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논문 기본 정보

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학술저널
저자정보
Daming Sun (Engineering Research Center of Medical Electronics and Information Technology, Chongqing University of Posts and Telecommunications, Chongqing, China) Kar Man Lo (California Medical Innovations Institute, San Diego, CA, USA) Ssu-Chi Chen (Department of Surgery, the Chinese University of Hong Kong, Shatin, Hong Kong) Wing Wa Leung (Department of Surgery, the Chinese University of Hong Kong, Shatin, Hong Kong) Cherry Wong (Department of Surgery, the Chinese University of Hong Kong, Shatin, Hong Kong) Tony Mak (Department of Surgery, the Chinese University of Hong Kong, Shatin, Hong Kong) Simon Ng (Department of Surgery, the Chinese University of Hong Kong, Shatin, Hong Kong) Kaori Futaba (Department of Surgery, the Chinese University of Hong Kong, Shatin, Hong Kong) Hans Gregersen (Department of Surgery, the Chinese University of Hong Kong, Shatin, Hong Kong)
저널정보
대한소화관운동학회(현 대한소화기능성질환.운동학회) Journal of Neurogastroenterology and Motility (JNM) Journal of Neurogastroenterology and Motility (JNM) Vol.30 No.3
발행연도
2024.7
수록면
373 - 378 (6page)
DOI
10.5056/jnm22177

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Background/AimsIt is a common belief that constipated patients have hard feces that contributes to the difficulties defecating. To the best of our knowledge, no studies had been published on controlled evacuation of simulated feces with different consistencies. MethodsTwelve normal subjects were recruited for studies with the simulated feces device “Fecobionics” of different consistency (silicone shore 0A-40A corresponding to Bristol stool form scale types 2-4). The subjects filled out questionnaires and had the balloon expulsion test and anorectal manometry done for reference. The Fecobionics probes were inserted in rectum in random order with +20 minutes between insertions. The bag was filled to urge-to-defecate and evacuations took place in privacy. Non-parametric statistics with median and quartiles are provided. ResultsOne subject was excluded due to technical issues, and another had abnormal anorectal manometry–balloon expulsion test. The 4 females/6 males subjects were aged 23 (range 20-48) years. Most differences were observed between the 0A and 10A probe (duration, maximum bag pressure, duration x maximum bag pressure, and relaxation of the front pressure and the bend angle during evacuation), eg, the duration was 9 (8-12) seconds at 0A and 18 (12-21) seconds at 10A (P < 0.05), and maximum bag pressure was 107 (96-116) cmH2O at 0A and 140 (117-162) cmH2O at 10A (P < 0.05). The bend angle before evacuation differed between the probes whereas only the 10A differed from 40A during defecation. The 10A was harder to evacuate than the 0A probe. Except for the bend angles, no further significant change was observed from 10A to 40A. ConclusionFecal consistency affects defecatory parameters.

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