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R Dhôte

Publications and source records attributed to R Dhôte.

At least 19 recordsLinked to original sources
PubMed2005

[Strokes associated with cervical artery dissection, and systemic mastocytosis: an unfortuitous association? A report of two cases].

INTRODUCTION: Neuropsychiatric symptoms in systemic mastocytosis are usually cognitive and affective changes. EXEGESIS: We describe here two systemic mastocytosis patients without eosinophilia presenting strokes associated with cervical artery dissection. CONCLUSION: These observations are the first reported and they suggest that systemic mastocytosis could be add to the predisposing factors of spontaneous cervical artery dissections.

Aspirin↗
PubMed2003

[Value of MRI for the diagnosis of cardiac involvement in sarcoidosis].

PURPOSE: The aim of the study was to assess the place of cardiac Magnetic Resonance Imaging (MRI) in patients with sarcoidosis with or without cardiac involvement. MATERIALS AND METHODS: Fifty patients with histologically-proven sarcoidosis underwent initial cardiac evaluation including MRI, ECG, holter ECG, echocardiography. Seven of them had cardiac involvement (cardiac insufficiency, auriculo-ventricular block, bundle-branch block). Fiveteen patients had a second evaluation at 10-month follow-up. MRI was classified in three stages, on the base of literature data (stage 1 "granulomatous", stage 2 "exsudative", stage 3 "fibrotic"). RESULTS: A good correlation between the type of the sarcoidosis and MRI was observed: patients with cardiac involvement had all stage 2 MRI; patients with quiescent sarcoidosis had normal or stage 3 MRI; patients without cardiac involvement had all stages on MRI. A good correlation was observed between cardiac MRI abnormalities and evolution of sarcoidosis. Patients under corticoid, with or without cardiac involvement all had regression of MRI lesions and sarcoidosis. In 2 cases, MRI was predictive of clinical cardiac involvement. CONCLUSION: Cardiac MRI is a useful non-invasive method for the early diagnosis and follow-up of cardiac sarcoidosis.

Adrenal Cortex Hormones↗
PubMed2001

D-dimer testing as the initial test for suspected pulmonary embolism. Appropriateness of prescription and physician compliance to guidelines.

OBJECTIVES: Recent studies have shown that strategies for pulmonary embolism diagnosis which have included D-dimer testing have been most cost effective. The objective of this study is to evaluate the impact of a new strategy for pulmonary embolism diagnosis based on D-dimer results. METHODS: A prospective survey was conducted in the emergency ward and three medical departments of a university teaching hospital. Guidelines for diagnosis of PE were established and implemented through an educational intervention and a specific order form. D-dimer (ELISA) was required for all patients suspected of having PE. A result above 500 ng/ml was to be followed by an a pulmonary imaging procedure. Appropriateness of prescription of D-dimer and non-compliance with guidelines (absence of diagnostic imaging procedure following D-dimer results above 500 ng/ml) were evaluated. RESULTS: One-hundred sixty patients were studied. D-dimer test was performed in 154 patients (96.3%) suspected of PE during a two-month period. Test results were above 500 ng/ml in 111 cases. PE was confirmed in 20 cases. Twenty percent (31/154) of the D-dimer prescriptions were inappropriate. Among those with D-dimer results above 500 ng/ml, 45% (50/111) of the patients experienced no imaging procedure. CONCLUSIONS: Despite implementation of clinical guidelines for its use, D-dimer was excessively prescribed. A large proportion of results was not taken in consideration by prescribers. Often new technologies have good experimental results, but behave differently when used routinely in ordinary care settings. It is important that field studies be developed to evaluate the effectiveness of new technologies.

Enzyme-Linked Immunosorbent Assay↗
PubMed2001

Cutaneous and mediastinal lymphadenitis due to Mycobacterium kansasii.

Mycobacterium kansasii most commonly causes a slowly progressive pulmonary disease. Skin and disseminated infections are seen less frequently and only in immunocompromised hosts. To our knowledge, no case of Mycobacterium kansasii infection or skin infection associated with additional organ involvement in an immunocompetent patient has been reported.

Aged↗
PubMed2000

Telangiectasia macularis eruptiva perstans and multiple myeloma.

The association of mast cell diseases and some hematologic malignancies, usually myeloproliferative disorders, myelodysplastic syndromes, and acute leukemia is well recognized. We report the case of a patient with telangiectasia macularis eruptiva perstans, a rare form of cutaneous mastocytosis, and multiple myeloma, an association that has been described only twice in the literature. Parallel improvement of both conditions was observed under chemotherapy regimens for multiple myeloma. Pathogenesis remains unclear, although the abnormalities in the c-kit pathway may play a role in the proliferation of cells from both lineages.

Aged↗
PubMed2000

Polymorphonuclear leukocyte-elastase in Crohn's disease: correlation with 99mtechnetium hexamethyl propylene amine oxime leukocyte scintigraphy.

In Crohn's disease (CD), labeled leukocyte scintigraphy results are highly correlated with radioendoscopic findings and the degree of histologic inflammation. We evaluated the correlation between leukocyte activity measured by two complementary methods. polymorphonuclear leukocyte (PMN)-elastase concentration and leukocyte scintigraphy. In 20 patients with CD, labeled leukocytes, 99m technetium hexamethyl propylene amine oxime (99mTc-HMPAO) scintigraphy, and PMN-elastase concentration were evaluated on the same day. A good correlation was found between PMN-elastase concentrations and the scintigraphic scores (p = 0.005; rs = 0.60; 95% CI, 0.20-0.83). Scintigraphy results were significantly correlated with CD activity index (p = 0.023, rs = 0.50). In four patients, scintigraphic scores and clinical disease activity were not consistent due to the state of PMN leukocyte activation, measured by elastase concentration. In CD, PMN-elastase can provide information about the degree of activation of PMN leukocytes and may explain discrepancy between clinical and scintigraphic indexes.

Adult↗
PubMed1998

[Lyme borreliosis: therapeutic aspects].

CAUSAL AGENTS: Several Borrelia burgdorferi sensu lato species have been recently described which cause different clinical forms of Lyme disease. B. garinii is implicated in neurological forms, B. burgdorferi sensu stricto in articular forms and B. afzelii in late cutaneous forms. As such disease diversity is seen only in Europe and Asia, clinical management in Europe is somewhat different than in North America. NUMEROUS CLINICAL TRIALS: A recently proposed classification of the European forms of Lyme disease is based on clinical presentation: contagious conditions or erythema migrans, early neurologic or cardiologic complications, late articular, neurologic or cutaneous complications. Therapeutic proposals should be guided by the results of European trials, taking into account this classification. ADAPTED MANAGEMENT: For contagious conditions or erythema migrans, amoxicillin and doxycycline are the first intention antibiotics and should be given for 14 to 21 days. Other antibiotic classes (macrolides, oral cephalosporins) have not been found be more effective and should be reserved for second line treatment. Early neurological involvement requires penicillin, a third generation cephalosporin or doxycycline for one month. Oral antibiotics are preferred in case of joint involvement using amoxicillin or doxycycline as first line therapy. A second regimen could be proposed in case of failure. Parenteral administration should be reserved for second line treatment. There is little data available on chronic atrophic acrodermatitis and protocols are based on ceftriaxone, doxycycline or penicillin.

Amoxicillin↗
PubMed1998

Acute autoimmune sensorineural hearing loss associated with Crohn's disease.

We report the sudden onset of bilateral hearing loss in a patient with Crohn's disease while the intestinal disease was quiescent. Antibodies directed against collagen type II were detected in the serum. Dramatic improvement of his hearing was observed under corticosteroid therapy. Diagnosis of autoimmune sensorineural hearing loss was established. This condition could be considered as an extraintestinal manifestation of Crohn's disease. Early diagnosis is mandated, as prompt and intensive treatment with corticosteroids and/or immunosuppressive drugs is effective and could prevent irreversible hearing loss.

Acute Disease↗
PubMed1998

Acquired hemophilia secondary to factor VIII inhibitors after pregnancy.

We report the case of a 26 year-old woman who developed acquired hemophilia secondary to factor VIII inhibitors, two months after a normal pregnancy. The initial hemorrhagic event was a spontaneous deep muscular hematoma mimicking a deep venous thrombosis. This observation was marqued by the apparition of antibodies against porcin factor VIII under treatment by porcin factor VIII. Intravenous immunoglobulin was ineffective, then cyclophosphamide was necessary to control the disease.

Acenocoumarol↗