Hyperbaric oxygen therapy for laryngeal radionecrosis.

Area of Science:

• Otolaryngology
• Oncology
• Hyperbaric Medicine

Background:

• Laryngeal radionecrosis is a severe complication of radiation therapy, causing significant morbidity including pain, dysphagia, and airway compromise.
• Advanced stages (grades III-IV) are particularly challenging, with a high risk of poor wound healing and potential need for laryngectomy.
• Limited effective treatments exist for advanced laryngeal radionecrosis.

Purpose of the Study:

• To evaluate the efficacy of adjunctive hyperbaric oxygen therapy (HBOT) in managing advanced laryngeal radionecrosis.
• To compare outcomes in patients treated with HBOT to historical data without HBOT.
• To assess the impact of HBOT on symptoms, wound healing, and the need for laryngectomy.

Main Methods:

• A retrospective case series of eight patients with advanced laryngeal radionecrosis (grades III-IV) treated with adjunctive HBOT.
• Clinical data including pain, dysphagia, respiratory status, and wound healing were assessed.
• Outcomes were compared to previous studies on laryngeal radionecrosis management without HBOT.

Main Results:

• Seven of eight patients experienced dramatic amelioration of radionecrosis signs and symptoms.
• One patient, despite subjective improvement, ultimately required laryngectomy.
• No deaths were reported in this series.
• Outcomes suggest improved efficacy compared to historical controls not receiving HBOT.

Conclusions:

• Adjunctive hyperbaric oxygen therapy is a potentially effective treatment for advanced laryngeal radionecrosis.
• HBOT can significantly improve symptoms and wound healing, potentially reducing the need for laryngectomy.
• Further prospective studies are warranted to confirm these findings and establish optimal HBOT protocols.