A novel and simple method for tracheal intubation in a swine model: Preparing for the era of xenotransplantation

Hyub Huh, Hyong Hwan Lim, Ji Yeong Kim, Hye Won Shin, Hae Ja Lim, Suk Min Yoon, Seung Zhoo Yoon, Hye Won Lee

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


Objectives: Organ transplant in humans is an established therapy for a variety of end-stage organ diseases. However, due to organ shortages and lack of donors, the need for xenotransplant has gradually increased. Xenotransplantation has great potential to solve many of the problems facing organ transplantation. Pigs are being developed as xenogeneic organ donors for use in humans. In this study, we propose a novel and simple method for tracheal intubation in a swine model using neuromuscular blocking agents and laryngeal mask airway. Material and Methods: Eight Yorkshire pigs were used for the 2 separate experiments, which were conducted 1 week apart. In the first experiment, an anesthesiologist with no previous comparable experience performed endotracheal intubation of pigs. One week later, using the same pig, a second experiment was performed by an experienced anesthesiologist. Anesthesia was induced with intramuscular injection of a mixture of 1 mg/kg xylazine (Rompun, Bayer Korea Ltd., Seoul, Korea) and 7 mg/kg Zoletil (a mixture of tiletamine hydrochloride and zolazepam hydrochloride, Virbac Laboratory, Carros, France). The laryngeal mask was then placed, and 0.15 mg/kg vecuronium bromide was injected intravenously. Tracheal intubation was attempted after mask removal. The duration and number of intubation attempts were recorded, and the degree of intubation difficulty was scored. Results: In all cases, the laryngeal mask was easily inserted, and endotracheal intubation was successfully completed. Oxygen saturation did not fall below 95%, and there were no hypoxemia episodes. Degree of intubation difficulty and duration were not significantly different between the 2 anesthesiologists. Conclusions: Tracheal intubation in our swine model was successfully performed using neuromuscular blocking agents and laryngeal masks without resulting in hypoxemia, with even anesthesiologists who are unfamiliar with endotracheal intubation of pigs easily able to do so using our protocol. Therefore, our protocol will enable all investigators to perform successful tracheal intubation in swine models.

Original languageEnglish
Pages (from-to)453-457
Number of pages5
JournalExperimental and Clinical Transplantation
Issue number4
Publication statusPublished - 2017 Aug
Externally publishedYes

Bibliographical note

Funding Information:
The authors declare no conflicts of interest. This report contains a portion of the master’s dissertation of Hyub Huh. This work was supported by a grant from the Korea Health Technology R&D Project through the Korea Health Industry Development Institute, funded by the Ministry of Health & Welfare, Republic of Korea (grant number: HI13C2181).

Publisher Copyright:
© Başkent University 2017 Printed in Turkey. All rights reserved.


  • Airway management
  • Laryngeal mask airway
  • Neuromuscular blocking agents
  • Pig

ASJC Scopus subject areas

  • Transplantation


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