title: Acromegaly is not associated with irritable bowel syndrome: a pilot study.
abstract: BACKGROUND
  In acromegaly, the gastrointestinal system is under the influence of excessive growth hormone (GH) and insulin like growth factor-1 (IGF-I). Increased bowel length and delayed transit time may cause functional disturbance of the bowel. The objective of the current study is to evaluate the frequency of irritable bowel syndrome (IBS) in cases with acromegaly.
  
  
  METHODS
  Twenty-three active cases with acromegaly newly diagnosed between 2010-2011 were included in the study. The control group consisted of ninety gender and age-matched healthy controls (HC). All cases were questioned for presence of IBS using Rome III criteria. Abdominal ultrasonography and colonoscopy results of acromegalic patients were obtained. In addition, cases with acromegaly were evaluated for their quality of life and status of depression by using the Acromegaly Quality of Life Questionnaire (AcroQoL) and Beck Depression Inventory (BDI), respectively.
  
  
  RESULTS
  The median GH and IGF-1 levels of cases with acromegaly were 5.72 [IQR: 2.2-34] ng/ml and 753 [IQR: 503-1050] ng/ml, respectively. The median AcroQoL score of patients with acromegaly was 56 [IQR: 43-71.5] and the median BDI score was 16 [IQR: 11-21]. Rome III diagnostic criteria were positive in 2 of 23 acromegaly patients and in 3 of 90 HC (p=0.26). IBS was present in 1 of 23 of the acromegaly patients compared to 3 of 90 HC (p=0.81).
  
  
  CONCLUSIONS
  Although acromegaly and IBS may cause similar gastrointestinal symptoms, acromegaly is not associated with a greater incidence of true IBS.
authors.affiliation: Department of Internal Medicine, University of Istanbul, Istanbul, Turkey.
authors.forename: Erkan
authors.initials: E
authors.lastname: Caglar
authors.forename: Esra
authors.initials: E
authors.lastname: Hatipoglu
authors.forename: Mutlu
authors.initials: M
authors.lastname: Niyazoglu
authors.forename: Ozlem
authors.initials: O
authors.lastname: Celik
authors.forename: Murat
authors.initials: M
authors.lastname: Tuncer
authors.forename: Pinar
authors.initials: P
authors.lastname: Kadioglu
mesh_terms: D000172:Acromegaly / Q000453:epidemiology*; D000328:Adult; D003113:Colonoscopy; D005260:Female; D006801:Humans; D015994:Incidence; D043183:Irritable Bowel Syndrome / Q000000981:diagnostic imaging / Q000453:epidemiology* / Q000473:pathology; D008297:Male; D008875:Middle Aged; D010865:Pilot Projects; D011788:Quality of Life; D014463:Ultrasonography