title: Risk factors for incomplete small-bowel capsule endoscopy.
abstract: BACKGROUND
  In 20% to 30% of capsule endoscopy (CE) procedures, the capsule does not reach the cecum within recording time, with incomplete imaging of the small bowel, which limits the value of CE.
  
  
  OBJECTIVE
  To identify possible risk factors for incomplete small-bowel CE examinations.
  
  
  METHODS
  Data from consecutive CE procedures performed between September 2003 and August 2007 were analyzed. All patients had received the same preparation before the CE procedure, including the administration of a prokinetic agent.
  
  
  METHODS
  Single-center retrospective study.
  
  
  METHODS
  A total of 291 CE studies.
  
  
  METHODS
  Data were collected regarding patient demographics and potential risk factors. Cecal incompletion rates were calculated. Risk factors were analyzed by using a binary regression analysis.
  
  
  RESULTS
  CE was incomplete in 55 cases (19%). The gastric transit time was significantly longer in patients with incomplete CE procedures than in patients with complete CE procedures (median 45 minutes vs 21 minutes, P= .005). Previous small-bowel surgery, hospitalization, moderate or poor bowel cleansing, and a gastric transit time longer than 45 minutes were identified as independent risk factors for incomplete CE procedures.
  
  
  CONCLUSIONS
  A retrospective study design.
  
  
  CONCLUSIONS
  The identification of several risk factors for incomplete CE procedures allows for selectively targeting these factors in future procedures to reduce the risk of incomplete CE examinations.
authors.affiliation: Department of Gastroenterology and Hepatology, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands.
authors.forename: Jessie
authors.initials: J
authors.lastname: Westerhof
authors.forename: Rinse K
authors.initials: RK
authors.lastname: Weersma
authors.forename: Jan J
authors.initials: JJ
authors.lastname: Koornstra
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000704:Analysis of Variance; D053705:Capsule Endoscopes; D053704:Capsule Endoscopy / Q000009:adverse effects / Q000379:methods*; D002648:Child; D015331:Cohort Studies; D016001:Confidence Intervals; D004868:Equipment Failure; D005260:Female; D006471:Gastrointestinal Hemorrhage / Q000175:diagnosis* / Q000601:surgery; D005772:Gastrointestinal Transit; D006801:Humans; D007421:Intestine, Small; D016015:Logistic Models; D008297:Male; D008875:Middle Aged; D011336:Probability; D012189:Retrospective Studies; D012307:Risk Factors; D012680:Sensitivity and Specificity; D018709:Statistics, Nonparametric; D013997:Time Factors; D055815:Young Adult