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Related Experiment Video

Updated: Jul 4, 2026

Heterotopic and Orthotopic Tracheal Transplantation in Mice used as Models to Study the Development of Obliterative Airway Disease

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Published on: January 21, 2010

Permanent tracheostomy for long-term respiratory studies.

Carlo R Bartoli¹, Ichiro Akiyama, Kazunori Okabe

¹Department of Environmental Health, Harvard School of Public Health, Boston, Massachusetts 02115, USA. cbartoli@hsph.harvard.edu

The Journal of Surgical Research

|September 4, 2007

Summary

This summary is machine-generated.

A new surgical technique creates permanent tracheal stomas in dogs for long-term respiratory studies. This cannula-free method requires minimal maintenance and allows for repeat intubation and aerosol administration.

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Area of Science:

Veterinary Surgery
Respiratory Physiology
Animal Models

Background:

Chronic respiratory studies in dogs often require invasive procedures.
Existing methods may involve significant maintenance or limitations in data collection.
A need exists for a reliable, low-maintenance airway access method for long-term canine respiratory research.

Purpose of the Study:

To describe a modified surgical technique for creating a permanent, anterior tracheal-wall stoma in dogs.
To evaluate the feasibility and long-term viability of these stomas for respiratory research.

Main Methods:

A surgical procedure involving removal of portions of tracheal rings 2-4 to create an oval stoma (approx. 2 x 1 cm).
Dermal tissue was secured to cartilage and tracheal mucosa, allowing skin to grow flush with the tracheal mucosa at the stomal opening.
Daily stoma cleaning and weekly fur clipping were the only required maintenance.

Main Results:

Stomas remained viable in long-term animals for over 70 months (maximum 126 months).
Postmortem examinations revealed minimal tracheal stenosis (<10% in most cases).
Histopathology showed minimal chronic inflammation, with no evidence of necrosis or infection.

Conclusions:

This modified tracheal stoma technique is practical and dependable for long-term respiratory studies in conscious dogs.
It facilitates repeat intubation and aerosol administration, enabling examination of acute and chronic respiratory effects.
The cannula-free approach minimizes maintenance and supports extended research durations.