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Ann Thorac Surg 1997;64:349-354
© 1997 The Society of Thoracic Surgeons

Original Articles: General Thoracic

Experimental Reconstruction of the Mediastinal Trachea With a Wing-Shaped Reversed Esophageal Flap

Masanobu Kiriyama, MD, Akira Masaoka, MD, Yosuke Yamakawa, MD, Hiroshi Niwa, MD, Yoshitaka Fujii, MD

Department of Surgery II, Nagoya City University Medical School, Nagoya, Japan

Accepted for publication February 11, 1997.

Background. In cases of extensive tracheal resection in which direct end-to-end anastomosis is impossible there is a need for reconstruction. Nevertheless, with the present lack of reliable artificial trachea, no reconstruction method is available to assure safe replacement of the mediastinal trachea.

Methods. After tubular resection of the mediastinal trachea in mongrel dogs, the trachea was reconstructed using a wing-shaped reversed esophageal flap. A silicone tube was used as an internal stent.

Results. In group I (16 animals), three tracheal rings were resected; in group II (4 animals), six tracheal rings; in group III (6 animals), eight tracheal rings; and in group IV (5 animals), eight tracheal rings and the lining of the greater omentum. Safe reconstruction was accomplished in all cases in groups I and II, 2 of 6 cases in group III, and 2 of 5 cases in group IV. The omentopexy failed to prevent incomplete closure, yet served to minimize inflammation in the mediastinum.

Conclusions. A reversed esophageal autograft can be considered as a tracheal replacement.






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