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  • 1
    ISSN: 1436-2813
    Keywords: liver blood flow ; hepatectomy ; concious dog
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Hepatic circulation after hepatectomy was investigated in conscious dogs under fasting and feeding conditions. After a 40% hepatectomy, both the hepatic arterial and portal blood flow were measured simultaneously using ultrasonic transit time flowmeters. During fasting, the total hepatic blood flow (i.e., the sum of arterial and portal blood flow) changed in a biphasic pattern after hepatectomy. The first peak (517.9±42.7 ml/min; 130.1% of preoperative flow) was seen on the 1st postoperative day (POD) and the second peak (444.8±25.6 ml/min; 112.7% of preoperative flow) occurred on the 7th POD. The portal flow demonstrated the same biphasic changes as the total hepatic flow, although the hepatic arterial flow showed only the first peak. A heart rate analysis suggested that the first peak was probably due to hyperdynamic circulatory conditions, as has been previously reported. In addition, the existence of the second peak was established by the present study. The postprandial hepatic blood flow decreased during the first 2 weeks postoperatively, but exceeded the presurgical levels on PODs 21 and 28.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1436-2813
    Keywords: multiple myeloma ; metastatic breast cancer ; lytic bone lesions
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract A 72-year-old woman with a history of early breast cancer suffered a fracture of the eighth thoracic vertebra resulting in paraplegia. Magnetic resonance imaging (MRI) showed spinal cord compression by a tumor between the ninth and tenth thoracic vertebrae. Local radiotherapy was begun under the diagnosis of metastatic breast cancer, but bone marrow aspiration and biopsy subsequently revealed plasma-cell proliferation rather than adenocarcinoma. This case report serves to demonstrate that clinicians should consider multiple myeloma as a cause of lytic bone lesions without extraskeletal metastases even in patients with a history of breast cancer.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Journal of hepato-biliary-pancreatic surgery 2 (1995), S. 239-248 
    ISSN: 1436-0691
    Keywords: cholangiocarcinoma ; bile duct cancer ; hepatic hilus ; caudate lobe ; surgical anatomy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract We have studied the surgical anatomy of the intrahepatic bile duct, hepatic hilus, and caudate lobe based on intraoperative findings and selective cholangiography of surgical patients and resected specimens, and have established the cholangiographic anatomy of the intrahepatic subsegmental bile duct. Thorough knowledge of the three-dimensional anatomy of the subsegmental bile duct, hepatic hilus, and caudate lobe is indispensable for curative surgery of hilar cholangiocarcinoma. We designed and actually performed 15 kinds of hepatic segmentectomies with caudate lobectomy and extrahepatic bile buct resection in 100 consecutive patients, with curative resection being possible in 82 patients. Postoperative survival after curative resection of hilar cholangiocarcinoma was better than expected, and the 5-year survival rates for all 82 patients with curative resection and for 55 patients with curative surgery without portal vein resection were 31% and 43%, respectively. Hepatic segmentectomy with caudate lobectomy and extrahepatic bile duct resection should be designed not only in accordance with the preoperative diagnosis of tumor extension into the intrahepatic bile ducts but also so that curative surgery for advanced hilar cholangiocarcinoma can be performed.
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 1436-2813
    Keywords: Key Words: multiple myeloma ; metastatic breast cancer ; lytic bone lesions
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Surgery today 27 (1997), S. 833-839 
    ISSN: 1436-2813
    Keywords: ischemia ; liver regeneration ; hepatectomy ; polyamine ; lipid peroxidation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract A total of 175 rats were divided into: (1) a sham operation group, in which the liver was slightly mobilized after laparotomy; (2) a control group in which 68% of the liver was resected without the blockade of blood flow; (3) an ischemia + hepatectomy group, in which the vessels entering the right and caudate lobes were clamped for 30 min, and the nonischemic lobes were resected; (4) a DFMO + ischemia + hepatectomy group, in which the same procedure as for the ischemia + hepatectomy group was performed, but the animals received α-difluoromethylornithine (DFMO); (5) a DFMO + Put + ischemia + hepatectomy group, in which the animals underwent the same procedure, but were given putrescine (Put) in addition to DFMO. There were 6 to 7 rats in each of the five groups. The putrescine level and ornithine decarboxylase (ODC) activity were significantly higher in the ischemia + hepatectomy group than in the control group, but were markedly decreased in the DFMO + ischemia + hepatectomy group. However, the lipid peroxide level was significantly higher in the DFMO + ischemia + hepatectomy group than in the ischemia + hepatectomy group. The incorporation of [3H]thymidine in the DFMO + ischemia + hepatectomy group was significantly lower than that in the control group. The increase in the lipid peroxide level and the decrease in [3H]thymidine found in the DFMO + ischemia + hepatectomy group tended to be reversed by the administration of putrescine. These results suggest that putrescine suppressed the production of lipid peroxides and promoted DNA synthesis in regenerating the liver after ischemia-reperfusion injury.
    Type of Medium: Electronic Resource
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  • 6
    ISSN: 1436-0691
    Keywords: carcinoma ; hepatic hilus ; superficial spread
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract A case of superficially-spreading carcinoma of the hepatic hilus is presented. Percutaneous transhepatic biliary drainage was performed to alleviate jaundice and to evaluate the biliary system. A nodular tumor originating in the upper part of the common hepatic duct was found to be invading the confluence of the right and left hepatic ducts. Extensive superficial spread was observed in the proximal portion of the right anterior superior, right anterior inferior, right posterior superior, right posterior inferior, and caudate bile duct branches. Preoperative surgical planning was carried out on the basis of an evaluation of the findings of ultrasonography, computed tomography, percutaneous transhepatic cholangiography, and percutaneous transhepatic cholangioscopy. Absolute curative surgery, which included right hepatic lobectomy with total caudate lobectomy and bile duct resection, was performed. Bilioenteric continuity was reestablished with a Roux-en-Y jejunal loop. The histological diagnosis was well-differentiated tubular adenocarcinoma of the common hepatic duct. Postoperative recovery was very good; the patient has now enjoyed a good active social life for the past 4 years and 10 months, with no signs of recurrence. In this case report, we discuss the precise preoperative diagnosis and rational surgical treatment for carcinoma of the hepatic hilus with superficial spread.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    Journal of hepato-biliary-pancreatic surgery 5 (1998), S. 52-61 
    ISSN: 1436-0691
    Keywords: Key words: aggressive surgery ; hepatectomy ; hilar cholangiocarcinoma bile duct cancer ; hepatobiliary surgery
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract: Recent progress in surgical techniques for and the perioperative management of hilar cholangiocarcinoma has led to improved outcomes for aggressive liver and bile duct resections, which, however, still show considerable morbidity and mortality. In this article, the results of pioneers' attempts in hepatobiliary surgery for difficult hilar cholangiocarcinomas are reviewed. It is recommended that curative hepatobiliary resection should be performed for hilar cholangiocarcinoma, with careful preoperative management of patients complicated with several difficult conditions.
    Type of Medium: Electronic Resource
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