Which are the symptoms of Laryngomalacia?

Laryngomalacia is the most common cause of noisy breathing in infants, characterized primarily by inspiratory stridor caused by the collapse of supraglottic structures during inhalation. While most cases resolve spontaneously by age 18 to 24 months, symptoms can range from mild, intermittent sounds to severe respiratory distress requiring clinical intervention.

What are the primary symptoms of Laryngomalacia?

The hallmark symptom of Laryngomalacia is inspiratory stridor—a high-pitched, squeaky, or rattling sound heard when an infant breathes in. This sound often worsens when the infant is agitated, crying, feeding, or lying on their back. Because Laryngomalacia involves the inward collapse of the epiglottis or arytenoid cartilages, the airway narrows during inspiration, creating this characteristic noise.

How does symptom severity vary in patients?

The clinical presentation of Laryngomalacia exists on a spectrum. While many infants remain "happy wheezers" who are otherwise healthy, others experience more significant challenges. Common symptoms affecting daily life include:

• Feeding difficulties: Infants may tire easily, take long pauses, or experience reflux (GERD), which is highly comorbid with Laryngomalacia.


• Poor weight gain: Increased work of breathing consumes significant calories, potentially leading to "failure to thrive."


• Retractions: Visible pulling in of the skin at the neck, chest, or between the ribs during breathing.


• Cyanosis: Rare, but serious, instances of bluish skin discoloration due to oxygen deprivation.

When should families seek immediate medical attention?

While Laryngomalacia is often benign, parents must watch for "red flag" symptoms. Seek emergency care if your child exhibits:

1. Severe chest retractions (deep sucking in of the chest wall).


2. Episodes of apnea (pauses in breathing).


3. Difficulty swallowing or persistent choking.


4. Failure to gain weight or significant feeding aversion.


5. Color changes around the lips or face.

How does Laryngomalacia progress over time?

Symptoms of Laryngomalacia typically emerge within the first few weeks of life, often peaking in intensity between 4 to 8 months of age. In the vast majority of cases, the supportive cartilage of the larynx matures and stiffens, and the condition resolves without surgery by the second birthday. At DiseaseMaps.org, we have seen members navigate this journey, emphasizing the importance of monitoring growth and breathing patterns closely.

Next steps

• Consult a pediatric otolaryngologist (ENT) for a definitive diagnosis, typically via flexible laryngoscopy.


• Monitor feeding frequency and weight gain to ensure your child is thriving.


• Join the DiseaseMaps.org community to connect with other families managing Laryngomalacia.


• Keep a log of when the stridor is loudest to share with your specialist.

Medical disclaimer: This content is for informational purposes only and does not constitute professional medical advice, diagnosis, or treatment; always seek the advice of your physician with any questions regarding a medical condition.

References

• NIH Genetic and Rare Diseases Information Center (GARD): Laryngomalacia overview.


• Orphanet: Rare disease database entry for congenital laryngeal malformations.


• American Academy of Pediatrics (AAP): Clinical guidelines on pediatric airway management.


• PubMed Central: Longitudinal studies on the natural history of infantile laryngeal disorders.