This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

No abstract

hospital were recruited. The patients were divided into three groups according to their risk factors. The patients without hypertension and diabetes were included into Group A (n¼95). The patients with high blood pressure or diabetes were included into group B (n¼221) and the patients with both of high blood pressure and diabetes were included into group C (n¼72). Coronary artery calcification score, lipid profiles (lipoprotein (a), LDL, HDL, TG, TC) and coronary angiography were determined in each group. Results Among the 3 groups, there is no significant difference between sex, drinking history, smoking history; there is significant difference between age and the incidence of coronary heart disease among the 3 groups (age F¼5.737, p¼0.005; coronary heart disease F¼6.283, p¼0.002. Coronary artery calcification score is significantly higher in group C than that of groups A (groups C 256.96430.199 VS group A 103.746299.85, p¼0.011). Coronary artery calcification score was positively correlated with lipoprotein (a) (p¼0.005), age (p¼0.021) in group A. Coronary artery calcification score was positively correlated with low-density lipoprotein (p¼0.018), age (p¼0.000) in group B. There is no significantly correlation between coronary artery calcification score and lipid profiles in group C. Summary analysis coronary artery calcification score was positively correlated with LP (a) (p¼0.013), low-density lipoprotein (p¼0.021), age (p¼0.000). Conclusion In the low-risk coronary heart disease group, lipoprotein (a) is positively correlated with coronary calcification score, which suggests lipoprotein (a) is an independent risk factor for coronary artery calcification for these apparently low risk patients. The present study may contribute to the early diagnosis and intervention of coronary artery disease for those patients. Objective To evaluate the feasibility of screening sleep apnoeahypopnoea syndrome (SAHS) from ECGederived respiration (EDR) of ambulatory ECG (AECG) monitoring. Methods The overnight sleep investigation was administered to 80 subjects by polysomnogram (PSG) and 24 h AECG monitoring simultaneously during February through November, 2004. The ECG analysers did not know the PSG results at all. They were both asked to give the apnoea hypopnoea index (AHI) by EDR and PSG respectively. The PSG result was considered as the gold standard so as to evaluate the feasibility of screening SAHS from EDR of AECG monitoring. Results The average age, male gender, body mass index, history of hypertension were higher in the SAHS (+) patients than those of the SAHS (-) patients. Automatic analysis was performed with software in a sensibility of 75%, 87.5% and 100% respectively. When software sensibility adjusted to 75%, the sensitivity of screening SAHS with EDR was 26.7%, with the specificity of 80%, the positive predictive value of 80%, the negative predictive value of 26.7%, the diagnose accordance rate of 40%. When software sensibility was adjusted to 87.5%, the sensitivity of screening SAHS with EDR was 55%, with th...

No abstract