Gastrointestinal Residue Removal Using a Balloon Overtube under Ultrathin Endoscopic Navigation: Ex Vivo and In Vivo Experimental Studies

Pooled gastric residues involving blood clots and food interrupt appropriate endoscopic intervention, leading to poor outcomes in endoscopic hemostasis and lifesaving. However, procedures and devices that enable the effective removal of gastrointestinal residues remain unsatisfactory. This study aim...

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Veröffentlicht in:Journal of clinical medicine 2021-08, Vol.10 (17), p.3796, Article 3796
Hauptverfasser: Kozuka, Kazuhiro, Kobara, Hideki, Nishiyama, Noriko, Fujihara, Shintaro, Tada, Naoya, Matsui, Takanori, Takata, Tadayuki, Chiyo, Taiga, Kobayashi, Nobuya, Shi, Tingting, Fujita, Koji, Tani, Joji, Yachida, Tatsuo, Kondo, Akihiro, Kumamoto, Kensuke, Okano, Keiichi, Nishiyama, Akira, Deguchi, Kazushi, Masaki, Tsutomu
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container_issue 17
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container_title Journal of clinical medicine
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creator Kozuka, Kazuhiro
Kobara, Hideki
Nishiyama, Noriko
Fujihara, Shintaro
Tada, Naoya
Matsui, Takanori
Takata, Tadayuki
Chiyo, Taiga
Kobayashi, Nobuya
Shi, Tingting
Fujita, Koji
Tani, Joji
Yachida, Tatsuo
Kondo, Akihiro
Kumamoto, Kensuke
Okano, Keiichi
Nishiyama, Akira
Deguchi, Kazushi
Masaki, Tsutomu
description Pooled gastric residues involving blood clots and food interrupt appropriate endoscopic intervention, leading to poor outcomes in endoscopic hemostasis and lifesaving. However, procedures and devices that enable the effective removal of gastrointestinal residues remain unsatisfactory. This study aimed to evaluate the efficacy and safety of our developed suction method in ex vivo and in vivo studies. We created a hand-made device with a large suction diameter, consisting of a balloon overtube and an ultrathin endoscope for navigation. In the ex vivo study, we compared the success rate and the suctioning time for four types of simulated residue between a standard endoscope and our device. Our device had s significantly higher suction ability and a shorter procedure time than the standard endoscope. The subsequent in vivo animal study involved five beagle dogs that were administered with food jelly to mimic gastric residue. Suction was performed twice for five dogs (ten attempts). The outcome measure was the successful procedure rate; secondary outcomes were procedure-associated complications and procedure time. The procedure was successful in all attempts, without any complications. The mean procedure time was 5 min. This novel method enabled the efficient and safe removal of gastric residue, and our findings will likely lead to the development of the instrument.
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source PubMed Central Open Access; MDPI - Multidisciplinary Digital Publishing Institute; EZB-FREE-00999 freely available EZB journals; PubMed Central
subjects Biopsy
Blood clots
Clinical medicine
Endoscopy
Experiments
Food
General & Internal Medicine
Life Sciences & Biomedicine
Medicine, General & Internal
Science & Technology
Standard deviation
Ulcers
title Gastrointestinal Residue Removal Using a Balloon Overtube under Ultrathin Endoscopic Navigation: Ex Vivo and In Vivo Experimental Studies
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