Common Variable Immunodeficiency in Systemic Lupus Erythematosus

https://doi.org/10.1016/j.semarthrit.2006.09.005Get rights and content

Objective

The development of common variable immunodeficiency (CVID) or hypogammaglobulinemia in systemic lupus erythematosus (SLE) is rare. The purpose of this article is to provide a detailed review of lupus-associated CVID and to identify clinical characteristics and laboratory features in patients with SLE-associated CVID.

Methods

We describe 2 patients with SLE and CVID and review the cases published in the English literature highlighting both the demographic and the clinical characteristics and the laboratory and therapeutic aspects of this disorder.

Results

Detailed descriptions of 18 patients were available; 89% were females with a mean age at the onset of SLE of 23.8 years. In 50% of patients CVID developed within the first 5 years after the diagnosis of SLE. All patients had been treated with corticosteroids and 72% had also received immunosuppressive therapy. Sinopulmonary infections were the most frequent symptom. SLE disease activity decreased after the development of CVID in 67% of patients. Most patients (89%) were treated with gammaglobulin therapy. The most notable immunological feature was a reduced number or percentage of B-cells in 60% of patients.

Conclusions

CVID should be suspected in any SLE patient with recurrent sinopulmonary infections in the absence of SLE activity and/or immunosuppressive treatment.

Section snippets

Literature Review

A review of the published literature using a search of the entire PubMed database made available by the National Library of Medicine was undertaken. The search included articles from 1982 to 2005. Key articles on SLE and hypogammaglobulinemia were identified, and additional articles of interest were selected from the bibliographies of the published literature.

Flow Cytometry Analysis

Flow cytometry analysis to identify lymphocyte subsets was performed in our 2 SLE patients with CVID and 38 SLE patients without CVID.

Case 1

In June 2002, an 18-year-old white woman was admitted to our hospital with the diagnosis of epilepsy and SLE, characterized by malar rash, serositis, fever, abdominal pain, and hemolytic anemia with a positive Coombs test. Symptoms were controlled with intravenous (IV) high doses of methylprednisolone. After discharge, she was treated with prednisone (20 mg/d) and azathioprine (50 mg/12 h). Despite this treatment, her disease remained active, with malar rash, diffuse alopecia, and

Flow cytometry analysis

Lymphocyte subsets in these 2 patients were compared with the percentage of these cells in 38 patients with SLE without CVID. No differences in the percentage of CD3+CD4+, CD3+CD8+ cells nor in the CD4/CD8 ratio were observed. The main differences found were that both patients had a lower percentage of natural killer cells (4 and 5%, respectively, in contrast with 14% in SLE patients without CVID) and an almost absent number of B-cells (≤1%), as shown in Table 1 and Fig. 1.

Literature review

During the last 24 years (1982 to 2006) detailed descriptions of 16 SLE patients with CVID were reported in 10 articles in the English literature (1, 2, 3, 4, 5, 6, 7, 8, 9, 10). These patients, together with the 2 described above, are included in this review (Table 2). It is difficult to estimate the prevalence and incidence of CVID in SLE from case reports and small series.

Sixteen patients of the 18 included in this review were women (89%), with a mean age at onset of SLE of 23.8 years (range

Discussion

Excluding selective IgA deficiency, CVID is recognized as the most prevalent primary immunodeficiency disease. Search of English medical literature identified detailed descriptions of 16 SLE patients with CVID (1, 2, 3, 4, 5, 6, 7, 8, 9, 10). It is clear that definite conclusions cannot be drawn from such a review of individual cases. In addition, details were occasionally missing from some of the cases in the literature. Nevertheless, some valuable information and practical points can be

Acknowledgment

Susana Mellor-Pita is funded by the Instituto de Salud Carlos III (N CM04/00161).

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