Objective:To compare diagnostic effect between coronary CT angiography (CTA) and intravascular ultra-sound (IVUS) for coronary calcified lesion .Methods:A total of 50 patients ,who were diagnosed as coronary heart disease (CHD) or suspected CHD in our hospital ,were selected .All patients received coronary CTA and IVUS ex-amination .Characteristics of coronary artery plaques and CT values of different types of plaques were observed , coronary CTA diagnostic effect was evaluated according IVUS as control .Results:There were no significant differ-ence between two methods in plaque area ,plaque burden and lumen area;CT value of calcified plaques was signifi-cantly higher than those of fibrous plaques and fatty plaques [ (725.68 ± 68.42) Hu vs .(58.12 ± 7.05) Hu ,(60.21 ± 6.78) Hu ,P<0.01 both];Sensitivity ,specificity ,accuracy ,positive predictive value and negative predictive val-ue of coronary CTA for diagnosing calcified plaques were 92. 86% ,92. 86% ,92. 86% ,81. 25% and 97. 50% respec-tively .Conclusion:Coronary CT angiography possesses higher diagnostic effect for qualitative and quantitative de-tection of coronary calcified lesions ,which can be regarded as a preferred screening method .

Objective:To explore therapeutic effect of esmolol hydrochloride combined amlodipine on patients with hyper-tension complicated aortic dissection (AD) and its influence on patient's blood pressure (BP) and heart rate (HR) .Meth-ods:A total of 110 patients with hypertension complicated AD were randomly and equally divided into amlodipine group and combined treatment group (received amlodipine and esmolol) .Results:Compared with before treatment , after treat-ment 0. 5 ,1. 5 and 7h ,there were significant reductions in systolic blood pressure (SBP) and diastolic blood pressure (DBP) in both groups ,P<0.01 ,on 7h after treatment ,SBP level of combined treatment group significantly reduced than that of amlodipine group [(101.5 ± 7.8) mmHg vs .(123.4 ± 10.2) mmHg ,P<0.01];on 0.5 ,1.5 and 7h after treatment ,HR and rate pressure product (RPP) of combined treatment group significantly reduced than those of amlodipine group , P<0. 01 all. Compared with amlodipine group after treatment , there were significant rise in standard-reaching rates of BP (56.36% vs .87.27% ) ,HR (38.18% vs .92.73% ) and BP+HR (25.45% vs .81.82% ) in combined treatment group , P<0.01 all. Conclusion:Esmolol combined amlodipine can control blood pressure and heart rate rapidly ,safely and effec-tively in patients with hypertension complicated aortic dissection .

Objective: To explore the predictive value of fractional lfow reserve (FFR) level for long-term prognosis in patients after coronary drug-eluting stent (DES) implantation, and to analyze the relevant factors affecting the level of post-operative FFR. Methods: A total of 135 patients who received DES implantation in our hospital from 2012-01 to 2013-07 with coronary intermediate lesion at (50-80) % were studied. The relevant factors for MACE occurrence were studied by multivariate logistic regression analysis, the post-stent FFR level for predicting the long term prognosis after DES implantation was ifnally analyzed by ROC curve. Results: All patients ifnished 1 year follow-up study including 104 male and 31 female with the mean age of (63 ± 9) years. The post-stent FFR level was lower in MACE group than that in Non-MACE group, (0.82 ± 0.07) vs (0.87 ± 0.06),P=0.004. Multivariate logistic regression analysis presented that the higher level of post-stent FFR was the protective factor for MACE occurrence (OR=0.212,P=0.039); the post-stent FFR level had certain predictive value for MACE occurrence at 1 year after DES implantation (AUC=0.706,P=0.006); Kaplan-Meier survival study showed that the patients with post-stent FFR<0.875 had the less MACE occurrence than those with FFR≥0.875,P=0.012. Multivariate logistic regression analysis also indicated that post-stent FFR≥0.875 was positively related to right coronary target vessel, higher pre-operative FFR level and larger stent diameter.Conclusion: Post-stent FFR level had certain predictive value for MACE occurrence in patients at 1 year after DES implantation, the patients with post-stent FFR≥0.875 had the lower MACE occurrence rate than those with FFR<0.875.