Laryngomalacia
Congenital Supraglottic Airway Collapse
Primary risk age: Newborns to 18 Months (Typically presents in first few weeks of life)
- Urgency
- Moderate
- Typical age
- Newborns to 18 Months (Typically presents in first few weeks of life)
- Body system
- Respiratory System
Typical course: Spontaneous resolution by 12 to 18 months.
Reviewed against AAP · CDC · WHO · NHS guidance Last reviewed 2026-06-13
1. Summary & Pathophysiology
Congenital Supraglottic Airway Collapse
Pathophysiology (Development Path)
Floppiness of the supraglottic tissues (omega-shaped epiglottis, redundant arytenoid mucosa). During inspiration, negative pressure causes these soft tissues to collapse inward, narrowing the airway inlet and producing high-pitched, noisy breathing (stridor).
Primary Causes & Etiology
Congenital developmental delay in the rigidity of laryngeal cartilages, combined with altered neuromuscular tone of the upper airway.
2. Symptom Continuum
- Early Onset Signs
High-pitched, squeaking, or "wet" inspiratory stridor starting in the first 2-4 weeks, worse when supine, crying, or feeding.
- Progressive Phase
Stridor worsening up to 6 months of age; associated feeding difficulties and gastroesophageal reflux (spitting up).
- Severe Indicators
Sustained chest wall retractions, episodes of cyanosis, difficulty breathing causing poor weight gain (failure to thrive), and sleep apnea.
3. Clinical Verification
Direct laryngoscopy on an awake infant via flexible fiberoptic scope, confirming floppy arytenoids and inward collapse during inhalation.
4. Care & Elements Plan
Primary Care Treatment Plan
Conservative observation in 90% of cases as cartilage stiffens. Treat gastroesophageal reflux to reduce swelling. Supraglottoplasty surgery for severe obstruction or failure to thrive.
Home Support Elements
Feed infant in an upright position; keep upright for 30 minutes after feeds; monitor weight gain closely. Never ignore cyanosis.
Generic Active Ingredients (No Brands)
- Famotidine or Omeprazole (generic acid-suppressing active ingredients to control reflux and reduce laryngeal inflammation).
Lists active elements only. Never administer self-designed therapies.
5. Doctor Critical Lines
Critical Thresholds: When to See a Doctor
Seek immediate medical attention if the baby stops breathing for more than 10 seconds, develops blue lips, has severe chest pulling (retractions), or is unable to gain weight.
6. Vaccine & Prevention
Routine Prophylaxis (Prevention)
No known prevention; it is a congenital developmental delay.
Immunization Context
Routine pediatric immunizations are fully recommended.
7. Timelines & Outlook
Active Timeline
Spontaneous resolution by 12 to 18 months.
Expected Prognosis
Excellent; resolves spontaneously without surgery in over 90% of infants by 12 to 18 weeks/months as larynx matures.
Potential Untreated Complications
Severe hypoxemia, cor pulmonale, sleep apnea, pulmonary hypertension (in extreme untreated airway blockage).
More in Upper Respiratory Track & Airway Dynamic Inflammations
Severe Acute Laryngotracheobronchitis (Croup)
Upper Airway Viral Subglottic Stenosis
6 Months to 3 Years (Peak occurrence)
Emergency Acute Epiglottitis
Life-Threatening Upper Airway Supraglottic Cellulitis
2 to 6 Years (Peak occurrence, though rare now due to immunizations)
Mild Common Cold (Viral Nasopharyngitis)
Self-limiting viral upper respiratory tract infection.
All ages; infants and preschoolers average 6–10 colds per year.