The preparation for a colonoscopy often involves intensive bowel cleansing and prolonged fasting. While clinicians commonly monitor adults, new research highlights a significant risk of pediatric bowel preparation hypoglycemia. Specifically, a retrospective study at the Children’s Hospital of Philadelphia analyzed over 5,000 cases to evaluate this metabolic concern. Consequently, the findings suggest that clinicians must remain vigilant regarding blood glucose levels in younger patients before endoscopic procedures.

Identifying Risks in Pediatric Bowel Preparation Hypoglycemia

The study evaluated children and young adults aged 5 months to 27 years. Moreover, researchers discovered that approximately 8% of these patients experienced hypoglycemia before their colonoscopy. In addition, 3% faced moderate hypoglycemia, while 1% suffered from severe drops in blood sugar. Furthermore, the analysis identified specific clinical variables that correlate with a higher risk. Specifically, younger patients and those in lower weight percentiles were significantly more likely to develop hypoglycemia across all severity thresholds.

Therefore, clinicians should prioritize monitoring for these vulnerable groups. Since fasting hypoglycemia can lead to complications during anesthesia, pre-procedure point-of-care glucose testing remains essential. Additionally, medical teams might need to adjust preparation protocols for infants and underweight children to ensure safety. However, further studies are needed to establish standardized glucose management guidelines for this population.

Frequently Asked Questions

Why are children at higher risk for hypoglycemia during bowel prep?

Children have lower glycogen stores and a higher metabolic rate than adults, making them more susceptible to fasting-induced glucose drops during the intensive preparation phase.

Which pediatric groups are at the highest risk?

The research indicates that younger age and lower weight percentiles are the most significant predictors of hypoglycemia during the bowel preparation process.

How can clinicians mitigate this risk?

Clinicians should implement point-of-care glucose testing before the procedure and consider adjusting fasting protocols for high-risk patients, such as infants or those with low body mass.

Disclaimer: This content is for informational and educational purposes only. It does not constitute professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified healthcare providers with any questions you may have regarding a medical condition. Refer to the latest local and national guidelines for clinical practice.

References

Hum SW et al. Increased risk of hypoglycemia in children and young adults after undergoing bowel preparation for colonoscopy. Am J Gastroenterol. 2026 May 26. doi: 10.14309/ajg.0000000000004065. PMID: 42189577.

Sahn B et al. Safety of a 1-day polyethylene glycol 3350 bowel preparation for colonoscopy in children. J Pediatr Gastroenterol Nutr. 2016;63(1):19-24. doi: 10.1097/MPG.0000000000001072.