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Evaluation of constipation in older adults: Radioopaque markers (ROMs) versus wireless motility capsule (WMC).
MedLine Citation:
PMID:  22572600     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
There is scarce information regarding assessment of constipation in older subjects. We examined regional and whole-gut transit time (WGTT) with wireless motility capsule (WMC) and compared this with radioopaque markers (ROM) transit. 39 constipated and 11 healthy older subjects (≥65 years) ingested a ROM capsule and WMC, wore a data receiver and kept stool diaries for 5 days. WMC recordings were analyzed for colonic transit time (CTT), WGTT and gastric emptying time (GET). Radiographs obtained on day 5 assessed ROM transit. Results for each device were compared. The CTT (p=<0.0001), WGTT (p=<0.001) and GET (p=<0.04) as measured by WMC were all slower in constipated subjects compared to healthy subjects. ROM colonic transit was also slower (p=<0.007) in constipated compared to healthy subjects. The diagnostic utility for identifying subjects with constipation as assessed by receiver operating characteristics were similar; 0.85 (WMC) versus 0.73 (ROM). Device agreement for slow colonic transit was 88% with good correlation between WMC and ROM (CTT r=0.718, p=0.0001, WGTT r=0.693, p=0.0001). Slow transit constipation was identified in 28% with ROM and 32% with WMC. No adverse events were recorded. WMC is a safe and useful device that provides objective diagnosis of delayed colonic and whole gut transit in older constipated adults. It is a radiation-free, physiologic and ambulatory technique that provides additional diagnostic information than ROM.
Authors:
S S C Rao; E Coss-Adame; J Valestin; K Mysore
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-5-7
Journal Detail:
Title:  Archives of gerontology and geriatrics     Volume:  -     ISSN:  1872-6976     ISO Abbreviation:  -     Publication Date:  2012 May 
Date Detail:
Created Date:  2012-5-10     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8214379     Medline TA:  Arch Gerontol Geriatr     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2012 Elsevier Ireland Ltd. All rights reserved.
Affiliation:
Section of Gastroenterology and Hepatology, Georgia Health Sciences University, Medical College of Georgia, 1120 15th Street, Augusta, GA 30912, USA.
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