监测手环在心力衰竭患者6分钟步行试验中的应用初探

Preliminary study of monitoring bracelet in measuring 6-minute walk test in heart failure patients

目的 观察监测手环测量6 min步行试验(6MWT)的可行性.方法 入选2016年7月至12月于中国医学科学院阜外医院心衰病房住院的心力衰竭患者,同步佩戴遥测心电监护与监测手环进行6MWT,分别记录患者的静息心率和6MWT后即刻心率.监测手环同时记录步行距离,并与标准方法测量距离相比较.结果 共纳入88例心力衰竭患者,平均年龄为(50.22±8.85)岁,其中男性占81%(71/88).监测手环测量的6 min步行距离显著高于标准方法所测距离[(442.85±81.00)m比(377.91±86.13)m,P<0.叭];监测手环测量的静息心率和6MWT后即刻心率较心电监护测量结果无显著统计学差异[静息心率:(73.14±10.26)次/min比(74.28±10.40)次/min,P=0.587;6MWT后即刻心率:(87.53±13.68)次/min比(89.09±13.82)次/min,P=0.162].结论 监测手环测量的6 min步行距离高于标准方法的测量结果,可能导致高估心力衰竭患者的心功能水平;监测手环可通过监测心率为心衰患者进行居家康复提供参考.

Objective To investigate the feasibility of monitoring bracelet in 6-minute walk test(6MWT).Methods Stable heart failure patients hospitalized in Heart Failure Care Unit of Fuwai Hospital from July 2016 to December 2016 were enrolled in our study.Dynamic telemetry ECG recording monitor and monitoring bracelet were used in 6MWT meanwhile,recording resting heart rate(RHR)and immediate heart rate after 6MWT,respectively.Monitoring bracelet also measured walk distance to compare with the distance in the standard method.Result 88 patients were included in our study,with age of(50.22±8.85)years and a male proportion of 81%(71/88).The 6-minute walk distance recorded by monitoring bracelet was significantly longer than standard method[(442.85±81.00)m vs(377.91±86.13)m,P<0.01].There was no significant difference in heart rate before and after 6MWT[RHR:(73.14±10.26)bpm vs(74.28±10.40)bpm,P=0.587;Immediate HR after 6MWT:(87.53±13.68)bpm vs(89.09±13.82)bpm,P=0.162].Conclusion 6-minute walk distance measured by monitoring bracelet is higher than standard measurement,which may overestimate heart function of heart failure patients.In terms of heart rate measurement,monitoring bracelet can provide reference for heart failure patients to perform home-based cardiac rehabilitation in the future.