Search Results
Results 451 - 500 of 1378
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Osama Gaber A - - 2004
Clinical human islet transplantation has been performed successfully using a percutaneous transhepatic approach to access the portal vein. The risks from percutaneous delivery of islets, such as bleeding and puncturing neighboring structures, can be avoided by a transmesenteric approach to the portal vein, which we have used to stent completely ...
Yagi Hiroshi - - 2004
We report a rare case of patent ductus venosus (PDV) with collapsed intrahepatic portal branches and an intrapulmonary shunt. Excellent improvement of the intrahepatic portal vein flow was achieved by ligating the large ductus venosus under intraoperative portal vein pressure (PVP) monitoring. A 3-year-old boy being followed up for hypergalactosemia ...
Yamashita Yuki - - 2004
PURPOSE: We prospectively analyzed the clinical significance of transient portal vein stenosis soon after a pancreaticoduodenectomy (PD) as detected on three-dimensional computed tomography (3D-CT) for portography. METHODS: This study included 20 patients who underwent a generalized pancreatic head resection. A 3D-CT scan was taken seven times up until the eighth ...
Li Destri Giovanni - - 2004
Portosystemic shunts cause severe secondary effects, so that arterializations of the portal stump are planned to increase the blood supply to the liver. The aim of this study was to verify the technical feasibility of arterialization of the portal stump with the right renal artery in order to obtain a ...
Tobias Karen M - - 2004
To determine the feasibility of indirect suture passage around the right portal vein for attenuation of right-sided intrahepatic portosystemic shunts (IHPSS). Anatomic study of cadavers and prospective evaluation of clinical cases. Nine canine cadavers (median weight, 20.5 kg) and 6 client-owned dogs suspected of having right-sided IHPSS. Silicone casts of ...
Ohkubo Masayuki - - 2004
Portal vein embolization can be performed safely, and so far no major complications have been reported. We report an extremely rare complication of portal vein embolization, a case of portal and mesenteric thrombosis in a 65-year-old patient with protein S deficiency. Right portal vein embolization was carried out prior to ...
Matsui Osamu - - 2004
Various types of hepatocellular nodules are seen in cirrhotic livers. In these nodules, two types of human hepatocarcinogenesis are now considered. One is de novo hepatocarcinogenesis and the other is the stepwise development from high-grade dysplastic nodule (DN), high-grade DN with well-differentiated HCC foci, and overt HCC. According to our ...
Hwang Shin - - 2004
The left-sided gallbladder is very rare, but it is often accompanied by multiple anomalies of the liver, by which living donor hepatectomy cannot be feasible or becomes difficult. We have experienced 3 donors with a left-sided gallbladder out of 642 living donors. The first case was a male donor showing ...
Cho Yong-Hyun - - 2003
Although reports of hypoplasia or absence of the liver of left lobe are not few, descriptions of the intrahepatic vessels are rare but valuable for discussion of the pathogenesis. The present report demonstrates a case of the left surgical lobe hypoplasia that is characterized by 1) the scar-like lobe with ...
Filik Levent - - 2003
Hepatoportal arteriovenous fistulas are an uncommon cause of portal hypertension and may lead to severe gastrointestinal bleeding. Esophageal varices are the main source of hemorrhage in patients with portal hypertension. We report a 40-year-old man with a hepatic arterioportal fistula, who had gastrointestinal bleeding from jejunal varices. He had had ...
Kazkayasi Mustafa - - 2003
OBJECTIVE: We performed this study to investigate the morphologic and topographic anatomy, and variations of the infraorbital canal (IOC), infraorbital nerve (ION), and infraorbital foramen (IOF). STUDY DESIGN AND SETTING: This study was performed at the Anatomy Department of Ankara University School of Medicine between 1999 and 2000. The morphometry ...
Audet M - - 2003
Three cases of prehepatic portal vein thrombosis, complicated by the clinical manifestations of portal hypertension, were successfully treated by surgically created splanchnic-intrahepatic portal bypass. Two out of three patients had been previously submitted to liver transplantation. No significant morbidity was observed and long-term Doppler evaluations proved the patency of the ...
Ko Saiho - - 2004
Major variations of the primary portal vein ramifications at the porta hepatis, such as trifurcation or an anterior sectorial trunk originating from the left portal vein (L+A pattern), seem to be relatively common morphologic features, with an incidence of 10% to 30%. However, it has not been clearly demonstrated whether ...
Kakizaki S - - 2003
Gastroesophageal varices are the major complication of portal hypertension. Ectopic varices develop in various organs such as the duodenum, colon, and gallbladder. However, varices other than at gastroesophageal or rectal sites is a rare entity. We report a 53-year-old patient with primary biliary cirrhosis complicated by sigmoid colonic varices. Computed ...
Miyake Hidenori - - 2003
BACKGROUND/AIMS: Preoperative right portal vein embolization enhances remnant liver function following massive hepatectomy. Several studies have reported an increase in the volume of the left hepatic lobe after right portal vein embolization, but little information exists regarding heat shock protein induction in hepatocytes after right portal vein embolization. The objective ...
Luo Ming-Yue - - 2003
AIM: To investigate multidetector CT (MDCT) findings of hepatocelluar carcinoma (HCC)- associated hepatic arteriovenous shunt (HAVS) and to evaluate their clinical significance. METHODS: Thin-slice and dynamic enhancement MDCT of HAVS was performed on 56 patients with HCC. MDCT findings, including those of portal veins, hepatic veins, superior mesenteric veins, splenic ...
Zhang Junlan - - 2003
BACKGROUND & AIMS: Cirrhosis and portal hypertension due to chronic common bile duct ligation reproduce the features of human hepatopulmonary syndrome, whereas portal hypertension alone due to partial portal vein ligation does not. Nitric oxide contributes to experimental hepatopulmonary syndrome, but the nitric oxide synthase forms involved remain controversial. Recently, ...
Li X P - - 2004
The purpose of this study was to understand the clinical significance of the morphology and blood supply of the falciform ligament in laparoscopic surgery. The structure, blood vessel distribution and anastomoses of the falciform ligament were observed in 20 cases of living laparoscopy, 30 cadaveric specimens injected with latex and ...
Sato Takahiro - - 2003
An 81-year-old woman with idiopathic portal hypertension was admitted to our hospital with anal bleeding. Colonoscopy revealed tortuous rectal varices extending 5 cm proximal of the dentate line. The rectal varices were considered to be the most likely cause of the bleeding, although the precise site could not be determined. ...
Yamagami Takuji - - 2003
OBJECTIVE: The purpose of our investigation was to examine changes in the hemodynamics of the liver after artificial occlusion of a gastrorenal shunt. SUBJECTS AND METHODS: Nine patients with portal hypertension underwent splenic arteriography and CT arterial portography during infusion of contrast material via the splenic artery. Images were obtained ...
Ide Tatsushi - - 2003
We tried to establish an animal model of portal venous thrombosis in order to analyze the ensuing pathological changes of the liver. An emulsion with Escherichia coli endotoxin and Lipiodol-Ultra-Fluide was injected into the portal vein of the left anterior lobe of the rabbit liver. The target lobe and portal ...
Ateş Oğuz - - 2003
For the treatment of recurrent bleeding despite sclerotherapy or clinically significant hypersplenism, portosystemic shunt procedures should be performed in cases of extrahepatic portal hypertension caused by extrahepatic portal vein thrombosis. A novel alternative to portosystemic shunt procedures in extrahepatic portal hypertension is mesenterico-left portal bypass. Portal vein thrombosis is bypassed ...
Brieger Jens - - 2003
RATIONALE AND OBJECTIVES: To evaluate the efficiency of 4 radiofrequency (RF) systems by assessing the amount of delivered energy for each thermal induced lesion after perfusion mediated RF ablation and to compare the influence of perfusion mediation types on the energy efficiency. METHODS: A total of 43 ablations in 16 ...
Okur N - - 2003
Aneurysm of the portal venous system, a localized fusiform or saccular dilatation, is a rare clinical abnormality. Most aneurysms are located in the extrahepatic segment and rarely in intrahepatic branches. Portal vein aneurysms are usually uncomplicated and asymptomatic and detected incidentally during diagnostic work-up. We describe a case of a ...
White Robert N - - 2003
A retrospective study of the use of intraoperative mesenteric portovenography (IOMP) in the surgical management of congenital portosystemic shunts in 100 dogs and cats was performed. Each portovenogram was scored using a subjective visual analogue scale (VAS) and was assessed for the presence of portal atresia or hypoplasia. VAS scores ...
Ko H S - - 2003
The case of a 35-year-old male with portal vein erosion and acute life-threatening abdominal hemorrhage as a complication of acute pancreatitis is reported. Erosion of arterial walls is the most common complication of pancreatitis and pancreatic pseudocysts, and erosion of the portal vein leading to a fistula between the pancreas ...
Teramoto Kenichi - - 2003
We report a case of hepatic artery embolization and partial portal vein arterialization for the treatment of a delayed massive hemorrhage after a pancreaticoduodenectomy. A 70-year-old male underwent a pancreaticoduodenectomy for the treatment of lower bile duct cancer. A slight discharge of pancreatic juice was recognized early during the postoperative ...
Spahr Laurent - - 2003
BACKGROUND: Altered portal hemodynamics and inflammation may occur following transcatheter arterial chemoembolization (TACE), but early biological and portal perfusion changes are not well characterized when this procedure is performed selectively. MATERIAL/METHODS: We studied variations in portal flow velocity (PFV) using Doppler ultrasonography, as well as serum TNFa, vCAM-1, and E-Selectin ...
Aktekin Mustafa - - 2003
OBJECTIVE: To define the detailed anatomy of the neurovascular bundle at the spinoglenoid notch and to report the dimensions of these structures in cadavers. METHODS: In the present study, the external diameters of suprascapular artery, vein and nerve were measured at the spinoglenoid notch region in 18 formalin fixed cadavers ...
Fernández-Rodríguez O M - - 2003
OBJECTIVE: The aim of this study was to describe a new model of auxiliary heterotopic partial liver transplantation with portal vein arterialization. MATERIALS AND METHODS: Three standard hepatectomies were performed in pigs. The left lateral lobe was surgically resected and portal vein arteriolization constructed by an end-to-side "Y" anastomoses between ...
Gehrke I - - 2003
BACKGROUND/PURPOSE: In children with portal vein (PV) thrombosis, hepatopetal portal flow can be restored by an innovative surgical procedure, the meso-portal-bypass (MPB), if the umbilical portion of the intrahepatic left PV and the superior mesenteric vein are patent. This is associated with resolution of symptoms related to extrahepatic portal hypertension ...
Senyuz Osman Faruk - - 2003
Portasystemic collaterals develop as a result of portal hypertension. The collaterals in the cardioesophageal region is the leading cause of bleeding from esophageal varices. Some of the portal hypertensive patients present with bleeding episodes but the others do not, and some of the bleeders do not respond to endoscopic sclerotherapy ...
Hidajat N - - 2003
In a patient with refractory ascites after right hemihepatectomy TIPS was created between the left hepatic vein and the left portal vein via a transjugular approach. The puncture was guided only by sonography from the epigastrium. Portosystemic pressure gradient was reduced from 28 to 7 mm Hg and ascites disappeared. ...
Takahashi H - - 2003
A 44-year-old man was hospitalized because of right-sided abdominal pain and fever. On admission, he presented spike fever, jaundice, and renal failure. Abdominal ultrasonography and computed tomography showed extensive thrombus in the portal vein. Anaerobic bacteria were identified in arterial and portal blood cultures. Based on these findings, septic thrombosis ...
Kiyosue Hiro - - 2003
Balloon-occluded retrograde transvenous obliteration (BRTO) has become the treatment of choice for gastric varices at many institutions in Japan. However, in some cases that involve complex types of afferent or draining veins, the use of standard BRTO for the treatment of gastric varices may be associated with several difficulties that ...
Wilhelm Markus P - - 2003
We report the case of a young man with Budd-Chiari syndrome and occlusion of the inferior caval vein. Peripheral edema was his predominant complaint. Symptoms of portal hypertension were lacking, indicating membranotomy and not portosystemic shunting as the treatment of choice. At operation, membranotomy was not feasible, and a cavoatrial ...
Tsuneyama K - - 2003
AIM: To examine the pathological changes of hepatic arteries in idiopathic portal hypertension (IPH) which is characterized by the obliteration of the intrahepatic portal vein branches and presinusoidal portal hypertension. METHODS AND RESULTS: Liver specimens (biopsied or surgically resected) from 20 patients with IPH, 20 patients with alcoholic fibrosis/cirrhosis (AF/C) ...
Uenishi Takahiro - - 2003
A 57-year-old man, who had undergone hepatic arterial infusion chemotherapy with right portal occlusion for hepatocellular carcinoma was admitted to our hospital because of severe abdominal pain. Contrast-enhanced computed tomograms revealed that most areas of the liver were not enhanced, a finding suspicious for perfusion disturbance in the liver. Angiography ...
Shah S R - - 2003
BACKGROUND/AIMS: To assess the incidence of extensive portal and splenic vein thrombosis in patients with extrahepatic portal vein obstruction and determine the differences in presentation, portal hemodynamics and management as compared to patients with portal vein thrombosis alone. METHODOLOGY: 118 patients of extrahepatic portal vein obstruction presenting with variceal hemorrhage, ...
Maleux G - - 2003
One month after onset of an acute biliary pancreatitis, a 75-year-old man developed refractory ascites. Duplex ultrasound and CT scan revealed a focal stenosis of the extrahepatic portal vein as confirmed by transhepatic direct portography. In the same session, this stenosis, responsible for symptomatic prehepatic portal hypertension, was successfully dilated ...
Settmacher Utz - - 2003
We describe here the indications for and our experience with complex vascular reconstructions in living donor liver transplantation. From December 1999 to June 2002, 59 patients underwent liver transplantation, 51 receiving the right lobe, and 8 the left lateral lobe, as a graft from a living donor. The indication for ...
Toledo Nair S G - - 2003
PURPOSE: To evaluate the correlation and agreement between ultrasonographic (US) measurement of craniocaudal displacement of the left intrahepatic branches of the portal vein and radiographic measurement of right hemidiaphragmatic mobility. MATERIALS AND METHODS: Fifty-one patients with indications for abdominal angiography or percutaneous cholangiography prospectively underwent radiographic evaluation of right hemidiaphragmatic ...
Lawson Nathan D - - 2003
In this study, we utilize transgenic zebrafish with fluorescently labeled blood vessels to identify and characterize a mutant (y10) that displays specific defects in the formation of arteries, but not veins. We find that y10 encodes phospholipase C gamma-1 (plcg1), a known effector of receptor tyrosine kinase signaling. We further ...
Ince Ali Tüzün - - 2003
The case of a 65 year old woman referred for further evaluation of back pain and with abnormalities at ultrasound including increase in portal vein diameter and splenomegaly is presented. Other tests, including bone marrow biopsy and Doppler ultrasound, led to a diagnosis of portal vein thrombosis secondary to chronic ...
Deneve Eric - - 2003
Aberrant gastric veins draining directly into the liver are rare variations of the portal vein system. We report on an autopsy in which both right and left gastric veins drained directly into the liver without joining the portal vein. Although the left gastric artery adopted a standard disposition, the left ...
Francis Isaac R - - 2003
OBJECTIVE: Our aim was to determine which of three contrast-enhanced phases (early arterial, late arterial, or portal venous) was optimal for achieving maximal enhancement of the celiac artery, portal vein, and hepatic parenchyma. We also wanted to learn which phase provided the maximal tumor-to-parenchyma difference when using multidetector CT (MDCT) ...
Khanna Rahul - - 2003
We report a 12-year-old boy with cavernomatous malformation of the portal vein who presented with repeated hematemesis. Inferior meso-caval shunt was performed to decompress the portal hypertension. There was minimal dissection and disturbance of periportal collateral channels in comparison to using the superior mesenteric vein. One year later, esophagoscopy showed ...
Perarnau Jean-Marc - - 2003
BACKGROUND/AIMS: Because of our previous experience with transjugular intrahepatic portosystemic shunt, we decided to apply the transjugular approach to preoperative portal embolization. The aim of this pilot study was to determine the feasibility and the potential advantages and disadvantages of this new method. METHODOLOGY: Under ultrasound guidance the right or ...
Hirai Ichiro - - 2003
This study investigates the relevant anatomy for applying the hanging maneuver to hepatectomy by an anterior approach, where liver mobilization is not possible. Using 176 cadaveric livers, we morphometrically investigated the distribution of venous openings within the retrohepatic portion of the inferior vena cava (IVC); next, we conducted a series ...
Shin D H - - 2003
We report a case of patient with Clostridium perfringens septicemia and thrombophlebitis of the portal vein (pylephlebitis), probably secondary to an initially unrecognized gastric ulcer. The extension of the thrombosis from the superior mesenteric vein to the main portal vein on a repeat CT scan and subsequent partial resolution of ...
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