[Radiologic results of an artificial pylorus performed primarily in patients with Billroth II gastric resection]. / Resultados radiológicos de um "piloro artificial" realizado primeiramente em pacientes com ressecção gástrica a Billroth II.

The authors describe the radiological results after primary execution of an "artificial pylorus". In 18 patients were done a troncular vagotomy, hemigastrectomy (Billroth II) and Braum jejunal anastomosis. In twelve of this patients an "artificial pylorus" were done on the efferent loop, 10 cm distant of the gastroenterostomy and before the jejunal Braun anastomosis. The technique, previously described, was a 3 cm circumferencial ressection of the longitudinal muscular layer and circular layer plicature. The cut edges were approached. A significant delay in gastrojejunal emptying was observed in patients with an "artificial pylorus" caused by the effective presence of a sphincter-like mechanism.

[Angiographic anatomy of the cecal artery]. / Anatomia angiográfica da artéria cecal.

After studying the angiographic anatomy of the cecal artery in 80 post--mortem examinations we have demonstrated the following: -The common cecal trunk (76,2% of the cases) had its origin from the right colic artery in 12 (15%) and from the ileal artery in 49 (61,2%) observations. -The anterior and posterior cecal arteries had a separate origin in 19 observations (23,7%). In 7 of these observations (8,7%) the anterior cecal artery had its origin from the right colic artery and, the posterior cecal artery originated directly from the ileal artery. In 11 observations (13,8%) both cecal arteries, originated directly from the ileal artery and, in one case (1,2%) the anterior cecal artery originated from the right colic artery and the posterior cecal artery from the ileocolic artery.

[Anatomoradiological patterns of vermiform appendix's arterial supply (author's transl)]. / Artéria apendicular: estudo anátomo-radiológico.

The authors tried to establish the most frequents anatomo-radiological patterns of the irrigation on the vermiform appendix. The search was done in one hundred cases they found six different patterns of arterial irrigation.