H O Diaz Tartera1, D-L Webb1, A Kh Al-Saffar1, M A Halim1, G Lindberg2, P Sangfelt1, P M Hellström1. 1. Gastroenterology and Hepatology Unit, Department of Medical Sciences, Uppsala University, Uppsala, Sweden. 2. Gastroenterology and Hepatology Unit, Department of Medicine, Karolinska Institutet, Karolinska University Hospital, Huddinge, Sweden.
Abstract
BACKGROUND: There is interest in ultimately combining endoscopy and motility assessments. Gastric emptying (GET), small bowel (SBTT), colon (CTT) and whole gut transit (WGTT) times are conveniently obtained by SmartPill® wireless motility capsule (WMC) that records luminal pH, temperature and pressure. Reproducibility within same subjects and accuracy of software derived times (MotiliGI® ) were investigated for diagnostic application. GET and SBTT were separately measured using video capsule endoscopy (VCE). The aim of this investigation was to assess same subject reproducibility of WMC, accuracy of software derived transit times and relate to Pillcam® SB (small bowel) VCE motility data. METHODS: Seventy three healthy adults ingested a 260 kcal mixed meal followed by WMC tests. Food intake was permitted after 6 hours. Regional transit data was obtained for GET, SBTT and CTT, the sum yielding WGTT. Nineteen subjects repeated WMC tests 2 or 4 weeks later; a separate 70 underwent VCE while fasted. KEY RESULTS: Visually derived data from WMC yielded GET 3.46±0.27, SBTT 5.15±0.21, CTT 20.76±1.19 and WGTT 29.53±1.28 hours (mean±SEM). Pearson's correlation coefficients (r) against software derived results were: GET 0.78 (P<.0001), SBTT 0.28 (P<.05), CTT 0.96 (P<.0001), WGTT 0.99 (P<.0001). VCE yielded lower GET (0.71±0.08 hours) and SBTT (4.15±0.13 hours). CONCLUSIONS AND INFERENCES: GET, SBTT, CTT and WGTT obtained by WMC are commensurate with literature values, including by other methods. Visually and software derived transit times have strongest correlations for CTT and WGTT. WMC yields longer GET and SBTT than VCE, perhaps due to meal related effects on motility.
BACKGROUND: There is interest in ultimately combining endoscopy and motility assessments. Gastric emptying (GET), small bowel (SBTT), colon (CTT) and whole gut transit (WGTT) times are conveniently obtained by SmartPill® wireless motility capsule (WMC) that records luminal pH, temperature and pressure. Reproducibility within same subjects and accuracy of software derived times (MotiliGI® ) were investigated for diagnostic application. GET and SBTT were separately measured using video capsule endoscopy (VCE). The aim of this investigation was to assess same subject reproducibility of WMC, accuracy of software derived transit times and relate to Pillcam® SB (small bowel) VCE motility data. METHODS: Seventy three healthy adults ingested a 260 kcal mixed meal followed by WMC tests. Food intake was permitted after 6 hours. Regional transit data was obtained for GET, SBTT and CTT, the sum yielding WGTT. Nineteen subjects repeated WMC tests 2 or 4 weeks later; a separate 70 underwent VCE while fasted. KEY RESULTS: Visually derived data from WMC yielded GET 3.46±0.27, SBTT 5.15±0.21, CTT 20.76±1.19 and WGTT 29.53±1.28 hours (mean±SEM). Pearson's correlation coefficients (r) against software derived results were: GET 0.78 (P<.0001), SBTT 0.28 (P<.05), CTT 0.96 (P<.0001), WGTT 0.99 (P<.0001). VCE yielded lower GET (0.71±0.08 hours) and SBTT (4.15±0.13 hours). CONCLUSIONS AND INFERENCES: GET, SBTT, CTT and WGTT obtained by WMC are commensurate with literature values, including by other methods. Visually and software derived transit times have strongest correlations for CTT and WGTT. WMC yields longer GET and SBTT than VCE, perhaps due to meal related effects on motility.
Authors: A Desai; M O'Connor; B Neja; K Delaney; M Camilleri; A R Zinsmeister; A E Bharucha Journal: Neurogastroenterol Motil Date: 2018-05-02 Impact factor: 3.598
Authors: Annelies De Cuyper; Marcus Clauss; Myriam Hesta; An Cools; Guido Bosch; Wouter H Hendriks; Geert P J Janssens Journal: PLoS One Date: 2018-02-12 Impact factor: 3.240
Authors: Laura Pirkola; Reijo Laatikainen; Jussi Loponen; Sanna-Maria Hongisto; Markku Hillilä; Anu Nuora; Baoru Yang; Kaisa M Linderborg; Riitta Freese Journal: World J Gastroenterol Date: 2018-03-21 Impact factor: 5.742
Authors: Thomas A Zikos; Afrin N Kamal; Leila Neshatian; George Triadafilopoulos; John O Clarke; Monica Nandwani; Linda A Nguyen Journal: J Neurogastroenterol Motil Date: 2019-04-30 Impact factor: 4.924
Authors: J Philip Karl; Adrienne M Hatch; Steven M Arcidiacono; Sarah C Pearce; Ida G Pantoja-Feliciano; Laurel A Doherty; Jason W Soares Journal: Front Microbiol Date: 2018-09-11 Impact factor: 5.640