Availability of portable capnometers in children with tracheostomy. Issue 7 (22nd May 2021)

• Record Type: Journal Article
• Authors: Hotta, Masashi; Hirata, Katsuya; Nozaki, Masatoshi; Mochizuki, Narutaka; Hirano, Shinya; Wada, Kazuko
• Is Part Of: Pediatrics international. Volume 63:Issue 7(2021)
• Page Start: 833
• Page End: 837
• Publication Date: 2021-05-22
• Subjects: capnography -- child -- pulmonary gas exchange -- respiration -- tracheostomy; Pediatrics -- Periodicals; 618.92
• DOI: 10.1111/ped.14516
• Languages: English
• ISSNs: 1328-8067

Abstract

Abstract: 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 (PvCO2 ) and end‐tidal carbon dioxide tension (EtCO2 ) using a portable capnometer (EMMA; Masimo, Irvine, CA, USA). Results: Nine infants and 43 simultaneous PvCO2 –EtCO2 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 EtCO2 was on average 10.0 mmHg lower than its paired PvCO2 value (95% limits of agreement, 1.0–19.1). The difference between PvCO2 and EtCO2 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.