Department of Pneumology, University Medicine Essen - Ruhrlandklinik, West German Lung Center, University Duisburg-Essen, Duisburg, Germany.
Faculty of Sleep and Telemedicine, University Medicine Essen - Ruhrlandklinik, West German Lung Center, University Duisburg-Essen, Duisburg, Germany.
Sleep Breath. 2021 Mar;25(1):145-149. doi: 10.1007/s11325-020-02067-4. Epub 2020 Apr 15.
In this study, we assessed the diagnostic accuracy of the device VitaLog (SWG Sportwerk GmbH & Co. KG, Dortmund, Germany) for estimation of respiratory rate (RR) variability.
VitaLog is a minimal-contact biomotion device that is placed under the mattress topper. It senses respiratory effort and body movement using a piezoelectric sensor. Diagnostic accuracy was determined in 103 patients referred to our sleep laboratory for suspected sleep-disordered breathing (SDB). SDB was defined by AHI ≥ 15/h. Results provided by VitaLog were compared with nasal flow measurement obtained by polysomnography (PSG).
Diagnostic accuracy of VitaLog was excellent. We obtained a correlation of r = 0.99 and a bias of 0.2 cycles per minute (cpm) between VitaLog and PSG-provided nasal flow. Detection RR variability worked nearly identically in patients with and without SDB.
VitaLog is an appropriate method for determination of RR variability based on a minimal-contact biomotion sensor. This device is easy to handle, available at low cost, and suitable for long-term monitoring in the hospital or at home.
在这项研究中，我们评估了 VitaLog（德国多特蒙德 SWG Sportwerk GmbH & Co. KG）设备用于估计呼吸频率（RR）变异性的诊断准确性。
VitaLog 是一种最小接触式生物运动设备，放置在床垫垫套下。它使用压电传感器感应呼吸努力和身体运动。在我们的睡眠实验室中，有 103 名疑似睡眠呼吸障碍（SDB）的患者被转诊接受评估，以确定诊断准确性。SDB 通过 AHI≥15/h 定义。VitaLog 提供的结果与通过多导睡眠图（PSG）获得的鼻流量测量进行比较。
VitaLog 的诊断准确性非常好。我们获得了 VitaLog 和 PSG 提供的鼻流量之间的 r = 0.99 的相关性和 0.2 个每分钟周期（cpm）的偏差。RR 变异性的检测在 SDB 患者和无 SDB 患者中几乎相同。
VitaLog 是一种基于最小接触式生物运动传感器确定 RR 变异性的合适方法。该设备易于操作，成本低，适合在医院或家中进行长期监测。
