Aim of the Work To compare the clinical outcomes between patients will undergo slide tracheoplasty and those will undergo tracheal resection anastomosis for 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.