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排序方式: 共有190条查询结果,搜索用时 31 毫秒
1.
Kitayama D Yoshidome H Mitsuhashi N Ito H Kimura F Shimizu H Ohtsuka M Miyazaki M 《Hepato-gastroenterology》2004,51(59):1326-1329
We describe a 66-year-old man having hepatocellular carcinoma with tumor thrombus extending into the inferior vena cava and synchronous pulmonary metastasis. He was referred to Chiba University Hospital on May, 2000, complaining of emaciation. Radiological findings showed a huge hepatocellular carcinoma in the entire right lobe and tumor thrombus extended into the intrapericardial inferior vena cava. He also had a solitary pulmonary metastasis in the left pulmonary lobe (stage IVB). Right hemihepatomy was performed under total hepatic vascular exclusion without cardiopulmonary bypass, and tumor thrombus was completely removed. Thoracoscopic wedge resection of pulmonary metastasis was also performed. The patient had an uneventful postoperative course. Histopathological examination revealed that the tumor was moderately differentiated hepatocellular carcinoma The patient is still alive after 26 months with pulmonary recurrence, but without hepatic recurrence. To our knowledge, there has been no reported case of resection for both hepatocellular carcinoma invading the inferior vena cava and synchronous pulmonary metastasis. In conclusion, aggressive surgical resection for advanced hepatocellular carcinoma concomitant with pulmonary resection may bring about better prognosis in highly selected patients. 相似文献
2.
Pancreaticoduodenetomy combined with hepatic artery resection following preoperative hepatic arterial embolization
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3.
Shimizu H Kimura F Yoshidome H Ohtsuka M Kato A Yoshitomi H Nozawa S Furukawa K Mitsuhashi N Takeuchi D Takayashiki T Suda K Miyazaki M 《Hepato-gastroenterology》2012,59(116):1023-1025
Interventional procedure via percutaneous transhepatic route is often performed, as an initial treatment, in patients with benign bilioenteric anastomotic stricture. However, surgical management is required in most cases in which radiological intervention is unsuccessful. In this report, we describe a case of a 67-year-old woman with recurrent bilioenteric anastomotic stricture, accompanying bilateral hepatolitiasis after several times of transhepatic interventions. The patient underwent intrahepatic cholangiojejunostomy (Longmire procedure) and cholangioscopic lithotomy after resection of an atrophic left lateral segment resulting from hepatolithiasis. Although the damaged hilar bile duct had to be isolated and divided from the corresponding vasculature for re-anastomosis, it was quite impossible due to severe inflammatory change at the hepatic hilus. We, therefore, anastomosed the intact biliary stump on the cut surface of the left lateral segment to the jejunal loop with a stent tube. The patient's postoperative course was uneventful and she exhibited no evidence of cholangitis during follow-up period of 1 year after surgery. At present, the indications for intrahepatic cholangiojejunostomy for biliary obstruction, are quite limited, but biliary surgeons should keep this procedure in mind at the time of biliary reconstruction for benign proximal bile duct stricture, particularly in cases of multiply operated hilum. 相似文献
4.
Takuya Yoichi Tsukasa Takayashiki Hiroaki Shimizu Hiroyuki Yoshidome Masayuki Ohtsuka Atsushi Kato Hideyuki Yoshitomi Katsunori Furukawa Satoshi Kuboki Daiki Okamura Daisuke Suzuki Masayuki Nakajima Masaru Miyazaki 《Transplant international》2014,27(1):106-113
Splenectomy is an effective technique in living donor liver transplantation (LDLT) with small‐for‐size (SFS) liver grafts for overcoming SFS liver graft injury. However, the protective mechanism of splenectomy is still unclear. The aim of this study was to investigate how splenectomy could attenuate SFS graft injury through the measurement of biochemical factors, particularly the expression of endothelin (ET)‐1, which is a key molecule of microcirculatory disorders by mediating sinusoidal vasoconstriction. We performed rat orthotopic liver transplantation using SFS liver grafts with or without splenectomy. We investigated intragraft expression of ET‐1 mRNA and hepatic protein levels of ET‐1. In addition, portal pressure, hepatic injury and morphological changes, and survival rate were evaluated. In result, intragraft ET‐1 mRNA expression after SFS liver transplantation was significantly downregulated by splenectomy, and hepatic expression of ET‐1 in SFS grafts was rarely observed. Splenectomy inhibited the increase in portal pressure, ameliorated SFS liver graft injury and improved the graft survival rate after SFS liver transplantation. In conclusion, splenectomy improved the SFS liver injury and decreased the expression of ET‐1 by attenuating portal hypertension on SFS liver transplantation. Downregulation of intragraft ET‐1 expression plays important roles in the protective mechanism of splenectomy in SFS liver transplantation. 相似文献
5.
Morita Y Yoshidome H Kimura F Shimizu H Ohtsuka M Takeuchi D Mitsuhashi N Iida A Miyazaki M 《The Journal of surgical research》2008,146(2):262-270
BACKGROUND/AIMS: Obstructive jaundice (OJ) is associated with increased surgical morbidity and infectious complication. The aim of the current study was to clarify the mechanism of excessive inflammation and susceptibility to infection in OJ. METHODS: C57/BL6 mice were subjected to bile duct ligation (BDL) or sham surgery. Expression tumor necrosis factor-alpha, macrophage inflammatory protein-2, monocyte chemoattractant protein-1, inducible protein-10, and interleukin (IL)-10, activation of nuclear factor kappa B, fluorescence activated cell sorter analysis, serum alanine aminotransferase levels, and histology were examined. Survival after lipopolysaccharide (LPS) administration or cecal ligation and puncture 3 or 14 d after surgery was determined. IL-1beta and interferon-gamma expression was examined after LPS administration. RESULTS: OJ induced nuclear factor kappa B activation and increased expression of macrophage inflammatory protein-2, which caused significant increases in neutrophil recruitment. Serum alanine aminotransferase levels increased consistent with histological observations in OJ. Mononuclear cells were recruited in the liver after BDL associated with monocyte chemoattractant protein-1 up-regulation. The recruitment of NK and T cells was varied, consistent with IP-10 expression during the time course of OJ. IL-10 expression was significantly up-regulated 14 d after BDL. After LPS administration, the mice at 3 d after BDL and at 3 and 14 d after sham surgery were all still alive, but all mice at 14 d after BDL died. After LPS administration, IL-1beta significantly increased in the mice at 14 d after BDL. CONCLUSIONS: Immune response such as expression of pro- and anti-inflammatory mediators and recruitment of immune cells may thus differ over the time course of OJ. Prolonged OJ may cause excessive inflammation, thus result in susceptibility to infection. 相似文献
6.
Suda K Ohtsuka M Ambiru S Kimura F Shimizu H Yoshidome H Miyazaki M 《American journal of surgery》2009,197(6):752-758
Background
Postoperative hepatic insufficiency is a critical complication after extended hepatic resection in patients with biliary tract malignancies, the majority of whom suffer from obstructive jaundice. The aim of this study was to assess clinical parameters linked to this type of liver dysfunction.Methods
A total of 111 patients were retrospectively reviewed. Patient background, pre- and intraoperative parameters, and a ratio of remnant liver volume/entire liver volume (RLV/ELV) as a volumetric parameter were compared between patients with and without postoperative hyperbilirubinemia and subsequent fatal outcome.Results
Logistic regression indicated that only RLV/ELV ratio was an independent factor influencing postoperative hyperbilirubinemia, and RLV/ELV ratio and indocyanine green retention rate at 15 minutes (ICG-R15) were factors affecting survival. Patients with RLV/ELV less than 40% had 7.6 times the risk of postoperative hyperbilirubinemia, while no patients with RLV/ELV greater than 40% and ICG-R15 less than 25% died of liver failure.Conclusions
The RLV/ELV ratio was the factor with the greatest impact on liver dysfunction after extended hepatectomy in patients with biliary tract malignancies. 相似文献7.
8.
Results of surgical treatment for intrahepatic cholangiocarcinoma and clinicopathological factors influencing survival 总被引:10,自引:0,他引:10
Ohtsuka M Ito H Kimura F Shimizu H Togawa A Yoshidome H Miyazaki M 《The British journal of surgery》2002,89(12):1525-1531
BACKGROUND: The results of surgical treatment for intrahepatic cholangiocarcinoma (ICC) and specific factors influencing survival are still unclear. METHODS: Between 1984 and 2001, 62 patients with ICC underwent laparotomy, with a 77 per cent (48 patients) resectability rate. The tumours in these 48 patients were reviewed retrospectively to examine the relationship between gross appearance (mass forming, periductal infiltrating, intraductal growth, and mass forming plus periductal infiltrating) and patient survival, as well as the manner of recurrence. In patients with mass-forming and mass-forming plus periductal infiltrating types, univariate and multivariate analyses of potential prognostic factors were performed. RESULTS: The 1-, 3- and 5-year survival rates were 62, 38 and 23 per cent respectively. All patients with the intraductal growth type remained alive after intervals ranging from 8 to 72 months. Univariate analysis showed multiple hepatic lesions, liver capsule invasion, presence of cancer cells in the resection margin, and high serum carbohydrate antigen (CA) 19-9 level to be significant negative prognostic factors. Lymph node involvement, however, was not identified as a significant prognostic factor. With multivariate analysis, multiple hepatic lesions and high serum CA19-9 concentration were found to be significantly related to prognosis. The most frequent recurrence site was the remnant liver. CONCLUSION: These results suggest that the intraductal growth type of tumour should be treated as a distinct entity compared with other types of ICC. Multiple tumours and high serum CA19-9 level were signs of dismal prognosis, whereas not all patients with lymph node involvement had a poor prognosis. 相似文献
9.
10.
Shimizu H Ito H Kimura F Togawa A Yoshidome H Ohtsuka M Kato A Nukui Y Miyazaki M 《Hepato-gastroenterology》2005,52(64):1106-1109
BACKGROUND/AIMS: Depression of cell-mediated immunity frequently accompanies solid tumor malignancy, and appears to be worsened as the disease progresses. In this study, we investigated cell-mediated immune status in colorectal cancer patients. METHODOLOGY: Interleukin-2 (IL-2) productivity by phytohemagglutinin (PHA)-stimulated non-adherent peripheral blood mononuclear cells (PBMC), and prostaglandin E2 (PGE2) productivity by LPS-stimulated adherent PBMC were investigated in colorectal cancer patients with hepatic metastasis (n=20) and without hepatic metastasis (n=20), and in non-malignant disease controls (n=20). Percentages of peripheral blood T-cell subsets and NK activity were also investigated. RESULTS: In the colorectal cancer patients with hepatic metastasis IL-2 productivity was significantly decreased, compared with the controls. However, the percentages of T-cell subsets and NK activity were not significantly different among the groups. Meanwhile, PGE2 productivity in the patients with hepatic metastasis was significantly increased, compared with the other groups, and was significantly correlated with the hepatic tumor load. CONCLUSIONS: Tumor-bearing state, especially metastasis to the liver, may influence immune status of the patient. For evaluating cellular immunity status, cytokine productivity by activated lymphocytes and monocytes may be a more sensitive marker rather than other conventional immunological parameters, and may also provide useful information for immune intervention in the treatment of patients from this point of view. 相似文献