Cryotherapy of subglottic hemangioma

Area of Science:

• Pediatric Otolaryngology
• Interventional Pulmonology
• Laser Surgery

Background:

• Subglottic hemangiomas in infants can cause life-threatening airway obstruction.
• Spontaneous regression is common, but aggressive lesions require intervention.

Observation:

• Two infants with complete upper airway obstruction due to subglottic hemangiomas underwent successful transbronchoscopic cryotherapy post-tracheostomy.
• Cryoprobes were applied at -80°C for 30-45 seconds, with duration adjusted for patient age.

Findings:

• Histopathology revealed tracheal reepithelialization, cartilage regeneration, and minimal fibrosis 3.5 months post-cryotherapy.
• One infant recovered fully, while the other succumbed to an unrelated illness despite successful cryosurgery.

Implications:

• Cryotherapy provides hemostasis, controlled injury, and rapid healing, preserving airway lumen without stricture.
• It is a viable alternative to radiotherapy, sclerosing agents, steroids, and surgical excision.
• Carbon dioxide laser is reserved for smaller lesions.