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Eric Hachulla

Publications and source records attributed to Eric Hachulla.

35 records · Page 2Linked to original sources

[Inflammatory aortitis].

PRINCIPLE AND OTHER CAUSES: Takayasu's arteritis, giant cell arteritis and Behçet's disease are the three main causes of inflammatory aortitis. More rarely, aortitis can be observed in Cogan's syndrome, atrophic polychondritis, sarcoidosis, ankylosing spondylitis and in rheumatoid arthritis. RISKS OF PROGRESSION: Takayasu's arteritis is distinct with the development of stenotic lesions of the aorta. With the other causes, aortitis can be complicated by ectasia or even aneurysm, with the risk of rupture. Indeed, during giant cell arteritis, patients are 17 times more likely to develop thoracic aortic aneurysm. Aortic regurgitation is a frequent complication of inflammatory aortitis. Sometimes, aortitis is only manifested by general signs such as fever or an inflammatory syndrome. SUPPLEMENTARY EXPLORATIONS: Recent advances in diagnosis and follow-up of patients with inflammatory aortitis concern the use of non-invasive imaging techniques: Doppler ultrasonography, computed tomography with injection of a contrast product and magnetic resonance imaging, which currently replace the aortography. DIAGNOSTIC PROBLEMS: Infectious aortitis, inflammatory atheromatous aneurysm and retroperitoneal fibrosis are sometimes misleading differential diagnoses.

Aortitis↗

Inefficacy of infliximab in primary Sjögren's syndrome: results of the randomized, controlled Trial of Remicade in Primary Sjögren's Syndrome (TRIPSS).

OBJECTIVE: There is no effective treatment for patients with primary Sjögren's syndrome (SS). Since tumor necrosis factor alpha (TNF alpha) could be a key element in the pathogenesis of primary SS, we conducted a multicenter, randomized, double-blind, placebo-controlled trial to evaluate the effect of infliximab in primary SS. METHODS: A total of 103 patients with primary SS were randomly assigned to receive infliximab infusions (5 mg/kg) or placebo at weeks 0, 2, and 6 and were followed up for 22 weeks. All patients fulfilled the new American-European Consensus Group criteria for SS and had active disease as assessed by values >50 mm on 2 of 3 visual analog scales (VAS) (0-100 mm) that evaluated joint pain, fatigue, and buccal, ocular, skin, vaginal, or bronchial dryness. A favorable overall response was defined as the patient having > or =30% improvement between weeks 0 and 10 in the values on 2 of the 3 VAS. Secondary end points were values on each VAS separately, the number of tender and swollen joints, the basal salivary flow rate, results of the Schirmer test for lacrimal gland function, the focus score on labial salivary gland biopsy, the level of C-reactive protein, and the erythrocyte sedimentation rate evaluated at weeks 0, 10, and 22, as well as quality of life evaluated by use of the generic Short Form 36 questionnaire administered at weeks 0, 10, and 22. RESULTS: At week 10, 26.5% of patients receiving placebo and 27.8% of patients treated with infliximab had a favorable overall response (P = 0.89), and at week 22, 20.4% of the placebo group and 16.7% of the infliximab group had a favorable response (P = 0.62). In addition, the 2 groups did not differ in any of the secondary end points over the 22 weeks of the trial. Severe adverse events reported in the infliximab group did not differ from those observed in previous studies. CONCLUSION: This randomized, double-blind, placebo-controlled study of an anti-TNF agent did not show any evidence of efficacy of infliximab in primary SS.

Aged↗

Association between systemic sclerosis and breast cancer: eight new cases and review of the literature.

Several studies have demonstrated an increased frequency of cancer in patients with systemic sclerosis (SSc), specially lung and breast cancers. The pathogenesis of the association between SSc and cancer is not fully established. The aim of this study was to describe new cases of the association between SSc and breast cancer and to perform a review of the literature. We retrospectively studied the medical files of eight patients followed in our institution for SSc and breast cancer. We analyzed them with data available in the literature for a total of 46 patients. Cutaneous extension of SSc was clearly mentioned in 17 cases: the SSc was limited in 10 cases and diffuse in 7 cases The median age at the diagnosis of cancer was 54 years (range: 40-71). The median duration between SSc onset and breast cancer diagnosis was 11.5 months (range: 0-288). The duration between SSc onset and breast cancer diagnosis was < or = 12 months in 27 of 44 patients (61.4%), and in 11 (25%) of them the diagnosis of both diseases was made simultaneously. It was clearly mentioned for 35 patients whether the diagnosis of breast cancer was made before or after the onset of SSc. The diagnosis of breast cancer was made before SSc onset in 17 of 35 patients (48.6%) and after SSc onset in 18 of 35 patients (51.4%). For 33 patients, the follow-up was available: 18 (54.5%) died, 11 (33.3%) of them within the 1st year after the diagnosis of the cancer. For none of the patients did the anticancer treatment improve the SSc. The close temporal relationship between SSc onset and breast cancer diagnosis is highly suggestive of a pathophysiological link. SSc is probably not a paraneoplastic disease since the anticancer treatment has no influence on the evolution of SSc. However, it can be suggested that SSc could be a disease facilitating breast cancer and/or metastases development.

Adult↗

Neurologic manifestations in primary Sjögren syndrome: a study of 82 patients.

Neurologic involvement occurs in approximately 20% of patients with primary Sjögren syndrome (SS). However, the diagnosis of SS with neurologic involvement is sometimes difficult, and central nervous system (CNS) manifestations have been described rarely. We conducted the current study to describe the clinical and laboratory features of SS patients with neurologic manifestations and to report their clinical outcome. We retrospectively studied 82 patients (65 women and 17 men) with neurologic manifestations associated with primary SS, as defined by the 2002 American-European criteria. The mean age at neurologic onset was 53 years. Neurologic involvement frequently preceded the diagnosis of SS (81% of patients). Fifty-six patients had CNS disorders, which were mostly focal or multifocal. Twenty-nine patients had spinal cord involvement (acute myelopathy [n = 12], chronic myelopathy [n = 16], or motor neuron disease [n = 1]). Thirty-three patients had brain involvement and 13 patients had optic neuropathy. The disease mimicked relapsing-remitting multiple sclerosis (MS) in 10 patients and primary progressive MS in 13 patients. We also recorded diffuse CNS symptoms: some of the patients presented seizures (n = 7), cognitive dysfunction (n = 9), and encephalopathy (n = 2). Fifty-one patients had peripheral nervous system involvement (PNS). Symmetric axonal sensorimotor polyneuropathy with a predominance of sensory symptoms or pure sensory neuropathy occurred most frequently (n = 28), followed by cranial nerve involvement affecting trigeminal, facial, or cochlear nerves (n = 16). Multiple mononeuropathy (n = 7), myositis (n = 2), and polyradiculoneuropathy (n = 1) were also observed. Thirty percent of patients (all with CNS involvement) had oligoclonal bands. Visual evoked potentials were abnormal in 61% of the patients tested. Fifty-eight patients had magnetic resonance imaging (MRI) of the brain. Of these, 70% presented white matter lesions and 40% met the radiologic criteria for MS. Thirty-nine patients had a spinal cord MRI. Abnormalities were observed only in patients with spinal cord involvement. Among the 29 patients with myelopathy, 75% had T2-weighted hyperintensities. Patients with PNS manifestations had frequent extraglandular complications of SS. Anti-Ro/SSA or anti-La/SSB antibodies were detected in 21% of patients at the diagnosis of SS and in 43% of patients during the follow-up (mean follow-up, 10 yr). Biologic abnormalities were more frequently observed in patients with PNS involvement than in those with CNS involvement (p < 0.01). Fifty-two percent of patients had severe disability, and were more likely to have CNS involvement than PNS involvement (p < 0.001). Treatment by cyclophosphamide allowed a partial recovery or stabilization in patients with myelopathy (92%) or multiple mononeuropathy (100%). The current study underlines the diversity of neurologic complications of SS. The frequency of neurologic manifestations revealing SS and of negative biologic features, especially in the event of CNS involvement, could explain why SS is frequently misdiagnosed. Screening for SS should be systematically performed in cases of acute or chronic myelopathy, axonal sensorimotor neuropathy, or cranial nerve involvement. The outcome is frequently severe, especially in patients with CNS involvement. Our study also underlines the efficacy of cyclophosphamide in myelopathy and multiple neuropathy occurring during SS.

Adult↗

Multiplex reverse transcription polymerase chain reaction assessment of sialyltransferase expression in peripheral blood mononuclear cells in systemic sclerosis.

OBJECTIVE: To assess sialyltransferase expression in peripheral blood mononuclear cells (PBMC) of patients with systemic sclerosis (SSc) and to correlate this expression with the clinical features of the disease. METHODS: Using a multiplex reverse transcription polymerase chain reaction (RT-PCR) method, we simultaneously measured the expression of 5 sialyltransferases (ST3Gal IV, ST3Gal III, ST3Gal I, ST3Gal II, and ST6Gal I) and of one reference housekeeping gene, Tata box binding protein (TBP), in PBMC of 28 patients with SSc and 18 healthy controls. Expression of each sialyltransferase was defined by the ratio sialyltransferase amplification product intensity/TBP amplification product intensity, and was evaluated according to the skin sclerosis extension and the presence of lung fibrosis and/or of pulmonary hypertension. RESULTS: ST3Gal I and ST6Gal I expressions were lower in patients with SSc than in healthy controls (median 0.48 vs 1.30, p < 0.0001, and 0.71 vs 1.96, p < 0.01, respectively). No difference was observed for ST3Gal III and ST3Gal IV expression. ST3Gal IV/ST6Gal I ratio was higher in SSc patients than in controls (0.37 vs 0.28, p = 0.03). ST3Gal II was either weakly or more often not expressed in both groups. Ten patients had isolated pulmonary hypertension. They had higher ST3Gal IV expression than patients without pulmonary hypertension (0.73 vs 0.29, p = 0.04) and a higher ST3Gal IV/ST6Gal I ratio than patients without pulmonary hypertension (1.03 vs 0.27, p = 0.03) and controls (1.03 vs 0.28, p = 0.02). No difference was found in the sialyltransferase expression and soluble E-selectin concentration according to the cutaneous sclerosis extension or the presence of lung fibrosis. CONCLUSION: Sialyltransferase expression is modified in PBMC of patients with SSc compared to healthy subjects. Low ST6Gal I expression associated with normal ST3Gal IV expression, resulting in a higher ST3Gal IV/ST6Gal I ratio, suggests an enhanced expression of Sialyl-LewisX at the surface of PBMC in SSc, and therefore an active interaction between activated endothelial cells and PBMC through the binding between E-selectin and Sialyl-LewisX. This suggested that higher expression of Sialyl-LewisX concerned patients with isolated pulmonary hypertension more specifically. Binding between PBMC surface Sialyl-LewisX and activated endothelial cell E-selectin might therefore play a role in the pathogenesis of SSc-related isolated pulmonary hypertension.

Adult↗

Autoantibodies against alpha-fodrin in Sjögren's syndrome with neurological manifestations.

OBJECTIVE: To investigate the diagnostic value of autoantibodies against alpha-fodrin in patients with Sjögren's syndrome (SS) with neurological manifestations compared to SS patients without neurological manifestations, a control group, and patients with other neurological autoimmune diseases including systemic lupus erythematosus (SLE) with neurological manifestations and multiple sclerosis (MS). METHODS: We evaluated alpha-fodrin autoantibodies in 31 patients with SS with neurological manifestations, 53 SS patients without neurological symptoms, 38 patients with SLE, 60 with MS, and 160 controls. RESULTS: Twenty of the 31 SS patients with neurological manifestations (64.5%) had an increased concentration of IgA and/or IgG anti-alpha-fodrin. This was not statistically different from that of SS patients without neurological symptoms (73.6%), but was higher than the number with SSA/SSB antibodies, which were found in 15 (48%) of our SS patients without neurological manifestations. When the results of the 2 tests were combined, 28 of the 31 (90.3%) patients had positive autoantibodies (alpha-fodrin and/or SSA/SSB). Alpha-fodrin antibodies were increased in 8 (13.3%) of the 60 patients with MS, in 6 (15.7%) of 38 patients with SLE, and in 10 (6.3%) of 160 controls. CONCLUSION: Our results confirm that alpha-fodrin antibodies are an additional diagnostic tool for SS. This test is of particular interest for patients with SS with neurological manifestations, in whom anti SSA/SSB antibodies are less frequently found.

Adult↗

Thoracic outlet: assessment with MR imaging in asymptomatic and symptomatic populations.

PURPOSE: To compare the dynamic modifications of the thoracic outlet in asymptomatic volunteers and symptomatic patients and assess the presence and location of vasculonervous compressions in these two populations. MATERIALS AND METHODS: Thirty-five healthy volunteers and 54 patients with clinical symptoms of thoracic outlet syndrome (TOS) underwent magnetic resonance (MR) imaging of the thoracic outlets with their arms alongside their bodies and after a postural maneuver. Measurements were obtained at the interscalene triangle (thickness of anterior scalene muscle, interscalene angle), at the costoclavicular space (minimum costoclavicular distance, distance between inferior border of subclavius muscle and the anterior chest wall, maximum thickness of subclavius muscle, angle between first rib shaft and horizontal), and at the retropectoralis minor space (distance between posterior border of pectoralis minor muscle and posterior lining of axilla at the passage of the axillary vessels, thickness of pectoralis minor muscle). The presence and location of vasculonervous compressions were also assessed. Group data were analyzed with the Student t test. RESULTS: Patients with TOS had a smaller costoclavicular distance after the postural maneuver (P <.001), a thicker subclavius muscle in both arm positions (P <.001), and a wider retropectoralis minor space after the postural maneuver (P <.001) than did volunteers. Venous compressions after the postural maneuver were observed in 47% of volunteers and 63% of patients at the prescalene space, in 54% of volunteers and 61% of patients at the costoclavicular space, and in 27% of volunteers and 30% of patients at the retropectoralis minor space. Arterial and nervous compressions, respectively, were seen in 72% and 7% of patients. No arterial or nervous compression was seen in volunteers. Except for venous thrombosis, vasculonervous compressions were demonstrated only with arm elevation. Only three thoracic outlet measurements differed significantly in both populations. CONCLUSION: MR imaging appeared helpful in demonstrating the location and cause of arterial or nervous compressions.

Adult↗

[Cardiac and pulmonary involvement in scleroderma].

Systemic sclerosis is a connective tissue disease characterised by microvascular involvement and fibrosis affecting skin, lung, heart and intestinal tract. Sixty percent of deaths are secondary to heart or lung involvement and (or) to pulmonary hypertension. Clinical expression of these complications is present only in patients with the most severe problems. Therefore, it is appropriate to systematically and repeatedly look for these complications, even in asymptomatic patients. Heart involvement can present as cardiomyopathy, pericarditis, conduction or repolarisation abnormalities and arrhythmia, sometimes leading to sudden death. Pulmonary hypertension is due either to direct involvement of pulmonary arteries or is secondary to lung fibrosis. Doppler echocardiography and lung function tests are systematically and repeatedly proposed to screen patients for pulmonary hypertension at initial diagnosis and during follow-up. Right heart catheterisation ascertains the diagnosis of pulmonary hypertension. Chronic pulmonary interstitial fibrosis is the most frequent manifestation of lung involvement. High resolution computed tomography is the method of choice to make the diagnosis and to assess the severity of the lesions. Treatment is not completely standardised. However, a severe and rapidly progressing lung involvement is probably a good indication of immunosuppressive agents, such as cyclophosphamide.

Diagnosis, Differential↗

[Symptomatic intermittent fever of inflammatory diseases].

Intermittent fever has a wide variety of causes such as infectious, cancers, or inflammatory disease. Intermittent fever is sometimes a diagnostic challenge when fever appears as the first and isolated sign of the disease. Adult onset Still disease and juvenile chronic arthritis are mainly the most common cause of intermittent inflammatory fever. Some frequent diseases gives intermittent fever in few cases like ankylosing spondylitis, pulmonary embolism, sarcoidosis or Crohn's disease. Some rare inflammatory disease gives typical intermittent fever like genetic periodic fever. Other rare diseases give sometimes intermittent fever like vasculitis, polychondritis, Castleman disease, etc. Drug fever and factitious fever are other classical causes of intermittent fever. Diagnosis of inflammatory intermittent fever is frequently based on the clinical course but some biological tests and computerized tomographic scans are worthwhile tools. Follow-up of undiagnosed cases is needed.

Chronic Disease↗

Presence of microchimerism in labial salivary glands in systemic sclerosis but not in Sjögren's syndrome.

OBJECTIVE: To determine whether microchimerism can be implicated in Sjögren's syndrome (SS) by studying minor salivary glands, one of the targets of the disease. METHODS: Labial salivary gland (LSG) biopsy specimens from 16 female patients with primary SS and 11 with systemic sclerosis (SSc) (a disease in which microchimerism is frequently detected) were analyzed. All 27 women had a history of pregnancy with a male baby. Specimens were microdissected, and polymerase chain reaction (PCR) was performed using the unique sex-determining region Y gene probe. RESULTS: The sensitivity of PCR for detecting male cells in LSG was high; the presence of 3 male cells was consistently detected in DNA extracted from a normal female LSG specimen to which male DNA had been added, and 1 male cell was detected in 50% of specimens analyzed. Male DNA was not found in any of the specimens from the 16 SS patients but was detected in 5 (45%) of 11 SSc specimens (P = 0.006). No differences in the rate of detection were found between patients with diffuse and limited SSc (male DNA detected in 2 of 3 and 3 of 8, respectively; P = 0.55) or between patients with and those without secondary SS (1 of 6 and 4 of 5, respectively; P = 0.08). CONCLUSION: The results of our study strengthen the possibility that microchimerism is implicated in SSc. This is the first study to demonstrate the presence of chimeric cells in LSG from 45% of SSc patients, independent of the presence of secondary SS. However, microchimerism was not detected in LSG from patients with primary SS, suggesting that the pathogenesis of the 2 diseases is different.

Adult↗

Antiphospholipid syndrome: clinical and immunologic manifestations and patterns of disease expression in a cohort of 1,000 patients.

OBJECTIVE: To analyze the clinical and immunologic manifestations of antiphospholipid syndrome (APS) in a large cohort of patients and to define patterns of disease expression. METHODS: The clinical and serologic features of APS (Sapporo preliminary criteria) in 1,000 patients from 13 European countries were analyzed using a computerized database. RESULTS: The cohort consisted of 820 female patients (82.0%) and 180 male patients (18.0%) with a mean +/- SD age of 42 +/- 14 years at study entry. "Primary" APS was present in 53.1% of the patients; APS was associated with systemic lupus erythematosus (SLE) in 36.2%, with lupus-like syndrome in 5.0%, and with other diseases in 5.9%. A variety of thrombotic manifestations affecting the majority of organs were recorded. A catastrophic APS occurred in 0.8% of the patients. Patients with APS associated with SLE had more episodes of arthritis and livedo reticularis, and more frequently exhibited thrombocytopenia and leukopenia. Female patients had a higher frequency of arthritis, livedo reticularis, and migraine. Male patients had a higher frequency of myocardial infarction, epilepsy, and arterial thrombosis in the lower legs and feet. In 28 patients (2.8%), disease onset occurred before age 15; these patients had more episodes of chorea and jugular vein thrombosis than the remaining patients. In 127 patients (12.7%), disease onset occurred after age 50; most of these patients were men. These patients had a higher frequency of stroke and angina pectoris, but a lower frequency of livedo reticularis, than the remaining patients. CONCLUSION: APS may affect any organ of the body and display a broad spectrum of manifestations. An association with SLE, the patient's sex, and the patient's age at disease onset can modify the disease expression and define specific subsets of APS.

Adolescent↗

Diagnostic tools for amyloidosis.

Demonstration of amyloid deposits in biopsy specimens is the only means of confirming the diagnosis of amyloidosis. In experienced hands, nonsurgical biopsies of the rectal mucosa or, preferably, of the abdominal fat pad or labial salivary glands provide the diagnosis in 80 to 85% of cases. Immunolabeling studies help to determine the histological type of amyloidosis but are not performed routinely in everyday practice. In patients with a family history of amyloidosis, studies of the genome and amyloid protein can identify the protein variants capable of causing systemic amyloidosis. Once the diagnosis of amyloidosis is established, the extent of systemic involvement with amyloid should be evaluated by performing renal and hepatic function tests, a proteinuria assay, and an echocardiogram. Scintigraphy with radiolabeled serum amyloid P (SAP) component is a rapid and specific investigation that provides a map of the amyloid deposits. Deposits are usually seen in the liver and spleen. SAP component scintigraphy can provide support for the diagnosis of amyloidosis in patients with negative histological studies. Tissue retention of radioactivity predicts survival.

Amyloidosis↗

Autologous bone marrow transplantation in the treatment of refractory systemic sclerosis: early results from a French multicentre phase I-II study.

Haematopoietic stem cell transplantation (HSCT) has been proposed for refractory autoimmune diseases, including systemic sclerosis (SSc). A sequential Bayesian phase I-II clinical trial was conducted in SSc patients to assess the feasibility, the tolerance and the efficacy of autologous HSCT. Peripheral blood stem cells (PBSC) were collected using cyclophosphamide (4 g/m2) and recombinant human granulocyte colony-stimulating factor (5 micro g/kg/d) and reinfused after positive CD34+ selection. Conditioning used cyclophosphamide (200 mg/kg) or melphalan (140 mg/m2) according to cardiac function. The main end-point was the failure of the procedure, defined by failure of either PBSC mobilization, CD34+ selection or intensification procedure, or by procedure-related death. Among the 12 enrolled patients, three failures occurred: one PBSC mobilization, one CD34+ selection and one CD34+ intensification. Probability of graft failure was estimated at 0.286 (95% confidence interval: 0.095-0.54). Autologous PBSC (n = 10) or bone marrow (n = 1) transplantation was actually performed in 11 patients with one procedure-related death. Median time to neutrophil (> 0.5 x 10(9)/l) and platelet (> 25 x 10(9)/l) haematopoietic reconstitution was 12 and 10 d respectively. After 18 months (range 1-26), eight out of 11 patients have shown major or partial response. Non-myeloablative conditioning, followed by a T cell-depleted autologous PBSC or bone marrow transplantation, appears feasible with low toxicity in severe SSc with short-term clinical benefits.

Adolescent↗

Urinary bikunin determination provides insight into proteinase/proteinase inhibitor imbalance in patients with inflammatory diseases.

Bikunin (BK) is a Kunitz-type proteinase inhibitor responsible for most of the antitryptic activity of urine and so is known as the urinary trypsin inhibitor. As its excretion increases in inflammatory conditions, it is often considered to be a positive acute phase protein (APP). However, the gene for BK is downregulated in inflammation. In human plasma the major part of BK is covalently linked through a glycosaminoglycan chain to one or two homologous peptide heavy chains, thus forming high molecular weight proteinase inhibitors called pre-alpha-inhibitor (PalphaI) and inter-alpha-inhibitor (IalphaI), respectively. The C-terminal parts of these heavy chains are very sensitive to proteolysis. Neutrophil proteinases in particular are able to release from IalphaI and PalphaI BK (M, about 25,000) which retains its antitryptic activity and is quickly excreted in urine. It was therefore an early supposition that the higher urinary excretion of BK occurring during inflammatory diseases should be, at least in some respect, related to a partial proteolysis of IalphaI and PalphaI. In this study we observed that BK, determined as antitryptic activity, was clearly increased in urine from 35 patients with inflammatory diseases varying in origin and severity (76.5 +/- 75.5 IU/g vs. reference value <10 IU/g creatinine). This increase seems mainly to be associated with polymorphonuclear leukocyte activation, monitored by human leukocyte elastase (HLE) determination rather than with the acute phase response assessed by C-reactive protein (CRP) measurement. For all the patients we found that the urinary levels of BK and serum concentration of intact IalphaI correlated inversely (r=-0.36; p=0.03), in agreement with the presumed precursor-product relationship linking IalphaI and BK. We also proved that urinary BK was significantly higher, and serum IalphaI was significantly lower, in samples with plasma HLE values above the reference: 90 microg/l. Taken together, our results demonstrate that BK, the urinary excretion of which is increased in inflammatory conditions, originates, at least partly, from IalphaI and PalphaI by proteolytic cleavage. Consequently, urinary BK determination provides information on the severity of systemic proteolysis occurring in inflammation. We also demonstrated that during inflammatory diseases IalphaI and PalphaI concentrations in serum are dependent on their increased utilization as well as on the regulation of their biosynthesis.

Biomarkers↗

Treatment of severe immune thrombocytopenia associated with systemic lupus erythematosus: 59 cases.

OBJECTIVE: To evaluate the response to treatment in a large cohort of patients with systemic lupus erythematosus (SLE) associated with autoimmune thrombocytopenia. METHODS: Response to treatment was assessed retrospectively in 59 patients with SLE, either definite (n = 44) or incomplete (n = 15), associated with frank autoimmune thrombocytopenia (defined as platelet count < 50 x 10(9)/l). Response to treatment was classified as complete (CR: platelet count > 150 x 10(9)/l), partial (PR: platelet count > 50 x 10/l), or failure (FR) in the other cases. RESULTS: Oral prednisone alone was used in 50 of the 59 patients (mean initial dose 1 mg/kg body weight/day). A response was obtained in 80% of cases (CR in 28. PR in 12) but only 11 (22%) had a sustained response (CR, n = 7; PR, n = 4). In contrast, combined treatment with prednisone and either danazol (n = 18) or hydroxychloroquine (n = 11) resulted in 50% (7 CR, 2 PR) and 64% (4 CR, 3 PR) longterm responses, respectively, allowing prednisone to be withdrawn or the dose tapered below 0.2 mg/kg body weight/day. High dose methylprednisolone pulses (n = 10) and intravenous immunoglobulin (IVIG) (n = 31) resulted in positive responses in 60% (4 CR, 2 PR) and 65% (12 CR, 8 PR) of cases, respectively, but the response was transient in each case. Splenectomy (n = 17) resulted in 65% longterm responses (10 CR, 1 PR). Only 2 longterm partial responses were obtained with the 22 immunosuppressant-containing regimens administered to 14 patients. At the end of the study. a response was observed in 52 (88%) patients [CR: 36 (61%), PR: 16 (27%)], mainly as a result of splenectomy or combined treatment with prednisone and either danazol or hydroxychloroquine. CONCLUSION: Longterm remission was obtained in the majority of patients. The major treatments inducing remission were splenectomy and prednisone combined with danazol or hydroxychloroquine.

Adolescent↗