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Biomedical subjects

Y Chapuis

Publications and source records attributed to Y Chapuis.

At least 145 records · Page 8Linked to original sources
PubMed1985

[Ultrasonic inspection of the permeability of surgical portacaval shunts].

Ultrasonography was used to evaluate the patency of portocaval shunts in 9 patients: 2 with spleno-renal anastomosis, 4 with portocaval truncular anastomosis, 2 with mesenteric-caval shunt and 1 with atypical shunt. The shunt count be demonstrated in 7 of these 9 patients. Angiography was performed in 6 cases and confirmed the results of ultrasonography--a finding favourable to the latter method and in agreement with those of other authors. However, the usefulness of ultrasonography varies according to the type of shunt created, as shown by our own experience and by published reports: 70% of portocaval truncular shunts, 65% of spleno-renal shunts and 46% of mesenteric-caval shunts are demonstrable by ultrasounds, these variations being due to differences in location and accessibility to the ultrasonic examination. It ultrasonography fails to display the anastomosis, it may provide indirect signs of patency. In addition to being harmless and relatively inexpensive, ultrasonography is a valuable method for evaluating portocaval shunts. It can easily be repeated and its results need not be confirmed by angiography.

Adult↗
PubMed1985

[Papillary adenocarcinoma of Wirsung's duct].

We describe a new case of ductal papillary adenocarcinoma of the pancreas, resected in 1976 (cephalic pancreatoduodenectomy). The patient is still alive. This particular histological type of pancreatic cancer seems to be very rare (9 cases published). The difficulty of preoperative diagnosis and the possibility of long-term postoperative survival clearly differentiate ductal papillary adenocarcinoma from other glandular adenocarcinomas of the pancreas.

Carcinoma, Intraductal, Noninfiltrating↗
PubMed1985

[Bacterial environment and infectious complications of arterial prostheses. Retrospective study of 111 cases].

648 pre-, per-, or post-operative bacteriological sample or 111 arterial prosthesis operated in a general surgical word were reviewed. Per operative cultures were positive in 2,5 per cent (intra-arterial thrombus or aneurysm wall), systematic post-operative cultures in 2,7 per cent (IV and urinary catheters, drains) and clinically oriented post-operative cultures in 10 per cent. No correlation between open pre-operative infection or bacterial contamination far from the wound and prosthetic infection was noted. Never the less, positive per-operative cultures or drains cultures has to be considered as a potential sepsis. According to the prevention of infection in a word including septic patients, the rate of prosthetic contamination was 1,8 per-cent and the rate of sub-cutaneous wound infection was 3,6 per-cent, which does not seem to be greater than usual results.

Adult↗
PubMed1982

Human chromosome analysis in 24 cases of primary carcinoma of the large intestine: contribution of the G-banding technique.

As in the haemopathies, the application of cytogenetics to epithelial cancers could aid in the study of their pathogenesis evaluation. In this context we performed chromosome analyses on a series of human colo-rectal cancers. The technique was consistently reliable since the modal number of chromosomes could be determined in all 24 cases. In 22, karyotypes could also be established. Each tumour was characterized by a single cell clone in 21 cases and by a mosaic of 2 populations in 3 cases. Numerical anomalies were not due to chance: they enabled near-diploid (11 cases), near-triploid (9 cases), mosaic (3 cases) and highly polyploid (1 case) cancers to be distinguished. Supernumerary chromosomes were primarily in groups C and F. The most frequent markers before denaturation techniques were No 2q +, No F and minutes. Each time double-minutes were observed (5 cases), they were in invasive cancers (B and C Dukes classification). Cells were generally diploid in non-invasive cancers with fewer quantitative and structural anomalies. Tumour cytogenetics were related to the histological type and localization in the colon, as well as to the local and metastatic spread.

Adenocarcinoma↗
PubMed1982

[Splenic abscess. 3 cases (author's transl)].

The authors report three cases of splenic abscess. The condition developed twice during a salmonella infection associated in one case with sickle cell disease. In two patients, the spleen was the site of a suppurated infarction. One patient died shortly after operation. Study of the 79 cases of splenic abscess treated surgically published since 1960 reveals a mortality of 16%. This rare condition is seen essentially during typhoid and septicaemias (endocarditis). Such pathology in also now seen in drug addicts. The diagnosis and, hence, the prognosis should be improved by the use of echography which seems to be the most reliable investigation before peritonitis by rupture which remains a complication associated with a heavy mortality.

Abscess↗
PubMed1979

[Arterial thrombosis caused by electric injury].

A thrombosis of the axillary artery was discovered in a 36 year old man, four days after electrocution. It was treated successfully by venous bypass. The case was then compared with five similar cases in the literature. The damaged arteries were situated in the area crossed by the electric current. The artery was normal above and below the thrombosis. The thrombosis was accompanied by parietal lesions. The development of the collateral circulation explains the absence of signs of acute ischemia. The pathogenic medico-legal and therapeutic aspects of these thromboses by electrocution are then discussed.

Adult↗