Objective: To explore the therapeutic effect and safety of target-dose metoprolol in treating chronic heart failure (CHF) patients complicated with diabetes mellitus (DM). Method s : One hundred and fifty-four elderly patients were randomly divided into an observation group and a control group (n=77), which were treated with target-dose metoprolol and conventional therapy, and routinely treated respectively. The New York Heart Association (NYHA) classification, left ventricular end-systolic diameter (LVESD), left ventricular end-diastolic diameter (LVEDD), left ventricular ejection fraction (LVEF), 6-min walking distance and medication safety of the two groups were compared.
Results: Compared with the results before treatment, the NYHA classification, LVESD, LVEDD, LVEF and 6-minutes walking distance of both groups were significantly improved (P<0.05), with significantly better results in the observation group than those in the control group after treatment (P<0.05). In the 6 months of follow-up, the incidence of cardiac events in the observation group (3.90%) was significantly lower than that of the control group (14.29%) (P<0.05). The levels of average fasting blood sugar and glycosylated hemoglobin in the groups showed no significant differences (P>0.05).
Conclusion: Treating CHF patients complicated with DM with target-dose metoprolol can obviously boost the cardiac function and exercise tolerance, leading to satisfactory clinical therapeutic effect, high security and moderate tolerance.
Keywords: Chronic heart failure; Diabetes mellitus; Metoprolol; Safety; Therapeutic effect.