Coblation Assisted Dilatation Versus Modified Maddern Procedure in Subglottic and Cervical Tracheal Stenosis

Coblation Assisted Dilatation Versus Modified Maddern Procedure in Subglottic and Cervical Tracheal Stenosis: a Randomized Clinical Trial

This study compares the effectiveness of Coblation-assisted endoscopic airway dilatation with the modified Maddern procedure-which involves endoscopic excision of scar tissue followed by buccal mucosal grafting-in patients with subglottic and/or upper tracheal stenosis.

Inclusion Criteria:

• All consecutive patients with (grade II, III) subglottic and/or upper tracheal stenosis according to Myer-Cotton grading system
• all age groups (children and adults)

Exclusion Criteria:

• Patients with cervical spine diseases where an extended position during the procedure could be problematic.
• Previous neck or oral cavity irradiation.
• chronic uncontrolled debilitating diseases that might interfere with the healing process e.g. (diabetes mellitus, renal failure, decompensated liver diseases).