Pediatric tracheal stenosis includes a variety of entities characterized by a diminished airway lumen. Congenital entities can be classified into (i) intrinsic disease caused by short(e.g. tracheal webs) or long-segment forms of tracheal stenosis (e.g. tracheal atresia/agenesis and primary tracheomalacia) and (ii) extrinsic disease caused by cardiovascular anomalies such as vascular rings and/o...

We have identified a novel Drosophila homeodomain gene, unplugged (unp), whose function is required for formation of the tracheal branches that penetrate the CNS. In unp mutant embryos the segmentally repeated ganglionic branches stall and fail to penetrate the CNS and the segment-specific cerebral branch and associated cerebral anastomosis fail to form. Expression of unp in the founder cells f...

Introduction: For tracheal stenosis, tracheal resection and anastomosis is widely considered the treatment of choice. However, this surgical approach is not feasible when the glottis and subglottis are involved or in patients with a poor general condition and tracheal stents are a plausible means of providing a permanent or temporary airway opening. Objectives: Evaluate the features and the res...

The practice of artificial tracheal prosthesis has been a major challenge to the entire surgical field worldwide until now. The previously applied prosthesis is " inner stent " type, which is unable to heal biologically with native trachea. The newly developed design, the Zhao's artificial trachea, uses a memory alloy mesh combined with traditional operation procedures. Following a 2‑year exper...

BACKGROUND Primary malignant tracheal tumors account for only 0.2 % of all malignancies of the respiratory tract. Tracheal chondrosarcoma is a rare condition and only 17 cases have been described in the literature from 1965 to date. Herein we report the very unusual case of a patient with a tracheal chondrosarcoma, electively treated by curative surgery despite the virtually complete obstructio...

conclusions stents would be regarded as a temporary means of reaching the ideal condition for resection and reconstruction in most patients with tracheal stenoses. although an optimal stent has not been introduced yet, we used polyflex stents in most of our patients with tracheal stenosis due to its availability and ease of use. we suggest that this method is safe and less time consuming than i...

bypass . . u r g r , j v r araarurruvss s v r r w * r c vsauyrsugcus rrr*a,rurcu wlth~n the I0;vearperiod of January 1978 to December 1987. Cervical complications accounted for 60% and the commonest was a leak at the colo-oesophageal anastomosis. There was one death due to undetected oesophago-tracheal fistula. The longest follow up was 10 years. ve oesophageal strictures