Electrogastrographic changes in children who undergo day-surgery anesthesia

Area of Science:

• Pediatric Anesthesiology
• Gastroenterology
• Medical Devices

Background:

• Postoperative nausea and vomiting (PONV) are frequent complications following general anesthesia in children.
• Current practices for resuming oral intake post-anesthesia lack standardized timing.
• Electrogastrography (EGG) offers a potential method to objectively assess gastrointestinal recovery.

Purpose of the Study:

• To determine the duration of emetic effects induced by general anesthesia in pediatric day surgery patients.
• To utilize electrogastrography (EGG) to objectively measure these effects.
• To establish evidence-based timing for the resumption of oral feeding post-anesthesia.

Main Methods:

• Children aged 3-12 years undergoing elective non-abdominal surgery were enrolled.
• A standard anesthesia protocol and caudal block were administered.
• Mobile electrogastrography (EGG) monitored gastric electrical activity preoperatively and for 2 hours postoperatively.

Main Results:

• Tachygratia, associated with nausea, normalized within 30 minutes post-anesthesia.
• EGG instability coefficients (DFIC and DPIC) returned to baseline within 1 hour postoperatively.
• Bradygratia, observed pre- and post-anesthesia, also normalized by 1 hour postoperatively.

Conclusions:

• General anesthesia causes significant, transient electrogastrography (EGG) changes in pediatric surgical patients.
• These EGG alterations revert to baseline levels approximately 1 hour after anesthesia reversal.
• Resuming oral feeding 1 hour post-general anesthesia is likely safe and may prevent nausea and vomiting.