PMID: 8949637Sep 1, 1996Paper

Assessment of residual gastric volume and thirst in patients who drink before gastroscopy

Gut
S M GreenfieldF R Vicary

Abstract

Before endoscopy patients undergo an uncomfortable fluid fast to reduce the risk of gastric acid aspiration and to ensure good endoscopic views are obtained. However, fluids rapidly leave the stomach and thus a long fluid fast before endoscopy may not be required. The object of this study was to establish whether drinking before endoscopy is safe and relieves patients' symptoms of thirst. 88 patients with American Society of Anaesthesiologists classification of physical status grades I and II were recruited in a controlled randomised single blind trial. The volume and pH of gastric aspirate obtained at gastroscopy was assessed in patients who drank 330 ml of water a minimum 90 minutes before their endoscopy and compared with values in patients who starved overnight. 44 patients who drank ('drinkers') 330 ml of water a mean 117 minutes before their morning gastroscopy had a similar volume and pH of gastric aspirate compared with 44 patients starved overnight ('starvers'); median volume 12.5 ml versus 10 ml, median pH 2.0 versus 2.0; 'drinkers' versus 'starvers' (NS). Before endoscopy patients were asked to score their thirst and hunger ratings as either none, mild, moderate or severe. Ratings for moderate and severe thirst were ...Continue Reading

References

Jan 1, 1988·Canadian Journal of Anaesthesia = Journal Canadien D'anesthésie·A HutchinsonC R Reid
Nov 1, 1974·Anesthesia and Analgesia·R B Roberts, M A Shirley
Jul 1, 1984·Anesthesia and Analgesia·C F JamesB C Ruiz
Jan 1, 1993·British Journal of Anaesthesia·S PhillipsT Davidson
Apr 1, 1951·The Journal of Physiology·J N HUNT, W R SPURRELL
Aug 1, 1946·American Journal of Obstetrics and Gynecology·C L MENDELSON

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Citations

Nov 21, 2012·Nutrition Reviews·Mindy Millard-StaffordTracy L Norman
Aug 13, 2013·Gastroenterology Clinics of North America·Ala I Sharara, Rachel R Abou Mrad
May 1, 1997·Gastrointestinal Endoscopy·G J WebsterE R Beck
Apr 5, 2011·Gastrointestinal Endoscopy·Deepak Agrawal, Don C Rockey
Apr 20, 2010·Prevention Science : the Official Journal of the Society for Prevention Research·Erica M Woodin, K Daniel O'Leary
Aug 26, 2017·Frontline Gastroenterology·J L CallaghanP Patel

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