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Gastrointestinal (GI) involvement was described to be a poor prognostic factor in systemic necrotizing vasculitis. Its prognostic significance may vary according to clinical presentation and vasculitis subtype. This study investigated risk-factors associated to poor outcome in GI-involvement of vasculitis. Patients with systemic vasculitis as defined by the 2012 Chapel Hill Consensus Conference and presenting with GI involvement were retrospectively included. Baseline characteristics, treatments and outcome were recorded. Primary endpoint was a composite of admission to intensive care unit (ICU), emergency surgical procedure, or death. Two hundred and thirteen patients were included. Vasculitis were distributed as follows: 41% IgA vasculitis, 27% ANCA-associated vasculitis, 17% polyarteritis nodosa (PAN), and 15% other vasculitis. Eighty-three (39%) patients fulfilled the composite primary endpoint within 6 months. Predictive factors associated with the primary endpoint included PAN subtype (OR 3.08, 95% CI 1.29–7.34), performance status (OR 1.40, 1.05–1.87), use of morphine (OR 2.51, 0.87–7.24), abdominal guarding (OR 3.08, 1.01–9.37), ileus (OR 2.29, 0.98–5.32), melena (OR 2.74, 1.17–6.42), increased leukocytes (per G/L, OR 1.05, 1.00–1.10), low hemoglobin (per g/dL, OR 0.80, 0.71–0.91) and increased CRP (log mg/L, OR 1.21, 0.94–1.56). A risk prediction model for the achievement of primary endpoint had a very good performance [C-statistics 0.853 (0.810 to 0.895], and for overall survival as well. Vasculitis presenting with GI involvement have a poor outcome in more than one third of cases. An easy-to-use risk prediction model had a very good performance to predict the admission to ICU, emergency surgical procedure, or death. [Display omitted] • Gastrointestinal involvement in systemic vasculitis is a poor prognostic factor. • Risk factors associated to poor outcome were included in a scoring system. • These features quantified the predicted risk for clinical deterioration. [ABSTRACT FROM AUTHOR]

To describe the characteristics and outcome of patients with giant-cell arteritis (GCA)-related ophthalmologic involvement at diagnosis. In a retrospective single-center cohort of 409 consecutive patients with GCA, we retrieved 104 patients with visual symptoms at GCA diagnosis and we compared them to 104 age- and sex-matched controls without ophthalmologic involvement. Each visual symptom was associated to an ophthalmologic diagnosis that was centrally re-assessed by an ophthalmologist. Compared to controls, patients with visual symptoms showed less fever (p = 0.0006), less polymyalgia rheumatica (p = 0.02) and lower acute phase reactants (p = 0.004). Blurred vision (in 60% of patients), amaurosis fugax (in 18%), diplopia (in 13%) and permanent visual loss (in 9%) were the four visual symptoms described by patients before GCA diagnosis. Anterior ischemic optic neuropathy (AION) was found in 47 (45%) patients, followed by central retinal artery occlusion (CRAO) in 15 (15%). Two patients had both involvements. The delay of glucocorticoids initiation was not different between patients with and without visual symptoms (p = 0.06). Among the 60 patients with initial AION and/or CRAO, 39 (65%) kept definite blindness or important visual damage, although 45 (75%) had received intravenous (IV) pulses of methylprednisolone. A new ischemic event (AION in all cases) occurred in 4% of patients with visual symptoms despite the initiation of treatment. Ophthalmologic involvement was observed in one-quarter of our GCA patients. AION is still associated with the worst visual prognosis, and IV methylprednisolone pulses did not reduce the risk of blindness in our study. [ABSTRACT FROM AUTHOR]

• Vascular inflammation may be linked to Campylobacter coli infection. • Post-infectious vasculitis may cause relapsing fever after an acute infection. • 18F-fluorodeoxyglucose positron emission tomography/computed tomography may be helpful for the diagnosis of post-infectious vasculitis. [ABSTRACT FROM AUTHOR]

Introduction: The antiphospholipid syndrome (APS) (1) is defined by the development of vascular thrombosis, or pregnancy morbidity in the presence of persistent antiphospholipid antibodies (aPL). Antinuclear antibodies (ANA) can be detected in primary APS patients without any clinical systemic autoimmune disease. The presence of ANA antibodies could confer a specific phenotype in primary APS.Objective: To evaluate the characteristics of APS patients with antinuclear antibodies without other autoimmune disease (ANA positive APS patients) in comparison with primary APS without ANA or secondary APS patients with associated systemic lupus erythematosus (SLE).Methods: Clinical and biologic data from 195 APS were retrospectively collected and patients were classified as primary APS with positive ANA (ANA-positive APS), primary APS without any ANA (ANA-negative APS), and SLE-associated APS (SLE-APS).Results: Fourty patients (21%) were classified into ANA-positive APS group, 77 (39%) in ANA-negative APS and 78 (40%) in SLE-APS. In ANA-positive APS patients, 20 patients (51%) had arterial thrombosis, 14 (41%) had veinous thrombosis and 19% had obstetrical complications. There was no difference between the three groups for the frequency of thrombotic manifestations and obstetrical complications. ANA-positive APS patients had more non-criteria manifestations than ANA-negative APS (48% versus 25%; P≤0.01). ANA-positive APS had more triple aPL positivity (59% versus 18%; P<0.001) and more thrombosis and obstetrical recurrences (63% versus 36%; P<0.01) in comparison with ANA-negative APS patients. ANA-positive APS had more triple aPL positivity than SLE-APS patients (54% versus 33%; P<0.05). ANA-positive APS and SLE-APS patients had similar clinical manifestations, and recurrences. Despite a limited follow-up (28 months (11-50)) none of the ANA-positive APS develop SLE. Antiplatelet and anticoagulant therapies were similar for the three groups. SLE-APS patients received more immunomodulatory therapies.Conclusion: ANA positivity in patients with APS enables to individualize a subset of patients with a more severe phenotype. Whereas the ANA positivity does not seem to be associated with the risk to develop SLE, prospective studies with a longer follow-up are necessary, in particular to evaluate the effect of additional therapies in this subset of APS. [ABSTRACT FROM AUTHOR]