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Biomedical subjects

B Masson

Publications and source records attributed to B Masson.

48 records · Page 3Linked to original sources
PubMed1976

[Critical study of electric activity of the small intestine in the dog].

Thanks to a cross-circulation, the authors caused to survive in the abdomen of a sacrificed dog, the whole of the small intestine, the motor activity of which was analysed by electro-enterography. This experimental preparation thus eliminates polygraphic recordings of all potential variations outside the small intestine, e.g. stomach, colon, diaphragm, muscle, myocardium. One thus obtains very pure tracings of the variations of potential originating in the small intestine, recorded from bipolar serous intestinal electrodes, they show the activity of the small intestine, consisting of a permanent basal electric rhythm on which are grafted spikes contemporary of motor phenomena. In the abdominal skin there were recorded only a cutaneous slow wave which was contemporary with the deep motor phenomena.

Animals↗
PubMedDate not supplied

External iliac vein stenosis after segmental pancreatic transplantation: treatment by percutaneous endoprosthesis.

A stenosis of the iliac vein secondary to a fluid collection in a pancreas transplant was identified by color Doppler flow sonography. The pancreatic venous drainage was reversed to the contralateral iliac veins via venous collaterals. After two unsuccessful angioplasties of the vein stenosis, a Wallstent was positioned above the venous anastomosis, and has remained patent for 8 months. The pancreatic venous drainage became normal after the procedure.

Constriction, Pathologic↗
PubMedDate not supplied

Laparoscopic adjustable gastric banding results after 2 years with two different band types.

BACKGROUND: Laparoscopic gastric banding is the most common operation in Europe for morbid obesity. Many devices from different companies are now available. The aim of this study was to compare the results over a 2-year period of 2 types of band: the Lap-Band and the Minimizer band. METHODS: In a non-randomized study, 2 consecutive groups were prospectively analyzed. Group A consisted of 120 patients who received the Lap-Band, and group B consisted of 68 patients who received the Minimizer band which contains eyelets. All the bands were placed above the lesser sac by the perigastric approach. RESULTS: 4 early complications were observed in group A (1 phlebitis, 1 pneumopathy and 2 early displacements of the band); and 1 in group B (1 retention of urine). After a follow-up of 2 years, the displacement rate of the band was 10.8% in group A and 0% in group B. One gastric erosion was observed in group B, but not in group A. After 2 years, the average loss of excess weight was 50% in both groups. CONCLUSION: With the Minimizer band, we did not observe any slipping, and the efficacy with respect to weight loss was equivalent to the Lap-Band.

Adult↗
PubMedDate not supplied

[Is extended lymphadenectomy justified in surgery for pancreatic adenocarcinoma? Apropos of a series of 59 cases].

Between October 1987 and December 1992, we reviewed 130 medical records of pancreatic surgery for various pathologies, of which 57 cases had undergone cephalic duodenal pancreatectomy (C.D.P.) for pancreatic adenocarcinoma. There were 32 classical C.D.P. without lymphadenectomy and 25 C.D.P. with widened lymphadenectomy as practised by the Japanese workers Ishikawa, Manabe, and by others. Operatory mortality was 7% in both groups. On the other hand, morbidity was higher with widened lymphadenectomy and gave specific complications. Despite our short follow-up, it seems that the additional lymphatic excision does not significantly improve the rate of relapse or mortality. We have therefore stopped using the technique and have switched to per-operatory irradiation after tumoral excision.

Adenocarcinoma↗
PubMedDate not supplied

[Application of three-dimensional computer graphics in oncology].

Accurate 3D tumoral volume evaluation is now possible through the combined use and progress of computer graphics technics (3D reconstruction and visualization) and medical imagery (helicoidal TDM scanner). Specific organ and pathology oriented softwares can help answer rapidly to problems posed by oncologic praticians. A new decision support for diagnosis, therapy and follow-up is emerging. First results in liver tumors and hepatic regeneration macroscopic biometrics are presented. Tumoral or organ volumic index will be usable in the follow-up. TNM staging, external conformal radiotherapy for prostatic or brain tumors, drugs cytolytic effects evaluation will take great advantage of these technologies. 3D visualization and matching CT and MRI imagery can help computed assisted surgery.

Computer Graphics↗