Massive tongue swelling following the use of synthetic saliva

Area of Science:

• Pediatric Medicine
• Allergy and Immunology
• Emergency Medicine

Background:

• Cerebral palsy (CP) and severe learning difficulties can present unique challenges in patient care.
• Synthetic saliva products are often used to manage oral dryness in patients with specific medical conditions.
• Adverse reactions to medical products, even seemingly benign ones, require thorough investigation.

Observation:

• A 5-year-old boy with cerebral palsy experienced sudden, massive tongue swelling after using synthetic saliva.
• The swelling resulted in acute airway obstruction and severe stridor, necessitating emergency intervention.
• The patient required tracheal intubation and transfer to a pediatric intensive care unit.

Findings:

• The adverse event was directly linked to the use of synthetic saliva.
• Treatment with intravenous steroids, antihistamines, and epinephrine was initiated.
• Discontinuation of the synthetic saliva led to gradual resolution of the swelling.

Implications:

• This case highlights a potential severe allergic reaction to synthetic saliva products.
• Healthcare providers should consider synthetic saliva as a potential allergen in patients with unexplained swelling.
• Further research may be warranted to identify causative agents in synthetic saliva and assess risks in vulnerable populations.