Background: International guidelines allow healthy patients to drink clear liquid up to 2 h
before general anesthesia. Recently, MRI measurements have been used for tracking …

BACKGROUND: Although preoperative fluid intake 2 hours before anesthesia is generally
considered safe, there are concerns about delayed gastric emptying in obese subjects. In …

Purpose In many countries, patients are generally allowed to have clear fluids until 2–3 h
before surgery. In Japan, long preoperative fasting is still common practice. To shorten the …

Background: Preoperative ingestion of only clear fluids until 2 hours before induction of
anesthesia is a common preoperative fasting regimen. Gastric emptying times, however …

BACKGROUND: Preoperative administration of clear fluids by mouth has recently been
endorsed as a way to improve postoperative outcomes. A carbohydrate-containing …

Recent preanesthetic fasting practice allows patients to take clear fluids up to 2 h before
surgery without taking any antacid for the prophylaxis of aspiration pneumonia; this practice …

Background Surgical patients are asked to fast for a sufficient duration to ensure that the
amount of residual liquid in the stomach is within the safe range, thereby reducing the risk of …

Background Previous studies demonstrated conflicting results regarding the determinants of
gastric emptying for fluids. Our aim was to compare gastric emptying times of fluids with …

10 T. UMENAI, N. ARAI, E. CHIHARA, Effect of the preliminary hydration on gastric emptying
time for water in healthy volunteers, Acta Anaesthesiologica Scandinavica, 2009, 53, 2, 223 …

We have compared the effect of allowing free clear fluids until the time of oral premedication
with conventional preoperative fasting. In a prospective, randomized trial, the residual …