Effect of averaging time and respiratory pause time on the measurement of acoustic respiration rate monitoring

Autor: Jun Honda, Masahiro Murakawa, Satoki Inoue
Jazyk: angličtina
Rok vydání: 2023
Předmět:
Zdroj: JA Clinical Reports, Vol 9, Iss 1, Pp 1-5 (2023)
Druh dokumentu: article
ISSN: 2363-9024
DOI: 10.1186/s40981-023-00654-4
Popis: Abstract Background Acoustic respiration rate (RRa) monitoring is a method of continuously measuring respiratory rate using a signal from an acoustic transducer placed over the airway. The purpose of the present study is to examine how the averaging time and respiratory pause time settings of an RRa monitor affect the detection time of sudden respiratory rate changes. Methods A total of 40 healthy adult volunteers were included in the study. First, we measured the apnea detection time (apnea test) by dividing them into two groups (N = 20 each), one with a respiratory pause time setting of 20 s and the other with 40 s. Each group performed two apnea tests with an averaging time setting of 10 and 30 s. Next, we measured the tachypnea detection time (tachypnea test) for half of the subjects (N = 20) with two averaging time settings of 10 and 30 s. For each test, three measurements were taken, and the average of the three measurements was recorded. Results There was no significant difference in the apnea detection time between the averaging time set at 10 and 30 s regardless of whether the respiratory pause time was set at 20 or 40 s. However, the apnea detection time was significantly shorter with the respiratory pause time of 20 s than 40 s, regardless of whether the averaging time was set at 10 or 30 s (p
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