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.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
30
endoscopic Coblation-assisted dilatation is done for subglottic and / or upper tracheal stenosis. Radial incisions are done using the coblation technique, followed by balloon dilatation.
endoscopic excision of the scar tissue is done in patients with subglottic and / or upper tracheal stenosis. The resultant raw surface is covered with a buccal mucosal graft harvested from the patient cheek mucosa. The donor site is closed by primary suturing.
Faculty of Medicine, Mansoura University
Al Mansurah, Dakahlia Governorate, Egypt
Airway diameter
assessment of the diameter of the airway after the procedure by endoscopic examination
Time frame: 3, 6, and 12 weeks
subjective evaluation of breathing
the breathing is evaluated subjectively using the dyspnea handicap index. The Dyspnea Handicap Index (DHI) is a validated self-reported questionnaire consisting of 10 items, each scored as 0 (never), 2 (sometimes), or 4 (always), yielding a total score from 0 to 40, with higher scores indicating greater severity of dyspnea-related functional and emotional handicap.
Time frame: 3, 6, and 12 months
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