We have previously reported on a straight artificial @entity825 developed by our group that can be applied to the cervical and thoracic @entity825 . In this study, a new Y-shaped artificial @entity825 was designed and adapted for experimental replacement of defective tracheal bifurcations in 20 @entity235 . The Y-shaped Marlex mesh tube was reinforced with a @entity7502 spiral and coated with collagen made from porcine skin. This coating process makes the prosthesis biocompatible and airtight. Replacement of the tracheobronchial bifurcation was performed through a right thorachotomy, and omentopexy was added in all 20 @entity235 . Six of the 20 @entity235 have survived. The causes of death of the other 14 @entity235 were obstruction of the main bronchus (one @entity235 ), omental @entity39 (three @entity235 ), and air leakage from the prostheses and suture points (10 @entity235 ). In all six surviving @entity235 , the artificial @entity825 are covered with regenerated tissue and there is no evidence of @entity850 or dehiscence. These results indicate that the prosthesis can be effective and safe in the long-term; however, air leakage from the prosthesis is a serious complication. Therefore, a better method is needed to make the prosthesis airtight to improve the postoperative result.

Replacement of the tracheobronchial bifurcation by a newly developed Y-shaped artificial XXXX .

@entity825 :: ('MESH:D055090', 'Disease') :: ['tracheas', 'trachea'] @entity39 :: ('MESH:D009336', 'Disease') :: ['necrosis'] @entity235 :: ('9615', 'Species') :: ['dog', 'dogs'] @entity7502 :: ('MESH:D011126', 'Chemical') :: ['polypropylene'] @entity850 :: ('MESH:D003251', 'Disease') :: ['stenosis']
@entity825 :: (MESH:D055090,Disease) :: ['trachea']
