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S Molinier

Publications and source records attributed to S Molinier.

At least 19 recordsLinked to original sources
PubMed2006

[Impact and forecasting of hepatitis A immunization in French armed forces, 1990-2004].

BACKGROUND: Hepatitis A is a public health problem specially for migrants or travellers from industrialized countries with a low hepatitis A endemic level. French armed forces adopted an immunization strategy which first targeted overseas forces and subsequently was extended to all armed forces. In this work we studied the impact of this policy. METHODS: Epidemiological surveillance data from 1990 to 2004 was analyzed by Poisson regression and exponential models of decrease used to forecast future rates. RESULTS: From the 826 cases of hepatitis A reported during the study period, 266 (32.2%) occurred in overseas forces and 560 (67.8%) in forces stationed in France. Three periods could be identified in the decline of annual incidence: before 1994, with an average rate of 23.2 per 100,000; from 1994 to 1998: 10.2; and after 1998: 1.2 for all French armed forces. For overseas armed forces, the average rate was 117 per 100,000 before 1994 and 17.1 from 1994 to 1998 (p<0.001). For armed forces stationed in France, the average rate was 12.2 per 100,000 before 1998 and 0.9 after (p<0.001). For overseas armed forces, models clearly described the declining incidence subsequent to targeted immunization in 1995 and for armed forces stationed in France, the decline with generalized immunization starting in 1998. DISCUSSION: The impact of immunization against hepatitis A virus was significant both in an overseas population and in a population staying in France where the risk level can be considered low due to the low endemic rate in France. These results suggest that immunization should be proposed not only for travellers but also for the general population based on real knowledge of the situation and cost-effectiveness analyses.

Forecasting↗
PubMed2005

[Imaging of cerebral ischemia within first hours: computed tomography (CT)].

Imaging of stroke has evolved with the development of stroke units and the CE approval of intravenous thrombolysis in the first three hours after stroke onset. The goal of imaging in the acute phase of stroke is: to make the diagnosis of stroke; to rule out other diagnosis (above all hemorrhagic strokes); to precise the location of the arterial occlusion; to assess the level of hypoperfusion; to evaluate the viability and reversibility of brain lesions; to understand the origin of the stroke by evaluating cervical arteries. Constraints of imaging in the acute phase of stroke are: the need to be performed as fast as possible to not delay IV thrombolysis (time is brain); machines must be available 24 hours a day, 7 days a week as close as possible to the stroke unit. The aim of imaging are: in routine practice to evaluate the likely benefits (provided by penumbra imaging) and risks of IV thrombolysis; in term of "evidence based medicine" to better evaluate new specific stroke therapies in randomized studies (IV thrombolysis between 3 to 4 hours, use of anti GpIIbIIIa, intra-arterial mechanical or chemical thrombolysis...). Magnetic resonance imaging is considered the goal standard of stroke imaging allowing to evaluate in a "one stop shopping" the level of arterial occlusion, hypoperfusion and brain viability. However, stroke management is a regional issue and performing MR in extreme emergency is almost impossible in all stroke units outside or even within university hospitals 24 hours a day. CT-perfusion and CT angiography are therefore an accurate alternative tool for acute stroke imaging. Multislice CT is indeed available in almost all stroke units. The examination is very time-saving and clinically relevant to make the decision for IV thrombolysis.

Adult↗
PubMed2001

[Pemphigoid and acquired hemophilia].

INTRODUCTION: The association of bullous pemphigoid and acquired haemophilia is reported. CASE-REPORT: A 74 year-old man developed a bullous pemphigoid after decreasing corticotherapy, ecchymosis and haematomas revealing a high level of acquired anti-VIII antibodies (110 Bethesda UB units; TCA 98 s). Immunosuppressive treatment (cyclosporine, prednisone, azathioprine and bolus of cyclophosphamide) did not stop the disease. Perfusion of recombinant factor VIIa, human immunoglobulins and prednisone-azathioprine association permitted clinical and biological remission. DISCUSSION: Acquired haemophilia is idiopathic half the time. It can appear in autoimmmune diseases. Mortality is high. Only 4 cases of association with bullous pemphigoid have been reported in the literature. At the haemorrhagic phase, porcine factor VIII or more recombinant activated factor VII with human immunoglobulins are necessary. Immunosuppressive treatment is used to decrease production of anti-factor VIII antibodies.

Aged↗
PubMed1999

Evidence for differences in MT2 cell tropism according to genetic subtypes of HIV-1: syncytium-inducing variants seem rare among subtype C HIV-1 viruses.

Non-syncytium-inducing (NSI) variants seem to be more readily transmitted than syncytium-inducing (SI) variants, and the switch from NSI to SI during HIV-1 infection seems to be a key determinant to the evolution of AIDS. We investigated eventual differences in the SI capacity on MT-2 cells according to genetic subtypes of HIV-1 and correlated this observations with CD4 counts and duration of HIV infection. In total, 86 patients, most with known date of HIV contamination and infected with different genetic subtypes, have been studied: 11 subtype A, 46 subtype B, 22 subtype C, and 7 subtype E. Multivariate analysis used a Cox's proportional hazards regression. The number and percentage of patients infected with an SI strain were as follows: 3 of 11 (27%) for subtype A, 15 of 46 (33%) for subtype B, 0 of 22 (0%) for subtype C, and 5 of 7 (71%) for subtype E. After adjustment for time after seroconversion and CD4 counts, significantly fewer SI variants were observed in patients infected with subtype C (p < .002) and it was found that subjects infected with subtype E had a higher risk of being infected with an SI strain (rate ratio [RR] = 12.39%; 95% confidence interval [CI] 1.55-98.67; p < .001). Most of the subtype E-infected patients from our study switched from an NSI to SI phenotype early after seroconversion (<4 years). To predict the in vitro presence of SI variants, we scanned V3-loop sequences for mutations at positions 11 and/or 25. Overall, 54 of 55 (98.2%) NSI strains in vitro were predicted NSI, and only 4 of 12 (33.3%) of SI viruses were predicted SI. For patients in whom a switch from an NSI to an SI virus was observed, the SI phenotype could be detected earlier in vitro than by the corresponding V3-loop sequence. No SI strains were observed among patients infected with subtype C; however, longer follow-up is needed to see whether the appearance of SI variants in subtype E or the absence of SI variants in subtype C-infected patients is also associated respectively with a faster or slower progression to AIDS as described for subtype B.

Amino Acid Sequence↗
PubMed1998

[Polyarthralgia disclosing hyperthyroidism. Two case reports].

BACKGROUND: We report two cases of rheumatism associated with hyperthyroidism. In both cases, arthralgia totally regressed after thyroid treatment. CASE REPORTS: Two 79-year-old and 59-year-old women developed manifestations of polymyalgia rheumatica and psoriasis arthritis respectively. Corticosteroid therapy was ineffective and followed by manifestations of hyperthyroidism. The first patient was treated with carbimazole and the second with thyroidectomy. Once the hyperthyroidism was controlled, both patients experienced a dramatically rapid cure of their arthralgias. DISCUSSION: Scalpulo-humeral periarthritis is the main articular complication of hyperthyroidism. True manifestations of "thyrotoxicosis rheumatism" are unusual and may be linked with a direct toxicity of the thyroid hormones on joint cartilage or with an autoimmune manifestation of hyperthyroidism.

Adrenal Cortex Hormones↗
PubMed1998

[2 cases of iatrogenic oral streptococcal infection: meningitis and spondylodiscitis].

INTRODUCTION: The multiplication of invasive spine investigations for either diagnostic or therapeutical purposes increases the risk for iatrogenic infections. We report two cases of iatrogenic infections, one case of meningitidis and one case of spondylodiscitis due to Streptococcus viridans. EXEGESIS: The two cases included a 42-year-old male patient presenting with spondylodiscitis due to Streptococcus oralis following nucleolysis for discal node and a 51-year-old female patient with purulent meningitidis due to Streptococcus salivarius following hysteroscopy with spinal anesthesia. According to the disease chronology and bacterial results, iatrogenesis was evidenced. The streptococci originate from the patient's skin or from the operators' endobuccal flora. CONCLUSION: Simple aseptic rules, including wearing a surgical mask during any spinal tap, would definitely avoid iatrogenic infections.

Adult↗
PubMed1998

[Soft tissue eosinophilic granuloma or Kimura's disease: a case report].

Soft tissue eosinophilic granuloma or Kimura's disease is a chronic inflammatory disorder of unknown etiology. It is endemic in the Far East but can occur sporadically in other populations especially Middle Eastern peoples as illustrated by the present case involving a 55-year-old man. Examination 8 years after an initial episode revealed masses in the cheek and submaxillary regions with hypereosinophilia and characteristic histological findings. The usual clinical presentation of Kimura's disease includes subcutaneous nodules with lymph node involvement or presence of tumor in the salivary glands. These clinicopathological findings require differential diagnosis with Hodgkin's lymphoma, dermopathic lymphoma, or Castelman's disease. However, the most difficult distinction involves angiolymphoid hyperplasia with eosinophilia. Final diagnosis requires anatomopathological study. The most frequently encountered histological criteria are preservation of node structure, highly developed germinal centers, eosinophilic infiltration, and presence of numerous postcapillary veinlets. Prognosis is favorable but multiple relapses are possible. Corticosteroid therapy is usually effective but radiation treatment may be necessary in patients with recurrent disease.

Algeria↗
PubMed1998

[Diagnostic and treatment of hypereosinophilia upon return from the tropics: 102 patients].

Management of blood eosinophilia in travelers returning from the tropics is controversial. In this prospective study, 102 asymptomatic tropical travelers underwent investigation and treatment for hypereosinophilia. In contrast with direct tests for parasitic infection which were positive in only 15% of cases, immunological tests were suggestive of helminthic infection is 77%. The most common diagnoses were toxocarosis (49%), strongyloidiasis (30%), and filariasis (19%). Anti-parasite treatment was undertaken based on laboratory findings (12 cases) or on presumptive diagnosis using two-agent therapy (ivermectin and praziquantel) in 13 cases or three-agent therapy (ivermectin, praziquantel, flubendazole) in 77 cases. As a result of treatment, eosinophil count returned to normal in 61% of cases and decreased in 30%. These findings suggest that presumptive treatment of blood eosinophilia can be undertaken in tropical travelers using three anti-parasitic drugs: ivermectin (1 x 0.4 mg/kg), flubendazole (2 x 100 mg per day for 3 days), and praziquantel (1 x 40 mg). As a precaution before using ivermectin, tests should be performed to detect loiasis which can lead to adverse reactions.

Adult↗
PubMed1997

Presence of multiple non-B subtypes and divergent subtype B strains of HIV-1 in individuals infected after overseas deployment.

OBJECTIVE: To identify the genetic subtypes and characteristics of HIV-1 strains from individuals infected after overseas deployment. PATIENTS AND METHODS: Sixty-one HIV-1-positive individuals detected between 1986 and 1995 in the French army were included in the study. For each patient, the year and country of HIV infection are known. Genetic subtypes of HIV-1 were determined using the heteroduplex mobility assay (HMA) using ED5/ED12 as outer and ES7/ES8 as inner primers. Strains were further characterized by sequencing and phylogenetic analysis of the C2-V3 region. The amino-acid sequences corresponding to the V3 region were aligned on the basis of the subtyping results and were then compared to the consensus V3 sequences of the corresponding subtypes. RESULTS: Among the 61 patients studied, nine became infected in France, and 52 were HIV-negative before overseas deployment but HIV-positive at their return. The majority (n = 43) deployed in Africa and a limited number of patients deployed in Asia (Cambodia, n = 5) or South America (guyana, n = 4). The nine individuals who were not deployed overseas were all infected with subtype B strains. The majority of the other patients were infected with non-B strains; eight subtype A, 20 subtype B, 16 subtype C, one subtype D, six subtype E and one subtype F. Five of the six subtype E strains were contracted in Cambodia and one in Djibouti, and all subtype C strains were from Djibouti. Phylogenetic analysis revealed a large diversity among the different strains introduced into France. Analysis of the amino-acid sequences of the V3 loop revealed the introduction of uncommon V3-loop patterns. CONCLUSION: In the group of HIV-1-infected individuals that we studied and who were deployed overseas, 63.4% were infected with non-B strains. In addition, the subtype A, B and C viruses in this population were very heterogeneous. Due to the routine occurrence of international travel and deployment, the predominance of subtype B HIV-1 viruses may change in European countries. However, the possible implications on the dynamics of the HIV-1 epidemic needs further follow-up.

Adult↗
PubMed1995

[Goodpasture syndrome: role of an epidemiological factor? Apropos of two cases].

Goodpasture's syndrome is a rare pneumorenal syndrome. Although the antigenic target of this auto-immune disorder is now known, its etiology remains debated. We report two cases of Goodpasture's syndrome occurring in similar epidemiologic conditions concerning the moment the disease began, the age and sex of the patients, their place of residence and work and manipulation of chemicals. Thus, a common environmental factor could have been the trigger event of the Goodpasture's syndrome. The epidemiologic features of this disease are reviewed.

Adult↗