RT Journal Article SR Electronic T1 Venous Thromboembolism in Systemic Sclerosis: Prevalence, Risk Factors, and Effect on Survival JF The Journal of Rheumatology JO J Rheumatol FD The Journal of Rheumatology SP 942 OP 946 DO 10.3899/jrheum.170268 VO 45 IS 7 A1 Sindhu R. Johnson A1 Nabil Hakami A1 Zareen Ahmad A1 Duminda N. Wijeysundera YR 2018 UL http://www.jrheum.org/content/45/7/942.abstract AB Objective. Whether systemic sclerosis (SSc) confers increased risk of venous thromboembolism (VTE) is uncertain. We evaluated the prevalence, risk factors, and effect of VTE on SSc survival.Methods. A cohort study was conducted of subjects with SSc who fulfilled the American College of Rheumatology/European League Against Rheumatism classification criteria between 1970 and 2017. Deep vein thrombosis was defined as thrombus on extremity ultrasound. Pulmonary embolism was defined as thrombus on thorax computed tomography angiogram. Risk factors for VTE and time to all-cause mortality were evaluated.Results. Of the 1181 subjects, 40 (3.4%) experienced VTE events. The cumulative incidence of VTE was 2.7 (95% CI 1.9–3.7) per 1000 patient-years. Pulmonary arterial hypertension (PAH; OR 3.77, 95% CI 1.83–8.17), peripheral arterial disease (OR 5.31, 95% CI 1.99–12.92), Scl-70 (OR 2.45, 95% CI 1.07–5.30), and anticardiolipin antibodies (OR 5.70, 95% CI 1.16–21.17) were predictors of VTE. There were 440 deaths. There was no difference in survival between those with and without VTE (HR 1.16, 95% CI 0.70–1.91). Interstitial lung disease (HR 1.54, 95% CI 1.27–1.88) and PAH (HR 1.35, 95% CI 1.10–1.65) were predictors of mortality.Conclusion. The risk of VTE in SSc is comparable to the general population. The presence of PAH, peripheral arterial disease, Scl-70, and anticardiolipin antibodies are risk factors for VTE. VTE does not independently predict SSc survival.