title: Ultrasonographic evaluation of gallbladder functions in patients with irritable bowel syndrome.
abstract: BACKGROUND
  The aim of the present study was to evaluate gallbladder function in irritable bowel syndrome (IBS) patients.
  
  
  METHODS
  The functions of gallbladder were investigated every 30 min for 4 h. In addition, ejection fraction of the gallbladder was calculated from the fasting and post-prandial volumes.
  
  
  RESULTS
  In IBS patients and healthy controls, fasting gallbladder volumes were 19.64 +/- 3.09 mL and 20.04 +/- 1.82 mL, and residual volumes after 3 h were 3.36 +/- 6.82 mL and 9.74 +/- 1.50 mL. Except for the residual volume after 3 h, all these results were not statistically significant. Residual volume after 3 h was statistically significantly lower in the IBS patients than in the controls (P < 0.001). Ejection fraction of the gallbladder was significantly higher in the IBS patients than in the controls (84% vs 55%, P < 0.001).
  
  
  CONCLUSIONS
  Gallbladder contraction in patients with IBS was not different from that of a control group at post-prandial second hour but was signigicantly more pronounced at the end of 3 h when compared with controls. Ejection fraction of the gallbladder was higher in IBS patients when compared with controls.
authors.affiliation: Department of Gastroenterology, Faculty of Medicine, Baskent University, Ankara, Turkey. mgbaskent@hotmail.com
authors.forename: Mustafa
authors.initials: M
authors.lastname: Güçlü
authors.forename: Ali
authors.initials: A
authors.lastname: Pourbagher
authors.forename: Ender
authors.initials: E
authors.lastname: Serin
authors.forename: Kemal
authors.initials: K
authors.lastname: Kul
authors.forename: Birol
authors.initials: B
authors.lastname: Ozer
authors.forename: Arif
authors.initials: A
authors.lastname: Cosar
authors.forename: M Okan
authors.initials: MO
authors.lastname: Içer
authors.forename: Gürden
authors.initials: G
authors.lastname: Gür
authors.forename: Sedat
authors.initials: S
authors.lastname: Boyacioglu
mesh_terms: D000328:Adult; D016022:Case-Control Studies; D005260:Female; D005704:Gallbladder / Q000000981:diagnostic imaging* / Q000503:physiopathology; D016473:Gallbladder Emptying / Q000502:physiology*; D006801:Humans; D043183:Irritable Bowel Syndrome / Q000000981:diagnostic imaging* / Q000503:physiopathology; D008297:Male; D019518:Postprandial Period; D014463:Ultrasonography