Digestive Diseases and Sciences

, Volume 56, Issue 10, pp 2928–2938

Generalized Transit Delay on Wireless Motility Capsule Testing in Patients with Clinical Suspicion of Gastroparesis, Small Intestinal Dysmotility, or Slow Transit Constipation

  • Braden Kuo
  • Monthira Maneerattanaporn
  • Allen A. Lee
  • Jason R. Baker
  • Stephen M. Wiener
  • William D. Chey
  • Gregory E. Wilding
  • William L. Hasler
Original Article



The prevalence of generalized transit delay and relation to symptoms in suspected gastroparesis, intestinal dysmotility, or slow transit constipation are unknown.


The aims of this study were (1) to define prevalence of generalized dysmotility using wireless motility capsules (WMC), (2) to relate to symptoms in suspected regional delay, (3) to compare results of WMC testing to conventional transit studies to quantify new diagnoses, and (4) to assess the impact of results of WMC testing on clinical decisions.


WMC transits were analyzed in 83 patients with suspected gastroparesis, intestinal dysmotility, or slow transit constipation.


Isolated regional delays were observed in 32% (9% stomach, 5% small bowel, 18% colon). Transits were normal in 32% and showed generalized delays in 35%. Symptom profiles were similar with normal transit, isolated delayed gastric, small intestinal, and colonic transit, and generalized delay (P = NS). Compared to conventional tests, WMC showed discordance in 38% and provided new diagnoses in 53%. WMC testing influenced management in 67% (new medications 60%; modified nutritional regimens 14%; surgical referrals 6%) and eliminated needs for testing not already done including gastric scintigraphy (17%), small bowel barium transit (54%), and radioopaque colon marker tests (68%).


WMC testing defines localized and generalized transit delays with suspected gastroparesis, intestinal dysmotility, or slow transit constipation. Symptoms do not predict the results of WMC testing. WMC findings provide new diagnoses in >50%, may be discordant with conventional tests, and can influence management by changing treatments and eliminating needs for other tests. These findings suggest potential benefits of this method in suspected dysmotility syndromes and mandate prospective investigation to further define its clinical role.


Gastric emptying Colonic transit Nausea and vomiting Constipation Intestinal pseudoobstruction 


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Copyright information

© Springer Science+Business Media, LLC 2011

Authors and Affiliations

  • Braden Kuo
    • 1
  • Monthira Maneerattanaporn
    • 2
  • Allen A. Lee
    • 3
  • Jason R. Baker
    • 2
  • Stephen M. Wiener
    • 4
  • William D. Chey
    • 2
  • Gregory E. Wilding
    • 5
  • William L. Hasler
    • 2
  1. 1.Division of GastroenterologyMassachusetts General HospitalBostonUSA
  2. 2.Division of GastroenterologyUniversity of Michigan Health SystemAnn ArborUSA
  3. 3.Division of GastroenterologyTufts Medical CenterBostonUSA
  4. 4.Center for Digestive CarePentucket MedicalHaverhillUSA
  5. 5.Department of StatisticsState University of New York at BuffaloBuffaloUSA

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