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Availability of portable capnometers in children with tracheostomy
Author(s) -
Hotta Masashi,
Hirata Katsuya,
Nozaki Masatoshi,
Mochizuki Narutaka,
Hirano Shinya,
Wada Kazuko
Publication year - 2021
Publication title -
pediatrics international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.49
H-Index - 63
eISSN - 1442-200X
pISSN - 1328-8067
DOI - 10.1111/ped.14516
Subject(s) - medicine , capnography , confidence interval , anesthesia
Background A capnometer is a noninvasive monitor that is used to assess patients' respiratory status. This study was performed to evaluate the availability of a portable capnometer in children with tracheostomy. Methods This retrospective study included children with tracheostomy who were treated at the Osaka Women's and Children's Hospital Osaka, Japan, from 1 September 2018 to 31 October 2019. We assessed the correlation between the partial pressure of venous carbon dioxide (PvCO 2 ) and end‐tidal carbon dioxide tension (EtCO 2 ) using a portable capnometer (EMMA; Masimo, Irvine, CA, USA). Results Nine infants and 43 simultaneous PvCO 2 –EtCO 2 pairs were analyzed. The correlation coefficient of these pairs was 0.87 (95% confidence interval, 0.77–0.93; P < 0.001). The Bland–Altman plot showed that EtCO 2 was on average 10.0 mmHg lower than its paired PvCO 2 value (95% limits of agreement, 1.0–19.1). The difference between PvCO 2 and EtCO 2 was significantly greater in patients on ventilators. Conclusions The portable capnometer evaluated in this study (EMMA) was readily available and useful for assessment of the respiratory condition in children with tracheostomy.