Abstract
Objective To explore the detection significance of brain natriuretic peptide in peripheral blood of patients with coronary heart disease(CHD).Methods 260 patients with CHD were selected and divided into 95 cases of stable angina pectoris(SAP) group,85 cases of unstable angina pectoris(UAP) group and 80 cases of acute myocardial infarction(AMI) group according to angiographic and clinical diagnosis.Another 80 cases of healthy people which were taken medical examination were selected as the healthy control group.The peripheral blood plasma brain natriuretic peptide concentration of the study objects were detected,and the severity of coronary lesions was quantified by the coronary Gensini score.Results The peripheral blood brain natriuretic peptide average concentration of UAP group and AMI group was (498.00 ± 87.00) ng/L and (936.00 ± 102.25) ng/L,respectively,which were significantly higher than that of the SAP group [(213.46 ± 98.35) ng/L] and the control group [(97.63 ±20.07) ng/L] (t =8.78,12.01,6.26,2.38,all P ＜ 0.05).The peripheral blood brain natriuretic peptide concentration of patients with Gensini score≥20 points was significantly higher than that of the patients with Gensini score ＜20points(P ＜ 0.05).Conclusion The peripheral blood brain natriuretic peptide concentration of patients with CHD is correlated with coronary plaque stabilization and lesion severity. Key words: Coronary disease ; Atrial natriuretic factor; Myocardial infarction
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