NCT02725164

Brief Summary

Fires and operating room pollution may occur when anesthesia gases leak into the oropharynx during airway surgery. Investigators sought to measure the concentrations of anesthetic gases that leak into the mouth of children undergoing adenotonsillectomy using cuffed and uncuffed tracheal tubes during spontaneous and controlled ventilation.

Trial Health

100
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
31

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Apr 2016

Shorter than P25 for not_applicable

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

March 25, 2016

Completed
6 days until next milestone

First Posted

Study publicly available on registry

March 31, 2016

Completed
12 days until next milestone

Study Start

First participant enrolled

April 12, 2016

Completed
2 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 1, 2016

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

June 1, 2016

Completed
Last Updated

February 13, 2017

Status Verified

February 1, 2017

Enrollment Period

2 months

First QC Date

March 25, 2016

Last Update Submit

February 10, 2017

Conditions

Keywords

oxygennitrous oxidesevofluranecarbon dioxideendotracheal tuberespiration

Outcome Measures

Primary Outcomes (1)

  • Difference in the oxygen concentration with uncuffed and cuffed tubes during spontaneous or controlled ventilation

    The differences in the oxygen concentration measured in the trachea and the oropharynx with uncuffed and cuffed tubes during spontaneous or controlled ventilation

    8 months

Secondary Outcomes (3)

  • Difference in the nitrous oxide concentration with uncuffed and cuffed tubes during spontaneous or controlled ventilation

    8 months

  • Difference in the carbon dioxide concentration with uncuffed and cuffed tubes during spontaneous or controlled ventilation

    8 months

  • Difference in the sevoflurane concentration with uncuffed and cuffed tubes during spontaneous or controlled ventilation

    8 months

Study Arms (2)

Uncuffed tracheal tubes

PLACEBO COMPARATOR

After tracheal intubation with an uncuffed tube, the interventions will be the oxygen concentration, nitrous oxide concentration, carbon dioxide concentration and sevoflurane concentration measured in the tracheal tube compared with those in the oropharynx during spontaneous and controlled ventilation.

Drug: oxygen concentrationDrug: nitrous oxide concentrationDrug: carbon dioxide concentrationDrug: sevoflurane concentration

Cuffed tracheal tubes

ACTIVE COMPARATOR

After tracheal intubation with a cuffed tube, the interventions will be the oxygen concentration, nitrous oxide concentration, carbon dioxide concentration and sevoflurane concentration measured in the tracheal tube compared with those in the oropharynx during spontaneous and controlled ventilation.

Drug: oxygen concentrationDrug: nitrous oxide concentrationDrug: carbon dioxide concentrationDrug: sevoflurane concentration

Interventions

oxygen concentration will be measured in the tracheal tube and oropharynx during spontaneous or controlled ventilation

Also known as: difference in the oxygen concentration
Cuffed tracheal tubesUncuffed tracheal tubes

nitrous oxide concentration will be measured in the tracheal tube and oropharynx during spontaneous or controlled ventilation

Also known as: difference in the nitrous oxide concentration
Cuffed tracheal tubesUncuffed tracheal tubes

carbon dioxide concentration will be measured from the tracheal tube and in the oropharynx during spontaneous or controlled ventilation

Also known as: difference in the carbon dioxide concentration
Cuffed tracheal tubesUncuffed tracheal tubes

sevoflurane concentration will be measured in the tracheal tube and oropharynx during spontaneous or controlled ventilation

Also known as: difference in the sevoflurane concentration
Cuffed tracheal tubesUncuffed tracheal tubes

Eligibility Criteria

Age1 Year - 6 Years
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17)

You may qualify if:

  • American society of anesthesiologists physical status 1 and 2;
  • fasted
  • scheduled for elective adenotonsillectomy

You may not qualify if:

  • refusal of consent by parents
  • difficult tracheal intubation
  • craniofacial anomalies
  • gastroesophageal reflux
  • malignant hyperthermia
  • randomization to a tracheal tube is unacceptable.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Related Publications (5)

  • Weiss M, Dullenkopf A, Gysin C, Dillier CM, Gerber AC. Shortcomings of cuffed paediatric tracheal tubes. Br J Anaesth. 2004 Jan;92(1):78-88. doi: 10.1093/bja/aeh023.

    PMID: 14665558BACKGROUND
  • Khine HH, Corddry DH, Kettrick RG, Martin TM, McCloskey JJ, Rose JB, Theroux MC, Zagnoev M. Comparison of cuffed and uncuffed endotracheal tubes in young children during general anesthesia. Anesthesiology. 1997 Mar;86(3):627-31; discussion 27A. doi: 10.1097/00000542-199703000-00015.

    PMID: 9066329BACKGROUND
  • Eschertzhuber S, Salgo B, Schmitz A, Roth W, Frotzler A, Keller CH, Gerber AC, Weiss M. Cuffed endotracheal tubes in children reduce sevoflurane and medical gas consumption and related costs. Acta Anaesthesiol Scand. 2010 Aug;54(7):855-8. doi: 10.1111/j.1399-6576.2010.02261.x. Epub 2010 Jun 15.

    PMID: 20560884BACKGROUND
  • Mehta SP, Bhananker SM, Posner KL, Domino KB. Operating room fires: a closed claims analysis. Anesthesiology. 2013 May;118(5):1133-9. doi: 10.1097/ALN.0b013e31828afa7b.

    PMID: 23422795BACKGROUND
  • Raman V, Tobias JD, Bryant J, Rice J, Jatana K, Merz M, Elmaraghy C, Kang DR. Effect of cuffed and uncuffed endotracheal tubes on the oropharyngeal oxygen and volatile anesthetic agent concentration in children. Int J Pediatr Otorhinolaryngol. 2012 Jun;76(6):842-4. doi: 10.1016/j.ijporl.2012.02.055. Epub 2012 Mar 23.

    PMID: 22444738BACKGROUND

MeSH Terms

Conditions

Respiratory Aspiration

Condition Hierarchy (Ancestors)

Respiration DisordersRespiratory Tract DiseasesPathologic ProcessesPathological Conditions, Signs and Symptoms

Study Officials

  • Jerrold Lerman, MD, FRCPC

    Women & Children's Hospital of Buffalo

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
OTHER
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Clinical Professor of Anesthesia

Study Record Dates

First Submitted

March 25, 2016

First Posted

March 31, 2016

Study Start

April 12, 2016

Primary Completion

June 1, 2016

Study Completion

June 1, 2016

Last Updated

February 13, 2017

Record last verified: 2017-02

Data Sharing

IPD Sharing
Will not share