Gastric Volume After Oral Ingestion of Water or Jelly in Volunteers

The aim of the study is to understand whether the time that patients should fast after oral ingestion of jelly is similar to that of water, before elective surgery.International guidelines on perioperative fasting recommend 2 hours with no clear fluids ingestion to reduce the likelihood of regurgitation and aspiration pneumonia. But nothing is recommended about the perioperative management of jelly ingestion.25 adult volunteers will be included on a crossover study. The first intervention will be randomized (oral intake of water or jelly) and in a second moment all participants will be submitted to the opposite intervention. Gastric content and volume will be evaluated through ultrasound.Exclusion criteria include morbid obesity, pregnancy, alcohol abuse and diseases or drugs that can prolong or accelerate gastric emptying such as gastric or esophageal surgery, diabetes mellitus, prokinetic or opioid use.Nowadays, the benefits of reducing preoperative fasting time are well known, such as avoiding dehydration and metabolic complications like ketoacidosis. It can also improve patient satisfaction.Oral jelly may improve preoperative hydration while also providing some nutritional support prior to procedures.

Inclusion Criteria:Adult volunteers working in the hospital Centro Hospitalar de Entre o Douro e Vouga (CHEDV)Exclusion Criteria:morbid obesitypregnancyalcohol abusediseases or drugs that can prolong or accelerate gastric emptying such as gastric or esophageal surgery, diabetes mellitus, prokinetic or opioid use, hypothyroidismintolerance to any of the components of jelly