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  • 1
    ISSN: 1432-2323
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract. Serum hyaluronate can be used as an index of hepatic sinusoidal endothelial cell function. This study was designed to evaluate its application as a predictor of liver failure after major hepatectomy. Thirty-six patients who underwent right liver lobectomy after percutaneous transhepatic right branch portal vein embolization were divided into two groups based on their postoperative clinical course (groups 1 and 2, with and without postoperative liver failure, n= 6 and n= 30, respectively). We serially measured serum hyaluronate levels using a sandwich binding protein assay system before and after hepatectomy and determined relations with progression of the underlying chronic liver disorder, portal venous pressure, and liver growth of the left lobe after portal embolization. Serum hyaluronate levels were significantly elevated, in line with the degree of severity of the underlying chronic liver disorder, and correlated well with the portal venous pressure and the hypertrophic ratio of the left lobe subsequent to portal embolization. Serum hyaluronate levels in group 1 were significantly higher than those in group 2 before surgery and increased steeply during the early period after hepatectomy. These results suggest that the serum hyaluronate reflects the hepatic functional reserve, and serial measurement of this parameter after hepatectomy can serve as a simple indicator for early detection of posthepatectomy liver failure.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1432-2323
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Résumé Afin d'améliorer la fonction hépatique après reperfusion post-hépatectomie partielle accompagnée de refroidissement total ou partiel du foie (RF), une nouvelle solution de refroidissement contenant de la L-histadine (KM solution) a été développée. Après excision, des foies provenant de rats Lewis ont été perfusés par une solution de Ringer lactate (groupe A) ou la nouvelle solution KM (groupe B) pendant deux heures à 20°, puis ont été reperfusés avec du sang de rat à 37° sous une pression de 5 cm d'eau contrôlée par des débitmètres porte et tissulaires. A la fin de la reperfusion, la production de bile, la sécrétion de LDH ainsi que le contenu tissulaire en adénine triphosphate ont été mesurés. La récupération du débit porte et périphérique après reperfusion dans le groupe B, a été significativement améliorée par rapport au groupe A. La production de bile, la sécrétion de LDH ainsi que le contenu tissulaire en adénine triphosphate ont augmenté dans le groupe B. Après une perfusion in situ avec du Ringer lactate (groupe C) et KM (groupe D) pendant une heure à 20° suivie d'une hépatectomie partielle du lobe latéral du foie, la suivie à une semaine a été respectivement de 25% et de 100% (p〈0.05). La solution KM convient bien aux résections hépatiques associées au RF.
    Abstract: Resumen Con el objeto de mejorar la calidad de la función hepática luego de reperfusión después de hepatectomía parcial bajo hipotermia total o parcial del hígado, se desarrolló una nueva solución de perfusión que contiene 100 mM de L-histidina (Solución KM). Se extrajeron los hígados de ratas Lewis, los cuales fueron perfundidos por 2 horas a 20°C con Lactato de Ringer (Grupo A) o con solución KM (Grupo B), y reperfundidos con sangre de rata a 37°C y a una presión de perfusión de 5 cm H2O bajo monitoría del flujo portal y de los tejidos periféricos. Se efectuó la medición de la producción de bilis, la secreción de LDH y de trifosfato de adenosina tisular, luego de la reperfusión. La recuperación de los flujos portal y de los tejidos periféricos luego de la reperfusión fue significativamente mejor en los hígados del Grupo B que en los del Grupo A. La viabilidad de los hígados del Grupo B fue evaluda mediante la producción de bilis, el valor de ATP y de liberación de LDH, valores que aparecieron mejor preservados que en los hígados del Grupo A. Se practicó perfusión total in situ con lactato de Ringer (Grupo C) y con solución KM (Grupo D) por una hora a 20°C, seguida de hepatectomía parcial del lóbulo lateral izquierdo. La sobrevida a una semana de los Grupos C y D fue 25% y 100% respectivamente (p〈0.05). La conclusión es que la solución KM es adecuada para hipotermia parcial o total del hígado.
    Notes: Abstract To improve liver quality after reperfusion following partial hepatectomy under total or partial cooling of the liver (HPC), a new perfusion solution containing 100 mM l-histidine (KM solution) was developed. The livers of Lewis rats were removed and perfused for 2 hours at 20°C with lactated Ringer's (LR) solution (group A) or the KM solution (group B). They were reperfused with rat blood at 37°C at a perfusion pressure of 5 cmH2O while monitoring the portal and peripheral tissue blood flows. At the end of reperfusion, bile production, lactate dehydrogenase (LDH) secretion, and tissue adenosine triphosphate (ATP) was measured. Recovery of portal and peripheral tissue blood flows of the group B livers after reperfusion were significantly better than those of group A. Viability of the group B livers, assessed by bile production, tissue ATP value, and LDH release, was preserved better than that of group A livers. In situ total liver perfusion with LR (group C) and KM (group D) solutions for 1 hour at 20°C followed by partial hepatectomy of the left lateral lobe was performed. The 1-week survivals of the group C and D rats were 25% and 100%, respectively (p〈0.05). It was concluded that KM solution is suitable for HPC.
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1436-2813
    Keywords: portahepatic venous fistula ; hepatic resection
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract We report herein the case of a 20-year-old woman in whom an enormous aneurysmal portahepatic venous fistula was found. The portal aneurysm developed in the anterior inferior segment of the right hepatic lobe, and communicated with the right portal vein and the right hepatic vein. Due to the enormous size of the shunt, and because the patient's venous blood ammonia level increased by about twofold after eating, a right lobectomy of the liver was performed. A review of the available literature and a discussion of the most appropriate treatment follows the presentation of this case.
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 1436-2813
    Keywords: interleukin-6 ; digestive surgical trauma ; portal blood ; liver function tests ; C-reactive protein
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract To determine whether cytokines produced in the operative field during digestive surgery selectively spill over into the portal blood, the changes in interleukin-6 (IL-6) levels in portal and peripheral venous blood were assayed at several points in time from the commencement of surgery until 14 days later, in 11 patients. Similar changes in the IL-6 levels were observed in the portal and peripheral blood samples; however, the IL-6 levels in the portal blood reached a maximum 6–12 h after the commencement of surgery, being earlier than in the peripheral venous blood. In fact, between 3 and 12 h after the commencement of surgery, the IL-6 levels were higher in the portal blood by 33–81 pg/ml. By 24 h or more after the commencement of surgery, the IL-6 levels did not differ significantly in the two types of blood samples. Moreover, the C-reactive protein levels 2 days after surgery were even more closely correlated to the maximum IL-6 levels in the portal blood than to those in the peripheral venous blood. These results suggest that IL-6 produced during intraabdominal digestive surgery initially enters the portal blood, being trapped by IL-6 receptors in the liver, where it may regulate the synthesis of acute-phase proteins as a hepatocyte-stimulating factor.
    Type of Medium: Electronic Resource
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  • 5
    ISSN: 1436-2813
    Keywords: Key Words: Castleman disease ; retroperitoneum
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 6
    ISSN: 1436-2813
    Keywords: Castleman disease ; retroperitoneum
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract We describe herein the case of a 21-year-old woman in whom Castleman disease of the pararenal retroperitoneum was successfully resected. The patient was referred to our hospital from another hospital for investigation of a retroperitoneal mass in the right middle abdomen. Ultrasonography, computed tomography, and magnetic resonance imaging demonstrated a large retroperitoneal mass with heterogeneous imaging characteristics. An aortogram showed arterial feeding to this mass from a few lumbar arteries. Although a definitive preoperative diagnosis could not be made, surgical excision was performed and histopathological examination confirmed a diagnosis of the hyaline type of Castleman disease. The patient had an uneventful postoperative course and was discharged 14 days after her operation. She now leads an active social life without any signs of sequelae or recurrence 14 months later. To the best of our knowledge, only 2% (6/315) of all reported cases of Castleman disease have been located in the pararenal and retroperitoneal area.
    Type of Medium: Electronic Resource
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  • 7
    ISSN: 1436-2813
    Keywords: Key Words: hepatocellular carcinoma ; hepatic vein reconstruction ; total vascular exclusion ; extracorporeal bypass ; hypothermic hepatic perfusion
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 8
    ISSN: 1436-2813
    Keywords: portal vein embolization (PVE) ; hepatocellular carcinoma (HCC) ; hepatic functional capacity
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract With the aim of minimizing postoperative liver dysfunction and promoting increased resectability, we employed portal vein embolization (PVE). In this study, the effect of PVE on major hepatic resection for advanced-stage hepatocellular carcinoma (HCC) in injured livers was evaluated. PVE was performed prior to hepatectomy in 13 patients with stage III and IV HCCs. Following PVE, right trisegmentectomy was performed in 3 patients, extended right lobectomy in 3 and right lobectomy in 7. To evaluate the effect of PVE, the changes in liver functional capacity and estimated remnant liver volume (ERLV), determined by computed tomography, were examined before and after PVE. The operative morbility, mortality, and survival rates after hepatectomy were also assessed. By 2 weeks after PVE, ERLV had increased in all patients, by an average of 28%, and the mean resection rates had decreased from 70.0% to 62.2%. Postoperatively, the 30-day mortality rate was 15.3%, and the 1- and 2-year survival rates were 69% and 46%, respectively. The results of this study indicate that resectability can be increased, and major hepatectomy can be made safer by employing PVE preoperatively, in view of the fact that major hepatectomy was not considered feasible without PVE in these patients.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Springer
    Journal of hepato-biliary-pancreatic surgery 3 (1996), S. 186-191 
    ISSN: 1436-0691
    Keywords: limphoepithelial cyst of the pancreas ; pancreas ; CA19-9
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract A lymphoepithelial cyst is reported. A 68-year-old man consulted a surgeon, presenting with a sense of abdominal fullness. Ultrasonography and computed tomography revealed a large tumor, 10 cm in diameter, behind the head of the pancreas. Celiac arteriography at our hospital showed feeding arteries from the dorsal pancreatic artery and the pancreatic arcades. CA19-9 was elevated to 178 U/ml. Laparotomy was performed. The tumor was well demarcated from the surrounding tissue by a fibrous capsule and there was no continuity to the pancreatic parenchyma. Simple tumorectomy and distal gastrectomy for peptic gastric ulcer disease were performed. The cut surface revealed a multicystic lesion containing atheromatous substances. Histopathologically, the internal surface of the cyst was lined with stratified squamous epithelium containing mucin-producing cells; many germinal centers were observed in the cyst wall.
    Type of Medium: Electronic Resource
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  • 10
    ISSN: 1436-0691
    Keywords: resection of head of the pancreas ; arterial occlusive disease ; anomalous arrangement of arteries
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract We resected the head of the pancreas in three patients with occlusive diseases or anomalous arrangement of the abdominal visceral arteries. The first patient who was diagnosed with cancer of the head of the pancreas; pancreatoduodenectomy (PD) was performed. Preoperative celiac angiography showed no significant occlusion of the celiac axis, while superior mesenteric arteriography visualized the common hepatic artery, with delayed retrograde filling. At the completion of the PD, an unsuspected atherosclerotic celiac occlusion was identified. Celiac reconstruction was performed. The second patient was diagnosed with cystadenoma of the head of the pancreas and had congenital ostial occlusion of the superior mesenteric artery (SMA), with dilated pancreaticoduodenal (PD) arcades as a celiacomesenteric collateral pathway. Duodenum-preserving resection of the head of the pancreas was performed, with preservation of the PD arcades. The third patient was diagnosed with cancer of the common bile duct, and exhibited a replaced common hepatic artery that arose from the SMA and formed PD arcades. PD was performed, with revascularization of the common hepatic artery. Following surgery, the three patients have done well for 18, 27, and 9 months, respectively. Careful preoperative investigation to identify abnormalities of the visceral arteries is necessary before resection of the head of the pancreas is performed.
    Type of Medium: Electronic Resource
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