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Coblation supraglottoplasty: a ten-year experience in a tertiary referral hospital

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The present study aims to review the outcomes of coblation supraglottoplasty performed for children with different types of laryngomalacia, and we discuss the factors affecting these outcomes.


We retrospectively reviewed the medical records of laryngomalacia patients admitted to the Otorhinolaryngology Department, Mansoura University, from 2010 to 2020. We examined the patient’s demography, symptoms, comorbidities, type of laryngomalacia, oxygen saturation, and final outcomes.


Our study included 235 patients; 122 patients responded to medical therapy, while 113 underwent surgical management. There is a significant relation between the types and therapy they underwent (p ≤ 0.001). Larger percentage within type I underwent medical therapy. There is a statistically significant difference between the studied groups regarding age at surgery. On pairwise comparison, patients with type II had the lowest age significantly at the surgery when compared with each other individual group (p ≤ 0.001). On multivariate regression analysis, the presence of comorbid congenital heart disease, neurological comorbidities significantly increased the risk of failure of surgical intervention by 17.32 and 5.803 folds, respectively.


Coblation supraglottoplasty is effective and safe to treat severe laryngomalacia. Different morphological types of laryngomalacia require slight surgical variations of coblation supraglottoplasty. The presence of comorbid congenital heart disease, neurological comorbidities significantly increased the risk of failure of surgical intervention.

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Availability of data and materials

The data sets used and/or analyzed during the current study are available from the corresponding author on reasonable request.


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The authors have no funding or financial relationships to disclose.

Author information




A.S; methodology, idea formulation—R.A: methodology, reference collection—A.A; review writing and editing the final draft—M.I: Data collection, and statistical analysis—M.D; data collection and final revision—N.A; data collection and revision—A.S; methodology, and revision.

Corresponding author

Correspondence to Mohamed E. El-Deeb.

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All procedures performed in this study involving human participants were in accordance with the ethical standards of the institutional research editorial boards and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards.

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Formal consent was signed by the patients to share and to publish their data in this research.

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El-Sobki, A., Ibrahim, R.A.E., Amer, A. et al. Coblation supraglottoplasty: a ten-year experience in a tertiary referral hospital. Eur Arch Otorhinolaryngol (2021).

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  • Laryngomalacia
  • Supraglottoplasty
  • Coblation
  • Comorbidities
  • Pediatric airway