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A pilot study evaluating the utility of a novel tube cricothyrotomy technique in providing ventilation in small animals using a live porcine model

Authors Hardjo S, Croton C, Haworth MD

Received 21 May 2019

Accepted for publication 1 August 2019

Published 23 August 2019 Volume 2019:10 Pages 111—121

DOI https://doi.org/10.2147/VMRR.S216551

Checked for plagiarism Yes

Review by Single-blind

Peer reviewers approved by Dr Melinda Thomas

Peer reviewer comments 3

Editor who approved publication: Professor Young Lyoo


Sureiyan Hardjo, Catriona Croton, Mark D Haworth

School of Veterinary Science, The University of Queensland, Gatton 4343, Queensland, Australia

Correspondence: Sureiyan Hardjo
School of Veterinary Science, The University of Queensland, Gatton 4343, Queensland, Australia
Email s.hardjo@uq.edu.au

Background: Tube cricothyrotomy has been suggested as a first-choice for emergency surgical airway access in small animals, rather than the more commonly accepted procedures of tracheotomy and needle cricothyrotomy.
Methods: A small pilot study of tube cricothyrotomy in a live porcine model was conducted to evaluate this method. The technique was modified to permit the use of commonly available equipment and ease of application. Following ethics approval, a tube cricothyrotomy was performed on 9 live pigs. The endpoints were the efficacy of ventilation through the tube as measured by end-tidal carbon dioxide, successful placement of the tube and the time taken for placement.
Results: Of the nine pigs, eight had a tube placed successfully, with the median procedure time being 111.5 seconds (range: 35–240 seconds). After 10 mins, the mean end-tidal carbon dioxide was 58.3 mmHg (95% CI: 55.2–61.3 mmHg), with a range of 54–64 mmHg. Tube cricothyrotomy holds promise as a means of rapidly obtaining tracheal access in small animals and temporarily sustaining ventilation in an emergency.
Conclusion: Further detailed investigation is warranted to assess the use of this technique in the small animal emergency setting.

Keywords: cricothyrotomy, tracheostomy, canine, ventilation, airway, obstruction, front of neck access

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