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Preoperative carbohydrate loading improves pediatric anesthesia cooperation and reduces postoperative nausea and vomitingCarbohydrate drinks may help children stay calm during surgery

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Key Takeaway
Consider preoperative carbohydrate loading to improve pediatric cooperation and reduce postoperative nausea and vomiting.

This meta-analysis evaluates the effects of preoperative carbohydrate loading (PCL) on pediatric patients undergoing surgery. The analysis synthesizes data from randomized controlled trials to assess behavioral indices, metabolic parameters, and postoperative nausea and vomiting (PONV).

Key findings indicate that PCL improves cooperation during anesthesia induction by addressing anxiety and sedation. Regarding metabolism, a compound carbohydrate solution was found to reduce postoperative insulin levels and insulin resistance compared to other methods. Furthermore, PCL significantly reduces the incidence of PONV, with a pronounced preventive effect against moderate-to-severe episodes. The analysis notes that while standard carbohydrate solutions may risk elevating postoperative blood glucose, compound carbohydrate solutions demonstrate a more favorable metabolic safety profile.

The results suggest that PCL provides multifaceted benefits for pediatric surgical patients. However, clinicians should note that different solution types are associated with distinct metabolic effect patterns. These findings support the use of PCL to improve both patient experience and metabolic stability in pediatric anesthesia.

Surgery is a scary time for any child. Beyond the physical procedure, kids often struggle with intense anxiety and feel very sick from nausea and vomiting after they wake up. New research looks at how giving children a specific carbohydrate drink before surgery, known as preoperative carbohydrate loading, can change their experience.

The study looked at over 1,400 children to see how these drinks affected them. The results showed that the right type of carbohydrate solution helped kids cooperate better during anesthesia and reduced feelings of anxiety. It also significantly cut down on moderate to severe cases of nausea and vomiting after surgery.

Not all drinks are the same, though. While a standard carbohydrate solution might cause blood sugar levels to rise, a compound carbohydrate solution showed a safer metabolic profile for the children's bodies. These findings suggest that choosing the right drink can help kids feel better physically and emotionally during their recovery.

What this means for you:
Special carbohydrate drinks before surgery can reduce anxiety and nausea in children undergoing procedures.

Common questions

How does a carbohydrate drink help children during surgery?

Giving children a carbohydrate solution before their procedure helps them stay calmer. The study found that these drinks improved cooperation during anesthesia induction and helped reduce feelings of anxiety. It also significantly lowered the chances of kids experiencing moderate to severe nausea or vomiting after they woke up.

Are there different types of carbohydrate solutions?

Yes, the type of solution matters for the child's metabolism. While a standard carbohydrate solution can sometimes cause blood glucose levels to rise, a compound carbohydrate solution was found to have a more favorable metabolic safety profile for the children.

Does this treatment help with nausea after surgery?

Yes, the study showed that preoperative carbohydrate loading significantly reduces the incidence of postoperative nausea and vomiting. It was especially effective at preventing moderate to severe episodes of sickness after the procedure.

Study Details

Study typeMeta analysis
EvidenceLevel 1
Follow-up216.0 mo
PublishedJul 2026
View Original Abstract ↓
OBJECTIVE: To evaluate the efficacy and safety of preoperative carbohydrate loading (PCL) in pediatric patients. METHODS: Following PRISMA 2020 guidelines, randomized controlled trials (RCTs) comparing PCL with fasting or placebo in patients aged ≤18 years were searched across nine databases up to July 9, 2025. Outcomes included behavioral indices (anxiety, sedation, and mask acceptance), metabolic parameters (postoperative blood glucose, insulin, and insulin resistance), and postoperative nausea and vomiting (PONV). Data were pooled using a random-effects meta-analysis model, and sensitivity analyses were conducted. RESULTS: This meta-analysis of 14 RCTs (1428 pediatric patients) demonstrates that PCL provides multidimensional benefits for pediatric patients. It effectively improves cooperation during anesthesia induction (reducing anxiety and enhancing sedation) and stabilizes metabolic status (the compound carbohydrate solution reduces postoperative insulin levels and insulin resistance). Furthermore, PCL significantly reduces the incidence of PONV, with a pronounced preventive effect against moderate-to-severe episodes. Notably, while a standard carbohydrate solution carries a risk of elevating postoperative blood glucose, the compound carbohydrate solution demonstrates a more favorable metabolic safety profile. CONCLUSION: PCL provides multifaceted benefits in pediatric surgery. Different solution types are associated with distinct metabolic effect patterns, a factor warranting consideration in clinical application.
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