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Biomedical subjects

J L Jost

Publications and source records attributed to J L Jost.

At least 55 records · Page 3Linked to original sources
PubMed1979

[Acute primary ischemic enteritis and colitis. Clinico-pathological and physio-pathological findings].

By opposition to acute post-operative ischaemic enterocolitis, the authors isolate, with the aid of seven cases, the intestinal lesions which spontaneously occur on the small intestines and on the colon and due to an ischaemic mechanism without thrombosis of the mesenteric vessels. After the description of clinical and anatomical features, they point out the main part of the vascular factor in the genesis of the lesions.

Aged↗
PubMed1979

[Retroperitoneal gas images following subperitoneal hollow viscus rupture (author's transl)].

Three cases of traumatic rupture of a subperitoneal hollow viscus are reported : two duodenal lesions and one rectal wound. Early diagnosis was possible in all three cases by the recognition of retroperitoneal gas on simple radiographs of the abdomen, which was evidenced by images containing air bubbles, which were also fasciculated and fairly fixed. They were unilateral, on the right side, and usually associated with disappearance of the psoas shadow in duodenal injuries. Rectal perforation produces a bilateral distribution of the retroperitoneal gas, which extends to the subperitoneal fat and the posterior extraperitoneal space, according to the amount of effusion.

Adolescent↗
PubMed1978

[Carcinomas of the transverse colon. A series of 75 cases (author's transl)].

The authors report a series of 75 cases of carcinoma of the transverse colon, involving equally the right and left halves. They rarely arose from the middle segment (10% of the series). Usually the tumour was very large affecting the serous layer with lymph node invasion. Liver metastases were frequent. 50% of patients were aged over 70 years. Theoretically, wide removal attempting to cure the disease means removing both colonic angles and the areas supplied by both the superior and inferior mesenteric arteries. But fairly often the existence of vascular variations in the transverse mesocolon permits one to restrict the extent of the resection whilst saving the basic principles of radical removal. Furthermore, in 20% the treatment was purely palliative. The operative mortality was high (25%). The five year survival, in the whole series was about 50%.

Aged↗
PubMed1978

[Sclerodystrophy of the sphincter of Oddi (author's transl)].

Among 1,645 biliary operation carried out between 1952 and 1974, the authors count 177 organic stenoses of the Oddi region. They recall the authenticity of chronic odditis, the pathological substratum of which is Oddi sclerodystrophy, a primary and progressive lesion. They emphasise the radiomanodebimetric criteria. The risk of an error of interpretation was 2% in this series. After discussing the etiopathogenesis and the physiopathological consequences of Oddi sclerodystrophy, they discuss the therapeutic choice between sphincterotomy and choledoco-duodenostomy. Temporary gall bladder drainage is only of interest in inflammatory labile manifestations without sclerodystrophy. The interest of diagnosis and initial surgical treatment of the lesion is that the classical post-cholecystectomy syndrome almost disappears.

Ampulla of Vater↗
PubMed1976

[Reflexions on the surgical treatment of diverticular sigmoiditis. Apropos of 62 cases].

The authors report 62 cases of operated diverticular sigmoiditis, note the indications for surgery and the method adopted. Apart from acute complications comparison of the clinical, laboratory and radiological data permit one to decide on a cold operation for prophylactic purposes. For acute generalised or localised peritonitis, the authors remove the lesions straight away when local and general conditions permit it. They emphasis the severity of the complications and the dealy with which these patients are still too often admitted on a surgical unit, which explins the persistently poor prognosis in spite of present conditions of resuscitation.

Abscess↗
PubMed1976

[Early and late results of choledoco-duodenal anastomosis during surgical treatment of biliary lithiasis. Apropos of a series of 62 cases].

The authors report a series of 62 choledoco-duodenal anastomoses carried out during surgical treatment of cholelithiasis and note the indications for this procedure, emphasizing the necessity for a wide common bile duct and a normal duodenum. Apart from complete obstruction of the common bile duct with gall stones, the main indication is organic obstruction of the terminal part and of the sphincter of Oddi. A 2 cm anastomosis is necessary. Duodeno-biliary reflux has no direct consequence in the absence of stenosis of the anastomosis and of pre-existing cholangitis. In the long term, the results are favourable in 95 p. 100 of cases.

Cholecystectomy↗
PubMed1973

Interactions of Tetrahymena pyriformis, Escherichia coli, Azotobacter vinelandii, and glucose in a minimal medium.

A study was made of the food web formed from a protozoon, two bacteria, and a glucose minimal medium in chemostat culture. The system was also divided into simpler parts, first by omitting the protozoon to obtain a competition system, and then by omitting one or the other of the bacteria to obtain two food chains. In the competition studies, one bacterium was displaced by the other at all holding times used. In the food chain studies, sustained oscillations of the population densities of predator and prey developed at short holding times, and then changed to damped oscillations at longer holding times. In addition, the level of residual glucose remained high at long holding times. A new model of microbial growth is necessary to explain these results. In the food web studies, predation of the protozoon on the two bacteria stabilized the competition between the latter and allowed their coexistence in the same habitat. Thus, Gause's principle was circumvented.

Antibiosis↗