1.Observation and nursing of urokinase perfusion and drainage in the treatment of patients with hypertension cerebral hemoorrhage broken into ventricles
Chinese Journal of Practical Nursing 2008;24(24):31-33
Objective To explore the clinical effectiveness of urokinase perfusion and drainage in patients with hypertension cerebral hemorrhage broken into ventricles.Methods Patients with hypertension cerebral hemorrhage broken into ventricles(35 cases)underwent urokinase perfusion and drainage.Clinical effect was observed and the nursing point was summarized.Results Of the 35 patients,20 cases acquired good recovery,13 cases were mildly disabled,2 case were severely disabled,no death occurred.The complications mostly consisted of secondary hemorrhage,infection,disfunction.Conclusions The early lateral ventricle drilling operation,postoperative urokinase perfusion and drainage,active complications prophylaxis and treatment,rehabilitation training can reduce mortality and improve the quality of patients' life.
2.Biological characteristics of bone marrow-derived mesenchymal stem cells cultured by density gradient centrifugation combined with adherence in adult rats
Yuxia YANG ; Jianliang ZHENG ; Ping ZHANG ; Jianxian LIN ; Wenxin ZHANG
Chinese Journal of Tissue Engineering Research 2007;11(3):583-586
BACKGROUND: It is important to study the methods of culturing bone marrow-derived mesenchymal stem cells (MSCs) to obtain a great amount of high purity MSCs for applying ocular tissues constructed by tissue engineering technique to treat eye diseases.OBJECTTVE: To separate and culture in vitro MSCs from bone marrow of the adult rats by density gradient centrifugation combined with adherence culture, and observe the growing characteristics and the possibility of mass multiplication.DESIGN: A completely randomized grouping design/repetitive measuring experiment.SETTING: Pathological laboratory, Zhongshan Ophthalmic Center, Sun Yat-sen University.MATERIALS: Four six-week-old SD rats about 250 g, grade Ⅱ of cleaning, were provided by the Animal Center of Sun Yat-sen University [certificate number: SCSK(Yue)2004/0011], about 250 g each rat and there was no limit to the sex. The main reagents and instruments included low sugar Dulbecco modified Eagle culture medium (DMEM/F12, American Gibco Corporation), trypsin (fetal bovine serum (FBS, Hangzhou Sijiqing Bio-Engineering Material Research Institute), American Gibco Corporation), disodium edetate, lymphocyte separating medium, fibronectin, CD44, CD34, CD31 monoclonal antibodies, two-step-method kit for immunohistochemistry (Beijing Zhong shan Biotechnology Corporation).METHODS: This experiment was conducted at the Key laboratory of Ophthalmology (Sun Yat-sen University), Ministry of ethanol (750 g/L) for 10 minutes. Under aseptic condition, the medullaris cavitas was exposed, the syringe containing application m edium was directly punctured into the femoral cavity, the cells in the medullaris cavitas were washed out with the culture medium containing heparin and taken as the cell suspension. The bone marrow-derived MSCs were separated and purified by density gradient centrifugation combined with adherence culture, and the growing conditions of the wells. When the cells had generally connected with each other, they were fixed with methanol or dimethy ketone in situ for 10 minutes, and then hematoxylin eosin (HE) staining or immunohistochemical staining. Antibodies against fiinoculated to 96-well culture plate by a cell density of 4.25×107/L, with 200 μL every well; then put the culture plate into culture box. Then from the next day to the sixth day, 5 g/L MTT solution was added into two rows (20 μL every well) every day, continuously cultured for 4 hours, then the supernatant was removed, and 200 μL DMSO was added to each well, agitated for 5 minutes, then detected the absorbance (A) values at 570 nm wave length, and a growth curve was drawn.branes were clear and the cell bodies were lucent. Being cultured for 2 days, there appeared adherent cells. 3 days later,most of the adherent cells extended and appeared to be in polygon, star or long-shuttle shapes. 4 days later, the cells showed to be in division growth stage; and about 12 days later, the cell clones were connected to each other, appearing curve of subcultured MSCs was in S shape. Cells began growing fast on the 2nd day after being passaged, and they entered the growth period for 3-4 days followed by saturation period, and then cells stopped growing.CONCLUSION: It is a simple and practical method to separate MSCs from the bone marrow of adult rats by means of density gradient centrifugation and adherence. MSCs can greatly proliferate in vitro and offer seed cells for the application of tissue engineering technique to treat eye diseases.
3.Laparoscopic spleen-preserving hilar lymph nodes dissection based on splenic hilar vascular anatomy
Chaohui ZHENG ; Changming HUANG ; Ping LI ; Jianwei XIE ; Jiabin WANG ; Jianxian LIN ; Jun LU
Chinese Journal of Digestive Surgery 2012;11(3):215-219
ObjectiveTo investigate the efficacy of laparoscopic spleen-preserving hilar lymph nodes dissection based on splenic hilar vascular anatomy.MethodsFrom July 2010 to March 2011,the clinical data of 39 patients with advanced proximal gastric cancer who underwent laparoscopic spleen-preserving hilar lymph nodes dissection at the Union Hospital of Fujian Medical University were retrospectively analyzed.Different types of vascular anatomy were analyzed,and different methods of lymph node dissection in the splenic hilus were adopted accordingly.ResultsThe operation was successfully performed on all the patients,with no conversion to open surgery or splenectomy due to splenic vascular or parenchyma injury.There were 4 types of splenic artery running,including type Ⅰ (25 patients),type Ⅱ (8 patients),type Ⅲ (4 patients) and type Ⅳ (2 patients).There were 2 types of the end branches of splenic artery,including concentrated type (28 patients) and dispersion type (11 patients).The splenic lobial vessels of all the patients were anatomically classified and divided into 4 types,including a single branch of splenic lobial vessels in 3 patients,2 branches in 24 patients,3 branches in 11 patients and multibranches in 1 patient.The mean number of short gastric vessels was 3.2 ± 1.4 (range,2-6).The time for dissection of the lymph nodes in the splenic hilum,number of lymph nodes dissected in the splenic hilum,volume of operative blood loss,duration of hospital stay and incidence of complications were ( 30 ±7)minutes,2.8 ±2.1,(20 ±7)ml (range,0-55 ml),(10 ± 1) days and 10% (4/39).All patients were followed up until March,2012. One patient had hepatic metastasis,and no patient died postoperatively.ConclusionFamiliar with the variation of splenic hllar vascular anatomy is helpful in mastering and promoting laparoscopic spleen-preserving hilar lymph nodes dissection.
4.Influence of Shenmai injection on immune function in the treatment of locally advanced non-small cell lung cancer patients with concurrent chemoradiotherapy
Yiliang MENG ; Xiaohua LI ; Guangyou HUANG ; Chengle HUANG ; Shengwu HUANG ; Jianxian CHEN ; Xuesong ZHENG ; Ganque DENG
Chinese Journal of Primary Medicine and Pharmacy 2012;(23):3531-3532
Objective To observe the effect of Shenmai injection combined concurrent chemoradiotherapy on immune function in patients with locally advanced non-small cell lung cancer.Methods A total of 80 patients with locally advanced non-small cell lung cancer were randomly divided into treatment group and control group.In treatment group,40 patients received simultaneous three-dimensional conformal radiotherapy combined with TP(docetaxel+cisplatin)chemotherapy,while given Shenmai injection in the process of concurrent chemoradiotherapy.In control group,40 patients only received chemoradiotherapy.The changes of T cell subsets were observed between the two groups.Results It showed no significant differences in percentages of CD+3,CD+4,CD+16CD+56and CD+4/CD+8 ratio between two groups pre-treatment(all P>0.05).There were no significant adverse reactions occurred after received Shenmai injection in treatment group.Conclusion It play an important role in improving immune function of patients with locally advanced non-small cell lung cancer who received Shenmai injection combined concurrent chemoradiotherapy.
5.Impact of preoperative comorbidities on abdominal complications after laparoscope-assisted total gastrectomy for gastric cancer
Jiabin WANG ; Chaohui ZHENG ; Ping LI ; Jianwei XIE ; Jianxian LIN ; Jun LU ; Qiyue CHEN ; Longlong CAO ; Mi LIN ; Changming HUANG
Chinese Journal of Digestive Surgery 2017;16(3):275-280
Objective To investigate the impact of preoperative comorbidities on the abdominal complications after laparoscope-assisted total gastrectomy (LATG) for gastric cancer.Methods The retrospective casecontrol study was conducted.The clinical data of 1 657 gastric cancer patients who underwent LATG at the Fujian Medical University Union Hospital between January 2008 and December 2015 were collected.There were 175 patients with postoperative abdominal complications,including 78 without preoperative comorbidities and 97 with preoperative comorbidities (52 with 1 comorbidity,30 with 2 comorbidities and 15 with more than 3 comorbidities).Analysis method and observation indicators:(1) risk factors analysis of abdominal complications after LATG;(2) risk assessment of abdominal complications after LATG:independent influencing factors of risk factors analysis were expressed as dependent variables,alignment diagram was built and then consistency index was calculated;(3) comparisons of abdominal complications among the patients with different kinds of comorbidities after LATG;(4) multivariate analysis of abdominal complications in patients with comorbidities after LATG;(5)follow-up situations.Follow-up using outpatient examination and telephone interview was performed to detect postoperative survival of patients up to May 2016.The univariate analysis and multivariate analysis were respectively done using the chi-square test and Logistic regression model.The survival rate was calculated by the Kaplan-Meier method.Results (1) Risk factors analysis of abdominal complications after LATG:results of univariate analysis showed that age,body mass index (BMI),number of preoperative comorbidities,operation time and estimated volume of intraoperative blood loss were related factors affecting abdominal complications of patients after LATG (X2 =4.487,16.602,10.361,4.567,7.482,P<0.05).Results of multivariate analysis showed that BMI,number of preoperative comorbidities and estimated volume of intraoperative blood loss were independent factors affecting abdominal complications of patients after LATG [OR =1.966,1.204,1.423,95%confidence interval (CI):1.355-2.851,1.014-1.431,1.013-1.999,P<0.05].(2) Risk assessment of abdominal complications after LATG:BMI,number of preoperative comorbidities and estimated volume of intraoperative blood loss were expressed as dependent variables,and the alignment diagram on risk prediction of abdominal complications after LATG was built,with a consistency index of 0.703.(3) Comparisons of abdominal complications among the patients with different kinds of comorbidities after LATG:numbers of patients without comorbidity,with 1 comorbidity,2 comorbidities and ≥3 comorbidities were detected in 21,8,13,3 patients with intra-abdominal infection and 13,10,9,5 patients with anastomotic leakage and 6,3,6,2 patients with intra-abdominal bleeding,respectively,with statistically significant differences (X2 =10.677,10.436,9.245,P<0.05).(4) Multivariate analysis of abdominal complications in patients with comorbidities after LATG:BMI ≥25 kg/m2 and estimated volume of intraoperative blood loss > 82 mL were independent risk factors affecting abdominal complications of patients with preoperative comorbidities after LATG (OR =2.104,1.771,95% CI:1.307-3.387,1.146-2.738,P<0.05).(5) Follow-up situations:of 1 657 patients,1 568 were followed up for 4-99 months,with a median time of 47 months.Ninety-seven patients with preoperative comorbidities undergoing LATG had postoperative abdominal complications and were followed up.During follow-up,5-year survival rate of patients was 58.1%,and 5-year survival rate of 97 patients with preoperative comorbidities undergoing LATG and with postoperative abdominal complications was 57.4%.Conclusion Preoperative comorbidities are independent factors affecting abdominal complications of patients after LATG.
6.Experimental inhibition of corneal neovascularization by endostatin gene transfection in vivo.
Ping ZHANG ; Dezheng WU ; Jian GE ; Zhenyu ZHU ; Guanguang FENG ; Tao YUE ; Jianxian LIN ; Huling ZHENG
Chinese Medical Journal 2003;116(12):1869-1874
OBJECTIVETo investigate endostatin gene therapy of rat corneal neovascularization induced by acid cauterization.
METHODSpBlast-hEndostatin and pBlast-Mcs were identified by digestion with Nhe Iand Sal I, by PCR reaction, by sequence, and then by alignment of PCR products with the gene Bank using NCBIBLAST software. They were then purified with QIAGEN Endofree plasmid maxi kit. Rat corneal neovascularization models were made with 75% AgNO(3) and 25% KNO(3) cauterization. The treatment method was subconjunctive injection of the pBlast-hEndostatin with the control of pBlast-Mcs.
RESULTSpBlast-hEndostatin was found to contain the human endostatin gene. The rat corneal neovascularization induced by acid cauterization was significantly suppressed after subconjunctive injection of the pBlast-hEndostatin with inhibition rates of 37%, 40.2%, and 42.8% respectively on the sixth, tenth, and fifteenth day. The inhibition rate for the density of corneal neovascularization was 40%. However, no inhibition effect on the length of the neovascularization and corneal inflammatory cells was observed. Corneal neovascularization areas were positively correlated with edema and corneal opacity.
CONCLUSIONSThe plasmid of pBlast-hEndostatin contained the human endostatin gene. The rat corneal neovascularization induced by acid cauterization can be partially inhibited by subconjunctive injection of the pBlast-hEndostatin mediated by liposomes. Endostatin produced by transfected fibroblast cells directly inhibits corneal neovascularization. This is not caused by inflammatory reaction inhibition.
Animals ; Corneal Neovascularization ; pathology ; therapy ; Endostatins ; genetics ; Genetic Therapy ; methods ; Humans ; Rats ; Rats, Wistar ; Transfection
7.Impact of laparoscopic surgery on efficacy in the treatment of gastrointestinal stromal tumors in different anatomical locations.
Qingfeng CHEN ; Jianxian LIN ; Chaohui ZHENG ; Ping LI ; Jianwei XIE ; Jiabin WANG ; Jun LU ; Qiyue CHEN ; Mi LIN ; Longlong CAO ; Changming HUANG
Chinese Journal of Gastrointestinal Surgery 2016;19(11):1277-1281
OBJECTIVETo investigate the efficacy of laparoscopic surgery in the treatment of gastrointestinal stromal tumors (GIST) in different anatomical locations.
METHODSClinical data of 133 patients with primary gastric GIST undergoing laparoscopic resection at our department from January 2006 to December 2014 were retrospectively analyzed. These patients were divided into favorable site group (F group, 90 cases), including gastric fundus, anterior wall and greater curvature of gastric body, and unfavorable site group (UF group, 43 cases),including gastroesophageal junction, posterior wall and lesser curvature of gastric body,antrum and pylorus, according to the 2014 version National Comprehensive Cancer Network Clinical Guidelines. Short-term and long-term efficacy between the two groups was compared.
RESULTSThere were no significant differences between the two groups in the general clinicopathological parameters (all P>0.05). The operation time of F group and UF group was (107.3±52.3) min and (119±53.4) min respectively (P=0.21). The blood loss in F group and UF group was (35.2±34.2) ml and (35.2±31.2) ml respectively (P=1.00). In addition, there were no significant differences in time to first fluid diet, time to first flatus, postoperative hospital stay and hospitalization expenses between the two groups(all P>0.05). In F group and UF group, morbidity of postoperative complication was 6.7%(6/90) and 4.7%(2/43) respectively (P=0.72), morbidity of category I(-II( complication was 4.4%(4/90) and 2.3%(1/43) respectively (P=0.66),and morbidity of category III(-IIII( complication was 2.2%(2/90) and 2.3% (1/43) respectively (P=1.00). Median follow-up time of all the cases was 36(1 to 84) months. The 5-year overall survival rates of F group and UF group were 93.8% and 95.2% respectively, and 5-year relapse-free survival rates were 81.1% and 89.4% respectively, without significant differences(both P>0.05).
CONCLUSIONLaparoscopic operation for gastric GIST in unfavorable sites can yield similar short- and long-term outcomes compared with those in favorable sites.
Adult ; Esophagogastric Junction ; Gastrectomy ; Gastrointestinal Stromal Tumors ; surgery ; Humans ; Laparoscopy ; Length of Stay ; Neoplasm Recurrence, Local ; Operative Time ; Postoperative Complications ; Postoperative Period ; Pylorus ; Retrospective Studies ; Stomach Neoplasms ; surgery ; Survival Rate ; Treatment Outcome
8.Assessment value of preoperative platelet-lymphocyte ratio in the prognosis of patients with gastric mixed adenoneuroendocrine carcinoma.
Longlong CAO ; Jun LU ; Jianxian LIN ; Chaohui ZHENG ; Ping LI ; Jianwei XIE ; Jiabin WANG ; Qiyue CHEN ; Mi LIN ; Ruhong TU ; Changming HUANG
Chinese Journal of Gastrointestinal Surgery 2016;19(11):1252-1257
OBJECTIVETo explore the prognostic assessment value of preoperative blood platelet-lymphocyte ratio (PLR) in patients with gastric mixed adenoneuroendocrine carcinoma (gMANEC) treated with radical surgery.
METHODSClinical and pathological data of 84 gMANEC patients who underwent radical resection from 2006 to 2016 in Department of Gastric Surgery, Fujian Medical University Union Hospital were analyzed retrospectively. Receiver operating characteristic (ROC) curve analysis was performed to determine the cutoff value of the PLR for predicting prognosis. The Cox proportional hazards regression model was used to identify prognostic factors of gMANEC.
RESULTSAll the patients underwent D2 lymph node dissection, including 26 cases of distal subtotal gastrectomy and 58 cases of total gastrectomy. The postoperative pathological TNM stage system(pTNM) demonstrated that the patients of stage I(, II(, and III( were 9(10.7%), 14(16.7%), and 61(72.6%) cases, respectively. The median follow-up time was 40(3 to 96) months. The recurrence rate was 41.7%(35/84). The median time to recurrence was 10 (1 to 40) months, and 82.9%(29/35) patients experienced recurrence within the first 2 years after operation. The median overall survival time was 27(3 to 39) month, and the median recurrence-free survival time was 21 (1 to 96) months. The 1-, 3-, and 5-year overall survival(OS) rates were 87.6%, 56.6%, and 47.4%, respectively, and the 1-, 3-, and 5-year recurrence-free survival (RFS) rates were 70.5%, 50.7%, and 44.9%, respectively. The best cutoff value of the PLR for predicting prognosis was 133 through ROC curve, which categorized all the patients into low PLR group (≤133) comprising 28 patients and high PLR group (>133) comprising 56 patients. The tumor recurrence rate was significantly higher in high PLR group (50.0%, 28/56) than that in low PLR group(25.0%, 7/28)(P=0.028). The live metastasis rate was significantly higher in high PLR group(35.7%, 20/56) than that in low PLR group(10.7%, 3/28)(P=0.015). Cox regression analysis showed that only pTNM stage (P=0.003) was independent prognostic factors of OS, while both pTNM stage (P=0.000) and blood PLR (P=0.015) were independent prognostic factors of RFS.
CONCLUSIONgMANEC patients with high preoperative PLR tend to present recurrence and metastasis, especially to present live metastasis, so they should be kept under surveillance more frequently after surgery.
Blood Platelets ; Carcinoma ; Female ; Gastrectomy ; Humans ; Lymph Node Excision ; Lymphocyte Subsets ; Lymphocytes ; Male ; Middle Aged ; Neoplasm Recurrence, Local ; Neuroendocrine Tumors ; pathology ; therapy ; Prognosis ; Proportional Hazards Models ; ROC Curve ; Retrospective Studies ; Stomach Neoplasms ; pathology ; therapy
9.Efficacy evaluation of laparoscopic D2 radical gastrectomy in gastric neuroendocrine carcinoma.
Jianwei XIE ; Changming HUANG ; Chaohui ZHENG ; Ping LI ; Jiabin WANG ; Jianxian LIN ; Jun LU ; Qiyue CHEN ; Longlong CAO ; Mi LIN ; Ruhong TU
Chinese Journal of Gastrointestinal Surgery 2016;19(8):907-911
OBJECTIVETo explore the feasibility and efficacy of laparoscopic D2 radical gastrectomy in patients with gastric neuroendocrine carcinoma (GNEC).
METHODSClinical data of 84 patients with GNEC undergoing laparoscopic D2 radical gastrectomy in Union Hospital from January 2006 to December 2012 were analyzed respectively. Among these patients, 44 cases underwent laparoscopic D2 gastrectomy (LAG group) and 40 cases underwent open gastrectomy (OG group). The short- and long-term outcomes, 3-year survival and recurrence-free survival were compared between two groups.
RESULTSThe LAG group and OG group did not differ significantly in terms of clinicopathologic characteristics. All the patients completed operations successfully and no patients in the LAG group ware converted to laparotomy. The operative time was similar (P>0.05). As compared to OG group, LAG group had less intra-operative blood loss [(85±21) ml vs. (192±89) ml, P=0.003], lower ratio of transfusion [2.3%(1/44) vs. 15.0%(6/40), P=0.048], shorter time to ambulation after surgery [(2.5±1.1) days vs. (3.5±1.1) days, P=0.001], faster postoperative gastrointestinal function recovery [(2.9±1.1) days vs. (5.1±1.0) days, P=0.001], shorter time to resume soft diet [(4.1±1.2) days vs. (5.7±1.3) days, P=0.001] and shorter postoperative hospital stay [(12.0±3.4) days vs. (15.0±5.5) days, P=0.002]. No significant difference was observed in average dissected lymph node number between LAG and OG group (35.0±16.4 vs. 31.6±12.1, P=0.204). Morbidity of postoperative complication of LAG group and OG group was 11.4%(5/44) and 17.5%(7/40) respectively (P=0.422). The overall 3-year survival rate was 54.0% for all the patients, while 3-year survival rate was 56.3% in LAG group and 51.4 % in OG group (P=0.478). In addition, there was no significant difference in recurrence-free survival between the two group (33.0 months vs. 31.5 months, P=0.703).
CONCLUSIONCompared with open gastrectomy, laparoscopic D2 radical gastrectomy has the advantages of faster recovery and less blood loss, and similar short-term and long-term outcomes in treatment of patients with GNEC, thus it is a safe and feasible treatment for GNEC.
Blood Loss, Surgical ; Carcinoma, Neuroendocrine ; surgery ; Female ; Gastrectomy ; methods ; Humans ; Laparoscopy ; Laparotomy ; Length of Stay ; Lymph Node Excision ; Male ; Middle Aged ; Operative Time ; Postoperative Complications ; Postoperative Period ; Stomach Neoplasms ; surgery ; Survival Rate ; Treatment Outcome
10.Effect of unplanned reoperation on clinical efficacy and its risk factor after radical resection of gastric cancer (A report of 4 124 cases)
Ping LI ; Changming HUANG ; Chaohui ZHENG ; Jianwei XIE ; Jiabin WANG ; Jianxian LIN ; Jun LU ; Qiyue CHEN ; Longlong CAO ; Mi LIN ; Ruhong TU
Chinese Journal of Digestive Surgery 2018;17(6):564-570
Objective To explore the effect of unplanned reoperation (URO) on clinical efficacy after radical resection of gastric cancer (GC),and its causes and risk factors analysis affecting URO.Methods The retrospective case-control study was conducted.The clinicopathological data of 4 124 patients who underwent radical resection of GC in the Union Hospital of Fujian Medical University between January 2005 and December 2014 were collected.The initial operation was open or laparoscopic radical resection of GC.Observation indicators:(1) initial operation situations,results of pathologic examination and follow-up situations;(2) postoperative recovery situations;(3) causes and time interval of URO after radical resection of GC;(4) univariate analysis affecting URO after radical resection of GC;(5) multivariate analysis affecting URO after radical resection of GC.Follow-up using outpatient examination,telephone interview and Wechat was performed to detect postoperative 30-day recovery of patients.Measurement data with normal distribution were represented as (-x)±s,and comparisons between groups were done using the independent-sample t test.Count data and univariate analysis were done using the chi-square test or Fisher exact probability.Multivariate analysis was done using the logistic regression model.Results (1) Initial operation situations,results of pathologic examination and follow-up situations:① Initial operation situations of 4 124 patients,2 608 and 1 516 underwent respectively laparoscopic surgery and open surgery;2 259 and 1 865 underwent respectively total gastrectomy and distal gastrectomy.② Results of pathological examination of 4 124 patients:883,468,959 and 1 814 were respectively in T1,T2,T3 and T4a stages;1 414,571,683 and 1 456 were in N0,N1,N2 and N3 stages;1 073,825 and 2 226 were in Ⅰ,Ⅱ and Ⅲ stages.③) All the 4 124 patients were followed up within 30 days after initial operation,with a follow-up rate of 100.000%(4 124/4 124),including 52 with URO and 4 072 without URO,with a early URO rate of 1.261% (52/4 124).(2) Postoperative recovery situations:of 4 072 patients without URO,575 had postoperative complications,with an incidence of 14.121% (575/4 072);17 died after operation,with a mortality of 0.417% (17/4 072),and duration of postoperative hospital stay was (14.0±9.0) days.Of 52 patients with URO,23 had complications after reoperation,with an incidence of 44.231% (23/52);6 died after reoperation,with a mortality of 11.538% (6/52),and duration of postoperative hospital stay was (28.0± 13.0) days.There were statistically significant differences in above indicators between groups (x2=37.550,t=10.900,P<0.05).(3) Causes and time interval of URO after radical resection of GC:total time interval between initial operation and URO of 52 patients was (6.9±6.7)days.Causes of URO of 52 patients:23 (2 deaths),7,6 (2 deaths),5,5 (1 death),3,2 and 1 (death) patients were respectively due to intraperitoneal hemorrhage,anastomotic bleeding,anastomotic leakage,intra-abdominal infection,small bowel obstruction,dehiscence of abdominal incisions,enteric perforation and pancreatic fistula,and time intervals between initial operation and URO of them were respectively (3.9±3.8)days,(0.9±_0.5)days,(7.9±4.7) days,(14.9±4.6)days,(16.4±9.9) days,(10.0±6.O)days,(6.7±5.2) days and 12.0 days.(4) Univariate analysis affecting URO after radical resection of GC:results showed that age,body mass index (BMI) and volume of intraoperative blood loss were risk factors affecting URO after radical resection of GC (x2 =5.468,7.589,5.041,P<0.05).(5) Multivariate analysis affecting URO after radical resection of GC:results showed that age > 70 years old,BMI > 25 kg/m2 and volume of intraoperative blood loss > 100 mL were independent risk factors affecting occurrence of URO after radical resection of GC (odds ratio =1.950,2.288,1.867;95% confidence interval:1.074-3.538,1.230-4.257,1.067-3.267,P<0.05).Conclusions URO can increase postoperative complications and mortality,and extend duration of hospital stay after radical resection of GC.Intraabdominal bleeding,anastomotic bleeding and anastomotic leakage are the main causes affecting occurrence of URO after radical resection of GC,and age >70 years old,BMI > 25 kg/m2 and volume of intraoperative blood loss > 100 mL are independent risk factors affecting occurrence of URO after radical resection of GC.