Monitoring the respiratory rate by miniature motion sensors in premature infants: a comparative study

作者：Kohn S; Waisman D^*; Pesin J; Faingersh A; Klotzman I C; Levy C; Hirshberg G; Rotschild A; Lande**erg A

来源：Journal of Perinatology, 2016, 36(2): 116-120.

DOI：10.1038/jp.2015.173

OBJECTIVE: Existing respiratory rate (RR) monitors suffer from inaccuracy. The study assesses the accuracy of a novel modality that monitors lung ventilation with miniature motion sensors.
STUDY DESIGN: RR was measured by three methods: impedance technology, motion sensors and visual count, in babies (n=9) that breathed spontaneously or with respiratory support and babies (n = 12) that received high-frequency oscillatory ventilation (HFOV).
RESULTS: A line close to equality (slope = 0.96, r(2) = 0.83) was obtained between the motion sensor and the visual count of the RR with narrow 95% limits of agreements (<14.0 b.p.m.). The relationship between the impedance and the visual count showed a lower correlation (r(2) = 0.65) and wider 95% limits of agreements (21.4 b.p.m.). The motion sensor- and the ventilator-determined RRs demonstrated a good agreement during HFOV, whereas the impedance failed to measure the RR during HFOV.
CONCLUSION: Monitoring RR with motion sensors is more accurate compared with the impedance, in infants, in all ventilation modes.

• 出版日期2016-2