Neutrophils are the most abundant myeloid-derived eukaryotic cells in human blood with increasingly recognized as important regulators of cancer progression. However, the functional importance of tumor-associated neutrophils (TANs) is often overlooked due to their short-lived, terminally differentiated, non-proliferative properties. In recent years, a wealth of evidences obtained from experimental tumor models and cancer patients had indicated that TANs had obvious heterogeneity in morphology and function, and TANs had dual functions of pro- and anti-tumor in cancer patients. This review provides an adequate overview of the heterogeneity and distinct roles of neutrophils.
目的:探讨活体右半肝移植供体术后并发症及其处理。方法:回顾性分析了我院肝移植中心的120例活体肝移植供体术后并发症发生的类型和临床处理方法。结果:120例活体肝移植供体术后都出现肝功能实验室指标的短期变化,其中114例术后1周内恢复正常;6例恢复时间大于1周。术后并发症总发生率9.16%,其中严重并发症发生率4.16%,轻微并发症发生率5.00%。所有术后并发症得到及时的发现和处理,恢复良好。结论:经过严密的术前检查和评估、充分的术前准备、细致的术中操作和全面的术后监护与治疗,活体右半肝移植供体的手术安全性较高,近期预后较好。
ObjectiveTo better understand artificial intelligence (AI) and its application in management of liver cancer.MethodThe relevant literatures about AI in the diagnosis and treatment of liver cancer in recent years were reviewed.ResultsIn terms of diagnosis, the deep learning could precisely and quickly complete the imaging localization and segmentation of the liver, which was helpful for the diagnosis, while radiomics had a high value in assisting the diagnosis of liver cancer, predicting the postoperative recurrence and long-term survival of patients with liver cancer. In regard of treatment, although it was still difficult for AI to intervene in liver surgery, it had significant advantages in formulating individualized operation scheme for patients with liver cancer, which enabled precise hepatectomy and was helpful for prediction of intraoperative bleeding. AI fusion imaging could provide assistance in operation plan making and realize the precise placement of ablation needle. AI was able to predict the tumor response or even tumor progression after interventional therapy and radiotherapy. Pathological analysis was also facilitated by AI and was able to identify some details and feature textures that were difficult to manually distinguish. For transplantation, guidance of AI on the allocation of donor livers based on hazards models helped make better use of limited organ resources. AI could be applied in prognosis prediction in almost all treatment modalities.ConclusionsAI provides more efficient and precise diagnosis, treatment support and prognosis than conventional medical process in liver cancer, generally by constructing a fully functional model based on a series of data mining methods combined with statistical analysis.
ObjectiveTo investigate the association between preoperative systemic immune-inflammation index (SII) and early allograft dysfunction (EAD) in liver transplant recipients. MethodsThe patients underwent liver transplantation who met the inclusion and exclusion criteria in the West China Hospital of Sichuan University from January 2015 to December 2019 were collected. The postoperative EAD was analyzed. The generalized propensity score weighting (GPSW) were used to balance the confounding factors affecting the occurrence of EAD. ResultsA total of 390 patients who met the inclusion and exclusion criteria were enrolled in this study, 93 cases of EAD occurred, the incidence of EAD was 23.8%. The recipient’s model for endstage liver disease score and Child-Pugh grade, the donor’s body mass index, age, and graft weight, and the intraoperative cold ischemia time, liver transplantation time, intraoperative blood loss, total infusion, red blood cell transfusion, autologous blood reinfusion, fresh frozen plasma transfusion, concentrated platelet transfusion, total red blood cell and autologous blood transfusions were balanced by GPSW, then the overall mean correlation coefficient of the 14 covariables and SII decreased from 0.049 to 0.039, and each covariable reached the standard of less than 0.1. The binary logistic regression analysis based on GPSW showed that there was no significant association between SII and EAD (P=0.371). ConclusionFrom preliminary result of this study, it is not found that preoperative SII of liver transplantation patients is related to occurrence of postoperative EAD.
Large-for-size syndrome (LFSS) is a fatal complication of abdominal and thoracic organ compression due to mismatch of the size of the graft and recipient abdominal cavity. In recent years, with the increased prevalence of obesity epidemic among the donor pool, the incidence of LFSS tends to increase in adult liver transplantation. However, it is still unclear how to effectively prevent LFSS after adult death after citizen death (DCD) liver transplantation. Almost all transplantation centers rely on experience to deal with it, and there is no objective prevention strategy. This article summarizes the current problems in preventing LFSS after adult DCD liver transplantation, and our team’s exploration of the existing problems.
Objective To summarize the research progress of health care transition (HCT) for pediatric liver transplant recipients. Method The literatures of HCT for pediatric liver transplant recipients were reviewed, and the concept, related factors, interventions and methods of health care transition were summarized. ResultsHCT is the process of moving from a child/family-centered model of care to an adult or patient-centered model of health care, and influenced by health care provider, child and caregivers, and other factors such as medical policy and economic level. Personalized transition program has more benefits for improving the experience and health outcomes of patients. Conclusion problem-oriented and demand-oriented transition program is recommended, early intervention to improve self-management abilities of children, information construction of pediatric medical system and multidisciplinary team building are important for improving health outcomes of patients.
Objective To investigate the reversal of the multidrug resistant gene mdr1 in vivo by antisense oligodeoxynucleotide （ASODN） on the basis of study in vitro. Methods The cultured drug-resistant human hepatocellular carcinoma cells were injected under the skin of axilla to establish the tumor model of nude mice. mdr1 ASODN accompanied by Lipofectamine were injected locally and ADM was injected intraperitoneally. Control 1 and control 2 were locally injected by Lipofectamine and normal saline separately, and ADM was also injected intraperitoneally. Results As time went on the tumor size increased and from the 5th day on alterations were marked, tumor size in different time phase showed marked difference to the prior time phase with significant difference (P＜0.05）. Tumor size in group ASODN was marked smaller than that of other 3 groups after the 5th day (P＜0.05)，while tumor size of group control 1,2 and group SODN in different phase showed no significant difference (Pgt;0.05). The results suggested that SODN and Lipofectamine showed no marked effect on tumor growth of nude mice and ASODN had marked inhibition effect on tumor growth. Conclusion mdr1 ASODN can also reverse multidrug resistance of drug-resistant human hepatocellular carcinoma cells in vivo. After the treatment the tumor’s growth in nude mice will slow down in a range of time.
Objective To explore feasibility and effectiveness of three-dimensional (3D) printing technology in precise hepatectomy. Methods The patient was a 60-year-old woman with diagnosis of liver malignancy. The liver model was reconstructed using the IQQA Liver System (EDDA Technology, Inc. USA) based on the CT scan data. The volumes of the liver and the lesion were measured and recorded. The CT data were further digitally reconstructed by means of cloud computing and storage with RevoCloud (V1.0) Medical Imaging System. The best surgical plan was determined by the repeated virtual surgical resection with the reconstruction system, based on the corresponding resected liver volume and the remaining liver volume. Results The reconstruction of liver clearly showed that the tumor invaded the right hepatic and middle hepatic veins, as well as the anterior branch of right portal vein, which was consistent with the conclusion of CT scan. In the other hand, the right posterior branch of the portal vein was completely distributed in the segment Ⅴ and Ⅵ, while a relatively large right posterior inferior vena presented and drained segment Ⅴ and Ⅵ. The anatomic resection of segment Ⅶ, Ⅷ , and Ⅳa was completed according to the preoperative plan. The liver function kept recovering, and the patient discharged a week later. Conclusion Results of this patient show that 3D printing technology can accurately assess anatomic construction of liver and determine relationship between lesion and its surrounding tissue, which can be effectively used in precise hepatectomy.
Objective To investigate quality of life of pediatric living donor liver transplantation recipient (PLDLTR) and analyze it’s influencing factors. Methods The convenient sampling method was adopted. Fifty-three PLDLTRs from May 2012 to January 2017 in the West China Hospital of Sichuan University were selected. At the same time, 56 children who participated in the physical examination and had no abnormality results were selected as reference (control group), their age and gender matched with the PLDLTRs. A general data inventory and a self-assessment scale for children’s quality of life (Pediatric Quality of Life Inventory 4 Generic Core Scales, PedsQL4.0) were used to evaluate the quality of life of the 53 PLDLTRs. Results A total of 53 questionnaires were distributed to all the 2 groups, all of them were effectively recovered. The points of quality of life of the physiological function, emotional function, social function, and school performance for the PLDLTRs were significantly higher than those of the control group (P<0.050), which for the PLDLTRs with male and more than 3 years after the operation were significantly higher than those of the PLDLTRs with female and within 1 year after the operation (P<0.050). For the PLDLTRs with age >4 years old, the points of the emotional function, social function, and school performance were significantly higher than those of the PLDLTRs with age ≤4 years old. For the PLDLTRs without postoperative complications, the points of quality of life of the physiological function, emotional function, and school performance were significantly higher than those of the PLDLTRs with Ⅱ grade of postoperative complications (P<0.050). Conclusions Life quality of PLDLTR is poorer than that of normal children. Postoperative time, postoperative complications, age, and gender are certainly associated with quality of life for PLDLTR.
Objective To explore surgery strategy of reoperation for type Ⅳa congenital choledochal cyst. Methods The patient was a 20-year-old female with repeated right upper abdominal pain and fever for more than 1 year and aggravation for more than 1 month, and the choledochal cyst excison was performed 15 years ago. The MRI revealed that a huge cyst located in the left lobe of liver, with multiple intrahepatic calculus. The patient was diagnosed with a type Ⅳa congenital choledochal cyst and choledochojejunostomy later and the intrahepatic dilated bile duct was untreated. Results The cystic dilatation of the intrahepatic bile duct was confirmed during the reoperation, and the multiple stones with pus formation were seen, the color of the right liver was normal and the anatomical left hemihepatectomy was performed. The original anastomosis had no stenosis then was preserved. An about 1.5 cm length of extrahepatic bile duct was dissociated from the upper of anastomosis, and the extrahepatic bile duct was cut open and explored with a choledochoscope. The T-tube drainage was performed following removing the stone. The patient recovered well and was discharged smoothly following the surgery. The cholangiography 6 weeks later revealed that the biliary tract was patency and there was no residual stone. There was no jaundice or fever afterwards. Conclusion Complete excision of choledochal cyst and hepaticoduodenostomy is widely accepted as a standard surgery for type Ⅳa congenital choledochal cyst.