Tracheal changes in relation to different tracheostomy techniques

Publisher Website
Google Scholar
Abstract
An experimental study on rabbits was undertaken to evaluate the effect of the tracheostomy technique on the development of tracheal stenosis. An operation model was made for the purpose of excluding all pathogenetic factors in the formation of tracheal stenosis, except the surgical procedure. Five different methods were used: A, vertical incision; B, anterior wall flap; C, H-type incision; D, window-type excision; and E, subperichondreal enucleation of cartilage. The cannulation period was 7 days, and animals were kept alive for another 140 days before postmortem examinations were undertaken. Minor macroscopical and microscopical changes were noted. The pathological findings were somewhat more pronounced in groups B, C and E than in the other groups. The tracheostomy technique apparently plays a minor role in the formation of tracheal stenosis.