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  • 1
    Digitale Medien
    Digitale Medien
    Springer
    Journal of hepato-biliary-pancreatic surgery 1 (1994), S. 252-256 
    ISSN: 1436-0691
    Schlagwort(e): pancreatic carcinoma ; radiotherapy ; intraoperative radiotherapy ; resection ; non-resection
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract Eighty patients with pancreatic carcinoma were treated by intraoperative radiotherapy (IORT) with or without surgical resection of the tumor, and the results were compared with those of 111 patients treated by surgery alone. For resectable patients, the radiation dose was 30 Gy and the average field sizes were 8 or 10 cm; for unresectable patients, these values were 20–30 Gy and 6 or 8 cm, respectively. No side effects of IORT were observed. In 49 resectable stage III patients, the IORT group (n=16) had a higher survival rate than the non-IORT group (n=33); i.e., 1-year survival rates of 44.6% vs 23% and 2-year survival rates of 37.2% vs 7.7% after surgery (P〈0.05). However, there was no significant difference in survival rate between the IORT group (n=28) and the non-IORT group (n=29) in 57 resectable patients in stage IV. In unresectable patients, the IORT group (n=31) (P〈0.05) had a higher survival rate than the non-IORT group (n=38) (P〈0.05). The palliative effect of IORT on abdominal or back pain was evaluated in 15 patients who had such symptoms and did not undergo tumor resection. Overall, pain decreased or disappeared in 13 of these patients (87%).
    Materialart: Digitale Medien
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  • 2
    ISSN: 1436-2813
    Schlagwort(e): peritonitis ; active oxygen ; lentinan ; cytokine
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract To elucidate the mechanism of enhancing survival in peritonitis rats treated with lentinan, a fully purified beta-1,3-glucan, we measured the active oxygen-producing ability of polymorphonuclear leukocytes (PMNs). Four groups of rats (group I, fecal peritonitis control; II, rats receiving 3 mg/kg lentinan intraperitoneally at the same time as peritonitis induction; III, rats receiving 1 mg/kg gentamicin intramuscularly; and IV, rats receiving combined lentinan-gentamicin treatment) were used. The survival period was significantly longer in group IV than in the other three groups. The ability of ascitic PMNs to produce active oxygen (superoxide, H2O2, myeloperoxidase) was significantly more than that of blood PMNs in each group at 20 h after peritonitis induction. The increase in active oxygen production in ascitic PMNs was higher in group IV compared with that in the other three groups. The concentration of lentinan in the blood was high at 24 h after administering lentinan intraperitoneally to both the normal and peritonitis rats. In the in vitro study, the superoxide production in normal rat blood PMNs was significantly higher in the presence of cytokines (IL-1 beta, IL-6, TNF-alpha) without dose-dependence but was not higher for the lentinan group than in the control. This study therefore suggests that lentinan activated the peritoneal macrophage secretory activity and produced cytokines which thus enhanced the ability of PMNs to produce active oxygen, which possesses a bactericidal ability in PMNs.
    Materialart: Digitale Medien
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  • 3
    ISSN: 1436-2813
    Schlagwort(e): hemangiopericytomatous meningioma ; metastatic liver tumor
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract A 54-year-old male was admitted to our hospital for treatment of a liver tumor which was pointed out by screening ultrasonography. Computed tomography revealed a tumor in the right lobe of the liver measuring 7 cm in diameter. Angiography revealed a hypervascular tumor. A hepatocellular carcinoma or hypervascular metastatic tumor was suspected. A right hepatic lobectomy was performed. The patient had previously undergone operations for a hemangiopericytomatous meningioma in the occipital fossa in 1972 and 1977. The histological findings of the liver tumor were identical to those for hemangiopericytomatous meningioma, so the etiology was considered to be liver metastasis from the previous meningioma. Nineteen cases of extracranial metastasis of hemangiopericytomatous meningioma have been reported in the literature, but hepatic resections of this metastasizing tumor have been very rare.
    Materialart: Digitale Medien
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  • 4
    ISSN: 1436-2813
    Schlagwort(e): hepatofugal portal blood flow ; hepatectomy ; cirrhosis
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract We report herein the case of a 60-year-old man who developed hepatic failure with simultaneous transient hepatofugal portal blood flow after undergoing hepatectomy for hepatocellular carcinoma accompanied by cirrhosis with a splenorenal shunt. The transient hepatofugal portal blood flow was detected by color Doppler ultrasonography. Following this case report, the possibility of a relationship between hepatofugal portal blood flow, portal-systemic shunts, and postoperative hepatic failure is discussed.
    Materialart: Digitale Medien
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  • 5
    ISSN: 1435-5922
    Schlagwort(e): Key words: portal hypertension, systemic lupus erythematosus, anticardiolipin antibody
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract: A case of idiopathic portal hypertension (IPH) associated with systemic lupus erythematosus (SLE) is reported in a 38-year-old man who had been diagnosed with SLE and treated for 18 years. Esophageal varices, found in 1994 on endoscopic examination, had been followed up for 2 years. On July 16, 1996, he was admitted to Nagoya University Hospital because there was a high risk of bleeding from the esophageal varices due to severe thrombocytopenia. As partial splenic embolization had temporarily controlled the thrombocytopenia, splenectomy and devascularization of the stomach vessels were performed after endoscopic ligation of the esophageal varices. Histological specimens of wedge biopsied liver showed chronic inactive hepatitis without cirrhosis. The presence of anticardiolipin antibody, indicated by positivity for lupus anticoagulant, was suggestive of the presence of a common immunological mechanism in the etiology of SLE and IPH.
    Materialart: Digitale Medien
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  • 6
    ISSN: 1432-2323
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Beschreibung / Inhaltsverzeichnis: Résumé Le parenchyme hépatique sain des patients ayant un carcinome hépatocellulaire (HCH) présente une vaste gamme de modifications histologiques ayant dans certains cas une signification pronostique. Dans cette étude, nous avons regroupé les patients selon le degré d'insuffisance hépatique, puis nous les avons classés selon leur évolution après résection. Cent quatre-vingt quatre patients ont été divisés en deux groupes de patients selon les résultats de leur clairance plasmatique du vert indocyanine (ICG-K): ceux dont la valeur était inférieure à 0.13 ml/min. (groupe A: n=97) et ceux dont la valeur était supérieure à 0.13 ml/min. (groupe B; n=97). Quatre-vingt neuf patients ayant un stade I ou stade II de CHC ont également été divisés en deux groupes: ceux dont la valeur était inférieure à 0.13 ml/min. (groupe C: n=52) et ceux dont la valeur était supérieure à 0.13 ml/min. (groupe D; n=37). Les patients dans le groupe B avaient une meilleure survie que ceux du groupe A quatre ans après l'hépatectomie, ceux du groupe D avaient une survie significativement plus longue que ceux du groupe C (p〈0.01). Il n'y a eu aucune différence significative dans le taux de survie sans récidive entre les patients des groupes A et B d'une part et entre les groupes C et D d'autre part. Les patients ayant un CHC et une fonction hépatique limite ont souvent des lésions récidivantes multiples et par conséquent un choix thérapeutique restreint alors que les patients ayant une fonction hépatique satisfaisante ont eu une traitement plus agressif. En conclusion, le degré d'insuffisance hépatique est un facteur qui détermine le pronostic à long terme après hépatectomie pour CHC, surtout dans les stades du début de la maladie.
    Kurzfassung: Resumen Los pacientes con carcinoma hepatocelular (HCC) exhiben una amplia variedad de alteraciones histológicas en el parenquima hepático no canceroso, cambios que pueden afectar el pronóstico. En el presente estudio agrupamos los pacientes de acuerdo con el grado de alteración hepática e investigamos su pronóstico a largo plazo luego de hepatectomía por HCC. Cientonoventa y cuatro pacientes fueron divididos en dos grupos según los valores de depuración del verde indocianina; aquellos con valores menores de 0.13 min-1 (Grupo A, n=97) y aquellos con valores de 0.13 min-1 o superiores (Grupo B, n=97). Ochenta y nueve pacientes con HCC estados I o II fueron también divididos en dos grupos: aquellos con valores inferiores a 0.13 min-1 (Grupo C, n=52) y aquellos con valores de 0.13 min-1 o superiores (Grupo D, n=37). Los pacientes del Grupo B exhibieron una tendencia a una mayor supervivencia que los del Grupo A en 4 años de seguimiento luego de la hepatectomía, y los del Grupo D tuvieron una sobrevida significativamente más prolongada que los del Grupo C (p〈0.01). No se halló diferencia significativa en las tasas de sobrevida libre de enfermedad entre los de los grupos A y B o los de los Grupos C y D. Puesto que los pacientes con pobre función hepática frecuentemente presentaban múltiples lesiones recurrentes y limitadas opciones terapéuticas, los pacientes con buena función hepática recibieron tratamiento más intensivo. En conclusión, el grado de alteración hepática es uno de los factores que determinan el pronóstico a largo plazo luego de hepatectomía para HCC, especialmente en la etapa temprana de la enfermedad.
    Notizen: Abstract Patients with hepatocellular carcinoma (HCC) show a wide variety of histologic changes in the noncancerous liver parenchyma, and these changes may affect the prognosis. In this study, we grouped patients according to the extent of liver impairment and investigated their long-term prognosis after hepatectomy for HCC. A total of 194 patients were divided into two groups according to their plasma clearance rate of indocyanine green (ICG-K) values: those with values 〈0.13 min-1 (group A, n=97) and those with values of ≥0.13 min-1 (group B, n=97). Eighty-nine patients with stage I or II HCC were also divided into two groups: those with values 〈0.13 min-1 (group C, n=52) and those with values of ≥0.13 min-1 (group D, n=37). Group B patients tended to survive longer than group A patients during 4 years after hepatectomy, and group D patients survived significantly longer than group C patients (p〈0.01). There was no significant difference in the recurrence-free survival rates between those in groups A and B or groups C and D. Because patients with poor liver function frequently had multiple recurrent lesions and limited therapeutic options, patients with good liver function received more intensive treatment. In conclusion, the extent of liver impairment is one of the factors determining long-term prognosis after hepatectomy for HCC, especially during the early stage of the disease.
    Materialart: Digitale Medien
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  • 7
    ISSN: 1432-2323
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract. When multiple hepatic tumors are present, it is sometimes difficult to distinguish between metastatic and multicentric hepatocellular carcinoma (HCC). To identify the important clinicopathologic features of multicentric HCC, we evaluated the clinical characteristics of patients with multicentric HCC and examined the usefulness of surgical treatment in those patients. A total of 99 patients with multiple HCCs were classified into one of the following two groups according to whether their tumors were multicentric or metastatic: Group MO consisted of 18 patients with tumors thought to have developed synchronously from multicentric origins. Group IM consisted of 64 patients with intrahepatic metastases. In this study 18% of the patients with multiple HCCs were thought to have presented with multicentric tumors. This study revealed that synchronous multicentric HCCs often affected multiple segments of the liver and responded relatively well to partial hepatectomy of individual tumor-affected areas. To appropriately treat potentially multicentric HCC, it is important to understand the histopathologic characteristics of multicentric HCC and diagnose during preoperative and intraoperative ultrasonography, so surgical treatment may be useful.
    Materialart: Digitale Medien
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  • 8
    ISSN: 1432-2323
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Beschreibung / Inhaltsverzeichnis: Résumé Cent dix huit résections hépatiques pour carcinome hépatocellulaire ont été réalisées entre 1979 et 1987. Quatre vingt dix huit de ces patients étaient cirrhotiques et 18 d'entre eux ont eu une lobectomie, 28 une segmentectomie et 52 une sous-segmentectomie. Chez les 21 patients non cirrhotiques, il y a eu 11 lobectomies, 5 segmentectomies et 5 sous-segmentectomies. La mortalité des patients cirrhotiques et non cirrhotiques était respectivement de 11% et de 5%. Il n'y avait pas de différence significative entre les tests hépatiques des patients survivants et de ceux qui mourraient; cependant, une lobectomie limitée à moins de 55% du parenchyme hépatique était mieux supportée par le patient cirrhotique. La survie à un, trois, cinq ans des patients cirrhotiques était respectivement de 57.9, 36.8 et 20.0% après lobectomie, de 82.8, 82.8 et 57.6% après segmentectomie et de 72.0, 46.2 et 24.0% après sous-segmentectomie. La récidive tumorale était moins fréquente après segmentectomie qu'après sous-segmentectomie. Des lésions multiples, des lésions de plus de 5 cm de diamètre et des signes d'envahissement vasculaire étaient des signes de mauvais pronostic, associés à une récidive. Sur les 51 récidives tumorales au sein du parenchyme restant, 13 ont pu être l'objet de résection alors que 23 ont été traitées par chimio-embolisation intra-artérielle. La survive des patients ayant eu des résections itératives était meilleure que celle des autres patients et ce de façon significative.
    Kurzfassung: Resumen Se practicaron 118 resecciones hepáticas por carcinoma hepatocellular entre 1979 y 1987. En 98 casos se encontró cirrosis hepática coexistente: 18 pacientes fueron sometidos a lobectomía, 28 a segmentectomía y 52 a subsegmentectomía. En cuanto a los 21 pacientes no cirróticos, 11 fueron sometidos a lobectomía, 5 a segmentectomía y 5 a subsegmentectomía. La tasa de mortalidad operatoria de los pacientes cirróticos fue 11% y la de los no cirróticos 5%. No se observó differencia significativa en las pruebas de función hepática entre los sobrevivientes y los no sobrevivientes, pero la lobectomía de menos del 55% del parenquima hepático resultó ser bien tolerada por los pacientes con cirrosis. Las tasas de sobrevida a uno, tres y cinco años de los cirróticos fueron de 57.9%, 36.8% y 20.0% después de lobectomía, 82.8%, 82.8% y 57.6% después de segmentectomía y 72.0%, 46.2% y 24.0% después de subsegmentectomía. La tasa de recurrencia tumoral resultó ser menor después de segmentectomía que de subsegmentectomía. La presencia de lesiones múltiples grandes, de tumores mayores de 5 cm y la invasión vascular macroscópica demostraron ser signos de mal pronóstico en términos de las tasas de sobrevida así como de las tasas de recurrencia. De las 51 recurrencias tumorales limitadas al hígado residual, 13 fueron resecadas y 23 fueron tratadas mediante quimioembolización transarterial (catéter). Las tasas de sobrevida de los pacientes sometidos a re-resección fueron significativamente mejores que las de los otros grupos.
    Notizen: Abstract One hundred and eighteen patients underwent hepatic resection for hepatocellular carcinoma from 1979 to 1987. Ninety-eight of these patients had co-existing cirrhosis of the liver; 18 patients underwent lobectomy, 28 patients had segmentectomy, and 52 patients had subsegmentectomy. In the 21 non-cirrhotic patients, 11 patients underwent lobectomy, 5 patients had segmentectomy, and 5 patients had subsegmentectomy. The operative mortality rate of patients with cirrhosis was 11% and of patients without cirrhosis was 5%. There was no significant difference in hepatic function tests between survivors and nonsurvivors. Lobectomy of 〈55% of the parenchymal hepatic resection rate was well tolerated in the patients with cirrhosis. One-year, 3-year, and 5-year survival rates of patients with hepatocellular carcinoma and co-existing cirrhosis were 57.9%, 36.8% and 20.0% following lobectomy, 82.8%, 82.8% and 57.6% following segmentectomy, and 72.0%, 46.2% and 24.0% following subsegmentectomy. The tumor recurrence rate appeared to be lower after segmentectomy than subsegmentectomy. Multiple gross lesions, tumors 〉5 cm, and presence of gross vascular invasion were poor prognostic signs in terms of survival rates as well as recurrence rates. Of the 51 patients with tumor recurrence limited to the residual liver, 13 patients underwent repeat resection, and 23 patients were treated by transcatheter arterial chemoembolization. The survival rates of the patients undergoing repeat resection were significantly better than those of other groups.
    Materialart: Digitale Medien
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  • 9
    ISSN: 1436-2813
    Schlagwort(e): non-cirrhotic portal hypertension ; systemic hemodynamics ; esophageal varices ; cardiac index ; plasma volume
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract The features of systemic hemodynamics were analyzed in 19 non-cirrhotic patients with prominent esophageal varices. The patients were divided into two groups; Group I comprised 8 patients with an occluded extra-hepatic portal vein and Group II comprised 11 patients with a patent extra-hepatic portal vein whose histopathological diagnosis was idiopathic portal hypertension or hepatic fibrosis. An increase in the cardiac index and a decrease in the total peripheral resistance were significant in both groups when compared with 12 control patients (p〈0.01). There was a significant correlation between the cardiac index and plasma volume in the 14 non-cirrhotic patients with portal hypertension (r=0.537, p〈0.05), but no significant relationships were identified between the cardiac index and liver functional values. These results reveal that the systemic hemodynamics in non-cirrhotic portal hypertension are significantly hyperdynamic, as in cirrhotic portal hypertension. They also suggest that the expanded plasma volume secondary to the enlargement of the portal bed might be closely related to the mechanism of hyperdynamic systemic circulation in non-cirrhotic portal hypertension.
    Materialart: Digitale Medien
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  • 10
    ISSN: 1432-0843
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Summary To improve the outcome of patients who had undergone hepatic resection for hepatocellular carcinoma (HCC), we employed postoperative adjuvant hepatic arterial infusion chemotherapy (AHAI) in 23 patients. Patients showing various risk factors for the recurrence of HCC were given one shot of doxorubicin and mitomycin C suspended in an oily medium (lipiodol) and an infusion of 5-fluorouracil. The 3-year survival value calculated for patients who were treated with AHAI was 75%, which was significantly higher than that found for patients who did not receive AHAI (n=156;P〈0.05). In addition, among the patients who underwent hepatic lobectomy, the survival of those who received AHAI was also significantly greater than that of those who did not (n=46;P〈0.01). AHAI did not cause any severe complications. These results indicate that AHAI may be an effective therapy for patients with HCC.
    Materialart: Digitale Medien
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