摘要:
目的对比舒张性心力衰竭(DHF)和收缩性心力衰竭(SHF)患者血清N末端一脑钠肽前体(NT-proBNP)水平的变化及临床意义。方法选择失代偿性DHF患者63例为DHF组,失代偿性SHF患者65例为SHF组,无器质性心脏病者45例为对照组。所有受试者均采用NYHA分级法分级诊断心功能,电化学发光双抗体夹心免疫法检测血清NT-proB-NP水平,心脏彩色多普勒超声测定左心室射血分数(LVEF)。分别比较DHF组和SHF组与对照组血清NT-proBNP水平,分析DHF和SHF患者血清NT—proBNP水平与NYHA心功能级别的关系,对比同-NYHA心功能级别的DHF和SHF患者血清NT—proBNP水平。结果DHF组和SHF组的血清NT—proBNP水平均显著高于对照组(均P〈0.05),并随NYHA心功能级别增高而升高(均P〈0.05),各NYHA心功能级别的SHF患者血清NT—proBNP水平均显著高于同一NYHA心功能级别的DHF患者(均P〈0.05)。结论血清NT—proBNP水平能较好地反映DHF和SHF患者的心功能状态,有助于DHF和SHF的诊断和病情评估,并对同一NYHA心功能级别的DHF和SHF具有一定的鉴别诊断意义。