Gum chewing during pre-anesthetic fasting.

Area of Science:

• Anesthesiology
• Gastroenterology
• Patient Care

Background:

• Fasting guidelines for patients before anesthesia commonly restrict gum chewing.
• The rationale for this restriction often relates to concerns about gastric volume and acidity.
• Potential benefits of gum chewing, such as promoting gastrointestinal motility, are often overlooked.

Purpose of the Study:

• To evaluate the evidence behind prohibitions on gum chewing during pre-anesthetic fasting.
• To assess the impact of gum chewing on gastric volume, acidity, and aspiration risk.
• To explore the potential benefits of allowing gum chewing in the pre-anesthetic period.

Main Methods:

• Review of existing literature and evidence regarding gum chewing and gastric physiology.
• Analysis of the risks associated with swallowing gum during the pre-anesthetic period.
• Consideration of the effects of gum chewing on gastrointestinal motility and gastric emptying.

Main Results:

• No evidence found that gum chewing increases gastric volume or acidity to a risky level.
• No increased risk of aspiration identified from occasional, unreported swallowing of gum.
• Evidence suggests gum chewing can enhance gastrointestinal motility and gastric emptying.

Conclusions:

• Current recommendations against pre-anesthetic gum chewing lack strong supporting evidence.
• Allowing gum chewing could improve patient comfort and well-being before anesthesia.
• Permitting gum chewing may facilitate novel drug delivery methods and should be considered for safe patient populations.