Growth Charts for Prader-Willi Syndrome During Growth Hormone Treatment

Area of Science:

• Pediatrics
• Endocrinology
• Genetics

Background:

• Prader-Willi syndrome (PWS) is a complex genetic disorder affecting multiple body systems, often leading to growth abnormalities.
• Growth hormone deficiency is common in PWS, necessitating therapeutic interventions to optimize growth and development.
• Existing growth charts may not accurately reflect growth patterns in PWS individuals receiving growth hormone treatment.

Purpose of the Study:

• To develop syndrome-specific, standardized growth curves for individuals with Prader-Willi syndrome (PWS) aged 0-18 years receiving growth hormone (GH) therapy.
• To provide clinicians with accurate tools for monitoring growth in GH-treated PWS patients.
• To compare growth patterns in GH-treated PWS individuals against non-GH-treated PWS populations.

Main Methods:

• Development of syndrome-specific growth curves using the LMS method for 171 PWS subjects (0-18 years) treated with GH.
• Collection of anthropometric data including weight, height, head circumference, weight/length, and BMI.
• Comparison with normative data and growth charts for non-GH-treated PWS individuals.

Main Results:

• Standardized growth curves for PWS patients treated with growth hormone were established for 7 percentile ranges.
• Growth hormone treatment demonstrated a normalization of stature and significant improvement in weight compared to non-GH-treated PWS individuals.
• The developed charts allow for better tracking of growth trajectories in GH-treated PWS patients.

Conclusions:

• Syndrome-specific growth charts are essential for accurately assessing growth in children with PWS receiving growth hormone therapy.
• Growth hormone treatment significantly improves key growth parameters, including height and weight, in individuals with PWS.
• These standardized growth curves provide valuable clinical guidance for managing GH therapy in PWS.