Slide Tracheoplasty Versus Tracheal Resection Anastomosis in Acquired Tracheal Stenosis

Inclusion Criteria: * All patients with grade III, IV acquired tracheal stenosis (e.g., due to trauma, prolonged intubation) regardless their age or sex. * Patient with symptomatic high grade II acquired laryngotracheal stenosis after failure of endoscopic interventions. * Clinical indications for surgical intervention (Symptoms of airway obstruction). * Feasible for surgical intervention. Exclusion Criteria: * congenital tracheal stenosis * Malignant stenosis. * Severe comorbidities that contraindicate the surgery. * Patients refusing to sign the consent.