Objective To study the connections between PM 2.5 in the air in Jinan city and the outpatient visits in the department of pneumology, the department of cardiology and the department of neurology. Methods Outpatient visits in the department of pneumology, department of cardiology and department of neurology in two comprehensive hospitals in Jinan, air quality and meteorological data were collected. On the basis of controlling confounding factors such as "day of the week" and meteorological data, generalized additive poisson regression model was applied to analyze the effect of PM 2.5 on the outpatients visits. Results While two-day cumulative PM 2.5 was lower than 200 μg/m3, the increase of outpatients visits in the department of pneumology was not substantial along with the increase of PM 2.5. While PM 2.5 was higher than 200 μg/m3 and lower than 400 μg/m3, the outpatient visits were large. Concentration of PM 2.5 in the atmosphere showed a non-linear connection with daily outpatients visits in the Department of Pneumology. Concentra-tion of two-day cumulative PM 2.5 showed a linear connection with the outpatient visits in department of cardiology and department of neurology. Once the two-day cumulative PM 2.5 increased 1 μg/m3, 1 more patient visited the out-patient of department of cardiology and department of neurology. Conclusion With the increase of PM 2.5 concentra-tion in the air, outpatient visits in the department of pneumology, the department of cardiology and the department of neurology have an increasing trend, but the concentration of PM 2.5 has slight different connections with the daily out-patient visits in different departments.

Objective To investigate the relationship between the carotid calcification and the prognosis in patients with ischemic stroke. Methods A total of 522 patients with non-cardiac ischemic stroke registered in the Nanjing Stroke Registry Program (NSRP )from December 2009 to October 2012 were enrolled. All patients underwent head and neck CT angiography (CTA). The original data of CT scan were transmitted into the Siemens workstation. Calcium score measurement was performed using the same reconstruction conditions and Agatston calcium score to measure calcification score. The patients were divided into no (0),mild (0

Objective No consensus has yet been achieved on the relationship of serum albumin with the functional out-come of acute ischemic stroke.The aim of our study was to determine whether the serum albumin level was associated with the short-term functional outcome of acute ischemic stroke in well-nourished patients. Methods Totally, 113 patients with first-ever acute ischemic stroke were recruited from Nanjing Stroke Registration Program between January and June 2015.Baseline data including de-mographic and body parameters, vascular risk factors, and laboratory results were collected.The NIH Stroke Scale ( NIHSS) was used to evaluate the severity of neurological deficits and the modified Rankin Scale ( mRS ) employed to assess the short-term functional outcome.According to the mRS at discharge, the patients were divided into a good outcome group ( mRS<3 ) and a poor out-come group ( mRS≥3 ) .The independent predictors of the short-term functional outcome were evaluated by multivariate logistic regression analysis. Results Of the 113 acute ischemic stroke patients included, 52 (46.0%) were in the good outcome group, and 61 (54.0%) in the poor outcome group.Those in the former group had a significantly higher BMI, lower serum LDL-C, lower WBC count, and lower NIHSS at admission than those in the latter .Multivariate logistic regression analysis showed that low serum albumin, NIHSS at admission, and arteriole occlusion were independent predictors of the poor short-term functional outcome ( OR=0.684, 95% CI:0.490-0.956, P=0.026). Conclusion Low serum albumin is an independent predictor of poor short-term functional outcome in acute ischemic stroke patients in well-nourished status.

Objective There is little research on the relationship of gene polymorphism of CYP2C19 and clopidogrel response after percutaneous transluminal angioplasty and stenting ( PTAS) in patients with ischemic cerebrovascular disease.The study aimed to investigate the relationship between gene polymorphism and high on-treatment platelet reactivity ( HTPR ) after PTAS and 6 months of regular dual antiplatelet administration in patients. Methods A total of 145 Chinese patients treated with PTAS in our de-partment from January 2011 to March 2014 were enrolled in this study.According to the gene sequencing, patients were divided into wild-type group(CYP2C19*1/*1,69 cases) and mutation group(heterozygous mutation CYP2C19*1/*2 and homozygous mutation CYP2C19*2/*2, 76 cases).Patients received a 100mg/d aspirin and 75mg/d clopidogrel maintenance dose (MD) as dual anti-platelet therapy after PTAS.The clopidogrel inhibition effect was measured by thrombelastography ( TEG) system 6 months after PTAS. Routine cerebral artery digital subtraction angiography was applied to evaluate whether there was restenosis in stent and logistic regres-sion analysis was used to analyze the influential factors of HTPR after PTAS and clopidogrel adminstration. Results After 6 months'regular administration of clopidogrel after PTAS, the platelet adenosine diphosphate ( ADP ) receptor inhibition rates in wild-type group, heterozygous mutation and homozygous mutation group were respectively (58.43 ±21.98)%, (47.80 ±22.93)%, (37.53 ± 21.84)%.The platelet ADP receptor inhibition rate was significantly decreased compared with wild-type group(P=0.001).Carriers of at least one CYP2C19 loss-of-function ( LOF) allele had a higher frequency of clopidogrel HTPR (35.5% vs17.4 % for patients with and without LOF alleles, respectively;P=0.014) .Using multivariate logistic regression analysis, the carriage of CYP2C19 LOF alleles was an independent predictor of the post-procedure HTPR (OR=2.356, 95% CI:1.053-5.272, P=0.037).The rate of ISR was remarkably higher in patients with at least one CYP2C19*2 alleles compared with wild-type patients(11.8%vs 1.4%, P=0.019) . Conclusion In patients with ischemic cerebrovascular disease, the CYP2C19 LOF allele had significant impact on post-procedure clopidogrel HTPR and the prognosis of ISR after PTAS.

Purpose/Significance Based on the typical use scenario of sensitive personal information in medical and health institu-tions,the implementation of the secure use of sensitive personal information is explored.Method/Process For user registration,internal utilization and interaction,medical device/wearable device collection and information disclosure and other scenarios,the paper analyzes the risk of sensitive personal information leakage,explores the application scenarios,advantages and disadvantages of various technical means such as identity authentication,access control,data encryption,data desensitization and detection audit.Result/Conclusion The application of technical means can assist medical and health institutions to further protect the security of patients'personal information.