Noninvasive Acoustic Respiration Rate Monitoring

Abstract

A new acoustic method for Respiratory Rate Monitoring (RRa ® ) has shown good reliability when used in patients without tracheal intubation. The objective of this review is to assess the usefulness of acoustic respiratory rate monitoring. In contrast to facemask capnometry, the acoustic monitor was well tolerated; contrary, capnometry was not well tolerated, because several patients removed the facemask. In intravenous general anesthesia, the acoustic monitor is useful for continuous monitoring of respiratory rate in spontaneously breathing patients. In pediatric patients, acoustic monitor showed good agreement and similar accuracy and precision between capnometry but was better tolerated.In conclusion, the acoustic respiratory monitoring is useful for non-intubated patients.