【摘要】 目的 了解乙型肝炎病毒（HBV）X基因在HBV相关肝病肝移植受体术后外周单个核细胞（PBMC）和骨髓CD34+细胞内的整合情况及其对乙肝疫苗接种的影响。 方法 采集1999年6月-2005年11月25例HBV相关肝病肝移植受体的外周静脉血及其中23例的骨髓血，以密度梯度离心结合单克隆免疫磁珠分离法获取外周血单个核细胞及骨髓CD34+细胞后，提取细胞DNA。因HBV X基因的整合频率最高，设计HBV X基因的特异引物，进行HBV-Alu-PCR，终产物进行电泳并回收、连接载体、筛选扩增后测序，检测有无X基因整合。 结果 经PCR后电泳及测序分析，25例HBV相关肝病肝移植受体术后的PBMC内未检测出HBV X基因的整合，其中采集到骨髓标本的23例CD34+细胞中亦未检测到HBV X基因的整合。 结论 肝移植术后受体体内HBV微生态的剧烈改变，使HBV整合的基本条件丧失，在此情况下，外周免疫细胞及骨髓造血干/祖细胞不是发生HBV整合的适宜场所，乙肝疫苗接种效果与HBV X基因整合关系不明确。【Abstract】 Objective To investigate whether hepatitis B virus HBV X gene integrates in peripheral blood mononuclear cell (PBMC) and bone marrow CD34+ cells from HBV related liver disease recipients after liver transplantation. Methods Between June 1999 and November 2005, PBMC were obtained from 25 HBV related liver disease recipients after liver transplantation and bone marrow CD34+ cells obtained from 23 cases among them. The cellular DNA was extracted by DNA isolation and purification kit following the manufacture’s instructions. Specific primers to HBV X gene and to human Alu repeats were used to amplify the virus integration through a 3-round hemi-nest PCR. The PCR final product was judged by 1.2% agarose electrophoresis, ligated to T vector, proliferated in E. coil 5α and sequenced. Results According to agarose electrophoresis and sequencing analysis, there were no HBV X gene integration in PBMC and bone marrow CD34+ cells from HBV related liver transplant recipients after surgery. Conclusions Because of the radical change of HBV microecological environment in HBV related liver transplant recipients after operation, the fundamental condition of HBV integration has been lost, which led PBMC and bone marrow CD34+ cells not suit to HBV X gene integrate to human genome. And the impact of HBV X gene integration on HBV vaccination is still undefined.
Objective To evaluate the predictive performance of the geometric characteristics, centerline (CL) of pulmonary nodules for prognosis in patients with surgically treatment in the National Lung Screening Trial (NLST). MethodsCT images of 178 patients who underwent surgical treatment and were diagnosed with non-small cell lung cancer (NSCLC) in the low-dose CT (LDCT) cohort from the NLST image database were selected, including 99 males and 79 females, with a median age of 64 (59, 68) years. CT images were processed using commercial software Mimics 21.0 to record the volume, surface area, CL and the area perpendicular to the centerline of pulmonary nodules. Receiver operating characteristic (ROC) curve was used to compare the predictive performance of LD, AD and CL on prognosis. Univariate Cox regression was used to explore the influencing factors for postoperative disease-free survival (DFS) and overall survival (OS), and meaningful independent variables were included in the multivariate Cox regression to construct the prediction model. ResultsThe area under the curve (AUC) of CL for postoperative recurrence and death were 0.650 and 0.719, better than LD (0.596, 0.623) and AD (0.600, 0.631). Multivariate Cox proportional risk regression analysis showed that pulmonary nodule volume (P=0.010), the maximum area perpendicular to the centerline (MApc) (P=0.028) and lymph node metastasis (P<0.001) were independent risk factors for DFS. Meanwhile, age (P=0.010), CL (P=0.043), lymph node metastasis (P<0.001), MApc (P=0.022) and the average area perpendicular to the centerline (AApc) (P=0.016) were independently associated with OS. ConclusionFor the postoperative outcomes of NSCLC patients in the LDCT cohort of the NLST, the CL of the pulmonary nodule prediction performance for prognosis is superior to the LD and AD, CL can effectively predict the risk stratification and prognosis of lung cancer, and spheroid tumors have a better prognosis.
ObjectiveTo evaluate the changes in thrombelastography(TEG) during orthotopic liver transplantation （OLT） in Chinese. MethodsTwentyfive patients with cirrhosis of liver undergoing OLT were studied. They were composed of two groups: cirrhosis group （n=15） and liver neoplasm group （n=10）. Anesthesia was induced with propofol 1.5-2 mg/kg,fentanyl 3-5 μg/kg and vecuronium 0.1 mg/kg and maintained with isoflurane or enflurane inhalation.The operation was divided into three phases: ① before operation and preanhepatic phase （120 min after operation was started）, ② 30 min after liver was removed,③ 5 min before reperfusion and 5 min,15 min,30 min,60 min and 120 min after reperfusion.In 8 patients among the 25 patients heparinasecelite TEG was measured 5 min after reperfusion in addition to celite TEG.If there was significant differences in traces between the two TEG measurements,an intravenous bolus of 50-75 mg protamine was given and the heparinasecelite TEG was repeated.The measured variables included the r （reaction） time,representing the rate of initial fibrin formation K （coagulation） time, alpha angles （α） reflecting fibrinplatelet interaction, MA （maximal amplitude） indicating qualitative platelet function and percent fibrinolysis at 60 min. ResultsIn cirrhosis group changes in TEG occurred after liver was removed and in earlier period after reperfusion, while in liver neoplasm group changes in TEG were found in earlier period after reperfusion as compared with preoperative value.At 5 min after reperfusion there were significant differences in TEG （r，K，α and MA） values between celite and heparincelite TEG （P＜0.01）. ConclusionDuring OLT coagulation disorder occurs mainly at anhepatic and early reperfusion phase.
Alveolar hydatid disease，Orthotopic liver transplantation，Therapy
ObjectiveTo investigate the clinical value of 3D CT combined with CT-guided Hookwire for localizing small pulmonary nodules in thoracoscopic pulmonary segmentectomy.MethodsFrom December 2017 to February 2019, 39 patients received thoracoscopic pulmonary segmentectomy in our hospital, including 14 males and 25 females with a mean age of 51.33±11.17 years. Before operation, we used Mimics Medical 20.0 to re-establish the anatomy of lung and locate the small pulmonary nodules with Hookwire guided by CT. Based on the position of Hookwire needle, 3D CT images and simulated surgical methods, thoracoscopic pulmonary segmentectomy was performed accurately.ResultsThe surgery was successfully completed in 39 patients without a transfer to open procedure. The mean operation time, mean intraoperative blood loss, mean postoperative hospital stay, mean thoracic tube drainage time were 148.97±28.56 min, 27.95±17.57 mL, 6.95±1.68 d, 4.21±1.95 d, respectively. Postoperative complications occurred in 5 patients (12.82%), including atrial fibrillation in 1, pulmonary infection in 1, chylothorax in 1, intrathoracic hemorrhage in 1 and pneumothorax in 1. All actual surgical margins were larger than 3.0 cm.ConclusionThe application of preoperative 3D CT combined with CT-guided Hookwire to localize small pulmonary nodules is helpful for accurate anatomical segmental resection of the lung, making the operation safe .
Objective To investigate the accuracy of 18F-FDG positron emission tomography/computed tomography (PET/CT) combined with CT three-dimensional reconstruction (CT-3D) in the differential diagnosis of benign and malignant pulmonary nodules. Methods The clinical data of patients who underwent pulmonary nodule surgery in the Department of Thoracic Surgery, Northern Jiangsu People's Hospital from July 2020 to August 2021 were retrospectively analyzed. The preoperative 18F-FDG PET/CT and chest enhanced CT-3D and other imaging data were extracted. The parameters with diagnostic significance were screened by the area under the receiver operating characteristic (ROC) curve (AUC). Three prediction models, including PET/CT prediction model (MOD PET), CT-3D prediction model (MOD CT-3D), and PET/CT combined CT-3D prediction model (MOD combination), were established through binary logistic regression, and the diagnostic performance of the models were validated by ROC curve. Results A total of 125 patients were enrolled, including 57 males and 68 females, with an average age of 61.16±8.57 years. There were 46 patients with benign nodules, and 79 patients with malignant nodules. A total of 2 PET/CT parameters and 5 CT-3D parameters were extracted. Two PET/CT parameters, SUVmax≥1.5 (AUC=0.688) and abnormal uptake of hilar/mediastinal lymph node metabolism (AUC=0.671), were included in the regression model. Among the CT-3D parameters, CT value histogram peaks (AUC=0.694) and CT-3D morphology (AUC=0.652) were included in the regression model. Finally, the AUC of the MOD PET was verified to be 0.738 [95%CI (0.651, 0.824)], the sensitivity was 74.7%, and the specificity was 60.9%; the AUC of the MOD CT-3D was 0.762 [95%CI (0.677, 0.848)], the sensitivity was 51.9%, and the specificity was 87.0%; the AUC of the MOD combination was 0.857 [95%CI (0.789, 0.925)], the sensitivity was 77.2%, the specificity was 82.6%, and the differences were statistically significant (P<0.001). Conclusion 18F-FDG PET/CT combined with CT-3D can improve the diagnostic performance of pulmonary nodules, and its specificity and sensitivity are better than those of single imaging diagnosis method. The combined prediction model is of great significance for the selection of surgical timing and surgical methods for pulmonary nodules, and provides a theoretical basis for the application of artificial intelligence in the pulmonary nodule diagnosis.
ObjectiveTo explore the relationship between liver transplantation procedure with or without preservation of retrohepatic vena cava and postoperative reinfection of hepatitis B virus.MethodsHepatitis B virus makers of 15 retrohepatic vena cava samples from hepatitis B virus active replicating recipients was detected using immunohistochemistry stain LSAB and HBV DNA hybridization in situ. Hepatitis B virus reinfection rate and survival rate after transplantation in classic group (20 cases) and piggyback group (7 cases) was analyzed retrospectively. ResultsHepatitis B virus makers including HBsAg and HBcAg and HBV DNA of all 15 retrohepatic vena cava samples, 10 from classic group and 5 from piggyback group, was negative. In classic group, 20 recipients were followedup 6-30 months, mean 18 months, only one case of hepatitis B recurrence was confirmed 22 months after operation; In piggyback group,7 recipients were followedup 5-12 months, mean 8 months, none of hepatitis B virus reinfection was encountered. Recurrence rate in classic group and piggyback group was 5.0%(1/20) and 0(0/7), respectively.ConclusionThis preliminary study indicated that the retrohepatic vena cava of hepatitis B virus active replicating recipients don’t have the residence and replication of hepatitis B virus particle. Orthotopic liver transplantation procedure with preservation of retrohepatic vena cava appears not to increase the hepatitis B virus reinfection rate in hepatitis B virus active replicating recipients after transplantation.
Esophageal cancer (EC) is the eighth dangerous cancer in the world. As the global population ages, the management of elderly patients with EC poses a challenge as they have many aging-associated diseases and physiological changes. In addition, the data on the tolerability of cancer treatment and the use of combined therapies in the patients to guide their treatment are limited. In this paper, we reviewed the literatures and discussed the effect of surgical resection and the potential complications of elderly patients. We reviewed the basic principles of combined therapy and the potential benefits of chemotherapy or chemoradiotherapy for patients and focused on the management of elderly patients with EC as well as the role of comprehensive assessment for aging to provide treatment options for elderly patients.
【Abstract】ObjectiveTo investigate the perioperative management in hepatectomy using hepatic energy metabolisom for enhancing safety of and improving the survival in patients with primary liver cancer (PLC).MethodsTwo thousands and one hundred fortythree patients with PLC were treated in this hospital from January 1990 to January 2004. The perioperative data, operative approach, postoperative treatment, postoperative clinical course and follow up data were retrospectively analyzed. All patients were divided into two groups: the early period group and the late period group(from January 1997 to January 2004) and comparison was taken between two groups. The preoperative redox tolerance index (RTI), intraoperative hepatopetal blood occlusion of half liver, and postoperative arterial ketone body ratio (AKBR) were investigated and evaluated.Results①The proportion of small PLC and resection rate increased, the morbidity of complications and mortality after hepatectomy decreased, also the survival rate prolonged in the late period group. ②When using RTI as an indicator for selection of hepatectomy, the morbidity of complications decreased from 21.1% to 11.0%, the mortality form 1.6% to 0.3%. ③Comparising hepatopetal blood occlusion of total liver (n=476) with half liver (n=523),the postoperative morbidity of complications and mortality were 25.8% to 11.9% and 2.3% to 0.6% respectively. ④Postoperative AKBR measurements was a reliable indicator to assess the energy status of the liver and liver failure.ConclusionRTI is of potential value in predicting preoperative hepatic functional reserve, hepatopetal blood occlusion of half liver could protect the residual liver function, and postoperative AKBR measuremeant is a simple and accurate means of determining the immediate state of metabolic dysfunctioning in liver resection. The authors propose that perioperative treatment is an important factor in decreasing operative complications and mortality rate after liver resection.