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Airway management in children with mucopolysaccharidoses
Andrea H Yeung1, Morton J Cowan, Biljana Horn
1Department of Otolaryngology-Head and Neck Surgery, University of California, San Francisco, 400 Parnassus Ave, A730, San Francisco, CA 94143-0342, USA. ayeung@ohns.ucsf.edu
Insights
Children with mucopolysaccharidoses (MPSs) often experience airway obstruction. Bone marrow transplantation can significantly improve airway disease symptoms in these patients, highlighting its potential to alter the natural history of MPS-related complications.
Area of Science:
- Pediatric Otolaryngology
- Genetics and Rare Diseases
- Respiratory Medicine
Background:
- Mucopolysaccharidoses (MPSs) are rare, inherited metabolic disorders.
- Excessive glycosaminoglycan accumulation in MPSs leads to progressive multi-systemic disease.
- Airway compromise is a significant and potentially life-threatening complication in pediatric MPS patients.
Purpose of the Study:
- To investigate the natural history of airway disease in children diagnosed with MPS.
- To evaluate the impact of interventions, specifically bone marrow transplantation (BMT), on airway disease progression.
Main Methods:
- Retrospective medical chart review of 27 pediatric patients with MPS.
- Analysis of airway disease progression and outcomes over a 20-year period (1984-2004).
- Assessment of symptoms before and after BMT in eligible patients.
Main Results:
- Seventy percent (19/27) of patients presented with clinically significant upper airway obstruction.
- Three patients (11%) required tracheotomy due to severe obstruction.
- Bone marrow transplantation in 14 patients led to significant improvement in obstructive symptoms in 13 (93%) post-engraftment.
Conclusions:
- Otolaryngologists must be vigilant for airway complications, including sleep apnea and obstruction, in children with MPS.
- Successful bone marrow engraftment demonstrates potential to favorably alter the natural course of airway disease in MPS.
- Early intervention with BMT may offer substantial symptomatic relief and improve long-term outcomes for airway disease in pediatric MPS.
Objective:
To review of the natural history of airway disease in children with muccopolysaccharidoses (MPSs), which represent a group of hereditary progressive disorders caused by excessive accumulation of glycosaminoglycans in various tissues.
Design:
Retrospective medical chart review.
Setting:
Tertiary referral academic medical center.
Patients:
Twenty-seven children with MPSs.
Main Outcome Measures:
A review of the medical charts of 27 children with MPSs between February 1, 1984, and February 1, 2004, was performed to examine the natural history of airway disease.
Results:
Clinically upper airway obstruction was noted in 19 patients (70%) and necessitated a tracheotomy in 3 patients (11%). Fourteen of the 27 patients underwent bone marrow transplantation, and successful engraftment resulted in a significant decrease in obstructive symptoms in 13 of the 14 patients.
Conclusions:
Patients affected by MPSs require the vigilant attention of the otolaryngologist, as sleep apnea and upper airway obstruction are common complications. Successful bone marrow engraftment may alter the natural history of airway disease and result in substantial improvement in symptomatic airway disease in children with MPSs.
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