Objective To studythe preventive effects of modified Dihuang decoction on the relapse of urinary calculus after caiculus removed or destroyed.Methods 306 cases were randomly divided into a trealment group (with 149 cases)and a control group(with 157 cases).The trealment group was interfered with modified Dihuang decoction for 6 years,and the control group was not interfered with any medicine.Observe the relapse number in the two groups.Results There were 8 cases relapsed in the treatment group(5.4%)comparing with 46 cases relapsed in the control group(29.3%),showing a significant difference (P＜0.01).Conclusion Medified Dihuang decoction has apparent effects in preventing relapse of urinary calculus.

Objective To investigate the relationship of resting electrocardiogram (ECG) ST-T wave change and posi-tive outcome of coronary angiography (CAG). Methods A comparison was made between CAG results and routine 12-channel resting ECG of 1173 patients diagnosed as coronary heart disease (CHD) clinically in cardiovascular depart-ment of internal medicine in the first affiliated hospital of Chongqing medical university ,and their correlation was ana-lyzed. Results ECG ST-T change was not significantly correlated to the CAG positive outcome (Kappa=0.161,P<0.01);There was significant difference of the positive rates between those two examinations(P<0.01);The ECG positive result rates in different coronary artery lesion groups were significantly different (P<0.01); With the increase of coro-nary artery stenosis number, the positive rate of ECG significantly increased. (P<0.01). Conclusion ECG ST-T wave change might partially predict the coronary artery stenosis, but its clinical utility is limited for CHD diagosis compared with CAG. Therefore,it should be careful to diagnose CHD only according to ECG ST-T change in clinic,and clinical diagnosis shuld be made based on clinical symptom and other examinations.

Objective To analyze the epidemiological characteristics of epidemic mumps in Chongqing Wanzhou district,and provide scientific basis for taking effective prevention and control measures.Methods Epidemic data of mumps in Wanzhou district from January 2011 to December 2014 were investigated retrospectively.Results A total of 2 785 cases of epidemic mumps were reported,there was no death case,the incidence of mumps was 44.02/100 000.Incidence of mumps in population under 15 years old was the highest,accounting for 84.45% (2 352/2 785 ).Mumps mainly occurred among students (1 674 cases,60.11 %).The peaks were from April to July and Oc-tober to December,the number of mumps increased significantly from October to December in 2013.Difference in incidence among each year of 2011 -2014 was statistically different(χ2 =40.52,P <0.01).Incidence of mumps was statistically different between the city streets and villages/towns(63.99/100 000 vs 32.13/100 000,χ2 =20.168,P<0.01).Incidence was statistically different between the city streets and villages/ towns each year of 2011 -2014 (all P < 0.01 ),except 2012,the incidence of mumps of city streets was significantly higher than villages/ towns. Conclusion It is important to conduct “Five early”for the prevention and treatment of infectious diseases,strength-en the vaccination of measles-mumps-rubella (MMR)vaccine or vaccine against epidemic mumps,especially the vaccination for students and children in nurseries,popularize the knowledge about prevention and control of mumps, improve diagnosis and treatment level,and strengthen the epidemic monitoring.

Objective:To explore a medical big data algorithm to screen the core indicators in clinical database that can be used to evaluate the prognosis of elderly patients with pneumonia.Methods:Based on the clinical database of a Beijing Chaoyang Hospital Consortium Chaoyang Emergency Ward in Beijing Chaoyang Hospital, Capital Medical University, patients with pulmonary infection were selected through the big data retrieval technology. According to the prognosis at the time of discharge, they were divided into death group and survival group. The general data of patients were collected, including gender, age, blood gas and laboratory indices. A computer language called Python was used to make batch calculations of key indicators that affect mortality in elderly patients with pneumonia. Logistic regression analysis was used to analyze the relationship between laboratory indicators and patients' prognosis. Receiver operating characteristic curve (ROC curve) was drawn to analyze the predictive value of screening method for patients' prognosis.Results:A total of 265 patients were included in the study, 64 died and 201 survived. The data of the first detection indexes of each patient after admission were collected, and 23 key indicators with significant differences were selected from 472 indicators: blood routine indicators ( n = 7), blood gas indicators ( n = 3), tumor markers indicators ( n = 3),coagulation related indicators ( n = 4), and nutrition and organ function indicators ( n = 6). ① The key indicators of blood gas in patients died of pneumonia: Cl - was 97-111 mmol/L in 51.6% (33 cases) of patients, lactic acid (Lac) was 0.5-2.5 mmol/L in 81.2% (52 cases) of patients, and H + was 0-46 mmol/L in 87.5% (56 cases) of patients. ② The key indicators of blood routine of patients died of pneumonia: hemoglobin count (Hb) of 46.9% (30 cases) patients was 80-109 g/L, the eosinophils proportions (EOS%) in 67.2% (43 cases) patients was 0.000-0.009, the lymphocytes proportions (LYM%) in 51.6% (33 cases) patients was 0.00-0.09, the red blood cell count (RBC) in 50.0% (32 cases) patients was (3.0-3.9)×10 12/L, the white blood cell count (WBC) in 54.7% (35 cases) patients was (0.0-9.9)×10 9/L, and the red blood cell volume distribution width coefficientof variability (RDW-CV) in 48.4% (31 cases) patients was 10.0%-14.9%, serum C-reactive protein (CRP) was 0.0-49.9 mg/L in 48.4% (31 cases) patients. ③ The key indicators of tumor markers in patients died of pneumonia: 76.6% (49 cases) of patients had negative free prostate specific antigen/total prostate specific antigen (FPSA/TPSA, the ratio was 0), 92.2% (59 cases) had cytokeratin 19 fragment (CYFRA21-1) between 0.0-11.0 μg/L, and 75.0% (48 cases) had carbohydrate antigen 125 (CA125) between 0-104 kU/L.④ The key coagulation indexes of patients died of pneumonia: 68.8% (44 cases) of patients had activated partial thromboplastin time (APTT) of 57-96 s, 73.4% (47 cases) of patients had D-dimer of 0-6 mg/L, 93.8% (60 cases) of patients had thrombin time (TT) of 14-22 s, and 89.1% (57 cases) of patients had adenosine diphosphate (ADP) inhibition rate of 0%-53%. ⑤ Nutrition and organ function key indicatorsin patients died of pneumonia: 92.2% (59 cases) of brain natriuretic peptide (BNP) in patients with 0, 46.9% (30 cases) of patients had prealbumin (PA) of 71-140 mg/L, 90.6% (58 cases) of the patients with uric acid (UA) for 21-41 μmol/L, 75.0% (48 cases) of the patients with albumin (Alb) to 10-20 g/L, 93.5% (60 cases) of patients had albumin/globulin ratio (A/G ratio) of 0-0.9, 84.4% (54 cases) of the patients with lactate dehydrogenase (LDH) from 0-6.68 μmol/L·s -1·L -1. ⑥ Logistic regression analysis and ROC curve analysis: Logistic regression analysis showed that PA and Lac were the prognostic factors. PA could reduce the risk of death by 0.9%, Lac could increase the risk of death by 69.4%; the area under ROC curve (AUC) between laboratory indicators and the prediction effect of death prediction model for patients' prognosis was 0.80, which showed that the classification effect was better, and this study model could better predict the prognosis of elderly patients with pneumonia. Conclusion:By using big data technology, 23 core indicators for evaluating the prognosis of elderly patients with pneumonia can be screened from the clinical database of emergency ward, which provides a new perspective and method for clinical evaluation of the prognosis of elderly patients with pneumonia.

Fufang Shechuangzi Xiji (Lotion) is a common hospital preparation made from clinical prescriptions. Its clinical efficacy is accurate, yet its pharmacodynamic material basis has not been clarified.An ultra-high performance liquid chromatography with quadrupole time-of-flight mass spectrometry (UPLC-QTOF-MS/MS) technique was developed to identify the chemical constituents of Fufang Shechuangzi Xiji (Lotion).The chemical constituents of Fufang Shechuangzi Xiji (Lotion) were scanned by electrospray ionization (ESI) source in positive and negative ion modes.As a result, a total of 118 compounds were identified and characterized via reference standards and by comparing mass spectrometry data with literature, including 45 alkaloids, 21 coumarins and chromones, 19 flavonoids, 14 saponins, 10 anthraquinones and 9 organic acids.As a result, UPLC-QTOF-MS/MS technology can quickly and sensitively identify the chemical constituents of Fufang Shechuangzi Xiji (Lotion), which provides a useful reference for exploring the pharmacodynamic material basis and further quality control study of the preparation.