1.Clinical application and perspectives of unilateral biportal endoscopic technique
Zhen HU ; Yang YANG ; Shu-Xiong ZHAO ; Qun-Li ZHANG ; Tong-Tong ZHANG ; Lin LIU
Medical Journal of Chinese People's Liberation Army 2024;49(3):349-354
		                        		
		                        			
		                        			Unilateral biportal endoscopic(UBE)technique is a minimally invasive spinal technique developed rapidly in recent years.Compared with traditional spinal endoscopy,the prominent feature of UBE is that it can open two channels on the same side of the spine,which can be used to provide visual field and insert operating instruments respectively,greatly expanding the operating space and reducing the difficulty of surgery.It has the advantages of less bleeding,little injury,quick recovery and mild pain,and has unique advantages in the treatment of lumbar spinal stenosis,lumbar disc herniation and other lumbar degenerative diseases.With the continuous in-depth exploration and development of the UBE technique,the field of diseases that can be treated by this technology has gradually expanded.It is not only limited to lumbar diseases,but also has made great progress in cervical and thoracic diseases,which has attracted the attention of many spinal surgeons.UBE technique has become one of the promising surgical methods for spinal-related diseases,but there are also complications such as incomplete decompression,nerve root and dural injury,epidural hematoma,relatively prolonged operation time,operation fatigue and other deficiencies.This paper summarizes the progress of the UBE technique,discusses its complications and deficiencies,proposes relevant solutions and possible future directions for its development,so as to provide reference for the clinical practice of UBE technique.
		                        		
		                        		
		                        		
		                        	
2.Research on the willingness to purchase Huimin Insurance from the perspective of behavioral economics:Based on a survey in Liaoning province
Qun WANG ; Jie-Xiong XIAO ; Zhen-Yu YANG
Chinese Journal of Health Policy 2024;17(9):14-21
		                        		
		                        			
		                        			Huimin Insurance is an important exploration of building a multi-level medical security system in China.At present,its sustainable development is in trouble.In order to cope with this dilemma,Based on the perspective of Behavioral Economics,this study incorporates individual psychological factors into the decision-making.This paper also applies behavioral economics to the research of Huimin Insurance,which expands the connotation and application scope of behavioral economics theory.By establishing an insurance purchase decision-making process model based on behavioral economics,three psychological variables of risk perception,concept cognition,and value cognition are extracted from the three stages of insurance purchase decision-making process model.Using the survey data of Huiliao Insurance in Liaoning Province,this paper analyzes the path of psychological variables on Huiliao Insurance's willingness to purchase insurance.The main results show that in the insurance purchase decision-making,there is a sequential relationship between variables,and there is a path of"risk perception→concept cognition→value cognition→purchase intention".Concept cognition and value cognition play a chain mediating role.At the same time,there is a leap between the action paths,which is mainly manifested in the fact that conceptual cognition and value cognition play a role between risk perception and insurance purchase intention as separate intermediaries.There are two paths:"perception→conceptual cognition→insurance purchase intention"and"risk perception→value cognition→insurance purchase intention".Based on the above conclusions,this study puts forward the following suggestions:Deepen health risk education and enhance public risk awareness;strengthen the publicity and promotion of Huimin Insurance,improve awareness and value cognition;establish a user feedback mechanism to continuously optimize products and services.
		                        		
		                        		
		                        		
		                        	
3.Chinese expert consensus on blood support mode and blood transfusion strategies for emergency treatment of severe trauma patients (version 2024)
Yao LU ; Yang LI ; Leiying ZHANG ; Hao TANG ; Huidan JING ; Yaoli WANG ; Xiangzhi JIA ; Li BA ; Maohong BIAN ; Dan CAI ; Hui CAI ; Xiaohong CAI ; Zhanshan ZHA ; Bingyu CHEN ; Daqing CHEN ; Feng CHEN ; Guoan CHEN ; Haiming CHEN ; Jing CHEN ; Min CHEN ; Qing CHEN ; Shu CHEN ; Xi CHEN ; Jinfeng CHENG ; Xiaoling CHU ; Hongwang CUI ; Xin CUI ; Zhen DA ; Ying DAI ; Surong DENG ; Weiqun DONG ; Weimin FAN ; Ke FENG ; Danhui FU ; Yongshui FU ; Qi FU ; Xuemei FU ; Jia GAN ; Xinyu GAN ; Wei GAO ; Huaizheng GONG ; Rong GUI ; Geng GUO ; Ning HAN ; Yiwen HAO ; Wubing HE ; Qiang HONG ; Ruiqin HOU ; Wei HOU ; Jie HU ; Peiyang HU ; Xi HU ; Xiaoyu HU ; Guangbin HUANG ; Jie HUANG ; Xiangyan HUANG ; Yuanshuai HUANG ; Shouyong HUN ; Xuebing JIANG ; Ping JIN ; Dong LAI ; Aiping LE ; Hongmei LI ; Bijuan LI ; Cuiying LI ; Daihong LI ; Haihong LI ; He LI ; Hui LI ; Jianping LI ; Ning LI ; Xiying LI ; Xiangmin LI ; Xiaofei LI ; Xiaojuan LI ; Zhiqiang LI ; Zhongjun LI ; Zunyan LI ; Huaqin LIANG ; Xiaohua LIANG ; Dongfa LIAO ; Qun LIAO ; Yan LIAO ; Jiajin LIN ; Chunxia LIU ; Fenghua LIU ; Peixian LIU ; Tiemei LIU ; Xiaoxin LIU ; Zhiwei LIU ; Zhongdi LIU ; Hua LU ; Jianfeng LUAN ; Jianjun LUO ; Qun LUO ; Dingfeng LYU ; Qi LYU ; Xianping LYU ; Aijun MA ; Liqiang MA ; Shuxuan MA ; Xainjun MA ; Xiaogang MA ; Xiaoli MA ; Guoqing MAO ; Shijie MU ; Shaolin NIE ; Shujuan OUYANG ; Xilin OUYANG ; Chunqiu PAN ; Jian PAN ; Xiaohua PAN ; Lei PENG ; Tao PENG ; Baohua QIAN ; Shu QIAO ; Li QIN ; Ying REN ; Zhaoqi REN ; Ruiming RONG ; Changshan SU ; Mingwei SUN ; Wenwu SUN ; Zhenwei SUN ; Haiping TANG ; Xiaofeng TANG ; Changjiu TANG ; Cuihua TAO ; Zhibin TIAN ; Juan WANG ; Baoyan WANG ; Chunyan WANG ; Gefei WANG ; Haiyan WANG ; Hongjie WANG ; Peng WANG ; Pengli WANG ; Qiushi WANG ; Xiaoning WANG ; Xinhua WANG ; Xuefeng WANG ; Yong WANG ; Yongjun WANG ; Yuanjie WANG ; Zhihua WANG ; Shaojun WEI ; Yaming WEI ; Jianbo WEN ; Jun WEN ; Jiang WU ; Jufeng WU ; Aijun XIA ; Fei XIA ; Rong XIA ; Jue XIE ; Yanchao XING ; Yan XIONG ; Feng XU ; Yongzhu XU ; Yongan XU ; Yonghe YAN ; Beizhan YAN ; Jiang YANG ; Jiangcun YANG ; Jun YANG ; Xinwen YANG ; Yongyi YANG ; Chunyan YAO ; Mingliang YE ; Changlin YIN ; Ming YIN ; Wen YIN ; Lianling YU ; Shuhong YU ; Zebo YU ; Yigang YU ; Anyong YU ; Hong YUAN ; Yi YUAN ; Chan ZHANG ; Jinjun ZHANG ; Jun ZHANG ; Kai ZHANG ; Leibing ZHANG ; Quan ZHANG ; Rongjiang ZHANG ; Sanming ZHANG ; Shengji ZHANG ; Shuo ZHANG ; Wei ZHANG ; Weidong ZHANG ; Xi ZHANG ; Xingwen ZHANG ; Guixi ZHANG ; Xiaojun ZHANG ; Guoqing ZHAO ; Jianpeng ZHAO ; Shuming ZHAO ; Beibei ZHENG ; Shangen ZHENG ; Huayou ZHOU ; Jicheng ZHOU ; Lihong ZHOU ; Mou ZHOU ; Xiaoyu ZHOU ; Xuelian ZHOU ; Yuan ZHOU ; Zheng ZHOU ; Zuhuang ZHOU ; Haiyan ZHU ; Peiyuan ZHU ; Changju ZHU ; Lili ZHU ; Zhengguo WANG ; Jianxin JIANG ; Deqing WANG ; Jiongcai LAN ; Quanli WANG ; Yang YU ; Lianyang ZHANG ; Aiqing WEN
Chinese Journal of Trauma 2024;40(10):865-881
		                        		
		                        			
		                        			Patients with severe trauma require an extremely timely treatment and transfusion plays an irreplaceable role in the emergency treatment of such patients. An increasing number of evidence-based medicinal evidences and clinical practices suggest that patients with severe traumatic bleeding benefit from early transfusion of low-titer group O whole blood or hemostatic resuscitation with red blood cells, plasma and platelet of a balanced ratio. However, the current domestic mode of blood supply cannot fully meet the requirements of timely and effective blood transfusion for emergency treatment of patients with severe trauma in clinical practice. In order to solve the key problems in blood supply and blood transfusion strategies for emergency treatment of severe trauma, Branch of Clinical Transfusion Medicine of Chinese Medical Association, Group for Trauma Emergency Care and Multiple Injuries of Trauma Branch of Chinese Medical Association, Young Scholar Group of Disaster Medicine Branch of Chinese Medical Association organized domestic experts of blood transfusion medicine and trauma treatment to jointly formulate Chinese expert consensus on blood support mode and blood transfusion strategies for emergency treatment of severe trauma patients ( version 2024). Based on the evidence-based medical evidence and Delphi method of expert consultation and voting, 10 recommendations were put forward from two aspects of blood support mode and transfusion strategies, aiming to provide a reference for transfusion resuscitation in the emergency treatment of severe trauma and further improve the success rate of treatment of patients with severe trauma.
		                        		
		                        		
		                        		
		                        	
4.Evaluation of inhibitory effect of tumor vaccine in colon carcinoma model mice
Lu HAN ; LIANG Zhao yuan ; SHI Si wei ; YANG Li qun ; DENG Xiong wei ; SHENG Wang
Chinese Journal of Biologicals 2023;36(1):11-15+20
		                        		
		                        			Objective:
		                        			To evaluate the inhibitory effect of tumor vaccines in colon carcinoma model mice.
		                        		
		                        			Methods:
		                        			 Mouse bone marrow⁃derived dendritic cells(BMDCs)were stimulated by using CpG β⁃glucan nanoparticles(CNP)in vitro. The
BMDCs were divided into PBS group,NP group(without CpG nanoparticles),Lysate group(MC38 cell lysate)and CpG
group(CpG1826),which were determined for the expression of marker molecules on the surface by flow cytometry and for the
contents of interleukin⁃6(IL⁃6)and IL⁃12p40 in the culture supernatant by ELISA. The tumor lysate nano⁃vaccine was pre⁃
pared by mixing 50 mg/mL tumor lysate(MC38 cell lysate)with 200 mg/mL CNP in a volume ratio of 1∶1,with which
mice were subcutaneously immunized as Vaccine group. Vaccine group,PBS group,CNP group and Lysate group were im⁃
munized once a week,for three times in total. Mice were subcutaneously inoculated with MC38 cells,2 × 105 cells for each,
in the right lower limb 1 h after the last immunization,and measured for tumor volume once every three days to plot the
tumor growth curve. The ratios of CD3+ CD4+ T and CD3+ CD8+ T cells in the blood were analyzed by flow cytometry and the
levels of tumor necrosis factor⁃α(TNF⁃α)and interferon γ(IFNγ)in the blood and spleen of mice were determined by
ELISA.
		                        		
		                        			Results:
		                        			 CNP effectively increased the expression of CD11c+ CD80+,CD11c+ CD86+,CD11c+ MHC⁃Ⅱ+ and the secretion of IL⁃6 and IL⁃12p40 in BMDCs in vitro,which were significantly higher than those in other 4 groups(t = 4. 3 ~
46. 2,each P < 0. 05). Compared with that of the other three groups,the tumor volume of mice in Vaccine group decreased
significantly(t =2.6~3.4,eachP <0. 05);TherewasnosignificantdifferenceinCD3+ CD8+ TandCD3+ CD8+ Tcellratios(t =
0.5~ 1. 9,each P > 0. 05);The content of IFNγ in blood increased significantly(t = 3. 8 ~ 4. 6,P < 0. 05),while thatof
TNF⁃α showed no significant difference(t = 0. 4 ~ 2. 0,each P > 0. 05);However,the contents of IFN γ and TNF⁃α in
spleen increased significantly(t = 6. 3 ~ 13. 0,each P < 0. 001).
		                        		
		                        			Conclusion
		                        			The prepared nano⁃vaccine of tumor lysate
improvedtheimmune level in mice and effectively inhibited the growth of colon carcinoma.
		                        		
		                        		
		                        		
		                        	
5.Single-nucleus transcriptomics reveals a gatekeeper role for FOXP1 in primate cardiac aging.
Yiyuan ZHANG ; Yandong ZHENG ; Si WANG ; Yanling FAN ; Yanxia YE ; Yaobin JING ; Zunpeng LIU ; Shanshan YANG ; Muzhao XIONG ; Kuan YANG ; Jinghao HU ; Shanshan CHE ; Qun CHU ; Moshi SONG ; Guang-Hui LIU ; Weiqi ZHANG ; Shuai MA ; Jing QU
Protein & Cell 2023;14(4):279-293
		                        		
		                        			
		                        			Aging poses a major risk factor for cardiovascular diseases, the leading cause of death in the aged population. However, the cell type-specific changes underlying cardiac aging are far from being clear. Here, we performed single-nucleus RNA-sequencing analysis of left ventricles from young and aged cynomolgus monkeys to define cell composition changes and transcriptomic alterations across different cell types associated with age. We found that aged cardiomyocytes underwent a dramatic loss in cell numbers and profound fluctuations in transcriptional profiles. Via transcription regulatory network analysis, we identified FOXP1, a core transcription factor in organ development, as a key downregulated factor in aged cardiomyocytes, concomitant with the dysregulation of FOXP1 target genes associated with heart function and cardiac diseases. Consistently, the deficiency of FOXP1 led to hypertrophic and senescent phenotypes in human embryonic stem cell-derived cardiomyocytes. Altogether, our findings depict the cellular and molecular landscape of ventricular aging at the single-cell resolution, and identify drivers for primate cardiac aging and potential targets for intervention against cardiac aging and associated diseases.
		                        		
		                        		
		                        		
		                        			Aged
		                        			;
		                        		
		                        			Animals
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Aging/genetics*
		                        			;
		                        		
		                        			Forkhead Transcription Factors/metabolism*
		                        			;
		                        		
		                        			Myocytes, Cardiac/metabolism*
		                        			;
		                        		
		                        			Primates/metabolism*
		                        			;
		                        		
		                        			Repressor Proteins/metabolism*
		                        			;
		                        		
		                        			Transcriptome
		                        			;
		                        		
		                        			Macaca fascicularis/metabolism*
		                        			
		                        		
		                        	
6.A case of Allgrove syndrome with achalasia of cardia as its first clinical phenotype caused by a new mutation of AAAS gene.
Li Ya XIONG ; Pei Yu CHEN ; Jing XIE ; Lu REN ; Hong Li WANG ; Yang CHENG ; Pei Qun WU ; Hui Wen LI ; Si Tang GONG ; Lan Lan GENG
Chinese Journal of Pediatrics 2023;61(7):648-650
7.Anticancer Activity of Diosgenin and Its Molecular Mechanism.
Qun-Li REN ; Qian WANG ; Xin-Qun ZHANG ; Miao WANG ; Huan HU ; Jun-Jie TANG ; Xiong-Tong YANG ; Ying-Hui RAN ; Huan-Huan LIU ; Zhi-Xing SONG ; Jian-Guo LIU ; Xiao-Lan LI
Chinese journal of integrative medicine 2023;29(8):738-749
		                        		
		                        			
		                        			Diosgenin, a steroidal sapogenin, obtained from Trigonella foenum-graecum, Dioscorea, and Rhizoma polgonati, has shown high potential and interest in the treatment of various cancers such as oral squamous cell carcinoma, laryngeal cancer, esophageal cancer, liver cancer, gastric cancer, lung cancer, cervical cancer, prostate cancer, glioma, and leukemia. This article aims to provide an overview of the in vivo, in vitro, and clinical studies reporting the diosgenin's anticancer effects. Preclinical studies have shown promising effects of diosgenin on inhibiting tumor cell proliferation and growth, promoting apoptosis, inducing differentiation and autophagy, inhibiting tumor cell metastasis and invasion, blocking cell cycle, regulating immunity and improving gut microbiome. Clinical investigations have revealed clinical dosage and safety property of diosgenin. Furthermore, in order to improve the biological activity and bioavailability of diosgenin, this review focuses on the development of diosgenin nano drug carriers, combined drugs and the diosgenin derivatives. However, further designed trials are needed to unravel the diosgenin's deficiencies in clinical application.
		                        		
		                        		
		                        		
		                        			Male
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Carcinoma, Squamous Cell/drug therapy*
		                        			;
		                        		
		                        			Diosgenin/metabolism*
		                        			;
		                        		
		                        			Mouth Neoplasms/drug therapy*
		                        			;
		                        		
		                        			Apoptosis
		                        			;
		                        		
		                        			Prostatic Neoplasms/drug therapy*
		                        			
		                        		
		                        	
8. Daidzein affects proliferation and apoptosis in non-small cell lung cancer cells:role of p53 signaling pathway
Ting LUO ; Shi-Qun YU ; Jin OU-YANG ; Ting LUO ; Shi-Qun YU ; Jin OU-YANG ; Deng-Gang FU ; Xiao-Wei XIONG ; Shao-Xin HUANG ; Xin WANG ; Xiao-Bo WANG ; You PENG ; Cheng-Quan CHENG
Chinese Pharmacological Bulletin 2023;39(3):431-438
		                        		
		                        			
		                        			 Aim To investigate the effects of daidzeinDD on the proliferation and apoptosis of non-small cell lung cancer cells,with a focus on the possible role of the p53 signaling pathway in this regard. Methods CCK-8 method and flow cytometry were used to detect the effects of soy isoflavone crude extract and DD on the viability and apoptosis of HELF and H1299 cells. Gene microarray was used to detect the changes in gene expression after treatment of H1299 cells with DD. GSEA and differential analysis were used to screen the major pathways and key genes. RT-qPCR and Western blot were performed to verify the differences in mRNA and protein expression of key genesp53 and CASP9 in the major pathways. After p53 inhibitor Pifithrin-α inhibited the expression of p53,the effect of DD on p53 mRNA and protein expression levels was examined,and the proliferative effect on H1299 cells was observed. Results Soy isoflavone crude extract and DD promoted proliferation and inhibited apoptosis of normal lung cells and inhibited proliferation and promoted apoptosis of lung cancer cells. p53 signaling pathway was significantly enriched in the DD-treated groupNES=1.78,P=0.000,and the expressions of p53 and CASP9 genes were found to be significantly up-regulated in the treated group. Compared with the control group,mRNA expression of CASP9 and p53 significantly increased in both HELF and H1299 cells treated with DDP<0.05,and p53 protein expression also increased in HELF cellsP<0.05. After inhibition of p53 expression,DD significantly increased the mRNA expression of p53 in H1299 and HELF cellsP<0.05 and also markedly increased the expression of p53 protein in H1299 cellsP<0.05,and it was observed that DD inhibited the proliferation of lung cancer cells. Conclusions DD inhibits the proliferation and promotes the apoptosis of lung cancer H1299 cells,and the mechanism mainly involves the p53 signaling pathway. 
		                        		
		                        		
		                        		
		                        	
9.Cidan Capsule in Combination with Adjuvant Transarterial Chemoembolization Reduces Recurrence Rate after Curative Resection of Hepatocellular Carcinoma: A Multicenter, Randomized Controlled Trial.
Dong-Hai ZHENG ; Jia-Mei YANG ; Jian-Xiong WU ; Shu-Qun CHENG ; Shao-Geng ZHANG ; Dong WU ; Ai-Jun LI ; Xiao-Hui FU ; Xun LI ; Fu-Chen QI ; Wei-Hong DUAN ; Jun-Hui CHEN ; Zhi-Ying YANG ; Lu LIANG ; Jin-Xiong ZENG ; Wei-da ZHENG ; Meng-Chao WU
Chinese journal of integrative medicine 2023;29(1):3-9
		                        		
		                        			OBJECTIVE:
		                        			To evaluate the efficacy and safety of Cidan Capsule combined with adjuvant transarterial chemoembolization (TACE) in patients with a high risk of early recurrence after curative resection of hepatocellular carcinoma (HCC).
		                        		
		                        			METHODS:
		                        			A multicenter, randomized controlled trial was conducted in patients with high-risk recurrence factors after curative resection of HCC from 9 medical centers between July 2014 and July 2018. Totally 249 patients were randomly assigned to TACE with or without Cidan Capsule administration groups by stratified block in a 1:1 ratio. Postoperative adjuvant TACE was given 4-5 weeks after hepatic resection in both groups. Additionally, 125 patients in the TACE plus Cidan group were administrated Cidan Capsule (0.27 g/capsule, 5 capsules every time, 4 times a day) for 6 months with a 24-month follow-up. Primary endpoints included disease-free survival (DFS) and tumor recurrence rate (TRR). Secondary endpoint was overall survival (OS). Any drug-related adverse events (AEs) were observed and recorded.
		                        		
		                        			RESULTS:
		                        			As the data cutoff in July 9th, 2018, the median DFS was not reached in the TACE plus Cidan group and 234.0 days in the TACE group (hazard ratio, 0.420, 95% confidence interval, 0.290-0.608; P<0.01). The 1- and 2-year TRR in the TACE plus Cidan and TACE groups were 31.5%, 37.1%, and 60.8%, 63.4%, respectively (P<0.01). Median OS was not reached in both groups. The 1- and 2-year OS rates in TACE plus Cidan and TACE groups were 98.4%, 98.4%, and 89.5%, 87.9%, respectively (P<0.05). The most common grade 3-4 AEs included fatigue, abdominal pain, lumbar pain, and nausea. One serious AE was reported in 1 patient in the TACE plus Cidan group, the death was due to retroperitoneal mass hemorrhage and hemorrhagic shock, and was not related to study drug.
		                        		
		                        			CONCLUSIONS
		                        			Cidan Capsule in combination with TACE can reduce the incidence of early recurrence in HCC patients at high-risk of recurrence after radical hepatectomy and may be an appropriate option in postoperative anti-recurrence treatment. (Registration No. NCT02253511).
		                        		
		                        		
		                        		
		                        	
10.Three dimensional nephrometry system for partial nephrectomy: Our initial exploration.
Xin Fei LI ; Yi Ji PENG ; Xiao Teng YU ; Sheng Wei XIONG ; Si Da CHENG ; Guang Pu DING ; Kun Lin YANG ; Qi TANG ; Yue MI ; Jing Yun WU ; Peng ZHANG ; Jia Xin XIE ; Han HAO ; He WANG ; Jian Xing QIU ; Jian YANG ; Xue Song LI ; Li Qun ZHOU
Journal of Peking University(Health Sciences) 2021;53(3):613-622
		                        		
		                        			OBJECTIVE:
		                        			To construct a preoperative evaluation system for partial nephrectomy using CT three-dimensional visualization technology and to explore its practical value.
		                        		
		                        			METHODS:
		                        			The clinical data of the patients who underwent partial nephrectomy for renal tumors in Department of Urology, Peking University First Hospital were collected retrospectively. At the same time, the homogenized standard data of patients who underwent partial nephrectomy for renal tumors were collected in 16 clinical centers in China. The CT three-dimensional visualization system was applied (IPS system, Yorktal) to evaluate tumor anatomy, blood supply, perirenal fat and other information. The parameters were summarized to build a three-dimensional nephrometry system, on the basis of which virtual surgery design and intraoperative navigation were completed.
		                        		
		                        			RESULTS:
		                        			A three-dimensional visualization image was established based on the enhanced CT urography. The nephrometry system included the longest diameter and volume of the tumor, proportion volume of tumor invading the parenchyma, maximum depth of the tumor invading the parenchyma, contact surface area, flatness of the tumor surface, renal segment where the tumor was located, vascular variation, and perirenal fat. The average two-dimensional diameter of the tumor was (2.78±1.43) cm, the average three-dimensional maximum diameter was (3.09±1.35) cm, and the average postoperative pathological size was (3.01±1.38) cm. The maximum tumor diameter in the three-dimensional image was significantly related to the prolonged renal artery clamping time and intra-operative blood loss (r=0.502, P=0.020; r=0.403, P=0.046). The three-dimensional and pathological tumor volume were (25.7±48.4) cm3 and (33.0±36.4) cm3, respectively (P=0.229). The tumor volume was significantly related to the intraoperative blood loss (r=0.660, P < 0.001). The proportion volume of the tumor invading into renal parenchyma was significantly related to the prolongation of renal artery clamping and the occurrence of postoperative complications (r=0.410, P=0.041; r=0.587, P=0.005). The tumor contact surface area and the presence of vascular variation did not show correlation with the perioperative data and postoperative complications. While the preoperative evaluation was completed, the reconstructed three-dimensional image could be zoomed, rotated, combined display, color adjustment, transparency, and simulated cutting on the Touch Viewer system. The process generally consisted of showing or hiding the tissue, adjusting the transparency of the interested area, rotating and zooming the image to match the position of the surgical patient. Together, these functions met the requirements of preoperative virtual surgery plan and intraoperative auxiliary navigation.
		                        		
		                        			CONCLUSION
		                        			Three-dimensional images can provide a more intuitive anatomical structure. The CT three-dimensional visua-lization system clearly displays tumor anatomical parameters, blood supply and perirenal fat. The three-dimensional nephrometry system for renal tumors can help predict the difficulty of partial nephrectomy and perioperative complications. Importing the reconstructed three-dimensional visualization image into the specified program or robot operating system can complete virtual surgery and intraoperative navigation, helping the surgeon to better grasp the surgical process. The indexes included in the nephrometry system and the score weights of each index need to be confirmed and perfected by multi-center study with large samples.
		                        		
		                        		
		                        		
		                        			China
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Kidney/surgery*
		                        			;
		                        		
		                        			Kidney Neoplasms/surgery*
		                        			;
		                        		
		                        			Laparoscopy
		                        			;
		                        		
		                        			Nephrectomy
		                        			;
		                        		
		                        			Retrospective Studies
		                        			
		                        		
		                        	
            

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