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Praseedom R K - - 2000
Antiphospholipid syndrome can have various clinical presentations, two of the most common being arterial and venous thrombosis. It is, however, unusual for them to occur in combination. We report here a case of combined hepatic artery and segmental portal venous occlusion in a 32-year-old patient who was shown to have ...
Ohkubo M - - 2000
An aberrant left gastric vein found in dissection is reported here. The right gastric vein did not exist and only the left gastric vein originating from the lesser curvature of the stomach was present. It directly entered the liver without typically joining the trunk of the portal vein. After giving ...
Ishikawa M - - 2000
BACKGROUND/AIMS: We studied compensatory hypertrophy following transcatheter portal embolization experimentally in dogs and clinically under the condition of cholestasis. METHODOLOGY: Experimental study: Sixteen dogs were used for this study. Transcatheter portal embolization was performed in the left lobes (70% of the total liver) using Gelfoam powder in dogs with 2-week ...
Hevener A L - - 2000
We sought to elucidate the role of the portal vein afferents in the sympathetic response to hypoglycemia. Laparotomy was performed on 27 male Wistar rats. Portal veins were painted with either 90% phenol (denervation group [PDN]) or 0.9% saline solution (sham-operated group [SHAM]). Rats were chronically cannulated in the carotid ...
Petit P - - 2000
Dissection of the portal vein is a rare entity which has been rarely described during transjugular intrahepatic portosystemic shunt (TIPS) procedure. We report three cases of dissection during this procedure and their complications. One dissection was immediately treated with coaxial stents. The two others were complicated either by a thrombus ...
Denys A L - - 2000
The aim of this study was to describe the intrahepatic hemodynamic modifications induced by right portal vein embolization (RPVE) using Doppler ultrasound. Eighteen patients with hepatocellular carcinoma (n = 8), liver metastases (n = 9), or multiple adenomas, underwent RPVE 1 month before right hepatectomy in order to increase the ...
Ikeda K - - 2000
Styrene-maleic acid neocarzinostatin (SMANCS) sometimes causes hepatic vascular side effects, including arterial stricture, obstruction, and arterio-portal shunt. A total of 128 intra-arterial SMANCS injection treatments, performed for 89 patients with hepatocellular carcinoma, were analyzed to determine the relationship between angiographic findings and subsequent hepatic vascular injuries. After SMANCS therapy, hepatic ...
Sezgin O - - 1999
Both hereditary hemorrhagic telangiectasia (HHT) and portal vein aneurysm are rare disorders. We described the first documented case of HHT associated with portal vein aneurysm. As the portal vein aneurysm in this patient associated with HHT, the pathogenesis in this patient seems to have been a congenital anomaly of the ...
Honda H - - 1999
OBJECTIVE: Our objective was to analyze the hemodynamic properties and vascular supply changes in the carcinogenesis of hepatocellular carcinoma. MATERIALS AND METHODS: Ten nodules (nine patients) (one early, three early-advanced, and six advanced cases of hepatocellular carcinoma) less than 3 cm in diameter were selected from 45 patients (50 nodules) ...
Hishitani T - - 1999
In case of progressive cyanosis after modified Fontan procedure, intrahepatic shunting should be considered. Ligation of the hepatic vein is safe and effective in managing this condition, and it is important to ensure that the pressure difference between superior vena cava and the portal vein system remains minimal after clamping ...
Bodner G - - 1999
A case of an aneurysmal portosystemic venous shunt detected by colour Doppler ultrasound (CDUS) is presented. A young female patient complained of postprandial fatigue and had paroxysmal tachycardia. A direct vascular communication between right portal vein and right hepatic vein was found at CDUS and confirmed by direct portal angiogram. ...
Killi R M - - 1999
Doppler sonography is being used routinely in evaluating the vascular structures of the native liver because of its ease of use, lower cost, easier availability, lack of need for X-ray and accuracy. Doppler sonography can well demonstrate the vascularization of liver tumors, portal vein thrombosis, portal vein abnormalities in patients ...
Martínez J A - - 1999
BACKGROUND: Arterial or venous homografts are frequently implanted for vascular reconstruction in orthotopic liver transplantation (OLT). When fresh vascular homografts (VH) from the same donor were not available, VH from another donor preserved at 4 degrees C in Terasaki (Ter) solution (modified lymphocyte culture medium) were used. METHODS: The clinical ...
Herrgesell E J - - 1999
The purpose of this investigation was to develop a safe and reliable technique for percutaneous catheterization of the portal vein via a major splenic vein using ultrasound guidance. Three separate catheter systems were evaluated on five anesthetized dogs. At least five attempts at catheterization of the splenic vein and subsequently ...
Nakao A - - 1999
Intravascular ultrasonography (IVUS) was performed to diagnose portal vein invasion by pancreatic carcinoma. In 55 patients with pancreatic carcinoma, the intravascular ultrasonographic catheter was introduced during operation through a branch of the superior mesenteric vein into the intrahepatic portal vein. The catheter was gradually withdrawn, and the cross-sectional images of ...
Massin M - - 1999
The authors discovered congenital absence of the portal vein, with visceral venous return to the right atrium, in a 5-year-old girl with aortic valvar stenosis. Interestingly, of the 19 patients, it was discovered that 11 reported with portal venous agenesis also had cardiac defects. We have, therefore, investigated the hypothesis ...
Bilbao J I - - 1999
New therapeutic alternatives to portal vein thrombosis (PVT) include the percutaneous, transhepatic infusion of fibrinolytic agents, balloon dilatation, and stenting. These maneuvers have proven to be effective in some cases with acute, recent PVT. We have treated two patients with acute PVT via transhepatic or transjugular approaches and by using ...
Aithal G P - - 1999
A 62-year-old male presented with variceal haemorrhage. Investigation demonstrated a fistula between the left gastric artery and portal vein with a porto-systemic gradient of 35 mm Hg. Variceal bleeding was controlled by a transcatheter embolisation of the fistula, but the patient died of septicaemia three weeks later. The second patient, ...
Perel Y - - 1999
Portal vein thrombosis is a rare but potentially lethal complication in children requiring splenectomy. We report on a 15-year-old boy with a dehydrated hereditary stomatocytosis, who underwent splenectomy and presented a postoperative partial portal vein thrombosis. With prompt heparin therapy, neither propagation of the thrombus nor further cavernous transformation in ...
Stoll B - - 1999
Fully fed piglets (28 days old, 7-8 kg) bearing portal, arterial, and gastric catheters and a portal flow probe were infused with enteral [U-(13)C]glutamate (n = 4), enteral [U-(13)C]glucose (n = 4), intravenous [U-(13)C]glucose (n = 4), or intravenous [U-(13)C]glutamine (n = 3). A total of 94% of the enteral ...
Lessie T - - 1999
PURPOSE: To evaluate the ability of 32phosphorus intraluminal irradiation to reduce pseudointimal hyperplasia in a transjugular intrahepatic portosystemic shunt (TIPS). MATERIALS AND METHODS: TIPS were successfully placed in 11 swine with normal portal pressures. Six animals received 15.2 Gy intraluminal irradiation to the hepatic parenchyma and venous outflow tract at ...
Horiguchi A - - 1999
The prognosis of pancreatic body carcinoma has been poor due to cancerous invasion of major vessels. Resection of the involved vessels may improve resectability and prognosis. We report a patient who had a pancreatic body carcinoma with cavernous transformation of the portal vein, in whom the portal vein was resected ...
Deshmukh N - - 1999
An important role still exists for the creation of surgical portasystemic shunts. Multiple techniques have been described. However, no particular one is satisfactory for all clinical situations. The objective of the present paper is to describe an alternative surgical technique for the creation of a decompressive portasystemic shunt. This technique ...
Burton C A - - 1999
The angiographic anatomy of the portal venous system in 50 dead, neonatal Labrador/Retriever type puppies is described. Angiography was performed by the injection of radioopaque contrast media through a catheter placed within the umbilical vein. In 49 pups the ductus venosus was a straight vessel arising from the left main ...
Kono Y - - 1999
Ultrasonographic arterial portography was evaluated with second harmonic and conventional gray scale imaging after the administration of 0.001 to 0.1 ml/kg of FS069 (Optison) in 10 dogs (four dogs with ligation of the portal vein branch) and two woodchucks with hepatocellular carcinomas. Harmonic imaging was required to obtain good liver ...
Ozbek S S - - 1999
Until recently aneurysms in the portal venous system were considered to be very rare lesions. This opinion has largely been changed by the increasing number of cases reported in recent years. In this paper we report the cases of five patients with portal venous system aneurysms, including one with splenic ...
Yun E J - - 1999
The objective of the present study was to evaluate contrast-enhancement patterns of hepatic hemangioma according to size during hepatic arterial (30-s delay) and portal venous (65-s delay) phases of spiral computed tomography (CT). During a 10-month-period, 73 patients with 118 hemangiomas underwent two-phase spiral CT examination. The enhancement patterns of ...
Chang Y C - - 1999
With increasing evidence on the role of endogenous nitric oxide in the splanchnic hyperdynamics, the existence of esophageal varix induced by hepatopetal flow of portal hypertension in a cirrhotic patient has become more convincing. Herein, we report 2 cases of esophageal varix caused by local hyperdynamic states of the right, ...
Hata F - - 1999
The configurations of hepatic veins, particularly the complementary territorial relationships between the veins, in the right surgical lobes of 156 human livers, the segments of which were identified clearly according to the portal ramification, were studied. In order to assess the functional roles of the vessels, we compared the diameter ...
Gates J - - 1999
Chemoembolization of the liver for unresectable malignancy, although controversial, is being used with increasing frequency. Chemoembolization can be difficult, and there is great potential for causing complications. There are also findings after chemoembolization, particularly on computed tomographic scans, that may appear to indicate complications but are common and of no ...
Sinha R - - 1999
AIM: Non-cirrhotic portal fibrosis is a common cause of portal hypertension in India. Inspite of this there is no published data delineating the imaging findings in patients with this disease. The aim of this study was to evaluate Grayscale and pulsed Doppler findings of the portal venous system in non-cirrhotic ...
Nagano K - - 1999
BACKGROUND: Patent ductus venosus is extremely rare with only 14 cases reported in the world literature. We present a case of patent ductus venosus. METHODS AND RESULTS: A 29-year-old male was admitted with melaena stool caused by gastric haemorrhagic ulcers. Laboratory data disclosed severe anaemia; however, liver function tests were ...
Lin S L - - 1999
Congenital hepatic arterioportal fistula (HAVF) is extremely rare in children. We present a patient with congenital hepaticoportal arteriovenous fistula complicated with gastrointestinal bleeding treated using transcatheter arterial embolization. Our patient was the youngest (2 days old) case ever reported with congenital HAVF and the first one to receive arterial embolization ...
Kanazawa S - - 1999
OBJECTIVE: To evaluate attenuation changes in the periportal regions of the liver during triphasic contrast CT. MATERIALS AND METHODS: The study group consisted of 93 patients, all of whom underwent triphasic contrast-enhanced CT with a helical scanner for survey of liver disease. The three phases included the arterial phase, portal ...
Marwan I K - - 1999
BACKGROUND: Portal vein reconstruction is a crucial factor affecting the outcome of a successful living-related liver transplantation. We describe here our experience with portal vein reconstruction in 314 cases of living-related liver transplantation with use of novel surgical modalities to enable the transplant surgeons to deal with any size mismatch ...
Oni O O - - 1999
The microvascular anatomy of the physis has been demonstrated by perfusing the epiphysis with an aqueous suspension of barium sulfate. Plain radiographs taken immediately after perfusion reveal escape of dye into the metaphysis and into the system veins. Microradiographs reveal a labyrinthine network of channels on either side of the ...
Schulsinger D A - - 1999
Adrenalectomy is indicated for patients with large adrenal lesions or functional tumors. Cryoablation is currently used as a surgical alternative for the treatment of prostate, lung, brain, pharynx, and liver tumors. The purpose of this study was to determine if cryosurgery could be delivered to small areas in the adrenal ...
Gorka T S - - 1999
This case report describes the noninvasive assessment of hepatic and portal vein hemodynamics in a patient with constrictive pericarditis before and after pericardiectomy. Doppler sonography of the hepatic veins demonstrated a typical W-shaped pattern with pronounced late diastolic flow reversal that disappeared after surgery. Preoperatively, we observed severe pulsatility of ...
Heller J - - 1999
BACKGROUND & AIMS: Patients with cirrhosis are characterized by a reduced splanchnic vascular resistance and a hyporeactivity to adrenergic vasoconstrictors. So far, their adrenergic splanchnic vascular responsiveness has not been evaluated in vitro. We compared responses to alpha1- and beta2-adrenoceptor stimulation of hepatic arteries and portal veins of patients with ...
Duncan J R - - 1999
PURPOSE: To determine whether embolization of portal vein branches would stimulate hepatocyte replication in pigs. MATERIALS AND METHODS: The portal vein branches supplying 50%-70% of the liver were embolized in eight pigs by using a combination of coils and polyvinyl alcohol particles. The extent of embolization was assessed at portography ...
Yamagami T - - 1999
OBJECTIVE: We investigated the cause of nontumorous defects of portal perfusion in the hepatic hilum revealed by CT during arterial portography (CTAP). MATERIALS AND METHODS: One hundred sixty patients who simultaneously underwent CTAP and CT during hepatic arteriography of the common hepatic artery formed the basis of our study. The ...
Tomizuka H - - 1999
A 28-year-old man was hospitalized with nausea, vomiting, abdominal pain and low-grade fever. He had a 6-month history of paroxysmal nocturnal haemoglobinuria (PNH), and laboratory data showed anaemia and liver dysfunction. An abdominal ultrasonography showed ascites and portal vein thrombosis. After receiving antithrombotic treatment, the portal vein thrombosis did not ...
Bilodeau M - - 1999
BACKGROUND/AIMS: Total ligation of the left portal vein is thought to induce both hepatocyte apoptosis and necrosis. The pathological impact of partial ligation of a branch of the portal vein has not yet been evaluated. METHODS: We studied the degree of hepatocyte injury following 0, 43, 48, 59, 68, 72, ...
Lewis C P - - 1999
The formation of portosystemic collaterals occurs frequently in portal hypertension; however, the finding of a patent or recanalized umbilical vein has more often been incidental, with only six cases of recanalized umbilical veins or patent paraumbilical veins demonstrated with clinical significance This is only the second documented case of an ...
Jiao L R - - 1999
Fibrolamellar hepatocellular carcinoma (FHCC) is a variant of hepatocellular carcinoma, which mainly affects a young age group and carries a relatively good prognosis. It is widely accepted that aggressive curative resection is still the best option for FHCC. We report here a case of successful arterialisation of the portal vein ...
Couinaud C - - 1999
BACKGROUND/AIMS: In liver anatomy and surgery, is portal and hepatic vein segmentation (French segmentation) to be preferred over arteriobiliary segmentation (Healey and Schroy, North American segmentation)? METHODS: Several embryological arguments and an analysis of anatomical data from a personal collection of 110 vasculobiliary casts were made. RESULTS: Embryological arguments: Portal ...
Li X - - 1999
The hemodynamic changes of portal vein before and after intra-arterial infusion of ethanol iodized oil emulsion (EIOE) were studied in 4 healthy dogs. Segmental transcatheter arterial embolization (TAE) using EIOE was performed in 55 patients with hepatocellular carcinoma (HCC). Twenty patients subsequently underwent surgery. It was concluded that segmental TAE ...
Li Li - - 1998
AIM:To evaluate the therapeutic effects of segmental transcatheter arterial embolization for primary hepatocellular carcinoma, and to recognize the menifestation and clinical value of lipiodol overflow into portal veins surrounding the tumors.METHODS:A total of 50 cases of nonresectable primary hepatocellular carcinoma underwent segmental transcatheter arterial embolization. Two methods of superselective segmental ...
Smith P A - - 1998
PURPOSE: The goal of our study was to determine whether dual-phase spiral CT angiography with 3D volume rendering could be used for preoperative evaluation and patient selection for orthotopic liver transplantation candidates. METHOD: Fifty consecutive potential candidates for liver transplantation were evaluated with dual-phase spiral CT with 3D volume rendering. ...
Chikamori F - - 1998
A 59-year-old man experienced hematemesis 5 years after a total gastrectomy and Roux-en-Y esophagojejunostomy for carcinoma of the cardia. Endoscopic examination revealed the esophagojejunal blue small varices with cherry-red spots. Percutaneous transhepatic portography showed that the varices were supplied by the vein of the ascending jejunal limb. The 3-French microcatheter ...
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