BACKGROUND Current recommendations for portal placement in laparoscopy are often imprecise. The aim of this study was to establish and evaluate a mapping system for portal placement during laparoscopic procedures in small animals. Sixty-four final-year veterinary students took part in this in papyro study. Descriptions of portal placements of two recent veterinary laparoscopic papers were rando...

A simple definition of a portal describes it simply as a gateway, and a Web portal as a gateway to a corporate intranet or to the Internet. In this paper we will compare a number of differing views of what constitutes a portal, and offer a definition of our own. There are also several different categorisations used to describe the various types of portal. In this paper we begin with one that co...

OBJECTIVE To evaluate the morbidity and mortality in surgical treatment of schistosomal portal hypertension in patients with inversion of the Portal/Splenic Vein diameter ratio. METHODS We conducted a retrospective cross-sectional study of patients undergoing surgical treatment of portal hypertension in the period between September 1993 and January 2004. The study population was divided into ...

postoperative portal vein thrombosis is a rare complication which occurs most often after hepatobiliary surgery.to date, few cases following laparoscopic cho lecystectomy have been reported. in this paper we present a case of portal vein thrombosis diagnosed with abdominal ct scan on the seventh day following laparoscopic cholecystectomy.the patient was administered therapeutic intravenous hepa...

Hepatic arterioportal fistulae are a rare cause of portal hypertension. The case is reported of a two-year old girl with a congenital arterioportal fistula, who presented with splenomegaly and ascites. Colour doppler ultrasound showed a large shunt between the left hepatic artery and a branch of the left portal vein, producing a reversal of flow in the main portal vein. She was treated by a for...

We tested the hypothesis that, due to greater hepatic free fatty acid (FFA) load, portal delivery of FFAs, as in visceral obesity, induces hyperinsulinemia and increases endogenous glucose production to a greater extent than peripheral FFA delivery. For 5 h, 10 microeq.kg(-1).min(-1) portal oleate (n = 6), equidose peripheral oleate (n = 5), or saline (n = 6) were given intravenously to conscio...

Blood flows in the hepatic artery and portal vein have been measured with a square-wave, electromagnetic flow meter. Hepatic arterial flow increased when portal venous flow was decreased, but, when hepatic arterial flow was decreased, portal venous flow also decreased. The relation between the two blood systems can be explained as the simple mechanical effect of interposing a slower-flowing str...

A method is proposed to reduce portal hypertension utilizing subtotal splenectomy and a central splenorenal shunt. The advantages of this method are: diversion of the splenic component of the portal circulation, creation of a shunt for the portal blood into the systemic circulation, preservation of the splenic function and correction of the manifestations of the hypersplenism. Two cases are pre...

BACKGROUND The non-alcoholic steato-hepatitis Clinical Research Network has recently shown that portal chronic inflammation is associated with liver fibrosis in American children with non-alcoholic fatty liver disease. AIM We tested whether the portal chronic inflammation-fibrosis association was present in a series of Italian children with non-alcoholic fatty liver disease. METHODS We re-a...

The paper presents a Web Portal for measurement application based on GRID Service as an innovative solution to provide researchers with a “collection” of measurement algorithms characterized by huge computational burden. In its current version, the portal allows the execution of two different algorithms (i.e. estimation of spectral density power and instantaneous frequency). Other functionaliti...