[Healing of severe hypoglycemia by removal of a pancreatic adenoma from islets of Langerhans].
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Biomedical subjects
Publications and source records attributed to C Dubost.
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The difficult and disappointing cases encountered in patients who were operated upon for hyperparathyroidism between 1960 and 1987 have been studied. Ninety two patients underwent negative cervicotomy. Among the 12 patients who underwent a second operation, 4 were found to have cervical adenomas and in 6 others mediastinal adenomas were discovered by sternotomy. Most of the other cases were diagnostic errors. The present frequency of negative surgical operations is very low: 2 to 3 per cent of the cases; errors of diagnosis are exceptional, and the unusual sites of adenomas are better known. Seventeen patients were reoperated upon for persistent or recurrent hypercalcaemia despite excision of a 1st parathyroid lesion; 3 cancers which had been mistaken for adenomas at the 1st operation; 6 had a 2nd adenoma which had passed unnoticed during an exploration that was probably too limited and as hypercalcaemia persisted all 6 were reoperated upon with success at different intervals; finally, 8 patients had undiagnosed primary hyperplasia (as part of polyadenomatosis in 5 cases). Recurrences were observed, often after a long period, up to 3 to 5 years. Hypercalcaemia was corrected by the 2nd operation in only 5 out of 8 cases. In retrospect, it was found that the pathological examination could not always determine if the lesion was malignant or distinguish between adenoma and glandular hyperplasia.
The authors report 10 observations of acute hyperparathyroïdism crisis cases operated without death. They draw their conclusions from their own experience and from published cases. The evolution on the medical treatment is invariably mortal. The logical treatment is surgery. The operation is a true emergency, preceded by a brief but intensive medical treatment which checks dehydratation up and bring the blood calcium level down.
The results of the surgical treatment of Prinzmetal's angina are reported in this study of 60 patients. The operative mortality is 3,3 percent and the incidence of post-operative infarction is 20 percent. 53 patients were followed over an average period of 2,7 years. The global survival rate is 91 percent at 5 years, the infarction rate is 24 percent. 76 percent of the sublims are asymptomac. The patients can be classified in three group : isolated lesions, multiple lesions and spasms.
A case of multiple endocrine neoplasia (MEN) II b syndrome was studied in a 28-year-old Colombian woman. The patient presented initially with medullary carcinoma of the thyroid (MTC), an unusual habitus, numerous mucosal neuromas, and intestinal ganglioneuromatosis. Recurrent medullary carcinoma in the mediastinum produced compression. The tumor mass could not be removed surgically, and the patient died of post-operative complications. At autopsy metastatic MTC was present in the liver, lymph nodes, and lungs. In addition, multiple mucosal neuromas were present in the mouth, nasopharynx, larynx, digestive tract, peri-adrenal fat, and hepatic portal spaces. There was no evidence of pheochromocytoma. Immunofluorescence study of mucosal neuromas showed hyperplasia and hypertrophy of nerves, without evidence of tumor. Kindred screening was negative.
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