VTE and should be carefully monitored as potential candidates for additional thromboprophylaxis; further studies are recommended to establish more reliable assessment and recommendations.