Objectives: Endoscopic supraglottoplasty is the mainstay surgical procedure in treatment of laryngomalacia. Various instruments have been used with coblation recently gaining widespread attention. Regarding the technique used, cutting the aryepiglottic folds is associated with rapid improvement but carries risk of restenosis while outer scar contracture method has delayed but established result. Therefore, this study was conducted to introduce a modified coblation supraglottoplasty technique gathering both benefits and evaluate its results and effectiveness.
Methods: Retrospective study included patients diagnosed with type II laryngomalacia was conducted. Supraglottoplasty was done by "one and half coblation supraglottoplasty" technique which involves cutting of one aryepiglottic fold while the other one is laterally coagulated. Patients' basic and clinical data were assessed. Outcome measures included assessment of inspiratory stridor, failure to thrive, choking, cyanosis, lowest oxygen saturation levels and weight gain.
Results: Seventeen patients were included in this study with a mean age of 3.71 ± 1.1 months. Significant statistical improvement was reached regarding stridor, failure to thrive and cyanosis. Also, minimal oxygen saturation and weight gain were significantly improved. None of the cases needed tracheostomy and no major postoperative complications occurred.
Conclusion: We conclude that "one and half coblation supraglottoplasty" is an effective and safe treatment for type II laryngomalacia with satisfactory outcomes.
Level of evidence: IV.
Keywords: Aryepiglottic folds; Coblation; Laryngomalacia; Supraglottoplasty.
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