Paediatric feeding disorder: nutritional and gastrointestinal management — formative SAQs

SAQ 1 — The child with food refusal, faltering growth and reflux (20 marks, ~15 minutes)

A three-year-old with cerebral palsy has refused most foods for six months, accepting only smooth yoghurt and milk. Her weight has fallen from the tenth to below the third centile. Her reflux has been poorly controlled and she is constipated. The family has been told her refusal is behavioural. [4]

Questions

1. Give the unifying diagnosis using the consensus definition and explain why labelling the refusal purely behavioural is incomplete. (5 marks) [1]
2. Outline the four-domain assessment that should precede a management plan. (5 marks) [1]
3. Explain why treating the reflux and constipation is the first management lever, and why treating the gut alone may not resolve the refusal. (5 marks) [4]
4. Describe the stepped nutritional and feeding management, including the role of enteral feeding and the tube-weaning principle. (5 marks) [12]

Model answer (must-hit)

1. The unifying diagnosis is a paediatric feeding disorder, defined by the 2019 Goday consensus as impaired oral intake that is not age-appropriate and is associated with medical, nutritional, feeding skill and/or psychosocial dysfunction. Labelling the refusal purely behavioural is incomplete because this child has clear medical drivers (reflux, constipation), nutritional dysfunction (faltering growth), and likely feeding-skill and psychosocial components; the consensus framework requires assessment across all four domains. [1]
2. The four-domain assessment characterises the medical domain (reflux, constipation, eosinophilic oesophagitis, allergy, oromotor and swallow status), the nutritional domain (intake, growth trajectory, micronutrient screen such as ferritin), the feeding-skill domain (oromotor examination and instrumental swallow study if aspiration is suspected), and the psychosocial domain (mealtime interaction, conditioned aversion, carer burden). The case report form from the consensus framework structures this. [1]
3. Treating reflux and constipation is the first lever because uncontrolled reflux conditions the child to associate feeding with pain and constipation suppresses appetite through early satiety, so feeding will not improve while the gut is uncomfortable. However, treating the gut alone may not resolve the refusal because the child has developed a conditioned taste aversion and sensory narrowing that persist after the medical driver is removed, so the behavioural layer needs its own structured intervention. [4]
4. The stepped plan treats the medical driver first, then builds feeding skill and applies structured behavioural intervention, then supports nutrition with dietary fortification and oral nutritional supplements. Enteral feeding by nasogastric tube or gastrostomy, guided by the ESPGHAN position paper, is used when intake is unsafe or insufficient, with an active tube-weaning plan in place from the outset so that feeding tube dependency is prevented rather than created. [12]

SAQ 2 — The former premature infant who is tube-dependent (20 marks, ~15 minutes)

An eighteen-month-old infant born at twenty-seven weeks has been nasogastrically fed since the neonatal unit and refuses all oral intake. She is growing adequately on the tube. Her parents want to know why she will not eat and whether she will need a gastrostomy. [10]

Questions

1. Explain the mechanism of feeding tube dependency and why it developed in this infant. (5 marks) [10]
2. Distinguish this presentation from avoidant/restrictive food intake disorder and explain why the distinction matters. (5 marks) [9]
3. Outline the structured multidisciplinary tube-weaning program and the evidence supporting intensive intervention. (5 marks) [5]
4. Advise the family on the gastrostomy decision, weighing the risks of long-term tube dependence against the option of continued nasogastric feeding. (5 marks) [12]

Model answer (must-hit)

1. Feeding tube dependency develops because tube feeding suppresses the hunger cue that should drive oral intake and removes the oral-motor practice that builds feeding skill; the longer the tube remains the more entrenched the dependency. In this former premature infant, the immature suck-swallow-breathe pattern meant oral feeding was never established in the neonatal unit, and the tube that was placed as a short-term bridge became the sole route of feeding, so the infant never learned to associate hunger with eating by mouth. [10]
2. This is a paediatric feeding disorder in the feeding-skill and psychosocial domains driven by prematurity and tube feeding, an organ-based condition owned by paediatrics. Avoidant/restrictive food intake disorder is a DSM-5 psychiatric eating disorder driven by lack of interest, sensory-based avoidance or fear of aversive consequences in the absence of a primary medical cause. The distinction matters because the diagnostic home, the team and the first treatment lever differ: this child needs a tube-weaning program, not an eating-disorder service, although the two can coexist and should be screened for. [9]
3. A structured multidisciplinary tube-weaning program combines hunger induction (calorie reduction through the tube to re-establish the hunger cue), behavioural intervention to build oral acceptance, and oromotor therapy to develop the feeding skill, delivered by a coordinated team of paediatrician, dietitian, speech-language therapist and psychologist. The systematic review and meta-analysis of intensive multidisciplinary intervention established that these programs produce substantial gains in oral intake and represent the effective standard of care for moderate to severe paediatric feeding disorders. [5]
4. The gastrostomy decision weighs the child's growth, the duration of expected tube dependence, and the family's capacity to sustain a weaning program. A gastrostomy, placed per the ESPGHAN position paper, is appropriate if long-term non-oral feeding is anticipated, but it carries its own risk of entrenching dependence and should always come with an active weaning plan. If a structured intensive weaning program is feasible and the child has no unsafe swallow, attempting weaning before a gastrostomy is reasonable, because feeding tube dependency is far easier to prevent than to treat once a long-term tube is in place. [12]