目的 观察分析急性左心衰竭患者应用不同剂量硝酸甘油对血浆中氨基末端B型脑钠肽(NT-proBNP)的影响。方法 选取我院120例急性左心衰竭患者作为研究对象,采用随机数字表法进行分组,其中对照组给予小剂量硝酸甘油,观察组患者采取大剂量硝酸甘油,观察并比较两组患者用药后NT-proBNP的变化情况及临床疗效。结果 经不同剂量药物治疗后,观察组总有效率(96.67%)明显高于对照组(68.33%),差异有统计学意义( χ²=16.681,P＜0.05);用药前,两组患者NT-proBNP水平相近,差异无统计学意义(t=0.384,P＞0.05);用药后6 h、12 h及24 h,观察组患者NT-proBNP指标水平有明显降低,较对照组改善明显,差异有统计学意义(t=17.470、13.988、13.900,P＜0.05)。结论 在常规治疗基础上,应用硝酸甘油微泵注入,采用大剂量硝酸甘油给药治疗急性左心衰竭,可在短时间内降低患者NT-proBNP指标水平,缓解患者症状,临床效果显著。

Objective To observe and analyze the influence and significance of different doses of nitroglycerin on plasma amino-terminal pro-B-type natriuretic peptide (NT-proBNP) in patients with acute left ventricular failure. Methods One hundred and twenty patients with acute left heart failure were randomly assigned into control group and observation group. Patients in the control group were treated with low dose of nitroglycerin, while patients in the observation group were given high dose of nitroglycerin. NT-proBNP and clinical efficacy in the two groups were observed and compared after treatment. Results After different doses of drug treatment, the overall response rate in the observation group (96.67%) was significantly higher than that in the control group (68.33%), with statistically significant difference (χ²=16.68, P<0.05). Before treatment, NT-proBNP levels were similar, without statistically significant difference (t=0.384, P>0.05). At 6, 12 and 24 hours after treatment, NT-proBNP level was obviously decreased, which was improved than the control group, there were statistically significant differences (t=17.470, 13.988, 13.900, P<0.05). Conclusion Conventional treatment combined high-dose nitroglycerin micro-injection may reduce NT-proBNP indicator levels, relieve symptoms, and have significant clinical effect in patients with acute left heart failure.