Management of Infant with Poor Suck and Increased Feeding Time

Diagnostic Considerations

The American Academy of Pediatrics recommends that any infant with poor suck combined with significant hypotonia and difficulty with weight gain should prompt immediate molecular testing for Prader-Willi syndrome 1, 2, 4
Infants presenting with this triad (hypotonia + poor suck + poor weight gain) from birth to 2 years should undergo DNA testing for Prader-Willi syndrome 1, 2, 4
Additional features supporting the diagnosis of Prader-Willi syndrome include reduced spontaneous arousal for feeding and hypogonadism (undescended testes, small phallus, or small clitoris) 2, 4
Consider cardio-facio-cutaneous syndrome if feeding difficulties occur with other dysmorphic features or developmental concerns 5

The American Academy of Pediatrics suggests avoiding prolonged oral feeding time, with sessions not exceeding 20 minutes 3
Monitor the work of feeding and adjust caloric density to maintain appropriate growth without exhausting the infant 3
Use special nipples and feeders designed to reduce the work of sucking, such as Pigeon feeders or Haberman nipples, to compensate for weak suck mechanics and reduce feeding duration 3
Increase caloric density of formula to minimize volume while maintaining adequate intake, reducing the total work required per feeding session 3
If oral feeding remains inefficient despite interventions, transition to nasogastric tube feeding to ensure adequate caloric intake 3, 7

Refer immediately to feeding therapy for evaluation of oral-motor functioning and specific intervention strategies 5, 6
Gastroenterology referral in early infancy for feeding difficulties and poor growth 5
Speech and language evaluation, including assessment of oral-motor functioning 5
Occupational therapy with specific attention to hypotonia and sensory integration 5
Physical therapy for hypotonia and gross motor delay 5

For Prader-Willi syndrome, maintain adequate caloric intake during the initial hypotonic phase with poor feeding 3
Transition from tube feeding should occur gradually as oral-motor skills improve in infants with Prader-Willi syndrome 3
Development of appropriate eating habits is critical in Prader-Willi syndrome, with normal fat and calorie intake maintained for brain development 3
For cardio-facio-cutaneous syndrome, evaluate for gastroesophageal reflux and swallowing dysfunction through swallowing studies, pH studies, upper GI series, and endoscopy as recommended by gastroenterologist 5

Prolonged attempts at oral feeding beyond 20 minutes per session exhaust the infant and compromise caloric intake 3
Do not restrict calories prematurely in conditions like Prader-Willi syndrome, as normal fat and calorie intake is essential for brain development during infancy 3
Minimize exclusive tube feeding when possible, as many feeding difficulties are transient, and remove gastrostomy tubes promptly when no longer needed 7