Objective To compare and analysis clinicopathological characteristics,and to investigate progno-sis factors of gastric cancer in young patients.Methods Clinicopathological data of 103 gastric cancer in young patients (YGC,18-44 years) who underwent surgery,endoscopic and pathology diagnosis in the affiliated Jincheng Coal General Hospital of Shanxi Medical University from January 2010 to December 2014 were analyzed retrospective-ly.A total of 315 gastric cancer in older patients ( OGC,≥60 years) during the same period patients were selected and compared to the young gastric cancer patients.Results The male to female ratios was 1 1.5 and the percentage of female patients was predominant in the 103 YGC patients,and there was statistically significant different (χ2 =32.03,P<0.01).The first clinical symptoms were upper abdominal pain and hemorrhagic anemia in most of the YGC group.Gastric antruma was most common in the occurrence site of the tumor of the YGC group.The incidence of the BorrmannⅢtype andⅣtype in YGC patients was statistically higher than that of the OGC group.With regard to his-tological type,the most frequency type in the YGC group was diffuse adenocarcinoma (83%),which was statistically significant different.As compared with the OGC patients,poorly differentiated adenocarcinoma and ring cell carcinoma were predominant pathological type in YGC (χ2 =41.51,P<0.01).Nothing can be compared with T3 stage and T4 stage of the depth of invasion,and clinical stage wereⅢstage andⅣstage in most of the YGC group (χ2 =48.78, P<0.01).Patients with a family history of cancer in YGC were higher than OGC,which was statistically different (χ2 =17.39,P<0.05).There were no statistical significant difference in tumor size,Hp infection rate,level of albu-min,level of serum CEA,vascular cancer embolus and incisal edge between the two groups.On univariate and multiva-riate analysis showed that the depth of invasion,degree of differentiation,lymph node metastasis,clinical stage and sur-gical methods were the independent risk factors associated with the prognosis of YGC.Conclusion The YGC patients are usually female,obviously hereditary tendency,and tumor most locate at gastric antruma.The first clinical symptoms are lacking in specific,but upper abdominal pain and hemorrhagic anemia in most of the YGC patients.Ⅲstage andⅣstage was most common of clinical stage.The YGC patients are usually poorly differentiation,highly ma-lignant,early metastasis and poorer prognosis.

Objective To investigate the clinical characteristics of twice-weekly hemodialysis patients.Methods Data were collected from Shanghai Renal Registry.A total of 1288 patients undergoing regular hemodialysis (HD) with dialysis adequacy index and other biochemical parameters in Shanghai in January 2007 were enrolled into the cohort study with 2 years follow-up.Clinical characteristics and outcome of twice-weekly HD patients were analyzed as compared with thrice-weekly HD patients.Results Compared with patients on thrice-weekly HD,the twice-weekly HD patients were significantly younger and had significantly shorter HD vintage,smaller body surface area,longer HD session time,higher single-pool Kt/V (spKt/V) and serum albumin but lower weekly Kt/V (P＜0.05).There was no statistical difference in ultrafiltration volume between two groups.Kaplan-Meier survival analysis indicated that both groups had similar two-year survival.Multivariate Cox regression analysis showed that age,body mass index,serum albumin and weekly Kt/V were predictors of patient mortality.Conclusion It is acceptable for some hemodialys patients with twice-weekly HD,and close monitor of dialysis adequacy and volume status is necessary for this therapy model.

Objective To investigate the incidence, risk factors and outcome of acute kidney injury (AKI) following cardiac surgeries. Methods Clinical data of 1056 patients undergoing open heart surgery in Renji Hospital from January 2004 to June 2007 were retrospectively analyzed. Univariate and multivariate analyses were used to evaluate possible pre-,intra-, and post-operative parameters associated with AKI according to AKI Network (AKIN). Results Of the 1056 patients, 328 (31.06%) developed AKI. In-hospital mortality was 4.07% in all discharges while 11.59% in AKI patients (P<0.01). Multivariate logistic regression analysis revealed that increased age (OR=1.40), pre-operative hyperurieemia (OR=1.97), pre-operative left ventricular insufficiency (OR=2.53), combined surgery (OR=2.79), prolonged operation time (OR=1.43), post-operative circulation volume insufficiency (OR=11.08) were risk factors of AKI. Conclusions AKI is a common complication and associated with increased mortality following cardiac surgery. Increased age, pre-operative hyperuricemia, pre-operative left ventricular insufficiency, combined surgery, prolonged operation time, post-operative circulation volume insufficiency are useful in stratifying risk factors for the development of AKI.

Objective To validate the effect of Renji acute kidney injury score (RAKIS) on predicting patients with acute kidney injury (AKI) after cardiac surgeries,and make comparison with Cleveland score,simplified renal index (SRI) and acute kidney injury following cardiac surgery (AKICS).Methods Patients undergoing open heart surgery from 2008/01/01 to 2010/10/31 in Renji hospital were enrolled,and their scores of those four scoring models were calculated.AKI patients were diagnosed by KDIGO,and those scores of AKI patients and non-AKI patients were compared.Receiver operating characteristic (ROC) curve and area under curve (AUC) were used to decide the predictive values of those models.Results A total of 1126 patients were chosen in this cohort,with the average age of (58.43±14.88) years (rang from 18 to 88).The male to female ratio was 1.47:1.And 355(31.5％) patients were developed AKI.AKI stage Ⅰ,Ⅱ and Ⅲ were 65.4％,23.7％ and 11.0％ respectively.RAKIS was significantly higher in AKI patients than in non-AKI patients (17.5 vs 9.0,P ＜ 0.001).The AUCs of RAKIS to predict AKI,AKI Ⅱ-Ⅲ stages,renal replacement therapy (RRT)and in-hospital death were 0.818,0.819,0.800 and 0.784 respectively.The AUCs of Cleveland score and SRI were 0.659 to 0.710,lower than those of RAKIS and AKICS.AKICS had lower value for predicting AKI and AKI Ⅱ-Ⅲ stages (AUC 0.766 and 0.793),but good value in predicting RRT and inhospital death after surgery (AUC 0.804 and 0.835) as compared with RAKIS.Conclusions RAKIS is valid and accurate in the discrimination of KDIGO defined AKI patients,while for predicting the composite end point,AKICS may be more useful.

Objective:To investigate the malignant imaging characteristics of non-palpable Breast Imaging-Reporting and Data System 3 breast lesions (NPBL BI-RADS 3 breast lesions) with ultrasound-guided core needle biopsy.Methods:From February 2016 to February 2018, the ultrasound characteristics of 161 NPBL BI-RADS 3 breast lesions in Beijing Friendship Hospital, Capital Medical University were retrospectively collected with ultrasound-guided core needle biopsy and pathological examination. According to the pathological results, the patients were divided into two groups: benign group (153 cases) and malignant group (8 cases). Associated risk factors were analyzed retrospectively according to general characteristics and characteristics of the ultrasound report. The Fisher exact probability test was used for single-factor comparative analysis. Significant variables based on univariate analysis were included in multivariate regression analysis, and then logistic regression was used to search for clinical risk parameters and ultrasound malignant signs. The receiver operating characteristic (ROC) curve was plotted with statistically significant factors to evaluate the diagnostic efficacy. In combination with the area under the curve (AUC), the parameter integral critical value, sensitivity and specificity were analyzed.Results:The age≥45 years ( OR=35.036, P=0.012), the maximum lesion diameter of 1-1.3 cm ( OR=25.047, P=0.008) and a aspect ratio of the lesion of 0.56-0.72 ( OR=19.860, P=0.013) could significantly affect the benign and malignant nature of the lesions, could be independent risk factors. The AUCs for constructing ROC curves to assess the diagnostic values of the above-mentioned indices were 0.732, 0.724 and 0.751, respectively; the sensitivity was 87.5%, 62.5% and 75%; the specificity was 58.8%, 82.4% and 75.2%; the positive predictive values was 10.0%, 15.6% and 13.6%; the negative predictive values was 98.9%, 97.7% and 98.3%, respectively. Conclusion:Of the NPBL BI-RADS 3 breast lesions, the malignant risk of lesions with an age≥45 years, maximum diameter of 1-1.3 cm and aspect ratio of 0.56-0.72 is high.

Objective To compare the efficacy and safety of leflunomide (LEF) combined with medium/low dose corticosteroids and full dose of corticosteroids in the treatment of IgA nephropathy. Method Primary IgAN patients diagnosed by renal biopsy with 18?65 years old and eGFR≥30 ml·min?1·(1.73 m2)?1 and proteinuria>0.5 g/24 h were enrolled in a prospective controlled clinical study. They were randomly divided into leflunomide combined with medium/low dose corticosteroids (LEF group) and corticosteroids alone (steroid group). The primary outcomes were (1) end stage renal disease or dialysis (2) 50% increase in serum creatinine above the baseline. Secondary outcome was the remission of proteinuria. Results Ninety patients completed the follow?up. The 24?hour proteinuria at baseline were 2.00(1.10, 2.88) g and 1.87(1.13 ,3.08) g in LEF group and steroid group respectively. Compared with baseline, it was significantly decreased in both groups at 6 months [0.30(0.11, 0.93) g, 0.30(0.14, 1.33) g] and 12 months [0.30(0.09, 0.82) g, 0.32(0.14, 0.66) g], (P<0.05). Estimated glomerular filtration rate (eGFR) at baseline, 6 months and 12 months were (80.39 ± 28.56), (87.12±28.70) and (88.20±30.26) ml·min-1·(1.73 m2)-1. It was decreased in steroid group (P<0.05), while no significant difference was detected in LEF group[baseline (87.63 ± 27.35), 6 months (86.91 ± 32.45), 12 months (90.06 ± 30.00) ml·min-1·(1.73 m2)-1, P>0.05]. At 6 and 12 months, there was no significant difference in terms of 24?hour proteinuria, serum creatinine and eGFR (CKD?EPI) between groups (P>0.05). There was no statistically significant difference in adverse events between groups during the treatment (9/40 cases in LEF group and 11/50 cases in steroid group, P>0.05). The average follow?up was 79 months, and there was no difference in the renal prognosis between the two groups. Multivariate Cox regression analysis revealed that serum creatinine at baseline and renal interstitial inflammatory cell infiltration predicted the risk of the progress of IgA nephropathy. Conclusion Leflunomide plus medium/low dose corticosteroids has a similar effect as full dose of corticosteroids in IgA nephropathy and does not increase the risk for adverse events during the treatment.

Objective:To establish a IgA nephropathy (IgAN) standard dataset for the structured and standardization of IgAN clinical information, which will be beneficial to the integration and utilization of clinical information among different medical institutions. Therefore, the IgAN Expert Collaboration Group composed the "IgA Nephropathy Standard Dataset".Methods:Referring to the domestic information standards, guidelines, data standard and consensus of related fields, based on electronic medical history, the patient identification number was used as the primary key of the system to collect information. By standardizing each data element in the data set, the standardization of the management system in data and information exchange, data collaboration and sharing was ensured, and a quality control system was developed.Results:This standard dataset included 607 data elements and 8 business domains, which were patient information, medical history information, physical examination, laboratory examination, assistant examination, renal pathology, drug treatment, and follow-up, respectively. Each module was composed of module name, data element name, English name, definition, range, reference standard, etc. At the same time, a corresponding quality control system was formulated to evaluate data quality from multiple dimensions such as completeness, standardization, accuracy, timeliness, and security for ensuring the high quality and security of the data.Conclusion:The IgAN standard dataset is established, which will contribute to the structuration and standardization of clinical information of IgAN patients.

Objective To investigate the factors affecting the efficacy of leflunomide combined with medium/low dose corticosteroids in the treatment of progressive IgA nephropathy (IgAN).Methods Clinical and pathological parameters were collected retrospectively in patients of primary IgAN with proteinuria＞ 1.0 g/24 h and chronic kidney disease (CKD) stage 1-3 treated with leflunomide combined with medium/low dose corticosteroids in Ren Ji Hospital,School of Medicine,Shanghai Jiao Tong University from Jan 2005 to Dec 2010.According to the treatment effects,patients were divided into complete remission group and non-complete remission group.The biochemical and pathological indexes of the two groups were compared.Results A total of 42 patients were included.The remission rates at 3,6,9 and 12 months were 62％,64％,67％ and 74％,respectively.Seventeen (40.5％) and fourteen (33.3％) patients achieved complete and partial remission after one-year treatment,and the remission rate remained stable within one year after withdrawal of drugs.The 24hour proteinuria was 1.50 (0.67,2.66) g,which was significantly reduced compared with the baseline 2.44 (1.36,3.74) g (P ＜ 0.01).The decrease rate was 31.3％.There was a slight decrease in proteinuriawithin one year after withdrawal of drugs.Estimated glomerular filtration rate (eGFR) remained stable during the treatment and a year of follow-up.No serious adverse event was observed during the followup period.Among 31 responder patients,6(19.4％) patients relapsed.Logistic multivariate regression analysis suggested that the degree of renal interstitial inflammatory infiltration was an independent predictor of complete remission with one-year treatment of leflunomide combined with medium / low dose corticosteroids (HR=0.067,95％ CI 0.008-0.535,P=0.011).Conclusions IgAN treated with leflunomide and medium/low dose corticosteroids can achieve remission in early stage,and the remission rate remains stable after withdrawal of drugs.It is a safe option for the treatment of IgAN.Renal interstitial inflammatory infiltration is an independent predictor of complete remission.

Objectives:To analyze the consistency of evaluating left ventricular hemodynamics (HDF) based on single plane and multi plane cine sequences of magnetic resonance mitral valve orifice.Methods:A prospective study was conducted on 48 healthy adults, and two methods were used to measure the mitral valve diameter and calculate HDF parameters. The first method was to measure the diameter of the mitral valve opening in the left ventricular three chamber cine sequence; The second method is to measure the mitral valve diameter using cine sequences of two chamber, three chamber, and four chamber hearts, and then take the average value. Paired t-tests were used to compare the differences in HDF measured by two methods, and Pearson correlation coefficient ( r), intra group correlation coefficient ( ICC), and Bland-Altman analysis were used to test the consistency and reproducibility of the two methods. Results:The root mean square (RMS) of longitudinal HDF calculated using single plane and multi plane mitral valve diameters were [(17.28±4.41)% vs (17.21±4.61)%] ( P=0.379) for the entire cardiac cycle, [(21.45±5.54)% vs (21.49±5.68)%] ( P=0.646) for systolic phase, and [(12.78±4.10)% vs (12.54±4.24)%] ( P=0.106) for diastolic phase, respectively. The difference in the calculation results of HDF parameters related to ventricular function was not statistically significant (all P>0.05), and there was good consistency ( r=0.924-0.996, ICC=0.924-0.995). The two HDF parameters related to atrial function were sensitive to the measurement method of mitral valve orifice diameter [RMS of longitudinal HDF during active atrial emptying: (3.26±1.51)% vs (3.32±1.55)%, P=0.006; longitudinal HDF pulse during active atrial emptying: (-2.60±1.28)% vs (-2.76±1.30)%, P<0.001]. Conclusions:The ventricular function related HDF parameters obtained from the analysis of mitral valve orifice diameter using single plane and multi plane methods have good consistency, and can be evaluated using relatively simple single plane methods for left ventricular HDF.