达格列净治疗2型糖尿病合并射血分数轻度下降心力衰竭患者的临床疗效

Clinical efficacy of dapagliflozin in the treatment of type 2 diabetes mellitus with heart failure with mildly reduced ejection fraction

目的:观察达格列净治疗2型糖尿病(T2DM)合并射血分数轻度下降(HFmrEF,40%≤LVEF<50%)的心力衰竭患者的临床疗效。方法:选取2019年10月~2021年10月入住本院的T2DM合并HFmrEF患者共84例,采用随机数字表法分为对照组和研究组各42例。两组均使用基础降糖及规范抗心衰治疗,同时研究组加用达格列净治疗。治疗9个月后,比较两组治疗前后心功能指标:左室射血分数(LVEF)、血清N末端脑钠肽前体(NT-proBNP),运动耐力指标:6 min步行距离(6MWD),NYHA心功能分级,明尼苏达心力衰竭生活质量调查表(MLHFQ)评分及主要不良心脏事件(MACE)。结果:治疗后,两组患者的NT-proBNP水平降低、LVEF升高,6MWD延长,NYHA心功能分级提升,MLHFQ评分降低,各指标在治疗后相比,两组内均优于本组治疗前,两组间研究组均优于对照组,差异均具有统计学意义(P<0.05)。与对照组相比,研究组发生MACE事件及药物不良反应的患者例数更少。结论:达格列净治疗T2DM合并HFmrEF患者,可改善心功能指标、提高运动耐力、提升NYHA心功能分级、改善患者生活质量,减少MACE事件的发生,安全性好。

Objective:To observe the clinical efficacy of dapagliflozin in the treatment of type 2 diabetes mellitus(T2DM)complicated with heart failure with mildly reduced ejection fraction(HFmrEF,40%≤LVEF<50%).Methods:A total of 84 patients with T2DM complicated with HFmrEF hospitalized in our hospital from October 2019 to October 2021 were selected,and random number table method was used to divide the control group and the study group into 42 cases.Both groups used basal hypoglycemic and standardized anti‑heart failure therapy,and the study group was treated simultaneously with dapagliflozin.Nine months later,the following indexes were compared between the two groups before and after treatment:the cardiac function indicators:N‑terminal pro brain natriuretic peptide(NT‑proBNP),left ventricular ejection fraction(LVEF);exercise endurance:6‑minute walk distance(6MWD),NYHA cardiac function class,the score of the Minnesota living with heart failure questionnaire(MLHFQ)and the incidence of major adverse cardiovascular events(MACE).Results:Nine months later,the two groups showed decreased NT‑proBNP level,increased LVEF,prolonged 6MWD,improved NYHA cardiac function grade,decreased MLHFQ score,and statistically significant differences within both groups compared with before treatment(P<0.05),after treatment,significant differences were displayed between the two groups(P<0.05).Less patients had MACE events and adverse drug reactions in the study group compared with the control group.Conclusion:Dapagliflozin in the treatment of T2DM patients with HFmrEF can improve cardiac function indicators,improve exercise endurance,improve NYHA cardiac function class,improve patient's quality of life,and reduce the incidence of MACE events,with no obvious side effects.