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Clinical and biological acceptance of a fibrocollagen-coated mersylene patch for tracheal repair in growing dogs

Published online by Cambridge University Press:  23 June 2014

F Villegas-Alvarez
Affiliation:
Laboratorio de Cirugía Experimental, Instituto Nacional de Pediatría, Mexico City, Mexico Departamento de Cirugía, Facultad de Medicina, Universidad Nacional Autónoma de México, Mexico City, Mexico
B Pérez-Guillé
Affiliation:
Laboratorio de Cirugía Experimental, Instituto Nacional de Pediatría, Mexico City, Mexico
R E Soriano-Rosales
Affiliation:
Laboratorio de Cirugía Experimental, Instituto Nacional de Pediatría, Mexico City, Mexico
M A Jiménez-Bravo-Luna
Affiliation:
Laboratorio de Cirugía Experimental, Instituto Nacional de Pediatría, Mexico City, Mexico
A Gonzalez-Maciel
Affiliation:
Laboratorio de Microscopía Electrónica, Instituto Nacional de Pediatría, Mexico City, Mexico
S L Elizalde-Velazquez
Affiliation:
Departamento de Radiología, Instituto Nacional de Pediatría, Mexico City, Mexico
R Aguirre-Hernández
Affiliation:
Departamento de Cirugía, Facultad de Medicina, Universidad Nacional Autónoma de México, Mexico City, Mexico
A Ramos-Morales
Affiliation:
Laboratorio de Microscopía Electrónica, Instituto Nacional de Pediatría, Mexico City, Mexico
R Reynoso-Robles
Affiliation:
Laboratorio de Microscopía Electrónica, Instituto Nacional de Pediatría, Mexico City, Mexico
J F González-Zamora*
Affiliation:
Laboratorio de Cirugía Experimental, Instituto Nacional de Pediatría, Mexico City, Mexico
*
Address for correspondence: Dr Jose Francisco González-Zamora, Los Angeles No. 15, Colonia Olímpica, Delegación Coyoacán CP 04710, México DF, México E-mail: jf.gonzalezzamora@gmail.com

Abstract

Background:

Collagen-covered prostheses can be used as a non-circumferential segmental tracheal replacement. However, the applicability of these implants in young subjects has not yet been reported.

Methods:

In this experimental, longitudinal study, dogs aged 29–32 days underwent limited segmental tracheal replacement with a polyester prosthesis or were allocated to a control, untreated group. The dogs were evaluated clinically, endoscopically and tomographically for up to one year.

Results:

Although there was evidence of tracheal growth in the experimental group, tomographic measurements were significantly smaller in this group than in the control group throughout the observation period. At the end of the study, there was no evidence of implant rejection, stenosis or collapse. Normal respiratory epithelium had grown across the implanted membrane in the experimental group.

Conclusion:

The homologous collagen mersylene membrane allowed for limited structural tracheal growth and was functionally integrated into the segmented tracheal wall in growing dogs.

Information

Type
Main Articles
Copyright
Copyright © JLO (1984) Limited 2014 

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