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Research Article

Comparison of Flow Resistance Characteristics and Placement of Two Endotracheal Tubes

Girish G Deshpande, John E Sanford and Sandeep Tripathi
Respiratory Care May 2018, respcare.05183; DOI: https://doi.org/10.4187/respcare.05183
Girish G Deshpande
Division of Pediatric Critical Care, Department of Pediatrics, University of Illinois College of Medicine, Peoria, Illinois
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  • For correspondence: [email protected]
John E Sanford
Department of Respiratory Therapy, OSF St Francis Medical Center, Peoria, Illinois
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Sandeep Tripathi
Division of Pediatric Critical Care, Department of Pediatrics, University of Illinois College of Medicine, Peoria, Illinois
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Abstract

BACKGROUND: In a traditional endotracheal tube (ETT), there is a linear outward pull through its attachment to the ventilator tubing that leads to risk of accidental dislodgement. This study was conducted to assess the ETT flow characteristics and to evaluate providers’ intubation experience using two ETT’s in a simulated setting.

METHODS: Respiratory pressure–volume dynamics for the 2 ETTs were studied in a simulation laboratory by using 3 different flow settings and 2 different test lungs. The time taken for successful intubation on a mannikin was compared by direct observation of 33 separate intubation attempts by 11 different providers. Comfort with intubation by using both tubes was assessed with a Likert scale– based survey. The potential increase in physical and cognitive work load of nurses and respiratory therapists was assessed by the NASA task load index.

RESULTS: There were slightly lower average tidal volumes delivered with SecureTube compared with the standard tube at different peak inspiratory pressures. Similarly, the same tidal volume delivered with a different flow and bag compliance required slightly higher peak inspiratory pressure compared with the standard ETT. Among providers, there was no difference in the average time to intubate when using either tube. All survey respondents (N = 11) rated intubation attempts with the SecureTube to be very easy compared with the standard tube. The NASA task load index (N = 26) showed very low task loads on all the tasks.

CONCLUSIONS: There was minimal impact on flow resistance on pressure or volume with the SecureTube compared with the standard tube. Most providers felt comfortable intubating with the SecureTube and took a comparable amount of time to intubate in a simulated setting. We observed low task load scores for securement, maintenance, and manipulation per nurses and respiratory therapists.

  • endotracheal tube
  • unplanned extubation
  • tracheal intubation complications
  • adults
  • pediatrics
  • NASA task load index

Footnotes

  • Correspondence: Girish Deshpande MD, Children’s Hospital of Illinois, 530 NE Glen Oak Ave, Peoria, IL 61637. E-mail: girish{at}uic.edu
  • Copyright © 2018 by Daedalus Enterprises
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Respiratory Care: 67 (7)
Respiratory Care
Vol. 67, Issue 7
1 Jul 2022
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Comparison of Flow Resistance Characteristics and Placement of Two Endotracheal Tubes
Girish G Deshpande, John E Sanford, Sandeep Tripathi
Respiratory Care May 2018, respcare.05183; DOI: 10.4187/respcare.05183

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Comparison of Flow Resistance Characteristics and Placement of Two Endotracheal Tubes
Girish G Deshpande, John E Sanford, Sandeep Tripathi
Respiratory Care May 2018, respcare.05183; DOI: 10.4187/respcare.05183
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Keywords

  • endotracheal tube
  • unplanned extubation
  • tracheal intubation complications
  • adults
  • pediatrics
  • NASA task load index

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