在大量人群中使用可穿戴设备检测心脏动:Fitbit心脏研究
Steven A Lubitz1,2, Anthony Z Faranesh3, Caitlin Selvaggi4
1Cardiac Arrhythmia Service and Cardiovascular Research Center (S.A.L.), Massachusetts General Hospital, Boston, MA.
Circulation
|September 23, 2022
概括
带有PPG传感器的可穿戴设备可以检测心律不规则,有可能识别未诊断的心房动 (AF). 一个新的算法在一项大型临床试验中显示出高准确性, 表明可穿戴设备可以帮助早期检测AF.
科学领域:
- 心脏病学
- 生物医学工程
- 数字健康
背景情况:
- 未诊断的心房会导致可预防的发病率.
- 带有光电脉冲图 (PPG) 传感器的消费者可穿戴设备提供了广泛脉冲率监测的潜力.
- 基于PPG的算法可检测心律不规则的未被诊断的AF, 但最小化错误阳性是至关重要的.
研究的目的:
- 评估一种基于PPG的新型算法,用于检测未被诊断的AF使用手腕设备.
- 评估算法的不规则心律检测 (IHRD) 对并发性AF的积极预测值.
主要方法:
- 使用兼容Fitbit设备和智能手机的美国成年人 (≥22岁) 的远程临床试验.
- 使用新的算法对PPG数据进行分析,检查重叠的5分钟脉冲窗口 (动态图).
- 患有IHRD (11次连续不规则的行程图) 的参与者接受了远程医疗访问和1周的门诊心电图贴片监测.
主要成果:
- 超过455,000名参与者;1%的参与者经历了IHRD.
- 在IHRD通知后使用可分析心电图贴片监测器的1057名参与者中,有32. 2%的参与者有AF.
- 对于同时发生的肌肉发作,IHRD的积极预测值为98. 2% (95% CI,95. 5%- 99. 5%),对于65岁以上的患者则为97. 0%.
结论:
- 一个针对Fitbit设备的新型PPG软件算法显示出检测AF的高正预测值.
- 该算法成功识别了可能患有动脉的参与者,随后的心电图监测证实了这一点.
- 可穿戴设备有望帮助识别未被诊断的肌肉功能障碍患者.
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