[What can be expected from endoscopy in upper digestive hemorrhage?].
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Biomedical subjects
Publications and source records attributed to J C Trinchet.
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Forty-eight patients with alcoholic cirrhosis and absence of patent infection were assessed for asymptomatic bacteriemia and endotoxemia. 280 blood cultures have been performed and 190 serum samples collected for study by two different methods of the limulus test (LT). Bacteriemia was found in 7 blood cultures from 3 patients. In these patients, occult infection was demonstrated in each case (cholecystitis, ulcerated rectal adenocarcinoma, cutaneous infection). Sixteen LT from 14 patients were positive initially. Only one LT remained positive after control by two different methods. These results suggest that in patients with alcoholic cirrhosis and in the absence of patent infection: 1) bacteriemia is an infrequent feature and, if present, explained by other causes than cirrhosis. 2) LT is negative in systemic blood when rigorous controls are performed, and endotoxemia cannot be substantiated by this test.
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A patient with malignant histiocytosis had an iron plasmatic concentration above 600 gamma/100 ml. An abnormal iron-binding protein incompletely saturated is demonstrated in the plasma. This protein has an electrophoretic migration near the alpha 2 globulins and no immunological reactions with antitransferrin and antiferritin antibodies. Its affinity for iron is less and its molecular weight is greater than the one of transferrin. Such a protein has not already been described in the plasma and its presence should be related to the malignant disease.
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The authors report a case of probably ectopic secretion of calcitonin in a 35 year old woman suffering from a malignant tumour in a double intra- and extra-spinal form. Hormone levels returned to normal after complete excision of the tumour, in which it was impossible to demonstrate the presence of calcitonin despite a very marked secretory appearance by electron microscopy. Study of the literature concerning the secretion of calcitonin by malignant tumours indicates the high degree of contradiction concerning the origin and the significance of increased radio-immunological levels of this hormone, which it is not possible to use without criticism as a "marker" of carcinomas.
HIGH INCIDENCE: Because of the high incidence of hepatocellular carcinoma (HCC) in patients with cirrhosis (3 to 5% per year) and the fact that curative treatment is currently available only for small sized tumors careful screening is warranted in this high risk population. Earlier screening attempts produced disappointing results in terms of cure and survival, particularly in Europe. Progress in ultrasonography, a better understanding of the risk of developing HCC, and most importantly the advent of local percutaneous treatments have greatly affected the data which should be reexamined. SCREENING METHODS: Patients with cirrhosis, particularly alcoholic or viral cirrhosis, should undergo regular ultrasound examinations, every six months for most screening protocols although the best timing remains unknown. Assay of serum alpha-fetoprotein is of limited use due to its low sensitivity and specificity. Diagnosis of HCC is basically based on helicoidal computed tomography and/or magnetic resonance imaging findings, with or without pathological proof (ultrasound-guided biopsy) that may be difficult to obtain. A probabilistic diagnosis is therefore retained if necessary, based on the presence of risk factors and arterial hypervascularization of a liver nodule. EARLY TREATMENT: With ultrasound screening, the diagnosis of HCC can generally be established early, when curative transplantation, resection or local percutaneous destruction are still feasible. The percutaneous methods use chemical or physical agents to destroy the tumor. There are few contraindications so curative treatment can be proposed for large number of patients. Large-scale prospective studies will be completed in the upcoming years and are expected to provide evidence validating the principle of screening and early treatment.
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We report a case of polyarteritis nodosa occurring in a patient with hepatitis C, ten days after the beginning of alpha-IFN therapy. There was no cryoglobulinemia. Serum HCV-RNA was detectable before INF therapy and disappeared during the vasculites. The patient received boli of methylprednisolone and the neurological and skin lesions regressed after 5 months. This observation could suggest a precocious response to alpha-INF and a relationship between INF and the occurrence of vasculites.