PWSA Blog

Ask Nurse Lynn: Infant Growth

Question:

Female, 5 months old, Deletion subtype

My baby is 5 months old. The growing is not fast, 5 month looks like 2 months.
What do I do?

Nurse Lynn’s Response:

I’m sorry to hear about your concerns regarding your baby’s growth, here are some suggestions:

Consult with a Pediatric Endocrinologist:

  1. Schedule regular check-ups to monitor your baby’s growth. The pediatric endocrinologist will track growth metrics using PWS-specific growth charts for a more accurate assessment.

Growth Hormone Therapy:

  1. Early initiation of growth hormone therapy is critical and has shown to improve growth, body composition, and motor development in children with PWS.

  2. Request an evaluation for growth hormone therapy if it hasn’t been initiated yet. Your endocrinologist will perform tests including IGF-1/IGFBP-3 levels to ensure safety.

Nutrition:

  1. Ensure your baby is receiving adequate nutrition. Babies with PWS have poor muscle tone (hypotonia), which can make feeding difficult. There are specialized bottles and nipples that may help.

  2. Breastfeeding or formula feeding might require techniques to improve intake. Some babies might require fortified formulas/ breastmilk or even supplemental tube feeding in some cases.

  3. Collaborate with a dietitian familiar with PWS to develop a tailored feeding plan. This can address poor weight gain in infancy while preventing later complications such as obesity.

Specialist Involvement:

  1. Assemble a multidisciplinary team to provide comprehensive care including:

  2. Nutritionist: To optimize feeding strategies and ensure adequate growth without overfeeding.

  3. Physical Therapist: To address hypotonia and improve motor skills.

  4. Speech Pathologist: To help with feeding difficulties, oral motor skills, and later language development.

  5. Endocrinologist: For growth monitoring and hormone therapy.

  6. Geneticist (if not already involved): To provide ongoing education and support for managing PWS-related challenges.

Resources:

I have linked several articles/ resources for you and your providers that may be helpful.

Growth-Hormone-booklet-third-Edition_FINAL.pdf

Growth Standards of Infants With Prader-Willi Syndrome | Pediatrics | American Academy of Pediatrics

Growth hormone treatment in Prader-Willi syndrome patients: systematic review and meta-analysis – PMC

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