0:00 / 0:00
125 views

Coblation Assisted Supraglottoplasty

Laryngomalacia is the most common congenital laryngeal anomaly and the leading cause of inspiratory stridor in neonates and infants. The etiology is multifactorial, with the most widely accepted theory being neuromuscular immaturity of the laryngeal structures, particularly the supraglottis. This immaturity leads to dynamic collapse of supraglottic tissues—namely the epiglottis, aryepiglottic folds, and arytenoid cartilages—during inspiration due to inadequate neuromuscular tone and coordination. Anatomically, findings often include an omega-shaped epiglottis, short aryepiglottic folds, and redundant arytenoid mucosa, all contributing to airway obstruction during the inspiratory phase of respiration. Additionally, laryngomalacia is frequently associated with gastroesophageal reflux disease (GERD), which may exacerbate the condition by causing laryngeal inflammation and edema. In some cases, immaturity of the laryngeal cartilage also contributes to the increased compliance and collapsibility of the airway. While most cases are idiopathic and resolve spontaneously with growth and maturation, laryngomalacia may be more severe or persistent in infants with underlying neurologic impairment, hypotonia, or syndromic diagnoses. When severe, it can result in feeding difficulties, poor weight gain, or sleep-related breathing issues. Supraglottoplasty is a minimally invasive surgical procedure to relieve airway obstruction by trimming or repositioning floppy supraglottic tissues. In this video we have described the use of coblation want to release aryepiglottic folds and to reduced redundant arytenoid tissue to improve laryngomalacia collapse during inspiration.

Step 1: Positioning & Exposure • Child in supine position, neck extended ("sniffing position") • Suspend laryngoscope for a clear view of supraglottic structures • Visualize aryepiglottic folds, redundant arytenoid mucosa, and short epiglottis Step 2: Laryngoscopy Findings • Omega-shaped epiglottis • Collapse of aryepiglottic folds on inspiration • Redundant mucosa over arytenoids prolapsing into glottis Step 3: Aryepiglottic Fold Division • Use coblation device to divide tight folds bilaterally • Avoid over-resection to prevent supraglottic stenosis Step 4: Trimming Redundant Arytenoid Mucosa • Gentle excision of mucosa over arytenoids with coblation • Preserve underlying cartilage and interarytenoid area
Indications for Surgery • Severe stridor with retractions or feeding compromise, (May suggest Raman score more than 10) • Failure to thrive • Desaturation events or sleep-disordered breathing • Cyanotic episodes or apnea • Unresponsive to conservative management (e.g., PPI, feeding modification)
Severe comorbidity is a relative contraindication. Poor visibility of the larynx with laryngoscopy is another.
Positioning & Exposure • Child in supine position, neck extended ("sniffing position") • Suspend laryngoscope for a clear view of supraglottic structures • Visualize aryepiglottic folds, redundant arytenoid mucosa, and short epiglottis
Preoperative Workup • Flexible laryngoscopy (awake, supine vs prone) • Direct laryngoscopy & bronchoscopy (DLB) to rule out synchronous lesions . A Swallow study is useful and a sleep study important in severe cases.
Well exposed and suspended larynx to look for - Epiglottis - Arytenoids - Aryepiglottic folds - Vocal folds - Pharyngoepiglottic folds
Advantage - Simple and quick procedure - Surgical Precision - NO bleeding Disadvantage - Cost of the wand as compared to cold instruments
Complication -Edema -Aspiration -Supraglottic stenosis In severe cases of laryngomalacia, particularly those with significant airway obstruction, recurrent cyanotic episodes, or poor weight gain, admission to the Pediatric Intensive Care Unit (PICU) may be necessary. These patients often require close respiratory monitoring, supplemental oxygen, or ventilatory support, especially in the perioperative period if supraglottoplasty is indicated. The need for PICU care is heightened in infants with comorbid conditions such as neurologic impairment or cardiac disease, where the risk of decompensation is greater. Prevention/Treatment -Perioperative steroids, humidification -Preserve interarytenoid tissue -Avoid deep resections or bilateral trauma -Gentle handling, adrenaline
None
-None
1. Shivnani D, Raman EV, Kurien M, Ram G, Amle D. Surgical Candidacy for Management of Laryngomalacia: A Proposed Scoring System. Indian J Otolaryngol Head Neck Surg. 2023 Mar;75(1):151-158. doi: 10.1007/s12070-022-03307-7. Epub 2022 Dec 3. PMID: 37007897; PMCID: PMC10050528. 2. Thompson DM. Abnormal sensorimotor integrative function of the larynx in congenital laryngomalacia: a new theory of etiology. Laryngoscope 2007;117:1–33. 3. Froehlich P, Seid AB, Denoyelle F, et al. Discoordinate pharyngolaryngomalacia. Int J Pediatr Otorhinolaryngol 1997;39:9–18. 4. Zalzal GH, Anon JB, Cotton RT. Epiglottoplasty for the treatment of laryngomalacia. Ann Otol Rhinol Laryngol 1987;96:72–6 5. Holinger LD, Konior RJ. Surgical management of severe laryngomalacia. Laryngoscope 1989;99:136–42

Review Coblation Assisted Supraglottoplasty.

Your email address will not be published. Required fields are marked *

This field is hidden when viewing the form
This field is hidden when viewing the form

Related Videos

Are you watching this video for CME?

CME Feedback

Your 30-second teaser has ended. Log in or sign up to watch the full video.

Please sign up using the button below to get
full access to CSurgeries

You have gained maximum
CME credits this year.

Your CME credits will reset next year. You can still continue to watch our videos.​

Newsletter Signup

"*" indicates required fields

Name*