Feeding difficulties in patients with Phenylketonuria.
Alexia Diovana Fernandes da Rocha, Chenia Caldeira Martinez, Lilia Farret Refosco and 3 others
PMID 37792814WHAT IT FOUND
Caregivers reported similar rates of feeding difficulties in children with and without PKU.
However, children with PKU showed significantly less self-feeding autonomy, were breastfed less often, and relied on bottles more frequently than healthy controls.
Key findings
01The frequency of caregiver-reported feeding difficulties was similar between children with PKU and healthy controls.
02Children with PKU demonstrated significantly less feeding autonomy and lower rates of breastfeeding compared to controls.
03Higher scores on the feeding difficulty scale were significantly associated with the presence of gastrointestinal symptoms.
STILL TO COME
How it was doneWhat they foundWhat it means for OTs
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What it does not show
The study used a convenience sample recruited via social media and clinic calls, which may introduce selection bias. Feeding difficulties were assessed solely via caregiver report on a questionnaire, without direct clinical observation of the child eating. The study did not measure current plasma phenylalanine levels or metabolic control, so it cannot determine if feeding difficulties are linked to disease management severity. The sample size was small, particularly for subgroup analyses. Recruitment occurred during the pandemic (May-August 2020), which may have influenced feeding practices and access to care.
Declared interests
The study was funded by the Brazilian research incentive fund (FIPE) of Hospital de Clínicas de Porto Alegre. The authors declared no other conflicts of interest.
The easy way to misread this
Do not conclude that PKU itself causes feeding difficulties. The study found similar overall rates of reported difficulties between PKU and control groups. The differences were in specific behaviors like autonomy and breastfeeding rates, which may reflect dietary management practices rather than neurological deficits.