Objective:The aim of this study was to investigate whether the Model for end-stage liver disease-excluding international normalised ratio ( MELD-XI) score whether it can predict the prognosis of patients on veno-arterial extracorporeal membrane oxygenation support.Methods:This study was a retrospective cohort study, which retrospectively included clinical data data of patients using ECMO from January 2015 to December 2023 in Fuwai Huazhong Cardiovascular Disease Hospital. Inclusion criteria: 1. clinical patients using VA-ECMO, excluding VAV-ECMO and VV-ECMO; 2. available laboratory values of blood creatinine and total bilirubin within the first 24 hours of on-boarding; 3. complete basic information of the patients; and 4. age greater than 18 years. Exclusion criteria: 1. patients whose family members abandoned the treatment due to economic reasons; 2. on-boarding time less than 24 hours; 3. patients with incomplete clinical information or patients who did not have a detailed record of general information on VA-ECMO. Using X-tile software, they were divided into MELD-XI score ≤13.9 and MELD-XI score >13.9 groups, and variables with P < 0.05 were included in the binary logistic regression model after using univariate analysis. Results:: Univariate analysis of 940 patients revealed that the MELD-XI score ≤13.9 group compared with the MELD-XI score >13.9 group had a significant difference in the success of machine withdrawal ( χ2=31.812, P<0.001), death while the machine was in operation ( χ2=52.453, P<0.001), death after machine withdrawal ( χ2=4.210, P=0.040), cerebral thrombotic complications ( χ2=4.319, P=0.038), lower extremity thrombotic complications ( χ2=8.789, P=0.003), and CRRT use ( χ2=15.648, P<0.001), length of boarding (Z=-17.786, P<0.001), length of hospital stay (Z=-17.503, P<0.001), and length of ICU stay ( Z=-18.790, P<0.001) were significantly different. Multifactorial binary logistic regression showed that successful machine withdrawal ( OR=2.078, 95% CI:1.158-3.731, P=0.014), death while the machine was running ( OR=0.271, 95% CI:0.144-0.512, P<0.001), CRRT use ( OR=3.227, 95% CI:1.659-6.474, P=0.001), length of hospital stay ( OR=1.138, 95% CI:1.107-1.171, P<0.001), length of boarding ( OR=1.035, 95% CI:1.027-1.043, P<0.001), ICU stay ( OR=1.365, 95% CI:1.278-1.458, P < 0.001) are independent influencing factor for VA-ECMO support patients. Kaplan-Meier curve analysis showed that both in-hospital mortality ( HR=2.167, 95% CI:1.508-3.114, P<0.001) and withdrawal success ( HR=5.353, 95% CI:4.023-7.121, P<0.001) were significantly lower in the MELD-XI score ≤13.9 group than in the MELD-XI score >13.9 group. Conclusions:The MELD-XI score can predict the prognosis of VA-ECMO-supported patients and help clinician doctors to make complex clinical decisions.

Objective:To investigate the effect of extracorporeal membrane oxygenation (ECMO) in assisting neonates with complex congenital heart diseases (CHD) and the survival rate of the patients.Methods:A retrospective case-control study was made on 22 newborns with complex CHD assisted by ECMO during the perioperative period in Fuwai Central China Cardiovascular Hospital from January 2018 to June 2024.There were 19 males and 3 females in the newborns included, with an average age of (10.4±8.7) days (range: 1-26 days) and an average weight of (3.1±0.3) kg.Complex CHD included total anomalous pulmonary venous connection in 9 cases (40.9%), interrupted aortic arch and coarctation in 8 cases (36.4%), transposition of great arteries in 3 cases (13.6%), double outlet right ventricle in 1 case (4.5%) and cardiac tumor in 1 case (4.5%).The patients were divided into the <5 d group, 5-12 d group, and >12 d group according to the duration of ECMO support.Data were compared using the t-test or χ2 test. Results:There were 8 cases (36.4%) successfully weaned from ECMO support and 6 cases (27.3%) survived.ECMO support was used routinely in 15 cases (68.2%), and for extracorporeal cardiopulmonary resuscitation in 7 cases (31.8%).The duration of ECMO support was (5.9±3.7) days.There were no statistically differences in age, weight, gender, disease composition, operation time, cardiopulmonary bypass time, cross-clamp time, assistant time, blood routine, liver and kidney function and other biochemical indicators, preoperative cardiac ejection fraction value, procalcitonin, C-reactive protein and other infection indicators between the death group and the survival group (all P>0.05).The highest lactate values 24 hours before [(8.1±5.4) mmol/L] and after ECMO support [(10.5±7.1) mmol/L] in the survival group were significantly lower than those in the death group [(18.7±9.2) mmol/L, (21.3±8.6) mmol/L] ( t=2.606, P=0.018; t=2.729, P=0.013).It was found that the survival rate was 0/9 (0) in the <5 d group, 6/12 (50.0%) in the 5-12 d group, and 0/1 (0) in the >12 d group.The survival rate of the 5-12 d group was the highest, which was significantly higher than that of the <5 d group ( χ2=6.300, P=0.012). Conclusions:ECMO support is an effective treatment for severe circulatory failure in neonates with complex CHD in the perioperative period.The highest lactate levels 24 hours before and after ECMO support affect the survival rate.Patients receiving 5-12 d ECMO support can achieve the highest survival rate.

Objective:To investigate the effect of extracorporeal membrane oxygenation (ECMO) in assisting neonates with complex congenital heart diseases (CHD) and the survival rate of the patients.Methods:A retrospective case-control study was made on 22 newborns with complex CHD assisted by ECMO during the perioperative period in Fuwai Central China Cardiovascular Hospital from January 2018 to June 2024.There were 19 males and 3 females in the newborns included, with an average age of (10.4±8.7) days (range: 1-26 days) and an average weight of (3.1±0.3) kg.Complex CHD included total anomalous pulmonary venous connection in 9 cases (40.9%), interrupted aortic arch and coarctation in 8 cases (36.4%), transposition of great arteries in 3 cases (13.6%), double outlet right ventricle in 1 case (4.5%) and cardiac tumor in 1 case (4.5%).The patients were divided into the <5 d group, 5-12 d group, and >12 d group according to the duration of ECMO support.Data were compared using the t-test or χ2 test. Results:There were 8 cases (36.4%) successfully weaned from ECMO support and 6 cases (27.3%) survived.ECMO support was used routinely in 15 cases (68.2%), and for extracorporeal cardiopulmonary resuscitation in 7 cases (31.8%).The duration of ECMO support was (5.9±3.7) days.There were no statistically differences in age, weight, gender, disease composition, operation time, cardiopulmonary bypass time, cross-clamp time, assistant time, blood routine, liver and kidney function and other biochemical indicators, preoperative cardiac ejection fraction value, procalcitonin, C-reactive protein and other infection indicators between the death group and the survival group (all P>0.05).The highest lactate values 24 hours before [(8.1±5.4) mmol/L] and after ECMO support [(10.5±7.1) mmol/L] in the survival group were significantly lower than those in the death group [(18.7±9.2) mmol/L, (21.3±8.6) mmol/L] ( t=2.606, P=0.018; t=2.729, P=0.013).It was found that the survival rate was 0/9 (0) in the <5 d group, 6/12 (50.0%) in the 5-12 d group, and 0/1 (0) in the >12 d group.The survival rate of the 5-12 d group was the highest, which was significantly higher than that of the <5 d group ( χ2=6.300, P=0.012). Conclusions:ECMO support is an effective treatment for severe circulatory failure in neonates with complex CHD in the perioperative period.The highest lactate levels 24 hours before and after ECMO support affect the survival rate.Patients receiving 5-12 d ECMO support can achieve the highest survival rate.

Objective:To investigate the epidemiological and clinical characteristics of Keshan disease current cases in Qingyang City, Gansu Province.Methods:Full coverage monitoring data of all Keshan disease affected villages in Qingyang City from January to December 2022 were collected from the database of the Qingyang City Center for Disease Prevention and Control. A retrospective analysis was conducted to analyze the epidemiological distribution and clinical manifestations (including electrocardiography, classification of cardiac function, chest X-ray, B-mode ultrasound of the heart, etc) of 132 current cases of Keshan disease.Results:Among the 132 current cases of Keshan disease, there were 5 cases of latent type and 127 cases of chronic type, and 25 new cases were identified in 2022; with a male-to-female ratio of 1.03 ∶ 1.00 (67 ∶ 65), a median age of 62 years (interquartile range of 12). The area with the highest number of current cases was Heshui County, with a Keshan disease incidence rate of 3.37/10 000; the lower areas were Xifeng District and Zhenyuan County, with a Keshan disease incidence rate of 0.08/10 000 and 0.03/10 000, respectively. The abnormal electrocardiogram of the current cases was mainly characterized by T-wave and/or ST-segment changes, with a total of 78 cases, accounting for 59.09% of the total cases. Heart function impairment (grade Ⅱ and above) was found in 124 cases, accounting for 93.94%. The results of B-mode ultrasound and chest X-ray examination showed that there were 107 cases of heart enlargement, accounting for 81.06% of the total cases.Conclusions:The Keshan disease current cases in Qingyang City are predominantly chronic in elderly, with a balanced gender distribution but regional distribution differences. Abnormal electrocardiogram is common in patients, and their cardiac function is often impaired. Given the persistent presence of pathogenic factors, continued monitoring is necessary to achieve early intervention and improve prognosis.

Objective:To summarize the strategy and method for the treatment of critically ill patients with self-made extracorporeal membrane oxygenation (ECMO) system.Methods:A observative study was conducted. Fifty-six patients with ECMO assisted support in Fuwai Central China Cardiovascular Disease Hospital from December 2020 to December 2021 were enrolled. According to the clinical situation of the patients and the wishes of the family, conventional ECMO package (conventional group) or self-made ECMO package (self-made group) was chosen. In the conventional group, the disposable ECMO package was used to install the machine, pre charge and exhaust the air. In the self-made group, the disposable consumables commonly used in extracorporeal circulation during cardiac surgery (including centrifugal pump heads, membrane oxygenation, tubes, connectors, etc.) were used to create a self-made ECMO system. Based on the patient's situation, personalized tube model selection and length control were carried out. The preparation time, auxiliary time, auxiliary method, total pre charge volume, free hemoglobin (FHb) levels after 2 hours of ECMO operation and operating costs, as well as changes in hemodynamics, arterial blood gas analysis, and blood indicators within 48 hours after ECMO placement in the two groups were recorded. The occurrence of adverse events related to the ECMO system during ECMO adjuvant therapy in two groups was simultaneously observed.Results:Fifty-six patients were enrolled finally, with 28 cases in the conventional group and 28 cases in the self-made group, and all successfully completed the operation of ECMO. There was no statistically significant difference in ECMO system preparation time, auxiliary time, auxiliary method, and FHb levels after 2 hours of ECMO operation between the conventional group and the self-made group [preparation time (minutes): 13±4 vs. 15±5, auxiliary time (hours): 287±34 vs. 276±42, veno-arterial ECMO (cases): 22 vs. 24, veno-venous ECMO (cases): 6 vs. 4, FHb after 2 hours of ECMO operation (mg/L): 226±67 vs. 253±78, all P > 0.05]. However, the total pre charge volume and operating costs in the self-made group were significantly lower than those in the conventional group [total pre charge volume (mL): 420±25 vs. 650±10, operating costs (ten thousand yuan): 3.8±0.4 vs. 6.7±0.3, both P < 0.01]. The hemodynamics, arterial blood gas analysis, and blood indicators of patients in the two groups were relatively stable within 48 hours after ECMO operation, and most of the indicators between the two groups showed no statistically significant differences. The hemoglobin (Hb) levels at 12, 24, and 48 hours after the machine transfer in the self-made group were significantly higher than those in the conventional group (g/L: 128.5±23.7 vs. 117.5±24.3 at 12 hours, 121.3±31.3 vs. 109.6±33.2 at 24 hours, 118.5±20.1 vs. 105.2±25.7 at 48 hours, all P < 0.05). Both groups of patients did not experience any adverse event related to the ECMO system, such as membrane pulmonary infiltration, joint detachment, and massive hemolysis, during the ECMO assisted treatment process. Conclusion:When implementing ECMO for critically ill patients in clinical practice, a self-made ECMO system with disposable consumables commonly used in extracorporeal circulation during cardiac surgery can be used for cardiopulmonary function assistance support, thereby saving patients medical costs and alleviating their dependence on disposable ECMO package in clinical practice.

Objective:To investigate the epidemiological and clinical characteristics of Keshan disease current cases in Qingyang City, Gansu Province.Methods:Full coverage monitoring data of all Keshan disease affected villages in Qingyang City from January to December 2022 were collected from the database of the Qingyang City Center for Disease Prevention and Control. A retrospective analysis was conducted to analyze the epidemiological distribution and clinical manifestations (including electrocardiography, classification of cardiac function, chest X-ray, B-mode ultrasound of the heart, etc) of 132 current cases of Keshan disease.Results:Among the 132 current cases of Keshan disease, there were 5 cases of latent type and 127 cases of chronic type, and 25 new cases were identified in 2022; with a male-to-female ratio of 1.03 ∶ 1.00 (67 ∶ 65), a median age of 62 years (interquartile range of 12). The area with the highest number of current cases was Heshui County, with a Keshan disease incidence rate of 3.37/10 000; the lower areas were Xifeng District and Zhenyuan County, with a Keshan disease incidence rate of 0.08/10 000 and 0.03/10 000, respectively. The abnormal electrocardiogram of the current cases was mainly characterized by T-wave and/or ST-segment changes, with a total of 78 cases, accounting for 59.09% of the total cases. Heart function impairment (grade Ⅱ and above) was found in 124 cases, accounting for 93.94%. The results of B-mode ultrasound and chest X-ray examination showed that there were 107 cases of heart enlargement, accounting for 81.06% of the total cases.Conclusions:The Keshan disease current cases in Qingyang City are predominantly chronic in elderly, with a balanced gender distribution but regional distribution differences. Abnormal electrocardiogram is common in patients, and their cardiac function is often impaired. Given the persistent presence of pathogenic factors, continued monitoring is necessary to achieve early intervention and improve prognosis.

Objective To quantify the setup errors for the different anatomical sites of patients who received intensity-modulated radiotherapy (IMRT) with linear accelerator on-board kilovolt fan beam CT(kV-FBCT) as non-isocenter IGRT and megavolt cone beam CT (MV-CBCT) as isocenter IGRT. Methods A retrospective analysis was performedon 70 patients who underwent radiotherapy, kV-FBCT, and/or MV-CBCT scans after each routine setup prior to IMRT. The average displacement (M), systematic error (Σ), and random error (б) at different treatment sites in the left-right, anterior-posterior, and cranial-caudal directions were calculated according to the individual displacements. The formula 2.5Σ+0.7б was used to estimate the PTV margin in respective direction. For each single patient, the root mean square in three directions was used as 3D displacement. Results A total of 1130 displacements were recorded in the 70 patients. The PTV margin was estimated to be 1.9-3.1 mm in head and neck cancer, 2.8-5.1 mm in thoracic cancer, 4.6-5.1 mm in breast cancer, 3.0-5.5 mm in upper abdominal cancer, and 3.5-6.8 mm in pelvic tumor. For the 3D mean displacements, the head and neck, thoracic, breast, upper abdominal, and pelvic cancer were 2.4±1.0, 4.0±1.6, 4.1±2.0, 4.6±2.1, and 4.6±2.1 mm, respectively. The average 3D displacement obtained by kV-FBCT and MV-CBCT were 4.1 and 3.4 mm, respectively (P=0.212). Conclusion The quantitative setup-error data can be obtained using linear accelerator on-board FBCT, and the non-isocenter IGRT induced set-up error cannot be negligible.

Objective:To explore the risk factors of death in patients receiving ECMO treatment and to construct a nomogram prediction model.Methods:The clinical data of 412 consecutive patients with acute heart and (or) pulmonary failure who received ECMO treatment between April 2018 and June 2022 were retrospectively included.According to the patients' in-hospital survival, univariate correlation analysis was used to select risk factor variables, and then Lasso regression was used to screen all variables, combined with common variables, combined with clinical practice, plotted a nomogram to predict the probability of early mortality, using the area under the ROC curve (AUC), Harrell C index and calibration curve were used to evaluate and internally validate the performance of the model.Decision curve analysis was applied to assess its clinical utility.Results:Cerebral infarction, diabetes, history of cardiopulmonary resuscitation, neurological complications, acute kidney injury, lactate, hemoglobin, albumin, and platelet count were risk factors for death in patients receiving ECMO ( P<0.05).At the same time, according to the actual situation and difference variables, we constructed a nomogram with high reliability to predict the probability of death. Conclusions:The study identified the risk factors of death in patients receiving ECMO, successfully constructed and validated a nomogram prediction model, and provided a simple and reliable tool for ECMO death prediction, which is of great significance for individualized treatment of patients.

Objective:To investigate the role of miR-146a in the pathogenesis of systemic juvenile idiopathic arthritis (sJIA) and its clinical significance.Methods:This article is a prospective clinical cohort study.Twenty-six patients with sJIA (14 cases of initial active group and 12 cases of stable group), 15 patients with multijoint juvenile idiopathic arthritis (JIA) and 15 patients with oligojoint JIA diagnosed in the Department of Rheumatology and Immunology of Anhui Provincial Children′s Hospital from June 2018 to December 2020 were enrolled.Twenty healthy controls from the out-patient clinic were also recruited.The expression level of miR-146a in peripheral blood mononuclear cells (PBMCs) of research objects was detected by real-time fluorescence quantitative polymerase reaction (qPCR), and the serum levels of interleukin (IL) - 6, tumor necrosis factor (TNF) - α and IL-1β in sJIA patients and healthy controls were detected by enzyme-linked immunosorbent assay.The expression levels of miR-146a in PBMCs and cytokines among different groups were compared by analysis of variance. Pearson correlation analysis was used to analyze the correlation of the relative expression level of miR-146a in PBMCs with clinical inflammatory indexes and serum cytokines in sJIA patients. Results:(1) The expression level of miR-146a in PBMCs of early sJIA patients was significantly higher than that in the multijoint JIA group and oligojoint JIA group (8.77±3.15 vs.4.40±1.59, 2.55±1.15, t=6.27, 14.23; all P<0.05). The expression level of miR-146a in PBMCs of sJIA active patients was significantly higher than that in sJIA stable patients (8.77±3.15 vs.3.63±1.37, t=10.27, P<0.05). There was no significant difference in the expression level of miR-146a between the sJIA stable group and healthy control group ( P>0.05). (2) The expression levels of IL-1β, IL-6 and TNF-α were significantly higher in sJIA active patients group than those in sJIA stable group[(58.56±17.47) ng/L vs.(26.32±10.54) ng/L, (73.72±11.16) ng/L vs.(23.20±9.12) ng/L, (70.93±19.97) ng/L vs.(24.25±9.49) ng/L, all P<0.05]. There was no significant difference in the expression levels of IL-1β, IL-6 and TNF-α between the sJIA stable group and healthy control group(all P>0.05). (3)The expression of miR-146a in PBMCs of sJIA patients was positively correlated with serum ferritin levels, platelets, erythrocyte sedimentation rates, C-reactive proteins, IL-1β, IL-6 and TNF-α( r=0.542, 0.433, 0.329, 0.306, 0.333, 0.342, 0.319, all P<0.05). Conclusions:miR-146a may be involved in the inflammatory process of sJIA disease.miR-146a can well distinguish sJIA from multijoint JIA and oligojoint JIA.TNF-α, IL-1β and IL-6 are involved in sJIA inflammatory responses.

Objective:To investigate the epidemiological characteristics, diagnosis, treat-ment and prognosis of gallbladder cancer in China from 2010 to 2017.Methods:The single disease retrospective registration cohort study was conducted. Based on the concept of the real world study, the clinicopathological data, from multicenter retrospective clinical data database of gallbladder cancer of Chinese Research Group of Gallbladder Cancer (CRGGC), of 6 159 patients with gallbladder cancer who were admitted to 42 hospitals from January 2010 to December 2017 were collected. Observation indicators: (1) case resources; (2) age and sex distribution; (3) diagnosis; (4) surgical treatment and prognosis; (5) multimodality therapy and prognosis. The follow-up data of the 42 hospitals were collected and analyzed by the CRGGC. The main outcome indicator was the overall survival time from date of operation for surgical patients or date of diagnosis for non-surgical patients to the end of outcome event or the last follow-up. Measurement data with normal distribu-tion were represented as Mean±SD, and comparison between groups was conducted using the t test. Measurement data with skewed distribution were represented as M( Q1, Q3) or M(range), and com-parison between groups was conducted using the U test. Count data were described as absolute numbers or percentages, and comparison between groups was conducted using the chi-square test. Univariate analysis was performed using the Logistic forced regression model, and variables with P<0.1 in the univariate analysis were included for multivariate analysis. Multivariate analysis was performed using the Logistic stepwise regression model. The life table method was used to calculate survival rates and the Kaplan-Meier method was used to draw survival curves. Log-rank test was used for survival analysis. Results:(1) Case resources: of the 42 hospitals, there were 35 class A of tertiary hospitals and 7 class B of tertiary hospitals, 16 hospitals with high admission of gallbladder cancer and 26 hospitals with low admission of gallbladder cancer, respectively. Geographical distribution of the 42 hospitals: there were 9 hospitals in central China, 5 hospitals in northeast China, 22 hospitals in eastern China and 6 hospitals in western China. Geographical distribution of the 6 159 patients: there were 2 154 cases(34.973%) from central China, 705 cases(11.447%) from northeast China, 1 969 cases(31.969%) from eastern China and 1 331 cases(21.611%) from western China. The total average number of cases undergoing diagnosis and treatment in hospitals of the 6 159 patients was 18.3±4.5 per year, in which the average number of cases undergoing diagnosis and treatment in hospitals of 4 974 patients(80.760%) from hospitals with high admission of gallbladder cancer was 38.8±8.9 per year and the average number of cases undergoing diagnosis and treatment in hospitals of 1 185 patients(19.240%) from hospitals with low admission of gallbladder cancer was 5.7±1.9 per year. (2) Age and sex distribution: the age of 6 159 patients diagnosed as gallbladder cancer was 64(56,71) years, in which the age of 2 247 male patients(36.483%) diagnosed as gallbladder cancer was 64(58,71)years and the age of 3 912 female patients(63.517%) diagnosed as gallbladder cancer was 63(55,71)years. The sex ratio of female to male was 1.74:1. Of 6 159 patients, 3 886 cases(63.095%) were diagnosed as gallbladder cancer at 56 to 75 years old. There was a significant difference on age at diagnosis between male and female patients ( Z=-3.99, P<0.001). (3) Diagnosis: of 6 159 patients, 2 503 cases(40.640%) were initially diagnosed as gallbladder cancer and 3 656 cases(59.360%) were initially diagnosed as non-gallbladder cancer. There were 2 110 patients(34.259%) not undergoing surgical treatment, of which 200 cases(9.479%) were initially diagnosed as gallbladder cancer and 1 910 cases(90.521%) were initially diagnosed as non-gallbladder cancer. There were 4 049 patients(65.741%) undergoing surgical treatment, of which 2 303 cases(56.878%) were initially diagnosed as gallbladder cancer and 1 746 cases(43.122%) were initial diagnosed as non-gallbladder cancer. Of the 1 746 patients who were initially diagnosed as non-gallbladder cancer, there were 774 cases(19.116%) diagnosed as gallbladder cancer during operation and 972 cases(24.006%) diagnosed as gallbladder cancer after operation. Of 6 159 patients, there were 2 521 cases(40.932%), 2 335 cases(37.912%) and 1 114 cases(18.087%) undergoing ultrasound, computed tomography (CT) or magnetic resonance imaging (MRI) examination before initial diagnosis, respec-tively, and there were 3 259 cases(52.914%), 3 172 cases(51.502%) and 4 016 cases(65.205%) undergoing serum carcinoembryonic antigen, CA19-9 or CA125 examination before initially diagnosis, respectively. One patient may underwent multiple examinations. Results of univariate analysis showed that geographical distribution of hospitals (eastern China or western China), age ≥72 years, gallbladder cancer annual admission of hospitals, whether undergoing ultrasound, CT, MRI, serum carcinoembryonic antigen, CA19-9 or CA125 examination before initially diagnosis were related factors influencing initial diagnosis of gallbladder cancer patients ( odds ratio=1.45, 1.98, 0.69, 0.68, 2.43, 0.41, 1.63, 0.41, 0.39, 0.42, 95% confidence interval as 1.21-1.74, 1.64-2.40, 0.59-0.80, 0.60-0.78, 2.19-2.70, 0.37-0.45, 1.43-1.86, 0.37-0.45, 0.35-0.43, 0.38-0.47, P<0.05). Results of multivariate analysis showed that geographical distribution of hospitals (eastern China or western China), sex, age ≥72 years, gallbladder cancer annual admission of hospitals and cases undergoing ultrasound, CT, serum CA19-9 examination before initially diagnosis were indepen-dent influencing factors influencing initial diagnosis of gallbladder cancer patients ( odds ratio=1.36, 1.42, 0.89, 0.67, 1.85, 1.56, 1.57, 0.39, 95% confidence interval as 1.13-1.64, 1.16-1.73, 0.79-0.99, 0.57-0.78, 1.60-2.14, 1.38-1.77, 1.38-1.79, 0.35-0.43, P<0.05). (4) Surgical treatment and prognosis. Of the 4 049 patients undergoing surgical treatment, there were 2 447 cases(60.435%) with complete pathological staging data and follow-up data. Cases with pathological staging as stage 0, stage Ⅰ, stage Ⅱ, stage Ⅲa, stage Ⅲb, stage Ⅳa and stage Ⅳb were 85(3.474%), 201(8.214%), 71(2.902%), 890(36.371%), 382(15.611%), 33(1.348%) and 785(32.080%), respectively. The median follow-up time and median postoperative overall survival time of the 2 447 cases were 55.75 months (95% confidence interval as 52.78-58.35) and 23.46 months (95% confidence interval as 21.23-25.71), respectively. There was a significant difference in the overall survival between cases with pathological staging as stage 0, stage Ⅰ, stage Ⅱ, stage Ⅲa, stage Ⅲb, stage Ⅳa and stage Ⅳb ( χ2=512.47, P<0.001). Of the 4 049 patients undergoing surgical treatment, there were 2 988 cases(73.796%) with resectable tumor, 177 cases(4.371%) with unresectable tumor and 884 cases(21.833%) with tumor unassessable for resectabi-lity. Of the 2 988 cases with resectable tumor, there were 2 036 cases(68.139%) undergoing radical resection, 504 cases(16.867%) undergoing non-radical resection and 448 cases(14.994%) with operation unassessable for curative effect. Of the 2 447 cases with complete pathological staging data and follow-up data who underwent surgical treatment, there were 53 cases(2.166%) with unresectable tumor, 300 cases(12.260%) with resectable tumor and receiving non-radical resection, 1 441 cases(58.888%) with resectable tumor and receiving radical resection, 653 cases(26.686%) with resectable tumor and receiving operation unassessable for curative effect. There were 733 cases not undergoing surgical treatment with complete pathological staging data and follow-up data. There was a significant difference in the overall survival between cases not undergoing surgical treatment, cases undergoing surgical treatment for unresectable tumor, cases undergoing non-radical resection for resectable tumor and cases undergoing radical resection for resectable tumor ( χ2=121.04, P<0.001). (5) Multimodality therapy and prognosis: of 6 159 patients, there were 541 cases(8.784%) under-going postoperative adjuvant chemotherapy and advanced chemotherapy, 76 cases(1.234%) under-going radiotherapy. There were 1 170 advanced gallbladder cancer (pathological staging ≥stage Ⅲa) patients undergoing radical resection, including 126 cases(10.769%) with post-operative adjuvant chemotherapy and 1 044 cases(89.231%) without postoperative adjuvant chemo-therapy. There was no significant difference in the overall survival between cases with post-operative adjuvant chemotherapy and cases without postoperative adjuvant chemotherapy ( χ2=0.23, P=0.629). There were 658 patients with pathological staging as stage Ⅲa who underwent radical resection, including 66 cases(10.030%) with postoperative adjuvant chemotherapy and 592 cases(89.970%) without postoperative adjuvant chemotherapy. There was no significant difference in the overall survival between cases with postoperative adjuvant chemotherapy and cases without postoperative adjuvant chemotherapy ( χ2=0.05, P=0.817). There were 512 patients with pathological staging ≥stage Ⅲb who underwent radical resection, including 60 cases(11.719%) with postoperative adjuvant chemotherapy and 452 cases(88.281%) without postoperative adjuvant chemotherapy. There was no significant difference in the overall survival between cases with postoperative adjuvant chemo-therapy and cases without post-operative adjuvant chemo-therapy ( χ2=1.50, P=0.220). Conclusions:There are more women than men with gallbladder cancer in China and more than half of patients are diagnosed at the age of 56 to 75 years. Cases undergoing ultrasound, CT, serum CA19-9 examination before initial diagnosis are independent influencing factors influencing initial diagnosis of gallbladder cancer patients. Preoperative resectability evaluation can improve the therapy strategy and patient prognosis. Adjuvant chemotherapy for gallbladder cancer is not standardized and in low proportion in China.