Miguel Ingelmo

Morbidity and mortality in systemic lupus erythematosus during a 10-year period. A comparison of early and late manifestations in a cohort of 1,000 patients.

In the present study, we assessed the frequency and characteristics of the main causes of morbidity and mortality in systemic lupus erythematosus (SLE) during a 10-year period and compared the frequency of early manifestations with those that appeared later in the evolution of the disease. In 1990, we started a multicenter study of 1,000 patients from 7 European countries. All had medical histories documented and underwent medical interview and routine general physical examination when entered in the study, and all were followed prospectively by the same physicians during the ensuing 10 years (1990–2000).A total of 481 (48.1%) patients presented 1 or more episodes of arthritis at any time during the 10 years, 311 (31.1%) patients had malar rash, 279 (27.9%) active nephropathy, 194 (19.4%) neurologic involvement, 166 (16.6%) fever, 163 (16.3%) Raynaud phenomenon, 160 (16.0%) serositis (pleuritis and/or pericarditis), 134 (13.4%) thrombocytopenia, and 92 (9.2%) thrombosis. When the prevalences of the clinical manifestations during the initial 5 years of follow-up (1990–1995) were compared with those during the ensuing 5 years (1995–2000), most manifestations were found to be more frequent during the initial 5 years. Of the 1,000 patients, 360 (36%) presented infections, 169 (16.9%) hypertension, 121 (12.1%) osteoporosis, and 81 (8.1%) cytopenia due to immunosuppressive agents. Twenty-three (2.3%) patients developed malignancies; the most frequent primary localizations were the uterus and the breast.Sixty-eight (6.8%) patients died, and the most frequent causes of death were similarly divided between active SLE (26.5%), thromboses (26.5%), and infections (25%). A survival probability of 92% at 10 years was found. A lower survival probability was detected in those patients who presented at the beginning of the study with nephropathy (88% versus 94% in patients without nephropathy, p = 0.045). When the causes of death during the initial 5 years of follow-up (1990–1995) were compared with those during the ensuing 5 years (1995–2000), active SLE and infections (28.9% each) appeared to be the most common causes during the initial 5 years, while thromboses (26.1%) became the most common cause of death during the last 5 years.In conclusion, most of the SLE inflammatory manifestations appear to be less common after a long-term evolution of the disease, probably reflecting the effect of therapy as well as the progressive remission of the disease in many patients. Meanwhile, a more prominent role of thrombotic events is becoming evident, affecting both morbidity and mortality in SLE.

Morbidity and mortality in systemic lupus erythematosus during a 5-year period - A multicenter prospective study of 1,000 patients

In the present study we assessed the frequency and characteristics of the main causes of morbidity and mortality in SLE during a 5-year period and analyzed the prognostic significance for morbidity and mortality of the main immunologic parameters used in clinical practice. We started in 1990 a multicenter study of 1,000 patients from 7 European countries. All had medical histories documented and underwent medical interview and routine general physical examination when entered in the study, and all were followed prospectively by the same physicians during the ensuing 5 years (1990-1995). Four hundred thirteen patients (41.3%) presented 1 or more episodes of arthritis, 264 (26.4%) had malar rash, 222 (22.2%) active nephropathy, 139 (13.9%) fever, 136 (13.6%) neurologic involvement, 132 (13.2%) Raynaud phenomenon, 129 (12.9%) serositis (pleuritis and/or pericarditis), 95 (9.5%) thrombocytopenia, and 72 (7.2%) thrombosis. Two hundred seventy patients (27%) presented infections, 113 (11.3%) hypertension, 75 (7.5%) osteoporosis, and 59 (5.9%) cytopenia due to immunosuppressive agents. Sixteen patients (1.6%) developed malignancies, with the most frequent primary localizations the uterus and the breast. Several immunologic parameters (anti-dsDNA or antiphospholipid antibodies) were found to have a predictive value for the development of SLE manifestations during the period of the study. Forty-five patients (4.5%) died; the most frequent causes of death were divided similarly among active SLE (28.9%), infections (28.9%), and thromboses (26.7%). A survival probability of 95% at 5 years was found. A lower survival probability (92%) was detected in those patients who presented at the beginning of the study with nephropathy.

Catastrophic antiphospholipid syndrome: clues to the pathogenesis from a series of 80 patients.

The antiphospholipid syndrome (APS), originally defined as the combination of venous or arterial thrombotic events, recurrent fetal loss, and, frequently, a moderate thrombocytopenia in association with antiphospholipid antibodies (aPL), was subsequently greatly expanded to include diverse conditions, for example, heart valve lesions, adrenal insufficiency, and pulmonary syndromes such as acute respiratory distress syndrome (ARDS), “capillaritis,” and pulmonary alveolar hemorrhage, among others (16, 17). It was then realized that several “microangiopathic syndromes” also existed, as opposed to large vessel occlusive disease. Single organs, such as the kidneys, heart, skin, and brain, have been affected by this “thrombotic microangiopathy” in the context of the “classic” or “simple” APS. The temporal occurrence of thrombotic events in patients with this classic APS usually extends over months or years. In 1992, the existence of a new “subset” was described in which multiple vascular occlusive events, usually affecting small vessels supplying organs and presenting over a short period of time, were the outstanding features. This subset was termed the “catastrophic” APS. Although large vessel occlusions were also present, their prevalence did not in any way approach that in patients with the classic APS. The occlusions occurred over days to several weeks, and more than 50% of patients usually succumbed despite seemingly adequate therapy, including anticoagulation, steroids, etc. (6). In 1998, a comprehensive review article with the clinical and laboratory description of 50 such patients was published (8). In the present paper we describe the clinical and serologic features of the largest series of patients with catastrophic APS hitherto reported, including 30 new cases from interested physicians in many different countries, as well as a comprehensive literature review of 50 additional recently published case reports with this syndrome. This new series, comprising a total of 80 patients, enables us to analyze further and clarify not only the clinical importance of this syndrome, but also its pathogenesis. 0025-7974/01/8006-0355/0 MEDICINE® 80: 355-77, 2001 Vol. 80, No. 6 Copyright

Primary Sjögren syndrome: clinical and immunologic disease patterns in a cohort of 400 patients.

IntroductionSjogren syndrome (SS) is a systemic autoimmune disease that mainly affects the exocrine glands and usually presents as persistent dryness of the mouth and eyes due to functional impairment of the salivary and lacrimal glands (12). In the absence of an associated systemic autoimmune

Systemic lupus erythematosus (SLE) in childhood: analysis of clinical and immunological findings in 34 patients and comparison with SLE characteristics in adults

OBJECTIVE To define the pattern of disease expression in patients with childhood onset systemic lupus erythematosus (SLE). METHODS Prospective analysis of clinical manifestations and immunological features of 34 patients in whom the first manifestations appeared in childhood from a series of 430 unselected patients with SLE. RESULTS Thirty one (91%) patients from the childhood onset group were female and three male (9%) (ratio female/male, 10/1, with no difference compared with the adult onset group). Mean age of this group at disease onset was 11 years (range 5–14) compared with 32 years (15–48) for the remaining patients. The childhood onset patients more often had nephropathy (20%v 9% in adult onset SLE, p=0.04; OR:2.7; 95%CI:1.1, 7), fever (41% v 21%, p=0.006; OR:2.6, 95%CI:1.2, 5.7), and lymphadenopathy (6%v 0.5%, p=0.03, OR: 12.3, 95%CI: 1.2, 127.6), as presenting clinical manifestations. During the evolution of the disease, the childhood onset patients had an increased prevalence of malar rash (79% v 51%, p=0.002; OR:3.7; 95%CI:1.5, 9.5) and chorea (9% v 0%, p<0.0001). This group exhibited a higher prevalence of anticardiolipin antibodies (aCL) of the IgG isotype when compared with the remaining patients (29% v 13%, p=0.017; OR:2.9, 95%CI:1.2, 6.8). No significant differences were found among the other antibodies between the two groups. Childhood onset patients more often received azathioprine (15% v 6%, p=0.00004; OR:11.2; 95%CI:2.8, 44.9) but no differences were detected between the groups concerning side effects or drug toxicity. CONCLUSIONS The presentation and the clinical course of SLE varied in this series of 430 patients depending on their age at disease onset. Nephropathy, fever, and lymphadenopathy were more common in childhood onset patients as presenting clinical manifestations, while malar rash, chorea, and detection of IgG aCL were more common during the evolution of the disease.

Chorea in the antiphospholipid syndrome. Clinical, radiologic, and immunologic characteristics of 50 patients from our clinics and the recent literature.

&NA; Abbreviations used in this article: aCL, anticardiolipin antibodies; ANA, antinuclear antibody; aPL, antiphospholipid antibodies; APS, antiphospholipid syndrome; CT, computed tomography; DVT, deep vein thrombosis; LA, lupus anticoagulant; MRI, magnetic resonance imaging; OC, oral contraceptives; SLE, systemic lupus erythematosus.

Cryoglobulinemia: study of etiologic factors and clinical and immunologic features in 443 patients from a single center.

Cryoglobulins are immunoglobulins (Ig) that precipitate when serum is incubated at temperatures lower than 37 C. The existence of circulating cryoglobulins (cryoglobulinemia) is not always related to the presence of symptomatology, and the term “cryoglobulinemic syndrome” is used when patients present clinical manifestations (44). In 1933, Wintrobe and Buell (55) described cryoprecipitation as a laboratory phenomenon. In 1966, Meltzer and Franklin (27) described the typical clinical symptoms associated with cryoglobulinemia, particularly the triad of purpura, arthralgia, and weakness. In 1974, Brouet et al (7) classified cryoglobulins into 3 types: Type I cryoglobulins were those composed of single monoclonal immunoglobulins, and types II and III were those formed by monoclonal (type II) or polyclonal (type III) IgM with rheumatoid factor activity plus the corresponding antigen (usually polyclonal IgG). For this reason, types II and III are classically referred to as “mixed cryoglobulinemia.” Recently, new types of cryoglobulins have been described (41). Cryoglobulins have been observed in a wide variety of diseases, including malignancies, infections, and systemic autoimmune diseases (17, 40). When there is no demonstrable underlying disease, the condition is called “essential cryoglobulinemia.” Since the initial report (36) in 1990 of the association between cryoglobulinemia and hepatitis C virus (HCV) infection, it has become clear that most cases of socalled essential cryoglobulinemia are in fact associated with HCV infection. This has led to important changes in the etiology, classification, and treatment of cryoglobulinemia in the last 10 years. Several studies have analyzed cryoglobulinemia in patients with HCV infection, but studies performed in groups of patients covering all etiologies of cryoglobulinemia are scarce (7, 14, 17, 19, 30). In this study, we analyzed the etiology, clinical manifestations, and immunologic features of a large series of consecutive patients with cryoglobulinemia from a single center (Hospital Clinic, Barcelona, Spain).

Vascular involvement in Behçet’s disease: relation with thrombophilic factors, coagulation activation, and thrombomodulin

PURPOSE Thrombosis, usually venous, occurs in 10% to 25% of patients with Behçets disease, but its pathogenesis is poorly understood. We evaluated parameters of hemostasis and their relation with thrombosis in a series of patients with Behçets disease. SUBJECTS AND METHODS We studied 38 patients with Behçets disease (13 with venous thrombosis), 38 patients with venous thrombosis without thrombophilia, and 100 control subjects. Levels or presence of protein C, protein S, antithrombin, methylenetetrahydrofolate reductase C677T, factor V Leiden, prothrombin gene G20210A, antiphospholipid antibodies, plasminogen, tissue-type plasminogen activator (tPA), type-1 tPA inhibitor (PAI-1), PAI-1 4G/5G polymorphism, prothrombin fragment 1+2, plasmin/alpha(2)-antiplasmin complexes, thrombomodulin, and activated factors VII and XII were determined. RESULTS There were no deficiencies in protein C, protein S, antithrombin, or factor V Leiden in the patients with Behçets disease, nor was there evidence of most other thrombotic abnormalities. Compared with control subjects, however, the Behçets disease group had elevated mean (+/- SD) levels of prothrombin fragment 1+2 (2091 +/- 1323 pmol/L vs. 804 +/- 398 pmol/L, P <0.001), plasmin/alpha2-antiplasmin complexes (410 +/- 220 microg/L vs. 214 +/- 92 microg/L, P <0.001), and thrombomodulin (37 +/- 24 ng/mL vs. 27 +/- 10 ng/mL, P <0.001). These levels did not differ between patients with or without thrombosis. CONCLUSIONS Thrombophilic factors do not seem to explain most thromboses in Behçets disease. There is increased thrombin generation, fibrinolysis, and thrombomodulin in Behçets disease, but these abnormalities are not related to thrombosis.

Cardiac disease in systemic lupus erythematosus: prospective study of 70 patients.

A prospective two dimensional and Doppler echocardiographic study of 70 consecutive patients with systemic lupus erythematosus (SLE) and 40 controls was carried out. Forty patients (57%) were found to have echocardiographic disturbance. Valvular abnormalities were detected in 31 patients (44%) and in only two controls (5%). Mitral valve abnormalities were the most common findings (23/70 (33%)) with mild or moderate regurgitation the most frequent lesion (16% and 9% respectively). Three patients (4%) had a morphological echocardiographic pattern suggestive of non-infective verrucous vegetations affecting the mitral valve. No patient had haemodynamically significant clinical valve disease. Pericardial effusion was identified in 19 patients (27%), of whom 14 had mild and clinically silent disease. Myocardial abnormalities were found in 14 patients (20%), but clinical features of myocardial dysfunction were present in only one. Patients with antiphospholipid antibodies were found to have an increased prevalence of endocardial lesions, mainly valvular regurgitation. It is concluded that the inclusion of echocardiography in a study protocol of patients with SLE can identify an important subset of patients with cardiac abnormalities, many of which are clinically silent. In addition, the association of antiphospholipid antibodies with endocardial lesions suggests that these antibodies may have a prominent role in the pathogenetic mechanisms of heart valve disease in SLE.

Infections in systemic lupus erythematosus : a prospective and controlled study of 110 patients

We decided to analyse the incidence and characteristics of infection in systemic lupus erythematosus (SLE) and determine the related risks factors. One-hundred and ten SLE patients and 220 controls were prospectively followed up over three years and all the infectious episodes were recorded. A case-control design was established to identify risk factors of infection. Thirty-nine SLE patients suffered at least one infection (36%) versus 53 controls (22%), RR = 1.63 (P < 0.05). The incidence of urinary infections, pneumonia and bacteraemia without known focus was significantly greater in SLE. E. coli was the chief isolated microorganism (21.3%). In the univariate analysis, nephritis, SLE activity, leucopenia, anti-dsDNA levels above 20 IU/mL, CH50 levels under 300 IU/mL, ever use of steroids, daily dose of prednisone higher than 10 mg and ever use of cyclophosphamide were significantly associated with infection. In the multivariate analysis, total serum complement levels below 300 UU/mL and a daily dose of prednisone above 20 mg during at least one month plus ever use of cyclophosphamide were found to be significant (P < 0.0001). We conclude that patients with SLE have an increased overall risk for infection and they are especially prone to develop urinary infection, pneumonia and bacteraemia without focus. Hypocomplementaemia represents an independent predictive factor for infection. It seems mandatory to closely follow up SLE patients with low complement levels and instruct them to report any suspicious sign of infection, especially in those receiving more than 20 mg/day of prednisone who have also been administered cyclophosphamide.