Related Experiment Video
Updated: May 6, 2026
Heterotopic and Orthotopic Tracheal Transplantation in Mice used as Models to Study the Development of Obliterative Airway Disease
Published on: January 20, 2010
Laryngotracheal reconstruction outcomes in hypotonic children
Jordan M Virbalas1, John P Bent2, Hillel W Cohen3
1Department of Otorhinolaryngology-Head and Neck Surgery, Albert Einstein College of Medicine, Bronx, New York.
Insights
Hypotonic children with subglottic stenosis had significantly lower decannulation rates after laryngotracheal reconstruction (LTR) compared to neurologically intact peers. This highlights potential challenges in managing pediatric airway obstruction in these vulnerable patients.
Area of Science:
- Pediatric Otolaryngology
- Pediatric Airway Surgery
- Neurology
Background:
- Poor muscle tone (hypotonia) can compromise the pediatric airway through mechanisms like obstructive sleep apnea and laryngomalacia.
- Neurologic deficits are suspected to impact the success of laryngotracheal reconstruction (LTR), but evidence is limited.
- No prior studies have specifically evaluated the effect of neurologic diagnoses or hypotonia on LTR outcomes in children.
Purpose of the Study:
- To determine if hypotonic children with subglottic stenosis have reduced rates of successful decannulation following LTR.
- To compare LTR outcomes between children with and without neurologic deficits, specifically focusing on hypotonia.
Main Methods:
- Retrospective chart review of 27 children (0-6 years) who underwent LTR for subglottic stenosis.
- Patients were categorized into three groups: neurologically intact (n=16), neurologically impaired without hypotonia (n=7), and hypotonic (n=4).
- Key outcomes assessed included the number of post-LTR procedures and successful decannulation.
Main Results:
- All neurologically intact children (100%) were successfully decannulated.
- Children with neurologic deficits but without hypotonia had a decannulation rate of 71% (5/7).
- No hypotonic children (0/4) were decannulated, a statistically significant poorer outcome compared to neurologically intact patients (P < .001).
Conclusions:
- Hypotonic children demonstrate significantly lower rates of successful decannulation after LTR compared to non-hypotonic peers.
- Dynamic upper airway obstruction may be underappreciated in hypotonic children undergoing LTR.
- Further research is warranted to optimize the evaluation and treatment strategies for hypotonic children with subglottic stenosis.
Importance:
Children with poor muscle tone may demonstrate upper airway obstruction due to several mechanisms including obstructive sleep apnea, laryngopharyngeal reflux, and laryngomalacia. Though hypotonia has been shown to compromise the pediatric airway, and some authors suggest that neurologic deficits can compromise the success of laryngotracheal reconstruction (LTR), to our knowledge no studies have evaluated the effect of neurologic diagnoses or hypotonia on outcomes in LTR.
Objective:
To determine whether hypotonic children with subglottic stenosis have lower rates of successful decannulation after LTR compared with children without neurologic deficit.
Design, Setting, And Participants:
A retrospective medical chart review was conducted for 27 children aged 0 to 6 years, who underwent LTR for subglottic stenosis between December 2007 and December 2012 at a tertiary care children's hospital. Children were classified based on documented neurologic findings. Group 1 comprised those children without neurologic impairment (n = 16). Group 2 included those children with a documented neurocognitive or neuromuscular diagnosis but without evidence of hypotonia (n = 7). Group 3 comprised hypotonic children (n = 4). INTERVENTIONS Laryngotracheal reconstruction.
Main Outcomes And Measures:
The number of procedures performed after LTR to optimize the airway and whether the child was successfully decannulated.
Results:
All 16 of the neurologically intact patients (100%) were decannulated. Among children with a neurologic deficit, 5 of 7 (71%) were ultimately decannulated. No hypotonic children 0 of 4 were decannulated. The difference in rates of decannulation between unaffected and normotonic children with a neurologic deficit was not statistically significant (P = .08). However, the difference in outcomes between hypotonic children and neurologically intact patients was statistically significant (P < .001).
Conclusions And Relevance:
Findings from this study suggest that hypotonic children may experience poorer rates of post-LTR decannulation compared with children without neurologic deficit. Dynamic upper airway obstruction may be unappreciated in hypotonic children. Future research may be directed at the appropriate evaluation and treatment of children with poor muscle tone and subglottic stenosis.
Related Concept Videos
01:22Trachea
Anatomical Features:
Location: About half of the trachea is situated in the neck, anterior to the esophagus, and extends from the larynx (at the level of...
01:21Tracheostomy Decannulation
Description of the Procedure
Decannulation refers to the permanent removal of the tracheostomy tube, signaling the resolution of the condition that initially necessitated the tracheostomy. The process requires a well-coordinated interplay between...
01:30Cardiopulmonary Resuscitation V: Advanced Airway Management Techniques
01:24Endotracheal Tube Extubation
Procedure
Extubation removes the endotracheal tube (ETT) from the patient on mechanical ventilation. It requires a well-coordinated, multidisciplinary approach involving physicians, nurses, respiratory therapists, and other healthcare professionals....
01:16Oxygen Delivering System II: Venturi Mask and Transtracheal Oxygen
Venturi Mask
The Venturi mask, named after the Venturi effect, is designed to deliver precise oxygen concentrations. It consists of a large tube with an oxygen inlet that narrows down, causing a pressure drop that pulls air in through adjustable side ports. The mask is a lightweight,...
01:28Tracheostomy: Procedure and Tubes
Tracheostomy tubes can be made of semiflexible plastic (polyurethane or silicone), rigid plastic, or metal, and they come in...