Search Results
Results 501 - 550 of 1378
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Kwok Philip Chong-hei - - 2003
PURPOSE: The relationship of the portal vein bifurcation to the liver capsule in Asians, which is an important landmark for transjugular intrahepatic portosystemic shunt, has not previously been described. METHODS: The anatomy of the portal vein bifurcation was studied in 70 adult Chinese cadavers; it was characterized as intrahepatic or ...
Opitz T - - 2003
We present a 40-year-old female patient with epigastric pain, ascites, and progressive liver failure, caused by Budd-Chiari syndrome (BCS) with thrombotic occlusion of the right and middle hepatic veins. As underlying diseases, essential thrombocythemia and resistance to activated protein C (APC) due to heterozygote factor V Leiden were found. Initial ...
Gaiani Stefano - - 2003
This study was aimed to assess the effect of Levovist on Doppler parameters of splanchnic hemodynamics. A total of 12 patients with cirrhosis and 12 healthy subjects underwent Doppler ultrasound (US) examination of the portal vein and of the hepatic, splenic and superior mesenteric arteries before, 5 to 8 and ...
Asfora Wilson T - - 2003
BACKGROUND: We present a patient on warfarin in whom a drainage port system was attached to the skull, successfully draining a subacute subdural hematoma. CASE DESCRIPTION: An elderly male presented to our institution with right hemiparesis a week following a motor vehicle accident. He was on warfarin for recurrent pulmonary ...
Nishio Hideki - - 2003
The goal of this study was to determine which projection for percutaneous transhepatic portography best depicts the anatomy of the proximal portal vein. Portograms ( n = 47) obtained in the anteroposterior, right anterior oblique, and right anterior caudal oblique projections were analyzed retrospectively. Lengths of the right portal trunk, ...
Settmacher Utz - - 2003
Permanent total arterialization of the portal vein in liver transplantation has been described as a method of providing portal inflow after insufficient thrombectomy due to chronic occlusion of the portal-vein system. A specific problem is the restriction of the arterial inflow and its long-term adaptation after transplantation. We describe here ...
Prakash Kurumboor - - 2003
BACKGROUND: Surgical resection is the only treatment modality that ensures complete tumor removal in patients with liver tumors involving a major portal vein branch or its bifurcation. Restoration of good portal blood flow is essential for recovery in the early postoperative period and for long-term survival. However, such extended resections ...
Tsukamoto Tadashi - - 2003
BACKGROUND/AIMS: We investigated the safety and efficacy of percutaneous transhepatic angioplasty with self-expanding metallic stent implantation to treat malignant portal vein stenosis. METHODOLOGY: Since 1995, we have performed metallic stent implantation in 7 cases of malignant portal vein stenosis (cholangioma, 3 cases; and cancer of the hepatic hilum, pancreatic cancer, ...
Bloss M F - - 2003
We present a case of TIPS occlusion in which a small caliber transhepatic safety or anchoring wire in combination with a standard transjugular approach were utilized to recanalize the TIPS, portal and splenic veins. This technique may be a useful adjunct to the typical methods used for recanalization of thrombosed ...
Hazel Susan J - - 2003
The chicken chorioallantoic membrane (CAM) has been extensively used in the study of angiogenesis. However, the CAM assay can be difficult and time-consuming to quantify, provides poor quality images of the results, and is not very reproducible. In this study, a novel early CAM assay was developed: It was found ...
Wiersinga W J - - 2003
BACKGROUND: The effectiveness of radiofrequency ablation (RFA) under selective vascular occlusion and its effects on architecture and viability of normal liver parenchyma was studied in a porcine model. METHODS: RFA was applied in the liver under general anaesthesia in 18 pigs. Six animals were killed immediately after the procedure and ...
Fujii Yoshiro - - 2003
BACKGROUND/AIMS: Major hepatectomy can now be successfully performed after portal vein embolization, but the effects of portal vein embolization have not been clearly delineated. Our objective is to examine whether portal vein embolization really contributes to the success of major hepatectomy. METHODOLOGY: Thirty-eight patients underwent portal vein embolization and hepatectomy ...
Cazals-Hatem Dominique - - 2003
Hepatic parenchymal changes associated with Budd-Chiari syndrome (BCS) have been tentatively explained by combined arterial and portal perfusion disturbances in addition to the complete occlusion of hepatic veins. The aim of this study was to correlate pretransplant course and vascular imaging with pathologic findings in livers explanted for BCS. Seventeen ...
Uflacker Renan - - 2003
Portal vein thrombosis (PVT) is an uncommon cause for presinusoidal portal hypertension. PVT can be caused by one of three broad mechanisms: (1) spontaneous thrombosis when thrombosis develops in the absence of mechanical obstruction, usually in the presence of inherited or acquired hypercoagulable states; (2) intrinsic mechanical obstruction because of ...
Tsukamoto Tadashi - - 2003
A 57-year-old man was referred to our hospital for treatment of refractory gastric bleeding from gastric varices secondary to portal vein thrombosis. The patient's liver function tests and coagulation profile were normal. The venous phase of the superior mesenteric arteriogram, on the other hand, showed superior mesenteric vein-portal vein occlusion ...
Baker Mark E - - 2003
PURPOSE: To determine the presence and location of portal vein thrombi in patients who have undergone ileal pouch-anal anastomosis (IPAA) and who were scanned with computed tomography (CT). MATERIALS AND METHODS: During a 4-year period, 92 of 702 patients underwent contrast medium-enhanced CT after a total proctocolectomy with an IPAA. ...
Lee Sung-Gyu - - 2003
Right lobe living-donor liver transplantation (LDLT) is often not attempted in donors with anomalous portal venous branching (APVB). The authors describe their experience with portal vein (PV) reconstruction in 17 cases of APVB in right lobe LDLT. From July 1997 to December 2001, 214 right liver LDLT were performed at ...
Braun U - - 2003
Catheterization of the portal vein using the Seldinger technique [Acta Radiol. (1958) 38, 368] was performed in 11 cows. Ultrasound-guided percutaneous portocentesis, using a 25-cm, 14-gauge steel cannula, was performed from the 10th, 11th or 12th intercostal space on the right side. A stylet was placed through the cannula, which ...
Cescon M - - 2003
We describe a case of living donor liver transplantation where an intrahepatic portal vein embolism was detected by intraoperative ultrasonography after the completion of portal and arterial anastomoses. The recipient portal vein trunk was clamped and the ligature of the graft's right portal branch was released, thus maintaining the sole ...
Flis Vojko - - 2003
BackgroundA large aneurysm of the main portal vein is rare, and the appropriate surgical procedure is uncertain. Reconstruction of a main portal vein affected by a large saccular aneurysm is described.Case outlineAbdominal pain led to the diagnosis of a large saccular aneurysm of the main portal vein in a 58-year-old ...
Yang D M - - 2003
BACKGROUND: We evaluated the imaging features of portal vein aneurysm occurring at the umbilical portion and the relation between portal vein aneurysm of the umbilical portion and portal vein anomaly. METHODS: Retrograde analysis was performed in 18 patients with portal vein aneurysm of the umbilical portion of the portal vein. ...
Kambe Taichi - - 2003
Rotational acetabular osteotomies are performed to correct dysplastic hips in young adults. However, there is a potential risk of intrapelvic vascular injury. To define the relation of these vascular structures to the bone around the acetabulum, we measured the distance and direction from the anteroinferior iliac spine to the external ...
Colle Isabelle - - 2003
A 51-year-old man with a history of portal vein thrombosis, was examined because of elevated liver tests and a tumoral mass in the liver hilus. Computed tomography (CT) scan and magnetic resonance imaging confirmed the portal vein thrombosis and an infiltrating mass in the porta hepatis with compression on the ...
Sato Tsutomu - - 2003
We report a case of relapsing jejunal varix with extrahepatic portal obstruction, which was successfully treated by embolization using interventional radiology. A 79-year-old woman suffered repeated episodes of tarry stools 2 years after undergoing jejunal resection for a jejunal varix. The bleeding point was inferred to be in the small ...
Murakami Gen - - 2002
Recently, the caudate lobe has seemed to be the final target for aggressive cancer surgery of the liver. This lobe has five surfaces: the dorsal, left and hilar-free surfaces and the right and ventral-border planes. Surgeons have divided the caudate lobe into three parts: Spiegel's lobe, which is called the ...
Ni Yuen-Hua - - 2002
Hypercoagulability is one of the causes of portal vein and superior mesentery vein thrombosis. We report a case of Bacteroides fragilis bacteremia associated with portal vein and superior mesentery vein thrombosis secondary to antithrombin III and protein C deficiency. The patient presented with high fever for more than 3 weeks. ...
Yamakado Koichiro - - 2002
A 66-year-old woman underwent partial hepatectomy and pylorus-preserving pancreaticoduodenectomy for advanced Klatskin-type cholangiocarcinoma, and five intrahepatic biliary-enteric anastomoses were created. One anastomosis between the anterior-superior segmental bile duct and the jejunum developed a refractory biliary leak. Selective portal venous embolization with use of ethanol was performed in the anterior-superior portal ...
Teshima Hideki - - 2002
A 63-year-old male with atrial fibrillation and mild mitral valve regurgitation was referred to hospital because of a descending aortic aneurysm. During the evaluation, he developed an encephalopathy because of hyperammoniaemia. Further examination revealed a portal systemic shunt, perhaps caused by the noncirrhotic portal hypertension. The patient underwent successful replacement ...
Ersch Jörg - - 2002
A 20-month-old male child died during an episode of acute bronchitis. The autopsy revealed massive hypertrophy and acute dilatation of the right heart which was caused by pulmonary hypertension exhibiting plexogenic arteriopathy and necrotizing arteriitis of small lung vessels. Further examination revealed complete old fibrotic occlusion of the extrahepatic portal ...
Alvarez Alfonso E - - 2002
Hepatopulmonary syndrome (HPS) is the clinical relationship between hepatic disease and the existence of pulmonary vascular dilatations, which can result in a range of arterial oxygenation abnormalities. It is probably caused by an alteration in the synthesis or metabolism of vasoactive pulmonary substances at a hepatic level, leading to vasodilatation ...
Buell Joseph F - - 2002
OBJECTIVE: To assess the long-term incidence of venous complications, including portal vein and hepatic vein stenoses, in both whole cadaveric and reduced-size cadaveric and living related liver transplants in a pediatric population, and to assess the therapeutic modalities in the treatment of these lesions. SUMMARY BACKGROUND DATA: A shortage in ...
Schaible Rolf - - 2002
We report the case of a 37-year-old man with necrotizing pancreatitis associated with inflammatory extrahepatic portal vein stenosis and progressive ascites. Four months after the acute onset, when no signs of infection were present, portal decompression was performed to treat refractory ascites. Transjugular transhepatic venoplasty failed to dilate the stenosis ...
Kuczkowski K M - - 2002
Cavernous transformation of the portal vein is a rare disorder resulting from extrahepatic portal vein thrombosis and development of collateral venous circulation. We report a case of a pregnant patient with congenital cavernous transformation of the portal vein associated with persistent consumptive coagulopathy and chronic thrombocytopenia. Single dose spinal anesthesia ...
Niwa Tetsu - - 2002
Congenital absence of the portal vein (CAPV) is a rare anomaly in which the intestinal and splenic venous drainage bypasses the liver and drains into the systemic veins through various venous shunts. In patients with CAPV, the portosystemic shunting causes disruption of the enterohepatic circulation and leads to various clinical ...
Goldberg S Nahum - - 2002
PURPOSE: The authors have recently developed a small-diameter, thin, flexible ultrasonic catheter device that permits the removal of thrombus by low-power transverse ultrasonic cavitation energy. In this study, the authors sought to determine whether this device could be used to eliminate portal vein thrombosis in an animal model. MATERIALS AND ...
Mucenic Marcos - - 2002
Portal vein aneurysm is a rare medical entity that can be caused by chronic hepatic diseases with portal hypertension. We describe a 45-year-old man with variceal bleeding from hepatosplenic schistosomiasis and an incidentally found intrahepatic aneurysm. Diagnosis was confirmed with non-invasive imaging exams, arteriography and liver biopsy. Following splenectomy, the ...
Lee Kwang-Hun - - 2002
Hepatocellular carcinoma (HCC) is the most common malignant tumor of the liver. Although several therapeutic options have been advocated, transcatheter arterial chemoembolization (TACE) in particular has been widely performed in the treatment of HCC. Still, hepatic arteriography and portography are mandatory for evaluation of (a) the resectability and multiplicity of ...
Møller S - - 2002
BACKGROUND: Patients with cirrhosis and portal hypertension have a hyperkinetic systemic circulation. A number of circulating vasoactive peptides, including endothelin-1 (ET-1), are elevated and, recently, increased arterial compliance has been described in these patients. The aim of the present study was to investigate a potential relation between altered arterial compliance ...
Miyazaki Hiroki - - 2002
A 32-year-old man was admitted to our hospital complaining of abdominal pain in the left upper quadrant. A mass was palpable on the left side of the umbilicus. Laboratory data revealed anemia, elevated erythrocyte sedimentation rate, hypergammaglobulinemia, and prolonged prothrombin time. Computed tomography demonstrated a soft tissue mass in the ...
Irisawa Atsushi - - 2002
BACKGROUND: In patients with portal hypertension, EUS reveals the presence of collateral vessels within and outside the esophageal wall such as esophageal varices, periesophageal collateral veins (peri-ECVs), paraesophageal collateral veins (para-ECVs), and perforating veins. This study retrospectively compared radial EUS images of these collateral vessels with histopathologic findings. METHODS: Four ...
Mao Guoxin - - 2002
OBJECTIVE: To study the effect of transcatheter arterial chemoembolization (TACE) combined with beta-ultrasound guided portal vein embolization (PVE) through fine-needle liver puncture for hepatocellular carcinoma. METHODS: 209 patients with primary hepatocellular carcinoma were divided into TACE group (104 patients) and TACE + PVE group (105 patients). RESULTS: The response rates ...
Hirshberg Boaz - - 2002
We've established a nonhuman primate islet allotransplant model to address questions such as whether transplanting islets into the gut's arterial system would more safely and as effectively support long-term islet allograft survival compared with the traditional portal vein approach. We reasoned that islets make up <2% of pancreatic cell mass ...
Ravenel James G - - 2002
Knowledge of the normal radiologic appearance and manifestations of disease in the azygoesophageal recess can facilitate the detection and diagnosis of intrathoracic disease. The azygoesophageal recess is located lateral or posterior to the esophagus and anterior to the spine. It extends from the anterior turn of the azygous vein to ...
Waguri Nobuo - - 2002
BACKGROUND: Idiopathic portal hypertension is an uncommon condition characterized by presinusoidal portal perfusion disturbance without known causes. METHODS: In the present study, portal and arterial perfusion dynamics were evaluated in two cases with idiopathic portal hypertension using computed tomography during arterial portography and hepatic arteriography. Ten cases with liver cirrhosis ...
Katakura Kyoko - - 2002
We report a case of rectal varices that developed after endoscopic injection sclerotherapy (EIS) and Hassab's operation for esophageal varices with extrahepatic portal obstruction. A 54-year-old woman was admitted to our hospital in September 1997 for treatment of hematochezia. Emergent colonoscopy revealed tortuous rectal varices with a white plug. Angiography ...
Walsh Timothy S - - 2002
During liver transplantation, reperfusion traditionally is performed through the portal vein. After anecdotal observations that patients who underwent reperfusion first through the hepatic artery were more hemodynamically stable, we performed an exploratory, prospective, observational, nonrandomized study to compare cardiovascular stability, acid-base status, and metabolic gas exchange between patients who underwent ...
Nesher E - - 2002
Gas in the portal vein is a rare and often fatal condition in surgical patients. However, the presence of gas in the mesenteric and portal veins in association with abdominal trauma is a transient incidental finding that resolves spontaneously. We describe a young patient with Crohn's disease who suffered air ...
Libbrecht Louis - - 2002
BACKGROUND/AIMS: The development of the intrahepatic bile ducts most likely requires interactions between epithelial and mesenchymal cells. In view of the epithelial-mesenchymal interactions between portal myofibroblasts (pMFs) and biliary epithelial cells in adult diseases of the bile ducts, we investigated the presence and function of pMFs during the development of ...
Asamura Hisao - - 2002
BACKGROUND: There is little information available regarding the relative advantage of stapling over ligation for major pulmonary vessels in lung resection. The thin and fragile structure of pulmonary vascular walls for their large luminal size might have made surgeons reluctant to use staplers. This study was intended to demonstrate the ...
Xu Yuan-Chang - - 2002
OBJECTIVE: To assess the value of helical CT in the diagnosis of liver diseases. METHODS: 59 patients with different liver diseases were examined by two-phase or multi-phase dynamic helical CT. RESULTS: Small hepatocellular carcinoma showed a higher density in the arterial phase, and a lower density in the portal vein ...
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