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目的观察初诊B型利钠肽(BNP)正常排除急性左心衰竭的特异性。方法筛选急性心肌梗死伴急性左心衰竭患者7例,其BNP正常或轻度升高患者列入观察组,入院急查BNP,24h复查BNP。随机选取20例急性心肌梗死心功能BNP正常患者列入对照组。结果观察组初诊BNP与对照组初诊BNP均数无差别。观察组初次检查BNP与复查BNP均数有差异。结论对一些不明原因的呼吸困难患者单纯根据BNP无明显增高排除急性左心衰竭是武断的。
Objective To observe the specificity of newly diagnosed type B natriuretic peptide (BNP) in patients with acute left heart failure. Methods Seven patients with acute myocardial infarction and acute left heart failure were screened. Patients with normal or slightly elevated BNP were enrolled in the observation group, BNP on admission and BNP on 24h. Twenty normal BNP patients with acute myocardial infarction were randomly selected into the control group. Results There was no difference in the number of newly diagnosed BNP between the observation group and the control group. The difference between BNP and BNP in the observation group for the first time. Conclusion It is arbitrary for some unexplained dyspnea patients to exclude acute left heart failure simply without BNP.