[Emergency vascular access conversion to native arterio veinous fistula: a prospective study of 37 hemodialysis patients in Rwanda].

Unlabelled: Chronic hemodialysis in Rwanda is relatively recent and most of patients are treated with catheters.

Summary: Thirty-seven patients who require chronic hemodialysis with catheters were evaluated during a 3-years period in order to facilitate the creation of a permanent vascular access for hemodialysis (AVF). Patient selection were made during a multi-disciplinary consultation.

Carotid surgery in private practice: what kind of change in the last 15 years?

Background: This retrospective study analyzes and compares the results of patients undergoing carotid endarterectomy (CE) for atherosclerotic stenosis obtained by 2 surgeons during two 5-year periods. Group 1 (G1) represents the first period (January 1994-December 1998) and group 2 (G2) represents the second period (January 2006-December 2010). Our objective was to answer the 2 following questions: (1) Has the population changed between these 2 periods with regard to age, risk factors, and symptoms? (2) Have the techniques we used in G2--local anesthesia and eversion technique--improved the results?

Methods: G1 included 682 CE procedures on 610 patients and G2 included 629 procedures on 592 patients.

Squamous cell carcinoma arising in recurrent odontogenic keratocyst: case report and literature review.

Background: Keratinizing odontogenic cysts of the mandible commonly have an aggressive clinical course, marked by multiple recurrences. Primary intraosseus carcinoma (PIOC) of the mandible is rare, and when it occurs it is often found to be arising in or closely associated with some type of cystic structure.

Methods: A patient with squamous cell carcinoma arising from an odontogenic keratocyst is studied clinically, radiographically, and pathologically.

Treatment of a distal splenic artery aneurysm with splenic conservation. A case report.

We report the case of a successful treatment of a splenic artery aneurysm by aneurysm excision and direct splenic artery reconstruction allowing spleen conservation. This aneurysm was related to an arterial wall medianecrosis. Because of the reappraisal of the splenic immunological function, we believe as others that this surgical management can be a new alternative to splenectomy as treatment of splenic artery aneurysms.

Experimental thrombosis on a collagen coated arterioarterial shunt in rats: a pharmacological model to study antithrombotic agents inhibiting thrombin formation and platelet deposition.

A rat thrombosis model was developed to assess the efficacity of antithrombotic drugs. It had the following characteristics: controlled hemodynamic and rheological conditions corresponding to arterial flow, a collagen coated surface as a relevant thrombogenic stimulus, a method of measurement allowing dynamic monitoring of thrombus formation and the possibility to assess the thrombus structure. A shunt composed of polyethylene and silicone catheters, including in the middle of the shunt a collagen coated glass capillary, was inserted between the two primitive carotids of the rat.

[Arterioarterial shunt coated with collagen. A model of acute arterial thrombosis for testing antithrombotic agents in rats].

We developed a new thrombosis model in Wistar rats. It consists of a shunt of which the central part is coated with collagen, a thrombogenic protein, implanted between the two carotid arteries of the rat. The occlusion time of the shunt is measured by a thermic method.

[Monomelic thermochemotherapy for malignant melanoma of the limbs. Results of a homogeneous series of 128 patients].

Thermochemotherapy through regional CEC has been applied to malignant melanomas of the limbs for a long time as it was described by Creech and Krementz more than twenty years ago. Strangely enough, its application has remained confidential in France. In order to assess this method, we have been applying it to 128 consecutive patients from January 1, 1982 to January 1, 1990.

Anterior urethral polyps.

The second reported case of an anterior urethral polyp is presented. The etiology, pathology and treatment of urethral polyps are discussed.

Sclerosing vascular variant of plasma cell granuloma.

A single mass in the right lung was found in a 33 year old asymptomatic male by routine chest x-ray examination. In the surgically removed right middle lobe was a well circumscribed but nonencapsulated round tumor (diameter, about 4 cm.) compressing and gradually becoming incorporated into the adjacent pulmonary parenchyma.

Pancreatic polypeptide cell hyperplasia with and without watery diarrhea syndrome.

Two cases of pancreatic polypeptide cell hyperplasia were obtained by operation. The first case exhibited adenocarcinoma of the stomach with metastases to the neck lymph nodes and pancreatic polypeptide hypersecretion. Pancreatic polypeptide cell hyperplasia was confirmed by the immunoperoxidase method and by the elevated level of pancreatic polypeptide in the pancreatic extracts and in the circulating blood.

Rheumatoid nodulosis: another cuase of juxtarticular nodules.

A case of rheumatoid nodulosis and the difficulties encountered in its diagnosis are presented. A positive rheumatoid factor, biopsy proved involvement of the synovium and bone at the second metacarpophalangeal joint, and regression of nodules and mild arthritic symptoms with gold therapy, supported the diagnosis of a rheumatoid disease variant. The relationship of the disease to rheumatoid arthritis, gout, and xanthomatosis is discussed.

Colonic perforation in Crohn's disease.

Three cases of acute, free perforation of the colon in Crohn's disease are described and their clinical and pathological features are detailed. Colonic perforation in Crohn's disease bears no definite relationship to obstruction or adrenocorticosteroid therapy. It may occur with or without toxic megacolon, and pathological study has not thus far suggested a common pathogenetic mechanism.

[Secreting paragangliomas of the organ of Zuckerkandl. A report on two cases (author's transl)].

The authors describe two cases of secreting paragangliomas of the organ of Zuckerkandl, beinging the number of known cases to 78. They underline the interest of arteriographic and phlebographic explorations which define more accurately the origin and spread of these tumours.

Performance analysis of an ex vivo geometric total knee prosthesis.

Studies were made of a well functioning geometric total knee prosthesis, removed at autopsy from a sixty-one-year-old man, which had been used for eight months. The components were firmly embedded in bone with no evidence of loosening. There was significant deformation of the polyethylene tibial component, but no significant wear on the metallic component.

Serum antibody in patients with breast disease: Correlation with histopathology.

Antibody to a breast cancer antigen was detected by immunodiffusion or complement fixation in at least one serum sample in 46% of 84 patients with a diagnosis of carcinoma, 34% of 96 patients with fibrocystic disease and 25% of 44 patients with fibroadenoma. A single serum sample obtained from screenees of the Detection Center for Breast Diseases was tested by immunodiffusion only and antibody was found in 3 of 206 screenees (1.5%).