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J P Chigot

Publications and source records attributed to J P Chigot.

At least 19 recordsLinked to original sources
PubMed1995

Should primary hyperparathyroidism be treated surgically in elderly patients older than 75 years?

BACKGROUND: Diagnosis of primary hyperparathyroidism (PHPT) is increasingly suspected in elderly patients after the discovery of hypercalcemia by routine measurement of serum calcium levels. Surgery is commonly accepted as the optimal treatment of PHPT. We wanted to assess risk and results of neck exploration in elderly patients with PHPT. METHODS: We performed a retrospective study of the charts of 78 patients older than 75 years (mean age, 79.1 years) with PHPT who underwent neck exploration during a 15-year period. RESULTS: The most common presenting symptoms were neurologic and psychiatric disorders (47 patients). Preoperative localization investigations, performed in 72 patients, were successful in 42 of them (sensivity, 58%). Single adenoma, double adenomas, and hyperplasia were found in 74 patients (95%), three patients, and one patient, respectively. Overall postoperative mortality was 3.8% (three patients) with no death since 1984. Significant complications occurred in three patients (4%): one myocardial infarction, one pulmonary embolism, and one cerebral hemorrhage. Average length of postoperative hospital stay was 4 days. Among patients who could be followed up (65 cases with a mean follow-up of 3 years), 94% reported an improvement in their symptoms. This was especially marked for fatigue and intellectual function. CONCLUSIONS: These data support a liberal approach regarding surgical treatment in elderly patients with PHPT.

Adenoma↗
PubMed1994

[Flow cytometry of thyroid tumors. Study of fresh tissue in 50 patients].

OBJECTIVES: A measurement of cell DNA content would be highly useful in determining the malignant nature of thyroid tumours in cases without distinctive features such as metastases, capsule invasion or emboli. Abnormal cell ploidy can be recognized with flow cytometry, but it is not known whether such results have diagnostic value. We therefore compared--in a double blind prospective study--the results of flow cytometry and pathologic diagnosis in fresh tumoural and non-tumoural thyroid cells. METHODS: Fifty unselected cold thyroid nodules were obtained from 50 consecutive patients (40 women, 10 men; age 18-80 years; mean 46) who underwent surgery within a 6 month period. Surrounding non-tumoural tissue was also obtained in 46 of them. Cell ploidy and the percentage of cells in each cell phase was determined with flow cytometry for both tumoural and nontumoural tissues. Two pathologists, unaware of the flow cytometric results, independently established the histologic diagnosis according to the WHO classification. RESULTS: The pathologic diagnosis was carcinoma in 7 cases (papillary carcinoma 6, vesicular carcinoma 1) and benign adenomas in 43 (29 macrovesicular, 11 microvesicular, 3 oncocytal). All the non-tumoural tissue samples were diploid. All 7 carcinomas were diploid and 10 of the 43 benign adenomas were aneuploid (4 near-diploid, 3 hyperploid, 1 near-tetraploid, 2 multiploid). The mean proliferation index was increased in 5 diploid tumours. CONCLUSION: These findings confirm that cell ploidy measured by flow cytometry is of no diagnostic value in the thyroid gland. It was also revealed that aneuploidy in adenomas may be related to tissue rearrangements of undetermined prognostic significance.

Adenoma↗
PubMed1993

[Unusual association of somatostatin-secreting thyroid cancer and a calcitonin-secreting duodenal endocrine tumor. Is it an entity?].

We report a patient with a vesicular thyroid carcinoma secreting somatostatin and associated to an endocrine duodenal calcitonin secreting tumour. Increase of plasm somatostatin level induced an endocrine syndrome which completely resolved after thyroidectomy. By contrast, the digestive tumour remained asymptomatic. Six months after surgery, the course was marked by a relapse of the thyroid tumour along with pulmonary metastasis. At that time, pathological analysis showed only indifferentiated tumoural tissue.

Aged↗
PubMed1991

Hepatic trauma: experience with 135 consecutive liver injuries (1982-1989) and arguments for conservative surgery.

Most hepatic traumas are easily cured, but the series of 135 consecutive hepatic wounds reported in the present paper is unusual in that the patients were specifically recruited from among patients subjected to neurosurgical or spinal operations, 25% of whom sustained severe hepatic injuries (classes IV and V) as a result of the surgery. The postoperative mortality was analyzed according to such potentially predictive factors as severity of the hepatic wound, the concomitant extraabdominal lesions, the initial shock, and the kind of surgical treatment. The statistical comparison of the factors affecting the results was analyzed by the Chi-square test. The postoperative mortality rate was 24.4% (33 deaths). This mortality rate is evidently related to the severity of the hepatic lesions and to the frequent associated lesions. The 14 deaths from benign and moderate hepatic injuries were due to concomitant lesions. Among the 19 deaths from severe lesions, 12 were directly related to the severity of the hepatic injury and 7 to associated wounds. Complications directly related to the hepatic trauma occurred in 39 cases with 16 deaths. In general, conservative surgical treatment can be performed with quite low mortality. Among the patients who require hepatic resection one of two dies of hemorrhage or coagulopathy. Among conservative procedures, perihepatic packing has proved to be efficient and safe. If perioperative cholangiography has excluded any leak from a major bilde duct, septic complications are rare. Therefore, the surgical treatment of hepatic trauma should be as conservative as possible, because this can stop hemorrhage and decrease the risk of coagulopathy.(ABSTRACT TRUNCATED AT 250 WORDS)

Adolescent↗
PubMed1991

[Thyroid abcess. Apropos of 5 cases].

Thyroid abcess and acute suppurative thyroiditis are uncommon, representing 0.1 to 0.7% of surgically treated thyroid pathologies. More common in children than in adults, this rarity is associated with poorly indicative clinical symptoms, thus making diagnosis difficult. Five cases reports are presented, 4 of them in adults, illustrating the diagnostic difficulties and the various etiopathological mechanism, thereby explaining the wide diversity of pathogenic agents responsible. Treatment includes surgery (drainage or (partial) thyroidectomy, depending upon the presence or not of an underlying thyroid pathology) and intravenous antibiotics. It is absolutely necessary to eliminate the source of the infection, often a piriform sinus fistula whose total resection effectively prevents a relapse (1 case in this series).

Abscess↗
PubMed1988

[The new clinical picture of primary hyperparathyroidism. Diagnostic circumstances and current symptomatic characteristics. Results of a multicenter study].

Primary hyperparathyroidism (PHP) is particularly interesting at this time because of the modifications of its traditional symptoms, which have renewed the conditions of its diagnosis. This is the result of a better knowledge and consequently an increased frequency of the simple forms, mild or clearly atypical, usually expressing the initial stages of the disease which are now better detected. The relative part of the classical manifestations of the disease is therefore reduced as well. In order to verify this fact, the authors have initiated a retrospective study of 535 recent cases of PHP, over 12 years, comparing them with 322 older cases, examined and operated upon between 1954 and 1976 by P.L. Chigot. Analysis of the differences that were noted, was the subject of a statistical evaluation. The first result of this investigation is that PHP remains a disease affecting predominantly women, especially between the ages of 40 and 60 years, and beyond that age to a lesser degree. In comparing the data obtained from analyzing the circumstances of discovery of the disease and its symptoms, the most striking modification consisted in a real drop in the frequency of bony lesions. These modifications are much more rare, only exceptionally presenting their classical characteristic X-ray appearance and they only represent a factor of contingency in the clinical picture of PHP. This is probably the result of a much earlier discovery of the disease. The incidence of renal insufficiency is also remarkably low, probably for the same reason. In return, asthenia and urinary lithiasis are now the major symptoms of PHP.(ABSTRACT TRUNCATED AT 250 WORDS)

Adult↗