Ventilation and swallowing interactions of normal children and children with cerebral palsy

Area of Science:

• Pediatric Neurology
• Respiratory Physiology
• Swallowing Disorders

Background:

• Cerebral palsy (CP) often affects motor control, potentially impacting non-motor functions like breathing and swallowing.
• Understanding the ventilatory cycle during oral tasks is crucial for assessing functional deficits in children with CP.

Purpose of the Study:

• To investigate and compare the ventilatory patterns during drinking, chewing, and swallowing in children with spastic CP, athetoid CP, and neurotypical children.
• To identify specific respiratory and swallowing coordination differences in children with CP.

Main Methods:

• Utilized respiratory inductance plethysmography to analyze ventilatory cycles in 33 children (5-12 years old) divided into normal, spastic CP, and athetoid CP groups.
• Assessed breathing patterns during tasks involving liquid and solid bolus ingestion, including breath-holding and swallowing timing.

Main Results:

• Children with CP, particularly athetoid CP, showed reduced ability to perform a 'big breath' and shorter breath-hold durations compared to controls.
• Many children with CP required multiple swallows for small liquid volumes and did not time liquid swallows near peak inspiration as neurotypical children did.
• Children with CP exhibited a greater need for inspiration post-liquid tasks, especially with larger volumes.

Conclusions:

• Children with CP demonstrate significant disruptions in ventilatory control and coordination during swallowing.
• These findings highlight the complex interplay between motor impairments in CP and essential functions like breathing and eating, suggesting potential for feeding difficulties.