Study on the characteristics of blood pressure levels in patients with primary hypertension and coronary heart disease / 重庆医学

ABSTRACT

Objective To study and analyze the 24 h ambulatory blood pressure and ambulatory electrocardiography in pa-tients with primary hypertension and coronary heart disease,the characteristics of blood pressure level of patients with hypertension and coronary heart disease and its correlation with myocardial ischemic burden in these patients were explored.Methods Selected by coronary angiography examination,139 cases of patients with high blood pressure,according to the results of coronary artery ex-amination were divided into high blood pressure with coronary heart disease group(observation group)74 cases and simple hyper-tension group(control group)65 cases.Two groups all were used 24 hours ambulatory blood pressure monitoring and ambulatory ECG monitoring.The relevant data were analyzed.Results (1)Observation group nocturnal systolic blood pressure was higher than the average in control group,the time of diastolic pressure was lower than the control group,24 hours and the average artery pres-sure was lower than the control group,the difference was statistically significant(P <0.05).(2)Total ischemia burden(TIB)and the corresponding systolic pressure,diastolic pressure,pulse pressure levels existed significant correlation(respectively r =0.409, P =0.000;r=-0.306,P =0.008;r =0.61 5,P =0.000);there was a significant positive correlation between day TIB and corre-sponding systolic pressure,pulse pressure level(r=0.41 7,P =0.000;r=0.402,P =0.001);there was a significant positive correla-tion between TIB and the corresponding nighttime systolic blood pressure,pulse pressure level(r=0.5 1 1,P =0.000;r=0.596,P =0.000).Conclusion The levels of nocturnal systolic pressure,diastolic pressure and the time of 24 hours are higher,and the average artery pressure levels are relatively low.There is a significant correlation with the myocardial ischemic burden.