Contribution of Capsule Endoscopy Early in a Bleeding Episode to Treatment of Small Bowel Angioectasia: a Case Report
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medicina Case Report Contribution of Capsule Endoscopy Early in a Bleeding Episode to Treatment of Small Bowel Angioectasia: A Case Report Yoshinori Arai 1,2,*, Maiko Ogawa 1, Rikako Arimoto 1, Yoshitaka Ando 1, Daisuke Endo 1, Tatsuya Nakada 1, Ichiro Sugawara 1, Hiroshi Yokoyama 1 , Keiko Shimoyama 3, Hiroko Inomata 3, Yosuke Kawahara 3, Masayuki Kato 3, Seiji Arihiro 1 , Atsushi Hokari 1 and Masayuki Saruta 4 1 Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University Katsushika Medical Center, Tokyo 105-8461, Japan; [email protected] (M.O.); [email protected] (R.A.); [email protected] (Y.A.); [email protected] (D.E.); [email protected] (T.N.); [email protected] (I.S.); [email protected] (H.Y.); [email protected] (S.A.); [email protected] (A.H.) 2 Tekko Building Marunouchi Clinic, Tokyo 100-0005, Japan 3 Department of Endoscopy, The Jikei University Katsushika Medical Center, Tokyo 105-8461, Japan; [email protected] (K.S.); [email protected] (H.I.); [email protected] (Y.K.); [email protected] (M.K.) 4 Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo 105-8461, Japan; [email protected] * Correspondence: [email protected]; Tel.: +81-3-3603-2111 Abstract: Background: Recent advances in endoscopic devices such as small bowel capsule endoscopy and balloon-assisted endoscopy have improved the level of medical care for small bowel bleed- Citation: Arai, Y.; Ogawa, M.; ing. However, treating small bowel angioectasia remains challenging because repeated intermittent Arimoto, R.; Ando, Y.; Endo, D.; bleeding can occur from the multiple minute lesions (about 1 mm in size) that develop in a syn- Nakada, T.; Sugawara, I.; Yokoyama, chronous and metachronous manner. Here, we report a case of small bowel angioectasia in which H.; Shimoyama, K.; Inomata, H.; et al. capsule endoscopy performed early in a bleeding episode contributed to treatment. Case Summary:A Contribution of Capsule Endoscopy 66-year-old man with suspected small bowel bleeding underwent small bowel capsule endoscopy Early in a Bleeding Episode to Treatment of Small Bowel and balloon-assisted endoscopy with argon plasma coagulation hemostasis for a small intestinal Angioectasia: A Case Report. angioectasia. Because small bowel bleeding recurred intermittently after the treatment, small bowel Medicina 2021, 57, 321. https:// capsule endoscopy and balloon-assisted endoscopy were repeated when there was no bleeding, but doi.org/10.3390/medicina57040321 no abnormalities were found. Subsequent small bowel capsule endoscopy during a bleeding episode revealed bloody intestinal fluid in the proximal small intestine. Peroral balloon-assisted endoscopy Academic Editor: Atsushi Sakuraba was performed 2 days after SBCE for detailed observation of the small intestinal mucosa at the suspected bleeding site, and there a 1-mm Dieulafoy’s lesion with no active bleeding was identified. Received: 2 March 2021 We performed argon plasma coagulation, and no bleeding was observed thereafter. Conclusions: Accepted: 24 March 2021 Small bowel capsule endoscopy immediately after bleeding onset can identify the bleeding source of Published: 31 March 2021 multiple minute lesions in small bowel angioectasia. Publisher’s Note: MDPI stays neutral Keywords: small bowel capsule endoscopy; balloon-assisted endoscopy; small bowel angioectasia; with regard to jurisdictional claims in small bowel bleeding; argon plasma coagulation published maps and institutional affil- iations. 1. Introduction Gastrointestinal bleeding is reported to occur in 50–150 per 100,000 population, and is Copyright: © 2021 by the authors. Licensee MDPI, Basel, Switzerland. often encountered in daily clinical practice [1]. Medical care for gastrointestinal bleeding This article is an open access article consists of identification of the bleeding site and diagnostic evaluation and treatment of distributed under the terms and hemorrhagic lesions. Recent advances in endoscopic devices have improved the level conditions of the Creative Commons of medical care for gastrointestinal bleeding. Observation of the entire gastrointestinal Attribution (CC BY) license (https:// tract and diagnostic evaluation and treatment of hemorrhagic lesions has become possible creativecommons.org/licenses/by/ with the full use of upper gastrointestinal endoscopy, colonoscopy, small bowel capsule 4.0/). endoscopy (SBCE), and balloon-assisted endoscopy (BAE). Medicina 2021, 57, 321. https://doi.org/10.3390/medicina57040321 https://www.mdpi.com/journal/medicina Medicina 2021, 57, x FOR PEER REVIEW 2 of 8 Medicina 2021, 57, 321 tract and diagnostic evaluation and treatment of hemorrhagic lesions has become possible2 of 7 with the full use of upper gastrointestinal endoscopy, colonoscopy, small bowel capsule endoscopy (SBCE), and balloon-assisted endoscopy (BAE). Treating small bowel angioectasia, however, can still be challenging in daily clinical Treating small bowel angioectasia, however, can still be challenging in daily clinical practice because repeated intermittent bleeding can occur from the multiple minute le- practice because repeated intermittent bleeding can occur from the multiple minute lesions sions (about 1 mm in size) that develop in a synchronous and metachronous manner. The (about 1 mm in size) that develop in a synchronous and metachronous manner. The rebleeding rate after angioectasia treatment remains high, at 28.0–33.8% [2–4]. One reason rebleeding rate after angioectasia treatment remains high, at 28.0–33.8% [2–4]. One reason for this is the difficulty identifying such minute lesions by SBCE and BAE. The other rea- for this is the difficulty identifying such minute lesions by SBCE and BAE. The other reason son for this is the difficulty of identifying which of the multiple angioectatic lesions is the for this is the difficulty of identifying which of the multiple angioectatic lesions is the source of bleeding, because spontaneous hemostasis sometimes occurs during examina- source of bleeding, because spontaneous hemostasis sometimes occurs during examination. tion. Moreover, since the small intestinal mucosa regenerates fastest of any tissue in the Moreover, since the small intestinal mucosa regenerates fastest of any tissue in the body, body, the hemorrhagic lesion is covered by regenerated epithelium within 3–5 days and the hemorrhagic lesion is covered by regenerated epithelium within 3–5 days and becomes becomes difficult to identify [5]. difficult to identify [5]. Given thatthat itit isis essentialessential toto accuratelyaccurately identifyidentify thethe bleedingbleeding sourcesource fromfrom amongamong thethe multiple minute lesions in in small small bowel bowel angioectasia angioectasia,, SBCE SBCE should should be be performed performed immedi- imme- diatelyately after after bleeding bleeding onset onset [6,7] [6., 7Detection]. Detection of blood of blood or bloody or bloody intestinal intestinal fluid fluid by SBCE by SBCE is an isimportant an important finding finding indic indicatingating the bleeding the bleeding site; site;then, then, BAE BAE should should be performed be performed for forde- detailedtailed observation observation of of the the small small intestinal intestinal mucosa mucosa at at the the suspected suspected bleeding site, enabling thethe bleedingbleeding sourcesource toto bebe identifiedidentified andand treatedtreated fromfrom amongamong multiplemultiple minuteminute lesionslesions inin smallsmall bowelbowel angioectasia.angioectasia. 2. Case Presentation TheThe patientpatient was was a a 66-year-old 66-year-old man man with with a chief a chief complaint complaint of the of passage the passage of tarry of stools. tarry Hisstools. past His medical past medical history history included included atrial atrial fibrillation fibrillation and arteriosclerosisand arteriosclerosis obliterans, obliterans, for whichfor which he was he was taking taking antithrombotic antithrombotic agents agents (clopidogrel (clopidogrel sulfate sulfate and aspirin and aspirin enteric-coated enteric- tablets).coated tablets). He was He on was hemodialysis on hemodialysis for diabetic for diabetic nephropathy. nephropathy. After confirmingconfirming anemiaanemia (hemoglobin(hemoglobin [Hb][Hb] levellevel 6.86.8 g/dL),g/dL), we diagnosed gastroin- testinaltestinal bleeding.bleeding. No abnormalities werewere foundfound onon upperupper gastrointestinalgastrointestinal endoscopyendoscopy andand colonoscopy.colonoscopy. WeWe suspectedsuspected smallsmall bowelbowel bleedingbleeding (SBB)(SBB) andand performedperformed SBCESBCE (PillCamTM(PillCamTM SB3 Capsule, Medtronic, Medtronic, Minneapolis, Minneapolis, MN, MN, USA) USA) 7 days 7 days after after the thelast lasttarry tarry stool. stool. We iden- We identifiedtified 2-mm 2-mm angioectasia angioectasia (Yano (Yano-Yamamoto-Yamamoto classification classification Type Type 1b 1b [8] [8)]) i inn the proximalproximal smallsmall intestine during during SBCE, SBCE, and and no no blood blood retention retention was was seen seen within within the theintestinal intestinal lumen lu- men(Figure(Figure 1). Peroral1) . Peroral BAE BAEwas wasperformed, performed, and andargon argon plasma plasma coagulation coagulation (APC) (APC) was wasper- performedformed for forthis this lesion lesion (Figure (Figure 2).2 ). Figure 1.1. SmallSmall bowelbowel capsulecapsule endoscopy endoscopy findings findings at at first first examination. examination.