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Biomedical subjects

Y Chapuis

Publications and source records attributed to Y Chapuis.

At least 127 records · Page 7Linked to original sources
PubMed1988

[Adrenomegaly and other masses of the adrenal area. Diagnostic and therapeutic approaches].

During the 1982-1987 period 104 patients were surgically explored for a mass of the supra renal area. An adrenal tumor was found in 67%, an adrenal pseudo-tumor in 12.5%, a non adrenal pathology in 12.5%, and a tumoral involvement of the adrenal in 8%. Revealing circumstances were variable: 41% of the patients presented with endocrine symptoms (adrenal hypersecretion 83% or deficiency - 17%). In 30% abdominal pain was the chief complaint. In 24% the finding of the adrenal mass was totally fortuitous. In this latter circumstance the diagnostic difficulty is maximal and the strategy remains debated. Our approach would tend to be primarily surgical for fear of letting a malignant tumor evolve further.

Adrenal Gland Diseases↗
PubMed1987

[Surgery of primary hyperparathyroidism. Contribution of the peroperative assay of urinary cyclic AMP].

The increase of nephrogenic cyclic AMP is an excellent index of parathyroid hypersecretion. A successful treatment of primary hyperparathyroidism results in a rapid fall in nephrogenic cAMP. In a series of 24 patients with proven primary hyperparathyroidism (hyperplasia 3, adenoma 21) and 2 patients with suspected hyperparathyroidism, the success of surgical excision was evaluated by measuring the urinary cAMP/urinary creatinine ratio (R), which in the absence of renal impairment, is proportional to the level of nephrogenic cAMP. Sequential assays of urinary cAMP and creatinine were performed during surgery; laboratory results were available within less than one hour. Among 22 patients with elevated baseline value or R, R became normal in 18 and decreased by more than 50% in 3; these findings suggested that the operation would be successful. In 1 case, R was not measured as the patient had impaired renal function. In another patient with normal baseline value of R, R did not significantly decrease after excision. Surgery failed in 1 patient, although the high value of R at the end of the operation should have prompted us to continue. Finally, in 2 patients the diagnosis was erroneous since R was lower than 0.5 as in controls. Surgeons, therefore, now have a reliable biochemical method at their disposal, but its use will be limited by its cost and complexity.

Aged↗
PubMed1987

[Tumor and pseudotumor lesions of the adrenal area not to be misdiagnosed].

Thirteen patients with a mass in the adrenal gland area discovered at ultrasonography or computed tomography were studied. Hormone levels were normal in all but three patients with adrenal insufficiency. With the exception of three patients with metastatic tumours or adrenal lymphoma, all were operated upon on account of complications or for diagnostic purposes. The pre-operative diagnosis was confirmed by histology in 5 out of 10 cases (tuberculous abscess in 2, cysts in 2 and 1 haematoma in 1 case). In the remaining 5 cases the tentative diagnosis was erroneous: these patients had haematoma, neurofibroma, schwannoma, leiomyosarcoma and angiomyolipoma respectively. Thus, ultrasonography and computed tomography do not always differentiate between adrenal and extra-adrenal masses and between malignancy and non-malignancy; surgical excision therefore seems to be desirable in such cases.

Adrenal Gland Diseases↗
PubMed1987

[Intrahepatic collections of fluid of pancreatic origin. A case].

A case of intrahepatic liquid collections of pancreatic origin is reported. A search in the literature yielded 8 cases of pancreatic pseudocysts which developed in the liver left lobe. The present case was original owing to its localization in the right hepatic lobe, to the large volume of the intrahepatic effusions and to the scarcity of underlying pancreatic symptoms. Ultrasonography and computerized axial tomography were useful aids to the diagnosis as well as to the therapeutic procedures. Surgery, which usually is a matter of discussion in chronic pancreatitis, was necessary to obtain the favourable outcome expected in such diseases.

Humans↗
PubMed1987

Surgical approach to the superior mesenteric artery by the Kocher Maneuver: anatomy study and clinical applications.

The Kocher maneuver allows approaching the origin of the superior mesenteric artery. This affords adequate exposure for procedures such as embolectomy or mesenteric arterial reimplantation into the aorta. Because of its simplicity, this technique may be better than the classical interpancreaticoduodenal or splenopancreatic methods. The results of 11 cadaveric dissections and two surgical operations for mesenteric ischemia using this technique are reported.

Aged↗
PubMed1987

[Accidents caused by arteritis after fracture or tibial osteotomy].

In five cases of fracture or osteotomy of the tibia complicated by delayed union, non-union or infection, a latent chronic vascular insufficiency was belatedly discovered, often after failure of local treatment. It was responsible for the complication, since, in all the cases, the restoration of arterial patency resulted in healing. A study of the arterial circulation should be made, especially in smokers, when there is delay in union.

Aged↗
PubMed1986

[Launois-Bensaude disease. Treatment with wide transverse cervicotomy].

Launois-Bensaude disease (known in English-speaking countries as Madelung's disease) is a diffuse, symmetrical lipomatosis predominant on the neck, face and trunk. All the anterior cervical lipomas can be removed by a wide transverse cervicotomy without danger for the major neural structures (spinal, and facial nerves, cervical plexus). This technique was used in three patients with satisfactory cosmetic and functional results and without recurrence.

Adult↗