Assessment of noninvasive acoustic respiration rate monitoring in patients admitted to an Emergency Department for drug or alcoholic poisoning

To compare respiration rate measurement by an acoustic method and thoracic impedance to capnometry as the reference method, in patients at the Emergency Department after drug or alcoholic poisoning. In this observational study, 30 patients aged 18 or older, hospitalized at the Emergency Department f...

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Bibliographic Details
Published in:Journal of clinical monitoring and computing 2015-12, Vol.29 (6), p.721-726
Main Authors: Guechi, Youcef, Pichot, Amélie, Frasca, Denis, Rayeh-Pelardy, Fatima, Lardeur, Jean-Yves, Mimoz, Olivier
Format: Article
Language:English
Subjects:
Acoustic impedance
Acoustics
Adult
Anesthesiology
Capnography
Cardiography, Impedance
Critical Care Medicine
Drugs
Emergency Service, Hospital
Ethanol - poisoning
Female
Health Sciences
Humans
Impedance
Intensive
Life Sciences
Male
Masks
Medicine
Medicine & Public Health
Middle Aged
Monitoring, Physiologic - methods
Original Research
Patients
Pharmaceutical sciences
Poisoning
Poisoning - physiopathology
Poisoning - therapy
Respiration
Respiratory Rate
Statistics for Life Sciences
Substance-Related Disorders - physiopathology
Substance-Related Disorders - therapy
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Summary:To compare respiration rate measurement by an acoustic method and thoracic impedance to capnometry as the reference method, in patients at the Emergency Department after drug or alcoholic poisoning. In this observational study, 30 patients aged 18 or older, hospitalized at the Emergency Department for drug or alcoholic poisoning, without any contraindication to a face mask and/or a cervical acoustic sensor, were included in the study. They benefited from a simultaneous recording of their respiration rate by the acoustic method (RRa ® , Masimo Corp., Irvine, CA, USA), by thoracic impedance (Philips Intellivue ® MP2, Suresnes, France) and by capnometry (Capnostream ® 20, Oridion, Jerusalem, Israël) through a face mask (Capnomask ® , Mediplus Ltd, Raleigh, NC, USA) for 40–60 min. Of the 86,578 triplets collected, 77,155 (89.1 %) were exploitable. Median (range) respiration rate measured by capnometry was 18 (7–29) bpm. Compared to capnometry, bias and limits of agreement were 0.1 ± 3.8 bpm for the acoustic method and 0.3 ± 5.5 bpm for thoracic impedance. The proportions of RR values collected by acoustic method or by thoracic impedance which differed over 10 or 20 % during more than 15 s, compared to capnometry, were 8.3 versus 14.3, and 1.5 versus 3.8 %, respectively ( p  
ISSN:1387-1307
1573-2614
DOI:10.1007/s10877-015-9658-y