Carbon dioxide laser versus cold-steel supraglottoplasty: A comparison of post-operative outcomes
2020
Abstract Objective Supraglottoplasty is the mainstay of surgical treatment for laryngomalacia, and is commonly performed via two methods: cold steel or carbon dioxide (CO2) laser. The degree of post-operative monitoring following supraglottoplasty varies, both within and between institutions. The aim of this study was to compare the post-operative monitoring and interventions required by patients undergoing cold-steel versus CO2 laser supraglottoplasty. Design Retrospective cohort of pediatric patients (age 24 hours). Results 155 cases were eligible for inclusion. Fifty-eight (37.4%) patients had a comorbid condition. Common indications for surgery included feeding difficulty (56.1%), severe respiratory distress (33.5%), and obstructive sleep apnea (25.2%). CO2 laser was employed in 49 cases and cold-steel in 106 cases. Prolonged ICU-stay (>24 hrs) was observed in 14 CO2 laser cases (28.6%) and 11 cold-steel cases (10.4%) (adjusted OR 3.42; 95% CI 1.43, 8.33). CO2 laser cases were more likely to require post-operative intubation, non-invasive positive pressure ventilation, and nebulized racemic epinephrine. Concomitant neurological condition was associated with an increased risk of prolonged ICU-stay, while extent of surgery and age were not. Conclusions CO2 laser supraglottoplasty is associated with an increased risk of prolonged ICU-stay and need for ICU-level airway intervention, compared to the cold-steel technique. While this association should not be misconstrued as a causal relationship, the current study demonstrates that specific surgical factors may influence the patient monitoring requirements following supraglottoplasty, particularly the choice of instrument and the extent of surgery.
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