Feasibility of Tracheobronchial Reconstruction Using Allogenic Aortic Patch in Children

Inclusion Criteria

• •Meeting any of the following conditions, and being unsuitable for standard end-to-end tracheal anastomosis or lacking sufficient native tracheal tissue for defect reconstruction:
• •1. Congenital tracheal malformations: including congenital tracheomalacia, congenital tracheobronchial anomalies, complete tracheal rings, etc., with severe clinical respiratory symptoms and recommended for treatment after evaluation.
• •2. Acquired tracheal stenosis: including tracheal narrowing caused by disease, endotracheal intubation, or postoperative scar formation, with severe clinical respiratory symptoms and recommended for treatment after evaluation.
• •3. Tracheal injury or tissue loss due to trauma or burns requiring surgical repair.
• •4. Tracheal tumors: reconstruction of tracheal tissue after resection of benign or malignant tumors.
• •5. The term "severe clinical respiratory symptoms" includes:
• •1. Dependence on mechanical ventilation for more than 1 month due to airway narrowing or defect, with inability to wean.
• •2. Airway stenosis exceeding 50% (confirmed by bronchoscopy or CT imaging), accompanied by persistent stridor, inspiratory dyspnea, or suprasternal/substernal retractions, causing impairment of daily activities or feeding difficulties.
• •3. Unilateral or bilateral lung atelectasis persisting for more than 1 month due to tracheal or bronchial stenosis, with no sign of recovery.
• •4. Recurrent post-obstructive pneumonia (≥3 episodes) in one or both lungs caused by tracheal or bronchial stenosis, requiring hospitalization for treatment.