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Nuclear factor-KB decoy oligodeoxynucleotides attenuates ischemia/reperfusion injury in rat liver graft 被引量:14
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作者 Ming-Qing Xu Xiu-Rong Shuai +2 位作者 Mao-Lin yan Ming-Man Zhang lu-nan yan 《World Journal of Gastroenterology》 SCIE CAS CSCD 2005年第44期6960-6967,共8页
AIM: To evaluate the protective effect of NF-kB decoy oligodeoxynucleotides (ODNs) on ischemia/reperfusion (I/R) injury in rat liver graft. METHODS: Orthotopic syngeneic rat liver transplantation was performed w... AIM: To evaluate the protective effect of NF-kB decoy oligodeoxynucleotides (ODNs) on ischemia/reperfusion (I/R) injury in rat liver graft. METHODS: Orthotopic syngeneic rat liver transplantation was performed with 3 h of cold preservation of liver graft in University of Wisconsin solution containing phosphorothioated double-stranded NF-kB decoy ODNs or scrambled ODNs. NF-kB decoy ODNs or scrambled ODNs were injected intravenously into donor and recipient rats 6 and 1 h before operation, respectively. Recipients were killed 0 to 16 h after liver graft reperfusion. NF-kB activity in the liver graft was analyzed by electrophoretic mobility shift assay (EMSA). Hepatic mRNA expression of TNF-α, IFN-γ and intercellular adhesion molecule-1 (ICAM-1) were determined by semiquantitative RT-PCR. Serum levels of TNF-α and IFN-γ were measured by enzyme-linked immunosorbent assays (ELISA). Serum level of alanine transaminase (ALT) was measured using a diagnostic kit. Liver graft myeloperoxidase (MPO) content was assessed. RESULTS: NF-kB activation in liver graft was induced in a time-dependent manner, and NF-kB remained activated for 16 h after graft reperfusion. NF-kB activation in liver graft was significant at 2 to 8 h and slightly decreased at 16 h after graft reperfusion. Administration of NF-kB decoy ODNs significantly suppressed NF-kB activation as well as mRNA expression of TNF-α, IFN-γ, and ICAM-1 in the liver graft. The hepatic NF-kB DNA binding activity [presented as integral optical density (IOD) value] in the NF-kB decoy ODNs treatment group rat was significantly lower than that of the I/R group rat (2.16±0.78 vs 36.78 ±6.35 and 3.06±0.84 vs 47.62± 8.71 for IOD value after 4 and 8 h of reperfusion, respectively, P〈0.001). The hepatic mRNA expression level of TNF-α, IFN-γ and ICAM-1 rpresented as percent of β-actin mRNA (%)] in the NF-kB decoy ODNs treatment group rat was significantly lower than that of the I/R group rat (8.31 ±3.48 vs 46.37±10.65 a 展开更多
关键词 Hepatic ischemia/reperfusion injury NF-KB Liver graft
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Contrast-enhanced ultrasound:Improving the preoperative staging of hepatocellular carcinoma and guiding individual treatment 被引量:16
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作者 Xiao-Yun Zhang yan luo +8 位作者 Tian-Fu Wen Li Jiang Chuan Li Xiao-Fei Zhong Jing-Yi Zhang Wen-Wu Ling lu-nan yan Yong Zeng Hong Wu 《World Journal of Gastroenterology》 SCIE CAS 2014年第35期12628-12636,共9页
AIM: To investigate the clinical role of contrast-enhanced ultrasound (CEUS) combined with contrast-enhanced computed tomography (CE-CT) or magnetic resonance imaging to improve the preoperative staging of hepatocellu... AIM: To investigate the clinical role of contrast-enhanced ultrasound (CEUS) combined with contrast-enhanced computed tomography (CE-CT) or magnetic resonance imaging to improve the preoperative staging of hepatocellular carcinoma (HCC) and guide surgical decision-making. METHODS: Sixty-nine patients who underwent liver resection for HCC in our center were enrolled prospectively in the study. CEUS and CE-CT/MRI were performed before surgery. Intraoperative ultrasound (IOUS) was carried out after liver mobilization. Lesions depicted by each imaging modality were counted and mapped. To investigate the impact of tumor size on the study, we divided the patients into two groups, the 'Smaller group'(S-group, <= 5 cm in diameter) and the 'Largergroup' (L-group, > 5 cm in diameter). The sensitivity, specificity, accuracy, positive predictive value, and negative predictive value of CE-CT/MRI, CEUS, IOUS, CEUS+CE-CT/MRI and the tumor node metastasis staging of tumors were calculated and compared. Changes in the surgical strategy as a result of CEUS and IOUS were analyzed. RESULTS: One hundred and twenty-seven nodules, comprising 94 HCCs confirmed by histopathology and 33 benign lesions confirmed by histopathology and follow-up, were identified in 69 patients. The overall diagnostic sensitivity rates of CE-CT/MRI, CEUS, IOUS and CEUS+ CE-CT/MRI were 78.7%, 89.4%, 89.4% and 89.4%, respectively. There was a significant difference between CEUS + CE-CT/MRI and CE-CT/MRI (P = 0.046). Combining CEUS with CT or MRI increased, the diagnostic specificity compared with CT/MRI, CEUS and IOUS, and this difference was statistically significant (100%, 72.7%, 97.0%, and 69.7%, P = 0.004, P = 0.002, P = 0.002, respectively). The diagnostic accuracy was significantly higher for CEUS + CT/MRI compared with CT/MRI (92.1% vs 77.2%, P = 0.001). The TNM staging of tumors based on CEUS + CE-CT/MRI approximated to the final pathological TNM staging (P = 0.977). There was a significant difference in the accuracy of TNM staging when comparing CEUS + 展开更多
关键词 Hepatocellular carcinoma Contrast-enhanced ultrasound Tumor node metastasis staging Intraoperative ultrasound Liver resection
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Clinicopathological characteristics of 15 patients with combined hepatocellular carcinoma and cholangiocarcinoma 被引量:13
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作者 Zuo, Huai-Quan yan, lu-nan +4 位作者 Zeng, Yong yang, Jia-Ying luo, Hong-Zhi Liu, Jiang-Wen Zhou, Li-Xin 《Hepatobiliary & Pancreatic Diseases International》 SCIE CAS 2007年第2期161-165,共5页
BACKGROUND: Combined hepatocellular carcinoma and cholangiocarcinoma (cHCC-CC) is a rare subtype of primary liver cancer, and clinicopathological features of cHCC-CC have seldom been reported in detail. This study was... BACKGROUND: Combined hepatocellular carcinoma and cholangiocarcinoma (cHCC-CC) is a rare subtype of primary liver cancer, and clinicopathological features of cHCC-CC have seldom been reported in detail. This study was undertaken to explore the diagnosis and clinicopathological characteristics of cHCC-CC in comparison with hepatocellular carcinoma (HCC) and cholangiocarcinoma (CC), respectively. METHODS: The clinical data from 15 patients with cHCC-CC, 132 patients with HCC and 44 patients with CC who had undergone hepatic resection were analyzed retrospectively. Clinicopathological characteristics of cHCC-CC, HCC and CC such as hepatitis B viral infection, serum hepatitis C virus (HCV) antibody, serum alpha-fetoprotein (AFP) level, cirrhosis, vascular invasion, lymph node metastasis, surgical procedure and adjuvant treatment were also analyzed. Follow up was carried out in the patients, and their 1-, 3-, and 5-year survival rates were calculated. RESULTS: Two patients with cHCC-CC were correctly diagnosed by enhanced CT before operation, the other 13 patients were diagnosed by histology and immunohistochemistry after operation. Radical (8/15) and conservative hepatectomy (7/15) for cHCC-CC was similar to that for HCC and CC (P > 0.05). Pathologically cHCC-CC showed more significantly vascular invasion and lymph node metastasis than HCC (P < 0.05), and a similarity to CC (P > 0.05). Hepatitis B viral infection, serum HCV antibody, cirrhosis, and serum AFP level of cHCC-CC patients were similar to those of HCC patients (P > 0.05) but different from CC patients (P < 0.05). The cumulative 1-, 3-, and 5-year survival rates in patients with cHCC-CC were poorer than in patients with HCC or CC (P < 0.05). CONCLUSIONS: Patients with cHCC-CC are seldom diagnosed before operation. The progression of cHCC-CC is more rapid than that of HCC or CC. Survival rate of patients with cHCC-CC after hepatic resection is poorer than that of patients with HCC or CC. 展开更多
关键词 clinicopathological characteristics combined hepatocellular carcinoma and CHOLANGIOCARCINOMA
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Intramuscular hepatitis B immune globulin combined with lamivudine in prevention of hepatitis B recurrence after liver transplantation 被引量:10
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作者 Mao-Lin yan, lu-nan yan, Bo Li, Yong Zeng, Tian-Fu Wen, Wen-Tao Wang, Jia-Yin yang, Ming-Qing Xu, Zhi-Hui Li and Yong-Bing Chen Liver Transplantation Group of Transplantation Center, West China Hospital, Sichuan University, Chengdu 610041, China 《Hepatobiliary & Pancreatic Diseases International》 SCIE CAS 2006年第3期360-363,共4页
BACKGROUND: Combined hepatitis B immune globulin (HBIg) and lamivudine in prophylaxis of the recurrence of hepatitis B after liver transplantation has significantly improved the survival of HBsAg positive patients. Th... BACKGROUND: Combined hepatitis B immune globulin (HBIg) and lamivudine in prophylaxis of the recurrence of hepatitis B after liver transplantation has significantly improved the survival of HBsAg positive patients. This study was undertaken to evaluate the outcomes of liver transplantation for patients with hepatitis B virus (HBV). METHODS: A retrospective chart analysis and a review of the organ transplant database identified 51 patients (43 men and 8 women) transplanted for benign HBV-related cirrhotic diseases between June 2002 and December 2004 who had survived more than 3 months. HBIg was administered intravenously during the first week and intramuscularly thereafter. RESULTS: At a median follow-up of 14.1 months, the overall recurrence rate in the 51 patients was 3.9% (2/51). The overall patient survival was 88.3%, and 82.4% after 1 and 2 years, respectively. A daily oral dose of 100 mg lamivudine for 2 weeks before transplantation for 10 patients enabled 57.1% (4/7) and 62.5% (5/8) of HBV-DNA and HBeAg positive patients respectively to convert to be negative. Intramuscular HBIg was well tolerated in all patients. CONCLUSION: Lamivudine combined with intramuscular HBIg can effectively prevent allograft from the recurrence of HBV after liver transplantation. 展开更多
关键词 LAMIVUDINE hepatitis B immune globulin hepatitis B virus RECURRENCE liver transplantation
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Minimizing tacrolimus decreases the risk of new-onset diabetes mellitus after liver transplantation 被引量:12
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作者 Jiu-Lin Song Wei Gao +11 位作者 yan Zhong lu-nan yan Jia-Yin yang Tian-Fu Wen Bo Li Wen-Tao Wang Hong Wu Ming-Qing Xu Zhe-Yu Chen Yong-Gang Wei Li Jiang Jian yang 《World Journal of Gastroenterology》 SCIE CAS 2016年第6期2133-2141,共9页
AbstractAIM: To investigate the impact of minimum tacrolimus(TAC) on new-onset diabetes mellitus (NODM) afterliver transplantation (LT).METHODS: We retrospectively analyzed the data of973 liver transplant reci... AbstractAIM: To investigate the impact of minimum tacrolimus(TAC) on new-onset diabetes mellitus (NODM) afterliver transplantation (LT).METHODS: We retrospectively analyzed the data of973 liver transplant recipients between March 1999and September 2014 in West China Hospital LiverTransplantation Center. Following the exclusion ofineligible recipients, 528 recipients with a TAC-dominantregimen were included in our study. We calculatedand determined the mean trough concentration ofTAC (cTAC) in the year of diabetes diagnosis in NODMrecipients or in the last year of the follow-up in non-NODM recipients. A cutoff of mean cTAC value forpredicting NODM 6 mo after LT was identified usinga receptor operating characteristic curve. TAC-relatedcomplications after LT was evaluated by χ^2 test, andthe overall and allograft survival was evaluated usingthe Kaplan-Meier method. Risk factors for NODM afterLT were examined by univariate and multivariate Cox regression.RESULTS: Of the 528 transplant recipients, 131(24.8%) developed NODM after 6 mo after LT, andthe cumulative incidence of NODM progressivelyincreased. The mean cTAC of NODM group recipientswas significantly higher than that of recipients in thenon-NODM group (7.66 ± 3.41 ng/mL vs 4.47 ± 2.22ng/mL, P 〈 0.05). Furthermore, NODM group recipientshad lower 1-, 5-, 10-year overall survival rates (86.7%,71.3%, and 61.1% vs 94.7%, 86.1%, and 83.7%, P 〈0.05) and allograft survival rates (92.8%, 84.6%, and75.7% vs 96.1%, 91%, and 86.1%, P 〈 0.05) thanthe others. The best cutoff of mean cTAC for predictingNODM was 5.89 ng/mL after 6 mo after LT. Multivariateanalysis showed that old age at the time of LT (〉 50years), hypertension pre-LT, and high mean cTAC (≥5.89 ng/mL) after 6 mo after LT were independent riskfactors for developing NODM. Concurrently, recipientswith a low cTAC (〈 5.89 ng/mL) were less likely tobecome obese (21.3% vs 30.2%, P 〈 0.05) or todevelop dyslipidemia (27.5% vs 44.8%, P 〈0.05),ch 展开更多
关键词 Liver transplantation Minimum TACROLIMUS NEW-ONSET diabetes MELLITUS IMMUNOSUPPRESSANTS ALLOGRAFTS failure
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Current therapeutic strategies for recurrent hepatitis B virus infection after liver transplantation 被引量:11
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作者 Jiang, Li yan, lu-nan 《World Journal of Gastroenterology》 SCIE CAS CSCD 2010年第20期2468-2475,共8页
Hepatitis B virus (HBV)-related liver disease is the leading indication for liver transplantation (LT) in Asia,especially in China.With the introduction of hepatitis B immunoglobulin (HBIG) and oral antiviral drugs,th... Hepatitis B virus (HBV)-related liver disease is the leading indication for liver transplantation (LT) in Asia,especially in China.With the introduction of hepatitis B immunoglobulin (HBIG) and oral antiviral drugs,the recurrent HBV infection rate after LT has been evidently reduced.However,complete eradication of recurrent HBV infection after LT is almost impossible.Recurrent graft infection may lead to rapid disease progression and is a frequent cause of death within the fi rst year after LT.At present,the availability of new oral medications,especially nucleoside or nucleotide analogues such as adefovir dipivoxil,entecavir and tenofovir disoproxil fumarate,further strengthens our ability to treat recurrent HBV infection after LT.Moreover,since combined treatment with HBIG and antiviral agents after liver re-transplantation may play an important role in improving the prognosis of recurrent HBV infection,irreversible graft dysfunction secondary to recurrent HBV infection in spite of oral medications should no longer be considered an absolute contraindication for liver re-transplantation.Published reviews focusing on the therapeutic strategies for recurrent HBV infection after LT are very limited.In this article,the current therapeutic strategies for recurrent HBV infection after LT and evolving new trends are reviewed to guide clinical doctors to choose an optimal treatment plan in different clinical settings. 展开更多
关键词 THERAPY Hepatitis B virus Recurrent hepatitis B virus infection Antiviral drugs Liver transplantation
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Effect of apolipoprotein E gene Hha Ⅰ restricting fragment length polymorphism on serum lipids in cholecystolithiasis 被引量:9
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作者 LIN Oi-Yuan DU Jing-Ping +4 位作者 ZHANG Ming-Yi YAO Yu-Gwei LI Lin CHENG nan-Sheng yan lu-nan and XI-AO lu-Jia 《World Journal of Gastroenterology》 SCIE CAS CSCD 1999年第3期228-230,共3页
AIM To investigate the role of apolipoprotein E (apoE) polymorphism in the lithogenesis of gallstone and the hereditary pathogenesis of the disease.METHODS Polymerase chain reaction (PCR)was used to study apoE phenoty... AIM To investigate the role of apolipoprotein E (apoE) polymorphism in the lithogenesis of gallstone and the hereditary pathogenesis of the disease.METHODS Polymerase chain reaction (PCR)was used to study apoE phenotypes and allelefrequencies in patients with gallstones and control, and the fasting serum lipids of subjectswere also measured by enzymatic methods.RESULTS The levels of triglyceride (TG) andvery low density lipoprotein cholesterol (VLDLC) were much higher in Ez/, patients than that inE,/, control. E,/, patients were accompanied withremarkably low levels of high density lipoproteincholesterol (HDLC) and its subforms. But in E,/#patients there were only slight changes in levelsof VLDLC and low density lipoprotein cholesterol (LDL--C).CONCLUSION Different apoE phenotype patientswith gallstones have different cheracteristics ofdyslipidemia and the average level of serum lipids in patients with gallstones are higher thansubjects without gallstones in the same apoEgene phenotype. EZ allele is possibly one of thedangerous factors in the lithogenesis of cholecystolithiasis. 展开更多
关键词 LDL LENGTH Effect of apolipoprotein E gene Hha GENE
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Autologous transfusion with modified total hepatic vascular exclusion for extracapsular resection of giant hepatic cavernous hemangioma 被引量:9
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作者 Li, Ming-Hao yan, lu-nan Wang, Shu-Ren 《Hepatobiliary & Pancreatic Diseases International》 SCIE CAS 2007年第1期43-48,共6页
BACKGROUND: This paper was to review the effects of intraoperative autologous transfusion during modified, normal-temperature, total hepatic vascular exclusion (THVE) for extracapsular resection of giant hepatic caver... BACKGROUND: This paper was to review the effects of intraoperative autologous transfusion during modified, normal-temperature, total hepatic vascular exclusion (THVE) for extracapsular resection of giant hepatic cavernous hemangioma. METHODS: The clinical data from 28 patients, who underwent hepatic resection requiring intraoperative autologous transfusion with the cell-saver apparatus, were analyzed retrospectively. The tumors in the 28 patients involved the proximal hepatic veins and inferior vena cava. The diameters of these hemangiomas ranged from 12x15 cm to 18-40 cm. All patients had varying degrees of THVE. ' RESULTS: The 28 patients with hemangioma received integrated resection and recovered. One patient had rupture of tumors resulting in massive hemorrhage of 6000 ml during liver resection; 4 patients had blood transfusions of 400-800 ml; the other 23 patients had no blood transfusion. Only 6 patients underwent the Pringle maneuver with resection. The other 22 patients underwent THVE during the liver resection. The interval of THVE was 5-30 minutes (mean 16 minutes). CONCLUSIONS: Intraoperative autologous transfusion during modified, normal-temperature THVE for extracapsular resection of huge hepatic cavernous hemangioma is feasible. 展开更多
关键词 intraoperative autologous transfusion total hepatic vascular exclusion giant hepatic cavernous hemangioma extracapsular liver resection
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Improved early diagnosis of cystadenocarcinoma of the pancreas 被引量:8
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作者 Wu, Hong Cheng, nan-Sheng +3 位作者 Zhang, yan-Ge luo, Hong-Zhi yan, lu-nan Li, Jin 《Hepatobiliary & Pancreatic Diseases International》 SCIE CAS 2007年第1期87-91,共5页
BACKGROUND: Cystadenocarcinoma of the pancreas is insensitive to radiotherapy and chemotherapy, and surgery is at present the definitive treatment. Early and accurate diagnosis of cystadenocarcinoma is crucial for inc... BACKGROUND: Cystadenocarcinoma of the pancreas is insensitive to radiotherapy and chemotherapy, and surgery is at present the definitive treatment. Early and accurate diagnosis of cystadenocarcinoma is crucial for increasing the five-year survival rate and the resectable rate. There is no definitive and effective method of early diagnosis of cystadenocarcinoma of the pancreas in China and other countries. METHODS: We compared endoscopic ultrasonography-guided (EUS-guided) fine needle aspiration biopsy combined with cyst fluid carcinoembryonic antigen (CEA), CA19-9 examination with computed tomography (CT), B-ultrasonography (B-US) and serum CEA and CA19-9, to explore methods of early diagnosis of cystadenocarcinoma of the pancreas. Retrospective analysis was made on the clinical data of 126 cases of benign pancreatic lesion (90 cases) and cystadenocarcinoma (36). RESULTS: The sensitivity of B-US and CT for cystadenocarcinoma was 52.8% and 77.8%, while the specificity was 78.9% and 86.7%, respectively. When measurement of CEA and CA19-9 of cyst fluid was combined with EUS-guided fine needle aspiration biopsy, the sensitivity was 94.4%, higher than that of B-US and CT (P<0.05). The sensitivity of cyst fluid CEA, CA19-9 examinations was considerably higher than that of serum CEA, CA19-9 (P<0.05). Upper gastrointestinal barium meal and endoscopic retrograde cholangiopancreatography (ERCP) had low sensitivity and specificity. CONCLUSIONS: EUS-guided fine needle aspiration biopsy combined with examination of cyst fluid CEA, CA19-9 is a credible means for early diagnosis of cystadenocarcinoma of the pancreas. B-US, CT and serum CEA, CA19-9 measurements are in common use, their findings are also very important. 展开更多
关键词 CYSTADENOCARCINOMA CYSTADENOMA early diagnosis
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Risks faced by donors of right lobe for living donor liver transplantation 被引量:8
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作者 Ran, Shun Wen, Tian-Fu +8 位作者 yan, lu-nan Li, Bo Zeng, Yong Chen, Zhe-Yu Zhang, Yu Liao, Zhi-Xue Liang, Guan-Lin Li, Guo Zhang, Xian-Hua 《Hepatobiliary & Pancreatic Diseases International》 SCIE CAS 2009年第6期581-585,共5页
BACKGROUND: Because of the shortage of deceased donors with livers fit for transplantation, living donor liver transplantation (LDLT) is becoming an attractive alternative. Attention should be paid to the donors, espe... BACKGROUND: Because of the shortage of deceased donors with livers fit for transplantation, living donor liver transplantation (LDLT) is becoming an attractive alternative. Attention should be paid to the donors, especially to those of the right lobe. In this study, we evaluated the risks faced by donors of the right lobe for adult-to-adult LDLT. METHODS: The perioperative data from 105 consecutive living donors of the right lobe performed in West China Hospital from January 2002 to December 2007 were retrospectively studied. Preoperative evaluation included CT, MRCP, and intraoperative cholangiography, showing liver volume, hepatic vasculature and the biliary system. The standard liver volume (SLV) and the ratio of left lobe volume to SLV were calculated. The right lobe grafts were obtained by transecting the liver on the right side of the middle hepatic vein without inflow vascular occlusion, using an ultrasonic dissector. After operation the donors were monitored in the Intensive Care Unit for about three days. Each donor was followed up for at least 6 months. RESULTS: There was no donor mortality. Major complications occurred in 14 donors (13.3%), of whom 3 received conservative treatment, 8 required invasive paracentesis, and 3 required further surgery. All donors were recovered well and resumed their previous occupations. CONCLUSIONS: Donors of the right lobe face low risks. The preoperative evaluation, especially evaluation of the volume of the remnant liver, should be exact. During the operation, the patency of the remnant hepatic vasculature and bile duct must be preserved, and the extent of injury to the remnant liver should be limited as much as possible. The detection and treatment of postoperative complications should be diligently performed. 展开更多
关键词 liver transplantation living donor right lobe RISK safety
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Microsurgical reconstruction of hepatic artery in A-A LDLT:124 consecutive cases without HAT 被引量:8
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作者 yang, Yi yan, lu-nan +7 位作者 Zhao, Ji-Chun Ma, Yu-Kui Huang, Bin Li, Bo Wen, Tian-Fu Wang, Wen-Tao Xu, Ming-Qing yang, Jia-Yin 《World Journal of Gastroenterology》 SCIE CAS CSCD 2010年第21期2682-2688,共7页
AIM:To retrospectively investigate microsurgical hepatic artery(HA) reconstruction and management of hepatic thrombosis in adult-to-adult living donor liver transplantation(A-A LDLT).METHODS:From January 2001 to Septe... AIM:To retrospectively investigate microsurgical hepatic artery(HA) reconstruction and management of hepatic thrombosis in adult-to-adult living donor liver transplantation(A-A LDLT).METHODS:From January 2001 to September 2009,182 recipients with end-stage liver disease underwent A-A LDLT.Ten of these patients received dual grafts.The 157 men and 25 women had an age range of 18 to 68 years(mean age,42 years).Microsurgical techniques and running sutures with back-wall first techniques were performed in all arterial reconstructions under surgical loupes(3.5 ×) by a group of vascular surgeons.Intimal dissections were resolved by interposition of the great saphenous vein(GSV) between the donor right hepatic artery(RHA) and recipient common HA(3 cases) or abdominal aorta(AA)(2 cases),by interposition of cryopreserved iliac vessels between the donor RHA and recipient AA(2 cases).RESULTS:In the 58 incipient patients in this series,hepatic arterial thrombosis(HAT) was encountered in 4 patients,and was not observed in 124 consecutive cases(total 192 grafts,major incidence,2.08%).All cases of HAT were suspected by routine color Doppler ultrasonographic examination and confirmed by contrast-enhanced ultrasound and hepatic angiography.Of these cases of HAT,two occurred on the 1st and 7th d,respectively,following A-A LDLT,and were immediately revascularized with GSV between the graft and recipient AA.HAT in one patient occurred on the 46th postoperative day with no symptoms,and the remaining case of HAT occurred on the 3rd d following A-A LDLT,and was cured by thrombolytic therapy combined with an anticoagulant but died of multiorgan failure on the 36th d after A-A LDLT.No deaths were related to HAT.CONCLUSION:Applying microsurgical techniques and selecting an appropriate anastomotic artery for HA reconstruction are crucial in reducing the high risk of HAT during A-A LDLT. 展开更多
关键词 Adult-to-adult living donor liver transplantation Hepatic arterial thrombosis Microsurgical reconstruction
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Diagnosis and treatment of bacterial pneumonia in liver transplantation recipients:report of 33 cases 被引量:7
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作者 MA Yu-kui yan lu-nan LI Bo lu Shi-chun HUANG An-hua WEN Tian-fu ZENG Yong CHENG nan-sheng 《Chinese Medical Journal》 SCIE CAS CSCD 2005年第22期1879-1885,共7页
Background Bacterial pneumonia in the recipients of liver transplantation (LTX) is a common postoperative complication influencing the prognosis greatly. In this article, the diagnosis and treatment of bacterial pne... Background Bacterial pneumonia in the recipients of liver transplantation (LTX) is a common postoperative complication influencing the prognosis greatly. In this article, the diagnosis and treatment of bacterial pneumonia in 33 LTX recipients are reported.Methods From February 1999 to January 2003, a total of 103 patients underwent allogeneic LTX at our center; afterwards, a retrospective analysis was made on their postoperative clinical manifestations, including symptoms (expectoration, panting and fever), sign (rale), results of laboratory examinations (white blood cell count and sputum culture of tracheal secretions or pleural fluid culture) , and chest X-ray films. The following data of the pneumonia and non-pneumonia groups were collected, and the rank sum test (SPSS 11.0, Wilcoxon' s method) was used to analyze the duration of postoperative respirator utilization and the volume of pleural effusion through pleurocentesis or pleural drainage. Results In the 103 patients, 33 experienced 53 transplantation, 14 of them (42.42%) had more episodes of bacterial pneumonia during their hospital stay after than three manifestations of the seven mentioned above. The pathogens causing bacterial pneumonia included Pseudomonas aeruginosa ( 17.48% ) , Klebsiella pneumoniae (15.53%), Acinetobacter baumannii ( 10.68% ), and Staphylococcus aureus (7.77%). Amilkacin, tienam, ciprofloxacin, vancomycin, etc. were the antibiotics of choice against those bacteria. Acute rejection occurred during the treatment of bacterial pneumonia in 16 patients, and 5 of them died. Wilcoxon' s rank sum test of the data indicated that the pneumonia group had longer duration of postoperative ventilator treatment and larger volume of pleural effusion than the non-pneumonia group (P 〈 0. 05 ). Conclusions The clinical manifestations of pneumonia after LTX might be atypical, and special attention should be paid to the respiratory symptoms and signs within 2 months after LTX. Whenever the diagnosis of 展开更多
关键词 liver transplantation· pneumonia bacterial· diagnosis · therapeutics
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7家血站实验室抗-HCV ELISA试验临界值评价 被引量:7
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作者 刘正敏 王瑞 +12 位作者 黄力勤 胡京辉 常乐 甄伟 王鹏 王芳 魏超 朱绍汶 曾劲峰 释艳华 郑伟 王露楠 葛红卫 《中国实验血液学杂志》 CAS CSCD 北大核心 2019年第1期253-259,共7页
目的:评价7家血站实验室抗-HCV ELISA实验灰区的必要性及适宜性。方法:7家血站实验室编码为1,2,3,4,5,6和7,而8种ELISA试剂分别编码为A,B,C,D,E,F,G和H。7家血站实验室使用8种不同厂商ELISA试剂中的1种或2种对同一组(n=1259)标本进行抗-... 目的:评价7家血站实验室抗-HCV ELISA实验灰区的必要性及适宜性。方法:7家血站实验室编码为1,2,3,4,5,6和7,而8种ELISA试剂分别编码为A,B,C,D,E,F,G和H。7家血站实验室使用8种不同厂商ELISA试剂中的1种或2种对同一组(n=1259)标本进行抗-HCV检测。对检测结果有差异的标本进行Western blot补充试验以明确标本血清学状态。统计各实验室真阳性检出率、灰区标本确证阳性率以分析7家血站实验室抗-HCV试验"灰区"设置的必要性。通过绘制ROC曲线确定7家血站实验室抗-HCV ELISA试验的最佳临界值,比较3种不同临界值(实验室工作临界值、厂商推荐临界值、最佳临界值)下灵敏度及特异性的变化以分析7家血站实验室抗-HCV ELISA试验"灰区"的合理性。结果:7家血站实验室(其中编码1号实验室采用了A、B两种试剂)真阳性检出率分别是95.40%(1A)、99.23%(1B)、94.25%(2C)、96.17%(3D)、98.08%(4E)、96.93%(5F)、97.32%(6G因为有1家血站使用了两种ELISA试剂)、93.10%(7H)。除2C(94.25%)、7H(93.10%)外其余均大于95%。设立灰区的6家血站实验室(1A、1B、3D、4E、5F、6G和7H)灰区确证阳性率分别为0.00%、0.00%、21.43%、0.00%、0.00%、0.00%、38.89%。绘制ROC曲线比较3种不同临界值关系显示,5家实验室(1B、2C、4E、5F、6G)抗-HCV最佳临界值>厂商推荐临界值>实验室工作临界值,使用厂商推荐的临界值已可以达到筛查实验室高灵敏的要求; 1A、3D、7H抗-HCV最佳临界值<厂商推荐临界值,考虑使用适宜的灰区。设立灰区的6家实验室,使用实验室,工作临界值与使用厂商推荐临界值相比,仅3D、7H灵敏度略有提高(分别为1.60%、2.70%),其余实验室灵敏度无变化且特异性下降(0.20%-0.50%)。结论:除1A、3D、7H可适当设置灰区外,研究结果支持其他实验室抗-HCV ELISA试验取消灰区;即使是同一实验室也要对灰区设置进行科学评估,不宜盲目使用同一尺度,应建立适宜� 展开更多
关键词 ROC曲线 抗-HCV 血站实验室 灰区 酶联免疫吸附试验
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Efficacy of middle hepatic vein reconstruction in adult right-lobe living donor liver transplantation 被引量:7
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作者 Peng, Ci-Jun Wang, Xiao-Fei +6 位作者 Li, Bo Wei, Yong-Gang yan, lu-nan Wen, Tian-Fu yang, Jia-Yin Wang, Wen-Tao Zhao, Ji-Chun 《Hepatobiliary & Pancreatic Diseases International》 SCIE CAS 2010年第2期135-138,共4页
BACKGROUND: Congestion of the right anterior segment may lead to graft dysfunction in right-lobe living donor liver transplantation (LDLT) without a middle hepatic vein (MHV) trunk. Selective reconstruction of MHV tri... BACKGROUND: Congestion of the right anterior segment may lead to graft dysfunction in right-lobe living donor liver transplantation (LDLT) without a middle hepatic vein (MHV) trunk. Selective reconstruction of MHV tributaries with the interposition of vascular grafts has been introduced to overcome this problem. However, there is still no consensus on the definite criteria of MHV reconstruction. METHODS: LDLT patients were reviewed to evaluate the effects of MHV reconstruction. From March 2005 to September 2008 in our transplantation center, 120 consecutive LDLTs were performed using a right-lobe graft without a MHV. Excluding 11 patients, among the remainder, 73 (67%) had reconstructed MHV tributaries, and the others 36 (33%) did not. The values of liver functional index and liver graft regeneration ratio were compared between the two groups. RESULTS: There was a prolonged period of liver functional recovery in patients with small-for-size grafts and a graft-recipient weight ratio (GRWR) <1.0%, and without MHV reconstruction. The ratio of liver regeneration 1 month postoperatively in reconstruction cases was 81%, versus 78% in patients without reconstruction (P=0.352), but among small-for-size grafts, there was a significant difference between the two groups (95% vs. 80%). CONCLUSION: Our study shows that reconstruction of MHV tributaries is not necessary in all patients, but is beneficial for patients with GRWR <1.0%. (Hepatobiliary Pancrent Dis Int 2010; 9: 135-138) 展开更多
关键词 middle hepatic vein RECONSTRUCTION living donor liver transplantation interposition vascular conduits
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水与微观结构对片岩波速各向异性特征的影响及其机制研究 被引量:6
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作者 尹晓萌 晏鄂川 +1 位作者 王鲁男 王闫超 《岩土力学》 EI CAS CSCD 北大核心 2019年第6期2221-2230,2238,共11页
选取3类不同宏观特征的武当群片岩岩样,分别制取不同片理角的标准圆柱试样。采用波速测试获取烘干、浸水处理后的试样的纵波速度,分析不同含水状态下武当群片岩波速各向异性特征,并结合偏光显微镜、扫描电镜下3类岩样的矿物组成与微观... 选取3类不同宏观特征的武当群片岩岩样,分别制取不同片理角的标准圆柱试样。采用波速测试获取烘干、浸水处理后的试样的纵波速度,分析不同含水状态下武当群片岩波速各向异性特征,并结合偏光显微镜、扫描电镜下3类岩样的矿物组成与微观结构特征,探讨内外影响因素下的波速各向异性机制。结果显示:武当群片岩主要矿物为硬质粒状石英、长石与软质片状白云母,硬质矿物含量越高、孔隙率越小,则片岩纵波速度越大,反之越小;干燥样的纵波速度表现出显著各向异性,传播方向由垂直片理面向平行片理面变换时,波速逐渐增大,不同方向的波速值可用波速圆公式进行预测;波速各向异性本质上是微裂隙的定向展布、间隔分布的结果,可间接用白云母定向系数δ2评价各向异性程度k,k1/2与δ2呈线性正相关,武当群片岩的k值上限为2.90;浸水后试样的纵波速度普遍增大,这是水充填空隙后对片岩等效体积模量的增加起主控作用的结果,片岩吸水后的波速增长效应受其孔隙率与微裂隙分布特征影响,引起不同类片岩间的纵波速度差异,导致同类片岩的波速各向异性程度与浸水时长呈负相关。 展开更多
关键词 片岩 纵波速度 各向异性 微观结构 机制
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Hemi-portocaval shunt: A simple salvage maneuver for small-for-size graft during living donor liver transplantation: a case report 被引量:5
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作者 HUANG Ji-wei yan lu-nan CHEN Zhe-yu WU Hong lu Qiang XU Ying-long Pankaj Prasoon ZENG Yong 《Chinese Medical Journal》 SCIE CAS CSCD 2011年第14期2231-2233,共3页
Since the fast expansion of living donor liver transplantation (LDLT) over last few decades, small-for-size syndrome (SFSS) has emerged as a tough problem. Herein the first case of LDLT combined hemi-portocaval sh... Since the fast expansion of living donor liver transplantation (LDLT) over last few decades, small-for-size syndrome (SFSS) has emerged as a tough problem. Herein the first case of LDLT combined hemi-portocaval shunt in the mainland of China was reported. Portal venous overperfusion was well modulated and the recipient recovered uneventfully. LDLT combined hemi-portocaval shunt was a feasible procedure for preventing SFSS in LDLT. 展开更多
关键词 liver transplantation small-for-size syndrome hepatocellular carcinoma
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Postoperative complications after liver transplantation with cavoportal hemitransposition 被引量:5
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作者 yan, Mao-Lin Zeng, Yong +5 位作者 Li, Bo Xu, Ming-Qing Wen, Tian-Fu Wang, Wen-Tao yang, Jia-Yin yan, lu-nan 《Hepatobiliary & Pancreatic Diseases International》 SCIE CAS 2008年第3期322-324,共3页
BACKGROUND: Extensive portal vein thrombosis (PVT) in the recipient of liver transplantation increases postoperative morbidity and mortality. Cavoportal hemitransposition (CPHT) has been described as a salvage techniq... BACKGROUND: Extensive portal vein thrombosis (PVT) in the recipient of liver transplantation increases postoperative morbidity and mortality. Cavoportal hemitransposition (CPHT) has been described as a salvage technique in the presence of extensive portal and superior mesenteric venous thrombosis. METHODS: We report three patients who underwent this procedure, review the literature, and discuss the postoperative complications of CPHT. RESULTS: Fifty-six patients with extensive PVT who underwent CPHT have been reported. Seventeen patients have died to date. The common complications of CPHT were ascites (55.4%), renal insufficiency (48.2%), variceal bleeding (30.4%), or thrombosis of cavoportal anastomosis or portal branch (14.3%). CONCLUSION: CPHT is a salvage measure to maintain the patency of portal inflow to the liver graft in the presence of extensive PVT. 展开更多
关键词 portal vein thrombosis cavoportal hemitransposition COMPLICATION liver transplantation
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Outcome of hepatocellular carcinoma treated by liver transplantation:comparison of living donor and deceased donor transplantation 被引量:5
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作者 Li, Chuan Wen, Tian-Fu +5 位作者 yan, lu-nan Li, Bo yang, Jia-Ying Wang, Wen-Tao Xu, Ming-Qing Wei, Yong-Gang 《Hepatobiliary & Pancreatic Diseases International》 SCIE CAS 2010年第4期366-369,共4页
BACKGROUND: Liver transplantation (LT) has been widely accepted as the treatment of choice for end-stage liver diseases. Due to the scarcity of cadaveric donors, adult-to-adult living donor liver transplantation (LDLT... BACKGROUND: Liver transplantation (LT) has been widely accepted as the treatment of choice for end-stage liver diseases. Due to the scarcity of cadaveric donors, adult-to-adult living donor liver transplantation (LDLT) is advocated as a practical alternative to deceased donor liver transplantation (DDLT). However, some reports suggest that the long-term and recurrence-free survival rates of LDLT are poorer than those of DDLT for hepatocellular carcinoma (HCC). This study aimed to compare the long-term and recurrence-free survival rates of HCC between LDLT and DDLT. METHODS: We retrospectively analyzed the clinical data of 150 patients with HCC from January 2005 to March 2009. Eleven patients who died of complications during the perioperative period were excluded. The remaining 139 eligible patients (101 DDLT and 38 LDLT) were regularly followed up to October 2009. The Chi-square test or Fisher's exact test were used to compare the characteristics of LDLT and DDLT. The long-term and recurrence-free survival curves of both groups were determined using the Kaplan-Meier method with comparisons performed using the log-rank test. One-way analysis of variance was performed to compare the waiting time of the two groups. RESULTS: Survival rates at 1, 2, 3, and 4 years for LDLT were 81%, 62%, 53%, and 45% and for DDLT were 86%, 60%, 50%, and 38%, respectively. The overall 1-, 2-, 3-, and 4-year recurrence-free rates for LDLT were 71%, 49%, 42%, and 38%, and for DDLT were 76%, 52%, 41%, and 37%, respectively. No significant differences were found by the log-rank test on both long-term and recurrence-free survival rates. CONCLUSIONS: The role of LDLT is reinforced by our study. It may expand the donor pool and achieve the same long-term and recurrence-free survival rates of DDLT. 展开更多
关键词 hepatocellular carcinoma liver transplantation living donor deceased donor long-term survival recurrence-free survival
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各向异性片岩的微观组构信息定量提取与断面形貌特征分析 被引量:4
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作者 尹晓萌 晏鄂川 +1 位作者 王鲁男 陈利 《岩土力学》 EI CAS CSCD 北大核心 2019年第7期2617-2627,2729,共12页
取3类具有明显片理面的武当群片岩,采用偏光显微镜、扫描电镜研究其微观组构、断面形貌特征。构建了面积百分比、尺寸与周长-面积分形维数、定向分布系数等指标,利用IPP专业图像处理软件,对矿物和孔隙(微裂隙)两系统的含量、形态、分布... 取3类具有明显片理面的武当群片岩,采用偏光显微镜、扫描电镜研究其微观组构、断面形貌特征。构建了面积百分比、尺寸与周长-面积分形维数、定向分布系数等指标,利用IPP专业图像处理软件,对矿物和孔隙(微裂隙)两系统的含量、形态、分布特征等进行定量分析;并基于Matlab的数字图像处理技术,对断裂面粗糙度展开定量评价。偏光显微镜下显示,片岩具有矿物定向排列与粒、片状矿物近互层状分布的典型特征。矿物系统的微观定量分析结果表明:武当群片岩白云母的含量为11%~30%;小岛法计算的白云母矿物周长-面积分形维数为1.31~1.39;定向分布系数为0.61~0.85;微裂隙依附于白云母矿物边缘孕育、扩展,导致武当群片岩的孔隙(微裂隙)微观指标与对应的矿物微观指标有较强的相关性。沿片理面的片岩断面主要呈现沿晶破坏特征,断口较平坦,基于断面形貌图绘制的灰度信号波曲线的盒维数为1.48~1.60;斜交片理面破裂的片岩断面以穿晶破坏为主,有穿晶-沿晶破坏交替而生的迹象,断口粗糙起伏,对应的灰度信号波曲线的盒维数为1.65~1.69。武当群片岩的断面粗糙度各向异性约为1.03~1.14。 展开更多
关键词 片岩 微观组构 断面形貌 图像处理 各向异性
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北京某医院五种血源检测结果对比分析 被引量:3
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作者 肖艳 张宏飞 +7 位作者 叶佩玉 王彦 国杰 桂萍 宋英伟 张录楠 张婷 汪德清 《标记免疫分析与临床》 CAS 2019年第1期1-5,共5页
目的对比分析2013-2017年某医院献血中心采集的5种血源的检测结果数据,提出优化采血工作模式,减少血液不合格率的建议。方法收集2013~2017年某医院院内团体献血、院外团体献血、成分献血、街头采血、互助献血五种血源ALT及血液感染性指... 目的对比分析2013-2017年某医院献血中心采集的5种血源的检测结果数据,提出优化采血工作模式,减少血液不合格率的建议。方法收集2013~2017年某医院院内团体献血、院外团体献血、成分献血、街头采血、互助献血五种血源ALT及血液感染性指标HBsAg、抗-HCV、抗-HIV、抗-TP数据进行统计分析。结果 2013~2017年五种血源标本共198662例,互助献血人群血液不合格率最高,其次是街头采血;5项检查中ALT不合格率居第一,其次为HBsAg;初筛可以有效降低采血后血液不合格率,其差异具有统计学意义。结论优化献血流程,加强质量管理和规范操作,确保输血安全,减少浪费。 展开更多
关键词 血液检测 血源 不合格率
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