Presse Med
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PHYSIOLOGY: Chylothorax corresponds to the intrathoracic presence of chyle. Chyle is a lymph of intestinal origin containing the product of digested fat. This lymph joins the blood circulation through the thoracic duct. The thoracic duct receives a part of the lymphatic drainage from the viscera below the diaphragm, from the diaphragm and from the sterno-costal wall.
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THE INTEREST AND LIMITS OF ERYTHROPOIETIN: Chronic renal failure (CRF) is often associated with anemia, mainly because of insufficient renal synthesis of erythropoietin (EPO). This observation led in the early 1980 to the cloning of the complementary DNA coding for the EPO molecule, the large-scale production of a recombinant human EPO (rHuEPO), and its large utilisation in clinical practice. ⋯ The efficacy of rHuEPO is dose-dependent and corrects the anemia in the majority of the patients. However, its relative short plasma half-live (4-8 hours) requires repeated injections of the drug, usually two to three times a week.
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With regard to the efficacy of mono-chemotherapy and according to the literature, no cytotoxic substance, apart from methrotrexate at high doses, leads to a response rate of more than 20%. With regard to cyrotoxic associations, the published results show slightly betterresponse rates. ⋯ In the treatment of malignant pleural mesothelioma, genetic, anti-proliferative and immune therapy, that attempt to use the immune system of the patient to obtain an anti-tumour cytotoxic reaction, appear promising.
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Report of epidemiological, clinical and virological data collected from the prospective surveillance of febrile episodes observed in aged residents of a long-stay care unit of 33 beds, at the University Hospital of Saint-Etienne, during the 1997-1998 winter season. ⋯ This study underlines the epidemic circulation of multiple respiratory viruses during the same winter season in long-stay care facilities, the occurrence of clinical influenza infections in vaccinated patients exhibiting protective antibody titres and the role of unvaccinated healthcare workers in the propagation of influenza in institutionalised aged.
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Review Comparative Study
[Therapeutic management of primary pulmonary hypertension].
SEVERITY AND TREATMENT: The management of primitive pulmonary hypertension starts by the evaluation of its severity, based on the New York Heart Association's (NYHA) functional classification and right cardiac catheterization data. Hemodynamic criteria of poor prognosis are: an increase in right atrial pressure > 10 mm Hg, a decrease in cardiac output (cardiac index < 2.2 l/min/m2), an increase in pulmonary vascular resistance > to 20 mm Hg/l/min/m2, and saturation of the oxygen content in venous blood < 63%. These prognostic data will condition treatment. ⋯ Continuous intravenous infusion of epoprostenol has considerably improved the prognosis of PPH and related pulmonary hypertension (PH). Despite the constraints, such treatment should be proposed to NYHA functional class III and IV patients not responding to carbon monoxide tests, until new, equally efficient products have been launched on the market. If epoprostenol fails or provokes severe side effects, pulmonary or cardio-pulmonary transplantation should be envisaged.