Treatment and outcomes in patients with IgG4-related disease using the IgG4 responder index.

BACKGROUND: IgG4-related disease (IgG4-RD) is an autoimmune disease triggering an inflammatory cascade that leads to fibrosis. Outcome measures are limited and treatment options remain underexplored. OBJECTIVES: To assess the variation of the IgG4 responder index (IgG4-RI) in a cohort of IgG4-RD patients and to explore their treatments and outcomes. METHODS: We studied the clinical phenotype, severity of the disease and response to treatment in an ambispective multicenter cohort study including 14 different hospitals in Spain. All patients met the 2012 international consensus on pathology criteria for diagnosis. RESULTS: Sixty-eight patients were included, with a mean age of 53.4 years and predominance of male sex. The most commonly involved tissues were: retroperitoneum (33%), orbital pseudotumor (28%) and maxillary and paranasal sinuses (24%). IgG4-RI values were higher in patients with multiorgan disease and before treatment. After being treated, IgG4-RI values were lower, in accordance with the high rates of treatment response. Most patients received: glucocorticoids (GC), surgery, azathioprine (AZA), mofetil mycophenolate or rituximab. GC alone, GC plus surgery and GC plus AZA were given in the most of the IgG4-RD disease activity episodes. All treatments had high response rates but relapses and flares were common. CONCLUSIONS: IgG4-RI is a promising outcome measure in IgG4-RD, but still in development. Treatment algorithms are ill defined. GC and rituximab are the drugs with more evidence available. Disease modifying anti-rheumatic drugs may have a role in IgG4-RD and warrant more prospective studies.

Clinical manifestations and long-term outcome of anti-Jo1 antisynthetase patients in a large cohort of Spanish patients from the GEAS-IIM group.

OBJECTIVE: To evaluate the clinical manifestations, long-term clinical outcome and longitudinal pulmonary function in a large cohort of Spanish patients with anti-Jo1 antibodies. METHODS: We retrospectively analyzed the clinical data and lung function parameters of 148 anti-Jo1 patients recruited from a multicentre registry including 18 Spanish hospitals. A composite endpoint was defined, comprising death due to respiratory failure directly related to antisynthetase syndrome (ASS), the need for long-term oxygen therapy or lung transplantation. RESULTS: Median follow-up was 78.3 months. Clinical presentation patterns at onset are as follows: isolated interstitial lung disease (ILD) (32.4%), isolated myositis (26.9%), concomitant myositis and ILD (22.8%), and isolated polyarthritis (17.9%). Myositis with ILD was the most frequent final clinical phenotype (67.6%). In most ASS patients, ILD was a non-progressive disease, tending to stabilize with therapy. The endpoint was reached in a significantly larger number of ILD patients with dyspnea at onset than those with paucisymptomatic or asymptomatic forms (p = 0.01). A steady FVC decrease was the hallmark of patients with end-stage lung disease. Estimated survival rates were 87.7% and 75.4% at 5 and 10 years, respectively. Cancer (p = 0.02) and advanced age at ASS diagnosis (p < 0.0001) were related to poorer survival. Mortality was significantly higher than in the general Spanish population, with a standardised mortality ratio (95% CI) of 4.03 (2.79-5.64). CONCLUSIONS: Anti-Jo1 ASS is a heterogeneous syndrome. ILD in ASS under immunosuppressive therapy is mainly a non-progressive disease. Dyspnea at ILD onset and a steady FVC decrease over time were related to a poorer respiratory prognosis.

IgG4-Related Disease: Results From a Multicenter Spanish Registry.

IgG4-related disease (IgG4-RD) is a rare entity consisting of inflammation and fibrosis that has been described in multiple organs. Concrete diagnostic criteria have been established recently and there is a lack of large series of patients.To describe the clinical presentation, histopathological characteristics, treatment and evolution of a series of IgG4-RD Spanish patients.A retrospective multicenter study was performed. Twelve hospitals across Spain included patients meeting the current 2012 consensus criteria on IgG4-RD diagnosis.Fifty-five patients were included in the study, 38 of whom (69.1%) were male. Median age at diagnosis was 53 years. Thirty (54.5%) patients were included in the Histologically Highly Suggestive IgG4-RD group and 25 (45.5%) in the probable IgG4-RD group. Twenty-six (47.3%) patients had more than 1 organ affected at presentation. The most frequently affected organs were: retroperitoneum, orbital pseudotumor, pancreas, salivary and lachrymal glands, and maxillary sinuses.Corticosteroids were the mainstay of treatment (46 patients, 83.6%). Eighteen patients (32.7%) required additional immunosuppressive agents. Twenty-four (43.6%) patients achieved a complete response and 26 (43.7%) presented a partial response (<50% of regression) after 22 months of follow-up. No deaths were attributed directly to IgG4-RD and malignancy was infrequent.This is the largest IgG4-RD series reported in Europe. Patients were middle-aged males, with histologically probable IgG4-RD. The systemic form of the disease was frequent, involving mainly sites of the head and abdomen. Corticosteroids were an effective first line treatment, sometimes combined with immunosuppressive agents. Neither fatalities nor malignancies were attributed to IgG4-RD.

Lesiones descamativas en palmas y plantas: caso clínico / Squamous lesions on palms and plantar areas: clinical case

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