Objective: To explore the risk factors in patients with chronic heart failure (CHF) combining atrial ifbrillation (AF) and to identify the predictive factors for AF recurrence after cardio version. Methods: A total of 246 CHF patients treated in our hospital were divided into 2 groups: CHF+AF (AF) group,n=71 and CHF without AF (Non-AF) group,n=175. The baseline information was recorded. The risk factors for AF occurrence were screened by Logistic regression analysis. There were 66 AF patients with successful cardio verse and they were followed-up for 18 months, the predictors for AF recurrence were studied by Cox regression analysis. Results: The baseline information showed that age, CHF duration, left atria diameter (LAD), the levels of BNP, uric acid and serum creatinine in AF group were all higher than those in Non-AF group, allP<0.05. Logistic regression analysis presented that age (RR=1.89, 95% CI 1.08-3.31,P<0.05), CHF duration (RR=1.35, 95% CI 1.05-1.74,P<0.05), BNP level (RR=1.82, 95% CI 1.30-2.53,P<0.01), LAD (RR=1.51, 95% CI 1.09-2.08,P<0.05) were the risk factors for AF occurrence. Cox regression analysis indicated that BNP level (RR=1.30, 95% CI 1.09-1.54,P<0.01) and LAD (RR=1.74, 95% CI 1.30-2.34, P<0.01) were the predictors for AF recurrence. Conclusion: The elder age, longer CHF duration, increased BNP level and LAD were the risk factors for AF occurrence in CHF patients. The increased BNP level and LAD were the objective predictors for AF recurrence after cardio version.

Objective The relationship between toll like receptor 4 (TLR4) the single nucleotide polymor-phisms of gene (SNP) and ischemic stroke reperfusion injury was evaluated by meta-analysis ,which was de-signed to provide evidence-based medicine for the prevention of ischemic stroke reperfusion injury . Methods In Medline ,PubMed ,EMBASE ,Cochrane ,CBM ,Chinese Journal Net ,academic conference materials and dissertations ,we searched for comprehensive information on the relationship between TLR4 gene SNP (rs10759932 ,rs11536891 ,rs11536879) in ischemic stroke Cohort study and case-control literature to determine whether the gene SNP (rs10759932 ,rs11536891 ,rs11536879) was associated with ischemic stroke reperfusion injury by genotype comparison .The heterogeneity test was performed by Stata11 .0 .The heterogeneity test was used to calculate the OR value .The heterogeneity between different studies was analyzed quantitatively . The fixed effect model was used and the percentage I2 was calculated .Results Meta analysis showed that 1943 cases of ischemia-reperfusion injury and 5043 cases of control group were analyzed ,TLR4 gene SNP (rs10759932 ,rs11536891 ,rs11536879) was associated with the risk of ischemic stroke reperfusion injury ,the dominant fixed effect models were (OR=1 .653 ,95％ CI:1 .416 -1 .930 ;OR=1 .653 ,95％ CI:1 .416 -1 .930 ;OR=1 .653 ,95％ CI:1 .416-1 .930 ;);a co-dominant fixed effect model (OR=1 .525 ,95％ CI:1 .350 -1 .723 ;OR= 1 .653 ,95％ CI:1 .416 -1 .930 ;OR= 1 .653 ,95％ CI:1 .416 -1 .930) .Conclusion TLR4 gene SNP (rs10759932 ,rs11536891 ,rs11536879) was associated with the occurrence of ischemic stroke reperfusion inju-ry by Meta-analysis .