The Use of Catheter Mount Will Result in More Reliable Carbon Dioxide Monitoring under Fluid Exposing Conditions

Introduction. Capnometer can be readily malfunctioned by fluid exposure during treatment of critically ill patients. This study aimed to determine whether placing capnometer distant from the endotracheal tube by connecting direct connect catheter mount (DCCM) is effective in yielding reliable end-ti...

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Main Authors: Yongil Cho, Wonhee Kim, Tae Ho Lim, Hyuk Joong Choi, Jaehoon Oh, Bossng Kang, Youjin Kim, In Young Kim
Format: Article
Language:English
Published: Wiley 2019-01-01
Series:Emergency Medicine International
Online Access:http://dx.doi.org/10.1155/2019/4120127
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author Yongil Cho
Wonhee Kim
Tae Ho Lim
Hyuk Joong Choi
Jaehoon Oh
Bossng Kang
Youjin Kim
In Young Kim
author_facet Yongil Cho
Wonhee Kim
Tae Ho Lim
Hyuk Joong Choi
Jaehoon Oh
Bossng Kang
Youjin Kim
In Young Kim
author_sort Yongil Cho
collection DOAJ
description Introduction. Capnometer can be readily malfunctioned by fluid exposure during treatment of critically ill patients. This study aimed to determine whether placing capnometer distant from the endotracheal tube by connecting direct connect catheter mount (DCCM) is effective in yielding reliable end-tidal carbon dioxide (ETCO2) by reducing capnometer malfunctioning caused by water exposure. Methods. In 25 healthy adults, a prospective, open label, crossover study was conducted to examine the effect of DCCM in mainstream and microstream capnometers under water exposing conditions. The primary endpoint was the comparison of ETCO2 between proximal DCCM (pDCCM) and distal DCCM (dDCCM). Results. For mainstream capnometers, mean ETCO2 was significantly (p < 0.001) higher in dDCCM compared to pDCCM under water exposing conditions (29.5 vs. 19.0 with 5 ml; 33.8 vs. 21.2 with 10 ml; mmHg). Likewise, for microstream capnometers, ETCO2 was greatly higher (p < 0.001) in dDCCM compared to pDCCM (30.5 vs. 13.9 with 5 ml; 29.9 vs.11.4 with 10 mL; mmHg). ETCO2 measured by dDCCM was reliable in microstream settings, whereas it was unreliable in mainstream (correlation coefficient 0.88 vs. 0.27). Conclusions. Application of DCCM onto the capnometer setting seems to be effective in reducing capnometer malfunctioning under fluid exposing conditions, which is obvious in microstream capnometer by producing more reliable ETCO2.
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spelling doaj-art-4e686570d6f943138e742c96e5a0c6b02025-08-20T02:38:47ZengWileyEmergency Medicine International2090-28402090-28592019-01-01201910.1155/2019/41201274120127The Use of Catheter Mount Will Result in More Reliable Carbon Dioxide Monitoring under Fluid Exposing ConditionsYongil Cho0Wonhee Kim1Tae Ho Lim2Hyuk Joong Choi3Jaehoon Oh4Bossng Kang5Youjin Kim6In Young Kim7Department of Emergency Medicine, College of Medicine, Hanyang University, Seoul, Republic of KoreaDepartment of Emergency Medicine, College of Medicine, Hallym University, Seoul, Republic of KoreaDepartment of Emergency Medicine, College of Medicine, Hanyang University, Seoul, Republic of KoreaDepartment of Emergency Medicine, College of Medicine, Hanyang University, Seoul, Republic of KoreaDepartment of Emergency Medicine, College of Medicine, Hanyang University, Seoul, Republic of KoreaDepartment of Emergency Medicine, College of Medicine, Hanyang University, Seoul, Republic of KoreaDepartment of Plant Biology, Rutgers, The State University of New Jersey, New Brunswick, New Jersey, USADepartment of Biomedical Engineering, College of Medicine, Hanyang University, Seoul, Republic of KoreaIntroduction. Capnometer can be readily malfunctioned by fluid exposure during treatment of critically ill patients. This study aimed to determine whether placing capnometer distant from the endotracheal tube by connecting direct connect catheter mount (DCCM) is effective in yielding reliable end-tidal carbon dioxide (ETCO2) by reducing capnometer malfunctioning caused by water exposure. Methods. In 25 healthy adults, a prospective, open label, crossover study was conducted to examine the effect of DCCM in mainstream and microstream capnometers under water exposing conditions. The primary endpoint was the comparison of ETCO2 between proximal DCCM (pDCCM) and distal DCCM (dDCCM). Results. For mainstream capnometers, mean ETCO2 was significantly (p < 0.001) higher in dDCCM compared to pDCCM under water exposing conditions (29.5 vs. 19.0 with 5 ml; 33.8 vs. 21.2 with 10 ml; mmHg). Likewise, for microstream capnometers, ETCO2 was greatly higher (p < 0.001) in dDCCM compared to pDCCM (30.5 vs. 13.9 with 5 ml; 29.9 vs.11.4 with 10 mL; mmHg). ETCO2 measured by dDCCM was reliable in microstream settings, whereas it was unreliable in mainstream (correlation coefficient 0.88 vs. 0.27). Conclusions. Application of DCCM onto the capnometer setting seems to be effective in reducing capnometer malfunctioning under fluid exposing conditions, which is obvious in microstream capnometer by producing more reliable ETCO2.http://dx.doi.org/10.1155/2019/4120127
spellingShingle Yongil Cho
Wonhee Kim
Tae Ho Lim
Hyuk Joong Choi
Jaehoon Oh
Bossng Kang
Youjin Kim
In Young Kim
The Use of Catheter Mount Will Result in More Reliable Carbon Dioxide Monitoring under Fluid Exposing Conditions
Emergency Medicine International
title The Use of Catheter Mount Will Result in More Reliable Carbon Dioxide Monitoring under Fluid Exposing Conditions
title_full The Use of Catheter Mount Will Result in More Reliable Carbon Dioxide Monitoring under Fluid Exposing Conditions
title_fullStr The Use of Catheter Mount Will Result in More Reliable Carbon Dioxide Monitoring under Fluid Exposing Conditions
title_full_unstemmed The Use of Catheter Mount Will Result in More Reliable Carbon Dioxide Monitoring under Fluid Exposing Conditions
title_short The Use of Catheter Mount Will Result in More Reliable Carbon Dioxide Monitoring under Fluid Exposing Conditions
title_sort use of catheter mount will result in more reliable carbon dioxide monitoring under fluid exposing conditions
url http://dx.doi.org/10.1155/2019/4120127
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