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J P Eschard

Publications and source records attributed to J P Eschard.

At least 19 recordsLinked to original sources
PubMed2002

Health-care use by rheumatoid arthritis patients compared with non-arthritic subjects.

OBJECTIVE: To compare the use of health-care by rheumatoid arthritis (RA) patients and non-arthritic subjects (NA) and to look for factors determining their patterns of health-care use. METHODS: A multicentre cohort of 223 RA and 446 NA subjects matched for age, gender, period of data collection and residence were questioned about their use of health-care services. Patterns of health-care use were identified by principal components analysis. Factors determining the use of health-care services were assessed by multiple linear and logistic regression analysis. RESULTS: The proportions of RA subjects who declared having had at least one contact with the health-care system in the previous 12 months and in the previous 4 weeks were higher than those for NA subjects for all health and social professionals except dentists and homeopaths. Types of health-care use explored were hospital, prescribed, general ambulatory and specialized ambulatory care. Factors determining health-care use were disease status, administrative area, employment status and age. CONCLUSIONS: RA subjects use health-care services more widely than NA subjects. Variation in recourse behaviour is related to differences within administrative areas.

Ambulatory Care↗
PubMed2001

Fractal dimension of trabecular bone: comparison of three histomorphometric computed techniques for measuring the architectural two-dimensional complexity.

Trabecular bone has been reported as having two-dimensional (2-D) fractal characteristics at the histological level, a finding correlated with biomechanical properties. However, several fractal dimensions (D) are known and computational ways to obtain them vary considerably. This study compared three algorithms on the same series of bone biopsies, to obtain the Kolmogorov, Minkowski-Bouligand, and mass-radius fractal dimensions. The relationships with histomorphometric descriptors of the 2-D trabecular architecture were investigated. Bone biopsies were obtained from 148 osteoporotic male patients. Bone volume (BV/TV), trabecular characteristics (Tb.N, Tb.Sp, Tb.Th), strut analysis, star volumes (marrow spaces and trabeculae), inter-connectivity index, and Euler-Poincaré number were computed. The box-counting method was used to obtain the Kolmogorov dimension (D(k)), the dilatation method for the Minkowski-Bouligand dimension (D(MB)), and the sandbox for the mass-radius dimension (D(MR)) and lacunarity (L). Logarithmic relationships were observed between BV/TV and the fractal dimensions. The best correlation was obtained with D(MR) and the lowest with D(MB). Lacunarity was correlated with descriptors of the marrow cavities (ICI, star volume, Tb.Sp). Linear relationships were observed among the three fractal techniques which appeared highly correlated. A cluster analysis of all histomorphometric parameters provided a tree with three groups of descriptors: for trabeculae (Tb.Th, strut); for marrow cavities (Euler, ICI, Tb.Sp, star volume, L); and for the complexity of the network (Tb.N and the three D's). A sole fractal dimension cannot be used instead of the classic 2-D descriptors of architecture; D rather reflects the complexity of branching trabeculae. Computation time is also an important determinant when choosing one of these methods.

Cluster Analysis↗
PubMed2000

Measurement of visceral adipose tissue by DXA combined with anthropometry in obese humans.

OBJECTIVE: To get accurate measurements of visceral adipose tissue (VAT) using dual energy X-ray absorptiometry (DXA). DESIGN: DXA and anthropometric data and their combinations were compared to the VAT area calculated from a computed tomography (CT) single scan. SUBJECTS: 71 overweight subjects (44 women, 27 men), age: 16-70 y, BMI: 27-52 kg/m2. MEASUREMENTS: Total body and segmental tissue composition, and new parameters obtained from DXA, in addition to waist and hip circumferences and abdominal sagittal diameter measurements. RESULTS: The ratio measured at the umbilical level (sagittal diameter - subcutaneous fat width) x (transverse internal diameter)/(height) was closely related to VAT (r=0.94 for women and 0.88 for men). It gave the most predictive equation for VAT: y = 79.6x (s.e. 3.9) - 149 cm2 for the whole population (r2=0.86, P<0.0001, root mean square error=38.2 cm2. An independent relationship between lean mass or its index (r=0.52 and 0.72, P<0.001) and VAT was also found in women. CONCLUSION: This study demonstrates the potential usefulness of DXA to supply accurate measurements of VAT in addition to total body composition determination in obese subjects.

Absorptiometry, Photon↗
PubMed1999

Rheumatic disorders developed after hepatitis B vaccination.

OBJECTIVE: To obtain an overview of rheumatic disorders occurring after hepatitis B vaccination. METHODS: A questionnaire was sent to rheumatology departments in nine French hospitals. Criteria for entry were rheumatic complaints of 1 week's duration or more, occurrence during the 2 months following hepatitis B vaccination, no previously diagnosed rheumatic disease and no other explanation for the complaints. RESULTS: Twenty-two patients were included. The observed disorders were as follows: rheumatoid arthritis for six patients; exacerbation of a previously non-diagnosed systemic lupus erythematosus for two; post-vaccinal arthritis for five; polyarthralgia-myalgia for four; suspected or biopsy-proved vasculitis for three; miscellaneous for two. CONCLUSIONS: Hepatitis B vaccine might be followed by various rheumatic conditions and might trigger the onset of underlying inflammatory or autoimmune rheumatic diseases. However, a causal relationship between hepatitis B vaccination and the observed rheumatic manifestations cannot be easily established. Further epidemiological studies are needed to establish whether hepatitis B vaccination is associated or not with an incidence of rheumatic disorders higher than normal.

Adolescent↗
PubMed1998

Effect of chlorambucil on bone mineral density in the course of chronic lymphoid leukemia.

The purpose of this work was to study the effects of chronic lymphoid leukemia (CLL) and its treatments on bone mineral density (BMD). Lumbar and femoral BMD was measured by X-ray absorptiometry in 50 (32 M, 18 F, median age 65, range age: 47-87 yr) CLL patients. In order to gauge the respective effects of CLL and corticoids on bone mass, 31 CLL patients under treatment were compared with 31 controls on cortisone. Nineteen untreated patients with CLL were compared with controls devoid of osteopenia risk factor. There was no significant difference regarding lumbar and femoral BMD between the untreated patients with CLL and the healthy controls. An increase in lumbar and femoral BMD was noted in the treated CLL group compared with the controls on cortisone (lum BMD: 1.018 vs. 0.861 g/cm2, p=6.10(-4); fem BMD: 0.773 vs. 0.699 g/cm2, p=0.037). This increase was observed only in patients who had received chlorambucil (lum BMD: 1.066 vs. 0.861 g/cm2, p=0.10(-4); fem BMD: 0.806 vs. 0.699 g/cm2, p=4.10(-3)), whereas there was no difference between the CLL patients treated without chlorambucil and the controls on cortisone. Multiple linear regression analysis confirmed the marked effect of chlorambucil (r=0.3715, p<10(-3)) on BMD increase in the course of CLL.

Absorptiometry, Photon↗
PubMed1998

A randomized, double blind, placebo controlled multicenter trial of murine anti-CD4 monoclonal antibody therapy in rheumatoid arthritis.

OBJECTIVE: To assess safety and efficacy of a murine anti-CD4 monoclonal antibody (Mab) in a population of patients with rheumatoid arthritis (RA) compared to treatment with placebo. METHODS: Fifty-eight patients with defined RA were included in this placebo controlled, randomized, double blind, multicenter study. Of the 48 women and 10 men (mean age 54.5 years), 25 were functional class II and 31 were class III, with 9 years' disease duration; the mean of previous disease modifying antirheumatic drugs was 4; 49 were taking steroids (mean dosage 11 mg/day of prednisone). Eighty percent were rheumatoid factor positive. All were in an active state of the disease with: pain > 4 (mean at inclusion 6.6), tender joints > 4 (mean 12), swollen joint count > 3 (mean 9), morning stiffness > 45 min (mean 185), erythrocyte sedimentation rate > 30 mm (mean 59) or C-reactive protein (CRP) > 30 mg/l (mean 63). Treatment was randomized between murine anti-CD4 Mab (B-F5, Diaclone, 20 mg/day) or placebo intravenously for 10 consecutive days. Efficacy was assessed with a composite index (Paulus), with evaluation of number of patients with 20 or 50% improvement in each group. Changes in measures of single clinical or biological variables were also evaluated. RESULTS: The 2 groups were comparable at inclusion. Treatment was well tolerated. Mild side effects (chills, fever, rash) were seen in both groups. Percentage of patients with global 20 or 50% response did not differ between placebo and Mab groups at Day 10 or at Day 30. Evaluation of single variables showed reduced CRP, swollen joint count, and Ritchie index in some B-F5 patients at Day 10, although in the B-F5 group as a whole only CRP was significant. CONCLUSION: No significant improvement in RA after murine anti-CD4 Mab was observed.

Adult↗
PubMed1997

[Influence of seasons on risk of flare-up of systemic lupus: retrospective study of 66 patients].

PURPOSE: To establish the possible connection between visceral, arthro-cutaneous and biological spreading of systemic lupus (SL) and hours of sunlight. MATERIAL AND METHODS: Retrospective study of 66 SL patients, consisting of 52 visceral and 14 arthro-cutaneous cases taking into account the chronological pattern of each new aggravation, based on 480 clinical records. RESULTS: Increased frequency in visceral aggravation was observed in the post-summer period (August-January) (n = 57), as compared with the pre-summer period (February-July) (n = 25) (RR = 1.75, P = 0.006). This post-summer visceral aggravation was correlated with cutaneous affection (RR = 4.18) and absence of previous corticotherapy (RR = 3.97). Visceral and arthro-cutaneous aggravations taken together revealed a more disturbed immune balance pattern in the post-summer period (anti-dsDNA: 30 versus 25.1 IU/L [P = 0.07]; C3: 0.83 vs 0.921 IU/L [P = 0.05]; C4: 0.146 vs 0.183 [P = 0.05]), providing evidence of greater severity. Moderate thrombopenia (50-120 10(9)/L) accompanying visceral SL with antiphospholipids (n = 33) was more frequent during the post-summer period, even in the absence of aggravation (P = 0.03). The quarterly distribution of visceral aggravations was correlated with average hours of sunlight in the preceding quarter (P = 0.01). CONCLUSION: There is a post-summer increase in the frequency and severity of visceral SL spreading correlated to cutaneous exacerbation and sunlight.

Adult↗
PubMed1997

Life events and disability in rheumatoid arthritis: a European cohort.

The objective was to study the relationship between life events (LE) and the clinical status of patients suffering from recently diagnosed rheumatoid arthritis (RA) in a 2 yr follow-up. As part of a multicentre European cohort study, 370 French and Dutch patients were questioned three times at 1 yr intervals about LE which had occurred in the previous year. Three criteria were used to quantify the degree of disease activity (Ritchie's index), the level of functional disability [Health Assessment Questionnaire (HAQ)] and perceived health [Overall Evaluation of Health (OEH)]. Total LE and desirable LE showed a weak negative correlation with the HAQ scores. On the other hand, death-related LE did not seem to modify patient status. The higher the number of health-associated LE, the greater the deterioration in HAQ and OEH scores. The results indicate that LE do not affect the course of early RA in a spectacular manner.

Adult↗
PubMed1997

Rheumatic manifestations of scurvy. A report of two cases.

Bleeding into the muscles and joints can be the presenting manifestation of scurvy, as illustrated by two case-reports. One patient presented with hemarthrosis of the tibiotalar joint due to an insufficiency fracture and was suspected to have scurvy based on the presence of purpura and hypertrophy of the gums with loss of teeth. In the other patient, multiple hematomas in the lower limbs were found at presentation and the presence of coiled hairs suggested the diagnosis. Both patients had completely eliminated fruit and vegetables from their diet. Low levels of ascorbic acid were found in serum and urine. A full recovery was achieved in both cases under ascorbic acid supplementation.

Adult↗
PubMed1996

Avascular necrosis of the femoral head as a complication of chronic myelogenous leukaemia.

A 17-year-old male patient complaining of intense pain in his right hip was found to be suffering from chronic myelogenous leukaemia. Preliminary X-rays and bone scintigraphy did not suggest avascular necrosis of the femoral head. Magnetic resonance imaging (MRI) did, however, reveal leukaemic infiltration of the femoral neck and generalised ischeamia in the femoral head. Further, MRI carried out 4 months later disclosed typical signs of osteonecrosis, despite previous indications of an improvement under chemotherapy. Flattening of the head of the femur appeared in radiographs taken in the 9th month. In the 12th month, recurrence of pain made it necessary to perform a total hip arthroplasty. Anatomo-pathological investigation confirmed both the necrosis and the leukaemic invasion.

Adolescent↗
PubMed1996

[Pulmonary manifestations of primary Gougerot-Sjögren syndrome. Apropos of 8 cases in a series of 35 patients].

Clinical, roentgenologic, functional and broncho-alveolar lavage features of lung involvement in primary Sjögren's syndrome were assessed in a retrospective study of 35 cases. Diffuse interstitial patterns on chest radiography were present in six patients and alveolar patterns were suggestive of lymphoid interstitial pneumonitis or pseudolymphoma in two. Acute and febrile onset mimicked infectious pneumonitis in three patients when dyspnea was the most common clinical feature in others. Patients with primary Sjögren's syndrome and pulmonary disease were older (65 vs 56 years) (P = 0.025), have more frequently extra-glandular manifestations (P = 0.03), keratoconjunctivis sicca (P = 0.018) and biological perturbations (hypergammaglobulinemia (P = 0.03), antinuclear antibodies (P = 0.01) than those without lung involvement. Low diffusion capacity was present in seven patients associated twice to small airways obstruction. Bronchoalveolar lavage revealed in all cases an increased total cells count (mean: 6.96 10(5)/mm3) and a lymphocytic alveolitis (range: 11 to 66%; mean: 38%) associated with an elevated percentage of alveolar neutrophils in four patients. A low CD4/CD8 ratio was related to a pejorative issue. Treatment consisted in corticotherapy combined with oral cyclophosphamide in case of pseudolymphoma.

Aged↗
PubMed1994

Expression of stromelysin 3 and tissue inhibitors of matrix metallo-proteinases, TIMP-1 and TIMP-2, in rheumatoid arthritis.

Rheumatoid hyperplastic synovial lining cells and sublining fibroblasts are known to produce, in vivo and in vitro, matrix metallo-proteinases which degrade extracellular matrix components of joints. We have studied by immunohistochemistry and in situ hybridization the presence of matrix metallo-proteinase stromelysin 3 and its potential inhibitors TIMP-1 and TIMP-2 in 5 cases of normal synovia, 5 cases of chronic synovitis and 12 cases of rheumatoid arthritis. Few hyperplastic synoviocytes and some sparse fibroblasts have been found to produce stromelysin 3 in all rheumatoid arthritis and 2 chronic synovitis. Stromelysin 3 seems to have a limited role in the destructive process of extracellular matrix. TIMP-1 and TIMP-2 were largely expressed principally in hyperplastic synoviocytes and in endothelial cells of all rheumatoid synovitis and 2 chronic synovitis. These findings plead for a balance between matrix metallo-proteinases and their inhibitors in these inflammatory lesions.

Arthritis, Rheumatoid↗
PubMed1993

[Chronic urticaria-macroglobulinemia (Schnitzler syndrome): developing to IgM myeloma. Apropos of a case].

Schnitzler's syndrome has been described in 1972. It associates a chronic urticaria with leukocytoclastic vasculitis, a macroglobulinemia, bone pains, hyperostosis. In the twenty three cases reported, the evolution is benign but three patients including the princeps case developed a Waldenström's disease or a lymphoplasmocytic lymphoma. We present the case of one patient, aged 65, with Schnitzler's syndrome, who, after 6 years evolution, presents a IgM myeloma. Schnitzler's syndrome appeared as a pre-hemopathic state which has to be taken care of regularly and for a long time.

Adrenal Cortex Hormones↗