Objective To explore the value of left atrium volume index (LAVI) in the diagnosis of heart failure with preserved ejection fraction (HFPEF). Methods Seventy-seven patients with HFPEF and 33 patients without HFPEF who had been treated from May 2012 to September 2013 in Guangdong General Hospital were en-rolled. The clinical data and a series of ultrasound parameters were collected and analysed. The relationship between LAVI, LAV, and other indexes of diastolic function was determined by Pearson correlation analysis. The value of LAVI and LAV for diagnosing HFPEF was compared by the ROC curve. Results LAVI and LAV of were signifi-cantly greater in HFPEF group than in non-HFPEF group. LAV and LAVI were significantly associated wtih HEPEF. The area under the ROC curve (AUC) of LAVI increased significantly as compared with the AUC of LAV (0.832 vs. 0.799, P<0.05). With a cut-off value of 30 mL/m2, the specificity and sensitivity for diagnosing HEPEF were 64.9%and 84.8%, respectively. Conclusions LAVI may be valuable in the diagnosis of HFPEF.

OBJECTIVETo explore the relationship between the apolipoprotein ApoA1-75 bp polymorphism and risk for dyslipidemia and coronary artery disease (CAD).

METHODSA total of 723 patients (mean age (62.4 ± 10.2) years old) admitted to Guangdong General Hospital from 2011 to 2013 were enrolled. They were subdivided into CAD group (n = 444) and non-CAD (n = 279) group according to the result of coronary angiography (CAG). Clinical data including the profiles of lipids, -75 bp gene polymorphisms and Gensini scores were analyzed to determine the correlation between -75 bp gene polymorphisms, lipid profile and CAD.

RESULTFrequency of male gender, history of diabetes and smoking, TC, TG, LDL-C and ApoB level were significantly higher and HDL-C level was significantly lower in CAD group than in non-CAD group (all P < 0.05). Frequency of A allele was significantly lower in CAD group than in non-CAD group (43.7% (194/444) vs. 56.6% (158/279) , P = 0.003). The ApoA1-75 bp gene polymorphism was significantly correlated with CAD (P < 0.005). Multivariate logistic regression analysis showed that -75 bp gene polymorphism mutation (OR = 0.649, P = 0.021) is an independent protective factor for coronary heart disease.

CONCLUSIONApoA1-75 bp gene polymorphism is linked with risk of dyslipidemia and CAD.

Aged ; Alleles ; Apolipoprotein A-I ; genetics ; Apolipoproteins B ; Coronary Artery Disease ; genetics ; Coronary Disease ; Diabetes Mellitus ; Dyslipidemias ; genetics ; Female ; Humans ; Lipids ; Male ; Middle Aged ; Mutation ; Polymorphism, Genetic ; Risk Factors ; Smoking