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Hirata I, Tsuboi A, Matsubara Y, Sumioka A, Takasago T, Tanaka H, Yamashita K, Takigawa H, Urabe Y, Oka S. Clinical usefulness and acceptability of small-bowel capsule endoscopy with panoramic imaging compared with axial imaging in Japanese patients. DEN OPEN 2025; 5:e389. [PMID: 38845631 PMCID: PMC11154819 DOI: 10.1002/deo2.389] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/26/2024] [Revised: 04/25/2024] [Accepted: 05/05/2024] [Indexed: 06/09/2024]
Abstract
Objectives We aimed to evaluate the usefulness and acceptability of CapsoCam Plus (CapsoCam) in Japanese patients. Methods This retrospective single-center study enrolled 930 patients with suspected small-bowel bleeding (SSBB) who underwent capsule endoscopy. Thirty-three patients using CapsoCam and PillCam SB3 (SB3) were matched using propensity score matching. The diagnostic yield and the acceptability of CapsoCam were evaluated. Results There was no SSBB case where capsule endoscopy was performed within 48 h of bleeding. CapsoCam had a significantly higher observation rate of the entire small bowel (97% vs. 73%, p = 0.006) and Vater's papilla (82% vs. 15%, p < 0.001) than SB3. The reading time of CapsoCam was significantly longer than that of SB3 (30 vs. 25 min, p < 0.001), and CapsoCam's time from the capsule endoscopy swallowing to read completion was longer than that of SB3 (37 vs. 12 h, p < 0.001). The two groups showed no difference in the capsule endoscopy findings according to the P classification. Notably, 85% of the patients using CapsoCam reported examination distress as "not at all" or "almost not," and 94% reported swallowing difficulty as "very easy" or "easy." Conclusions CapsoCam took time to read; however, it is a well-tolerated examination with a high observation rate of Vater's papilla and entire small-bowel mucosa. Detectability of bleeding sources was comparable in both modalities for cases of occult SSBB and overt SSBB more than 48 h after bleeding. CapsoCam is a useful modality for patients with SSBB.
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Affiliation(s)
- Issei Hirata
- Department of GastroenterologyGraduate School of Biomedical and Health SciencesHiroshima UniversityHiroshimaJapan
| | - Akiyoshi Tsuboi
- Department of GastroenterologyGraduate School of Biomedical and Health SciencesHiroshima UniversityHiroshimaJapan
| | - Yuka Matsubara
- Department of GastroenterologyGraduate School of Biomedical and Health SciencesHiroshima UniversityHiroshimaJapan
| | - Akihiko Sumioka
- Department of GastroenterologyGraduate School of Biomedical and Health SciencesHiroshima UniversityHiroshimaJapan
| | - Takeshi Takasago
- Department of GastroenterologyGraduate School of Biomedical and Health SciencesHiroshima UniversityHiroshimaJapan
| | - Hidenori Tanaka
- Department of GastroenterologyGraduate School of Biomedical and Health SciencesHiroshima UniversityHiroshimaJapan
| | - Ken Yamashita
- Department of GastroenterologyGraduate School of Biomedical and Health SciencesHiroshima UniversityHiroshimaJapan
| | - Hidehiko Takigawa
- Department of GastroenterologyGraduate School of Biomedical and Health SciencesHiroshima UniversityHiroshimaJapan
| | - Yuji Urabe
- Department of GastroenterologyGraduate School of Biomedical and Health SciencesHiroshima UniversityHiroshimaJapan
| | - Shiro Oka
- Department of GastroenterologyGraduate School of Biomedical and Health SciencesHiroshima UniversityHiroshimaJapan
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Pioche M, Cunha Neves JA, Pohl H, Lê MQ, Grau R, Dray X, Yzet C, Mochet M, Jacques J, Wallenhorst T, Rivory J, Siret N, Peillet AL, Chevaux JB, Mion F, Chaput U, Jacob P, Grinberg D, Saurin JC, Baddeley R, Rodriguez de Santiago E, Cottinet PJ. The environmental impact of small-bowel capsule endoscopy. Endoscopy 2024. [PMID: 38657660 DOI: 10.1055/a-2313-5142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 04/26/2024]
Abstract
INTRODUCTION The environmental impact of endoscopy, including small-bowel capsule endoscopy (SBCE), is a topic of growing attention and concern. This study aimed to evaluate the greenhouse gas (GHG) emissions (kgCO2) generated by an SBCE procedure. METHODS Life cycle assessment methodology (ISO 14040) was used to evaluate three brands of SBCE device and included emissions generated by patient travel, bowel preparation, capsule examination, and video recording. A survey of 87 physicians and 120 patients was conducted to obtain data on travel, activities undertaken during the procedure, and awareness of environmental impacts. RESULTS The capsule itself (4 g) accounted for < 6 % of the total product weight. Packaging (43-119 g) accounted for 9 %-97 % of total weight, and included deactivation magnets (5 g [4 %-6 %]) and paper instructions (11-50 g [up to 40 %]). A full SBCE procedure generated approximately 20 kgCO2, with 0.04 kgCO2 (0.2 %) attributable to the capsule itself and 18 kgCO2 (94.7 %) generated by patient travel. Capsule retrieval using a dedicated device would add 0.98 kgCO2 to the carbon footprint. Capsule deconstruction revealed materials (e. g. neodymium) that are prohibited from environmental disposal; 76 % of patients were not aware of the illegal nature of capsule disposal via wastewater, and 63 % would have been willing to retrieve it. The carbon impact of data storage and capsule reading was negligible. CONCLUSION The carbon footprint of SBCE is mainly determined by patient travel. The capsule device itself has a relatively low carbon footprint. Given that disposal of capsule components via wastewater is illegal, retrieval of the capsule is necessary but would likely be associated with an increase in device-related emissions.
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Affiliation(s)
- Mathieu Pioche
- Endoscopy and Gastroenterology Unit, Edouard Herriot Hospital, Hospices Civils de Lyon, Lyon, France
| | - Joao A Cunha Neves
- Department of Gastroenterology, Algarve University Hospital Centre, Portimão, Portugal
| | - Heiko Pohl
- Departments of Gastroenterology, VA Medical Center, White River Junction, Vermont; and Dartmouth-Hitchcock Medical Center, Lebanon, New Hampshire, USA
| | - Minh-Quyen Lê
- Material Analysis Laboratory, INSA Lyon, Villeurbanne, France
| | - Raphaelle Grau
- Endoscopy and Gastroenterology Unit, Edouard Herriot Hospital, Hospices Civils de Lyon, Lyon, France
| | - Xavier Dray
- Sorbonne University, Centre for Digestive Endoscopy, Hôpital Saint-Antoine, APHP, Paris, France
| | - Clara Yzet
- Endoscopy and Gastroenterology Unit, University Hospital, Amiens, France
| | - Mikael Mochet
- Endoscopy and Gastroenterology Unit, Edouard Herriot Hospital, Hospices Civils de Lyon, Lyon, France
| | - Jérémie Jacques
- Gastroenterology and Endoscopy Unit, Dupuytren University Hospital, Limoges, France
| | - Timothée Wallenhorst
- Gastroenterology and Endoscopy Unit, University Hospital Pontchaillou, Rennes, France
| | - Jérôme Rivory
- Endoscopy and Gastroenterology Unit, Edouard Herriot Hospital, Hospices Civils de Lyon, Lyon, France
| | - Nadège Siret
- Endoscopy and Gastroenterology Unit, Edouard Herriot Hospital, Hospices Civils de Lyon, Lyon, France
| | - Anne-Laure Peillet
- Endoscopy and Gastroenterology Unit, Edouard Herriot Hospital, Hospices Civils de Lyon, Lyon, France
| | | | - François Mion
- Digestive Physiology Department, Hospices Civils de Lyon, Lyon, France
| | - Ulriikka Chaput
- Sorbonne University, Centre for Digestive Endoscopy, Hôpital Saint-Antoine, APHP, Paris, France
| | - Philippe Jacob
- Endoscopy and Gastroenterology Unit, Edouard Herriot Hospital, Hospices Civils de Lyon, Lyon, France
- Gastroenterology and Endoscopy Unit, Nimes Private Clinic, Nimes, France
| | - Daniel Grinberg
- Material Analysis Laboratory, INSA Lyon, Villeurbanne, France
- Cardiac Surgery, Cardiologic Hospital, Hospices Civils de Lyon, Lyon, France
| | - Jean-Christophe Saurin
- Endoscopy and Gastroenterology Unit, Edouard Herriot Hospital, Hospices Civils de Lyon, Lyon, France
| | - Robin Baddeley
- Wolfson Unit for Endoscopy, St Mark's Hospital and Academic Institute; King's Health Partners Institute for Therapeutic Endoscopy, King's College Hospital; and Imperial College London, London, UK
| | - Enrique Rodriguez de Santiago
- Department of Gastroenterology and Hepatology, Hospital Universitario Ramón y Cajal, Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), CIBEREHD, Universidad de Alcalá, Madrid, Spain
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Nandhra GK, Chaichanavichkij P, Birch M, Scott SM. Gastrointestinal Transit Times in Health as Determined Using Ingestible Capsule Systems: A Systematic Review. J Clin Med 2023; 12:5272. [PMID: 37629314 PMCID: PMC10455695 DOI: 10.3390/jcm12165272] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Revised: 07/27/2023] [Accepted: 08/07/2023] [Indexed: 08/27/2023] Open
Abstract
BACKGROUND Ingestible capsule (IC) systems can assess gastrointestinal (GI) transit times as a surrogate for gut motility for extended periods of time within a minimally invasive, radiation-free and ambulatory setting. METHODS A literature review of IC systems and a systematic review of studies utilizing IC systems to measure GI transit times in healthy volunteers was performed. Screening for eligible studies, data extraction and bias assessments was performed by two reviewers. A narrative synthesis of the results was performed. RESULTS The literature review identified 23 different IC systems. The systematic review found 6892 records, of which 22 studies were eligible. GI transit time data were available from a total of 1885 healthy volunteers. Overall, seventeen included studies reported gastric emptying time (GET) and small intestinal transit time (SITT). Colonic transit time (CTT) was reported in nine studies and whole gut transit time (WGTT) was reported in eleven studies. GI transit times in the included studies ranged between 0.4 and 15.3 h for GET, 3.3-7 h for SITT, 15.9-28.9 h for CTT and 23.0-37.4 h for WGTT. GI transit times, notably GET, were influenced by the study protocol. CONCLUSIONS This review provides an up-to-date overview of IC systems and reference ranges for GI transit times. It also highlights the need to standardise protocols to differentiate between normal and pathological function.
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Affiliation(s)
- Gursharan Kaur Nandhra
- National Bowel Research Centre and GI Physiology Unit, Blizard Institute, Centre for Neuroscience, Surgery & Trauma, Queen Mary University of London, London E1 4NS, UK; (P.C.); (M.B.); (S.M.S.)
- Clinical Physics, Barts Health NHS Trust, The Royal London Hospital, London E1 2BL, UK
| | - Phakanant Chaichanavichkij
- National Bowel Research Centre and GI Physiology Unit, Blizard Institute, Centre for Neuroscience, Surgery & Trauma, Queen Mary University of London, London E1 4NS, UK; (P.C.); (M.B.); (S.M.S.)
| | - Malcolm Birch
- National Bowel Research Centre and GI Physiology Unit, Blizard Institute, Centre for Neuroscience, Surgery & Trauma, Queen Mary University of London, London E1 4NS, UK; (P.C.); (M.B.); (S.M.S.)
- Clinical Physics, Barts Health NHS Trust, The Royal London Hospital, London E1 2BL, UK
| | - S. Mark Scott
- National Bowel Research Centre and GI Physiology Unit, Blizard Institute, Centre for Neuroscience, Surgery & Trauma, Queen Mary University of London, London E1 4NS, UK; (P.C.); (M.B.); (S.M.S.)
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Which model of small bowel capsule endoscopy has a better diagnostic yield? A systematic review and meta-analysis. Acta Gastroenterol Belg 2022; 85:509-517. [DOI: 10.51821/85.3.10322] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Background and study aims: Small-bowel capsule endoscopy (SBCE) is a safe and efficient method for diagnosis of small-bowel diseases. Since its development, different models have appeared. The aim of this study was to analyze which of the different models of SBCE has the best diagnostic yield.
Patients and methods: Extensive medical literature research was reviewed, using MESH terms, searching studies comparing different SBCE types. We analyzed the diagnostic yield of all the comparisons and when there were 2 or more studies that compared the same model of SBCEs, a meta-analysis was performed.
Results: Ten eligible studies including 1065 SBCEs procedures were identified. The main indication was occult gastrointestinal bleeding in 9/10 studies. Two of them included anemia, chronic diarrhea and/or chronic abdominal pain. The indication in one article was celiac disease. In 9 studies, different types of SBCEs (MiroCam, Endocapsule, OMOM and CapsoCam) were compared with PillCam (SB, SB2 and SB3). Three studies compared MiroCam vs PillCam and CapsoCam vs PillCam, while two studies contrast Endocapsule vs PillCam. None of the SBCEs show superiority over PillCam [OR 0.78 (95%CI;0.60-1.01)]. One study compared SBCEs other than Pillcam (MiroCam vs Endocapsule). Nine studies did not find statistical differences between SBCEs, one showed better diagnostic yield of Mirocam compared with PillCam SB3 (p=0.02). The difference between these SBCE was not replayed in the metaanalysis [OR 0.77 (95%CI;0.49-1.21)].
Conclusions: Despite the appearance of new SBCE models, there are no differences in diagnostic yield; therefore, SBCE endoscopist’s performance should be based on experience and availability.
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5
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Nakamura T. Capsule endoscopy in Japan. Dig Endosc 2022; 34 Suppl 2:76-78. [PMID: 35132684 DOI: 10.1111/den.14236] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Tetsuya Nakamura
- Department of Medical Informatics, School of Medicine, Dokkyo Medical University, Tochigi, Japan
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Enns C, Galorport C, Ou G, Enns R. Assessment of Capsule Endoscopy Utilizing Capsocam Plus in Patients With Suspected Small Bowel Disease Including Pilot Study With Remote Access Patients During Pandemic. J Can Assoc Gastroenterol 2021; 4:269-273. [PMID: 34988365 PMCID: PMC8697548 DOI: 10.1093/jcag/gwaa042] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Accepted: 11/16/2020] [Indexed: 11/28/2022] Open
Abstract
Background CapsoCam Plus is a capsule endoscopy (CE) system that utilizes four cameras
to capture a panoramic view. This has theoretical advantage over
conventional forward-viewing CE with limited field of view. Its ease of
administration without requiring any additional equipment during the
recording also provides a unique opportunity for patients to self-administer
the test. We aimed to evaluate real-life experience using this novel system
and to determine feasibility of a remote access program. Methods Retrospective chart review was conducted for consecutive adult outpatients
who underwent CE using CapsoCam Plus. Patients with significant challenges
for in-person procedures were selected for remote access through mail
courier services. Gastric transit time, small bowel transit time, completion
rate, diagnostic yield and adverse events were compared between remote
access versus usual practice. Results Ninety-four patients (52.1% male) were included, with 28 in remote access
program. Most common indication was gastrointestinal bleeding (85.1%).
Complete examination was achieved in 87 patients. Five (5.3%)
patients’ capsule remained in stomach during the recording, while two
(2.1%) patients missed capsule retrieval. Median small bowel and gastric
transit times were 231.9 (interquartile range [IQR] 169.5–308.2) and
27.6 (IQR 13.8–63.5) minutes, respectively. Diagnostic yield was
23.4%. There was no difference in completion rate or transit times between
two groups, but diagnostic yield was higher in remote access group (odds
ratio 3.80, 95% confidence interval 1.28–11.31). One patient required
elective endoscopic retrieval of capsule. Conclusion CapsoCam Plus can be safely administered remotely with a high degree of
success, which may facilitate timely investigations while limiting
nonessential physical interactions during pandemic.
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Affiliation(s)
- Chasyn Enns
- Division of Gastroenterology, Department of Medicine, St. Paul’s Hospital, University of British Columbia, Vancouver, British Columbia, Canada
| | - Cherry Galorport
- Division of Gastroenterology, Department of Medicine, St. Paul’s Hospital, University of British Columbia, Vancouver, British Columbia, Canada
| | - George Ou
- Division of Gastroenterology, Department of Medicine, St. Paul’s Hospital, University of British Columbia, Vancouver, British Columbia, Canada
| | - Robert Enns
- Division of Gastroenterology, Department of Medicine, St. Paul’s Hospital, University of British Columbia, Vancouver, British Columbia, Canada
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7
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Nam JH, Lee KH, Lim YJ. Examination of Entire Gastrointestinal Tract: A Perspective of Mouth to Anus (M2A) Capsule Endoscopy. Diagnostics (Basel) 2021; 11:diagnostics11081367. [PMID: 34441301 PMCID: PMC8394372 DOI: 10.3390/diagnostics11081367] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Revised: 07/25/2021] [Accepted: 07/27/2021] [Indexed: 12/14/2022] Open
Abstract
Capsule endoscopy (CE) is the only non-invasive diagnostic tool that enables the direct visualization of the gastrointestinal (GI) tract. Even though CE was initially developed for small-bowel investigation, its clinical application is expanding, and technological advances continue. The final iteration of CE will be a mouth to anus (M2A) capsule that investigates the entire GI tract by the ingestion of a single capsule. This narrative review describes the current developmental status of CE and discusses the possibility of realizing an M2A capsule and what needs to be overcome in the future.
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Affiliation(s)
- Ji Hyung Nam
- Division of Gastroenterology, Department of Internal Medicine, Dongguk University Ilsan Hospital, Dongguk University College of Medicine, Goyang 10326, Korea;
| | - Kwang Hoon Lee
- Division of Rheumatology, Department of Internal Medicine, Dongguk University Ilsan Hospital, Dongguk University College of Medicine, Goyang 10326, Korea;
| | - Yun Jeong Lim
- Division of Gastroenterology, Department of Internal Medicine, Dongguk University Ilsan Hospital, Dongguk University College of Medicine, Goyang 10326, Korea;
- Correspondence: ; Tel.: +82-31-961-7133
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8
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Stiller J, Defarges AM, Brisson BA, Bersenas AME, Pearl DL. Feasibility, complications, and quality of visualization using video capsule endoscopy in 40 dogs with overt or questionable gastrointestinal bleeding. J Vet Intern Med 2021; 35:1743-1753. [PMID: 33993552 PMCID: PMC8295713 DOI: 10.1111/jvim.16153] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Revised: 04/25/2021] [Accepted: 04/27/2021] [Indexed: 12/15/2022] Open
Abstract
Background Prospective studies describing video capsule endoscopy (VCE), its feasibility, and complications in dogs are limited. Objective To assess VCE, quality of visualization, complications, and risk factors for incomplete studies in dogs with overt or questionable gastrointestinal bleeding (GIB). Animals Forty dogs with overt or questionable GIB. Methods Prospective, multicenter, interventional study. From August 2017 to March 2020, dogs were examined by VCE (ALICAM) because of overt or questionable GIB. Reported outcomes included diagnostic results of VCE study, quality of visualization, and complications. Risk factors for incomplete studies were evaluated using logistic regression. Results In total, 40 dogs (13 overt, 27 questionable GIB) were included. The capsules were administered PO in 29 and endoscopically in 11 dogs (6 duodenum, 5 stomach). One capsule was not retrieved. In 24 of 39 recordings, bleeding lesions were identified (10 overt GIB, 14 questionable GIB). Overall, the quality of visualization was poor to limited in the stomach and colon, and adequate to good in the small intestine. The most common complication was an incomplete study in 15/39 studies, particularly after oral administration (13/28). Risk factors for incomplete study after oral administration included administration of simethicone or opioids, chronic enteropathy, and capsule gastric transit time >6 hours. Conclusions and Clinical Importance Video capsule endoscopy can be used to diagnose a variety of lesions causing bleeding in the gastrointestinal tract of dogs with questionable GIB. Incomplete studies are the most common complications in dogs after oral administration of capsules.
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Affiliation(s)
- Jenny Stiller
- Department of Clinical Studies, Ontario Veterinary College, University of Guelph, Guelph, Ontario, Canada.,Small Animal Clinic, College of Veterinary Medicine, University of Leipzig, Leipzig, Saxony, Germany
| | - Alice M Defarges
- Department of Clinical Studies, Ontario Veterinary College, University of Guelph, Guelph, Ontario, Canada
| | - Brigitte A Brisson
- Department of Clinical Studies, Ontario Veterinary College, University of Guelph, Guelph, Ontario, Canada
| | - Alexa M E Bersenas
- Department of Clinical Studies, Ontario Veterinary College, University of Guelph, Guelph, Ontario, Canada
| | - David L Pearl
- Department of Population Medicine, Ontario Veterinary College, University of Guelph, Guelph, Ontario, Canada
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Double-headed small-bowel capsule endoscopy: Real-world experience from a multi-centre British study. Dig Liver Dis 2021; 53:461-466. [PMID: 33574013 DOI: 10.1016/j.dld.2021.01.017] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/06/2020] [Revised: 01/10/2021] [Accepted: 01/20/2021] [Indexed: 12/11/2022]
Abstract
INTRODUCTION Capsule endoscopy (CE) is well established the investigation of small-bowel (SB) pathology. We compared the use of double-headed (DH) capsules, to conventional single-headed (SH), in a real-world patient cohort in the first multicentre British study. METHODS Over 9 months, patients referred for routine SBCE at 4 tertiary referral centres in the UK underwent DH CE instead of conventional SH using MiroCamⓇ MC2000 as per local protocols. One head (L/R) was chosen at random and reported by an expert reviewer. The DH recordings, anonymised and randomised, reported by another expert or re-read after a 4-week interval. For each CE, numbers and types of findings and overall conclusion/diagnosis were compared between SH and DH examinations. RESULTS 211 CEs were performed. 7 failed to reach the SB; 204 analysed. Indications were: SB bleeding (n = 94); ?SB inflammation or reassessment of known inflammatory bowel disease (IBD) (n = 84); ?SB neoplasia including suspicious radiological imaging (n = 15); and, others e.g. ?celiac disease (n = 11). For SB bleeding: 27/94 (28.7%) examinations reported differences between SH and DH readings. In 17 (18.1%) the findings were clinically significant. SH CE missed angiectasias (5 pts), SB inflammation (7 pts), oesophagitis (2 pts) and SB masses (2 pts). In 1 patient, the extent of angiectasias seen was greater on the DH reading. For IBD: findings differed in 30/84 (35.7%) of CEs; 11 (13.1%) were clinically significant. In 5, signs of active inflammation were missed by the SH reading. In 6, assessment of extent/severity differed. For?SB neoplasia findings differed in 2/15 (13.3%) of examinations. Both were clinically significant. For others: 1/11 (9.1%) examinations differed; however, not deemed clinically significant. Overall, use of DH CE impacted the diagnosis in 30/204 (14.7%). CONCLUSIONS The use of DH CE provides more information with the potential to change clinical diagnosis and therefore management. Therefore, the routine adoption of DH CE in SB assessment should be considered.
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Zammit SC, Elli L, Scaramella L, Sanders DS, Tontini GE, Sidhu R. Small bowel capsule endoscopy in refractory celiac disease: a luxury or a necessity? Ann Gastroenterol 2021; 34:188-195. [PMID: 33654358 PMCID: PMC7903573 DOI: 10.20524/aog.2021.0586] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/20/2020] [Accepted: 10/27/2020] [Indexed: 12/11/2022] Open
Abstract
Background Small bowel capsule endoscopy (SBCE) has an established role in the management of refractory celiac disease (RCD) for the detection of complications. The aim of this study was to define the role of SBCE in the management of patients with RCD. Method Patients with histologically confirmed RCD who underwent successive SBCEs were recruited retrospectively from 2 tertiary centers. Results Sixty patients with RCD were included. The percentage extent of the affected small bowel (SB) mucosa improved on repeating a second SBCE in 26 patients (49.1%) (median 27.6% vs. 18.1%, P=0.007). Patients with RCD type II had more extensive disease than those with RCD type I on first (41.4% vs. 19.2%, P=0.004) and second (29.8% vs. 12.0%, P=0.016) SBCE. Patients with RCD type I tended to show a greater improvement in percentage of abnormal SB involved on repeat SBCE compared to those with RCD type II (P=0.049). Nine patients (15%) had RCD-related complications. Five patients developed ulcerative jejunoileitis, 3 patients developed enteropathy-associated T-cell lymphoma, and 1 patient developed cutaneous T-cell lymphoma. Conclusions SBCE can be a useful tool for monitoring the effects of treatment, primarily following its initiation. Patients with RCD type II have more extensive SB disease, equating to a more aggressive disease pattern.
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Affiliation(s)
- Stefania Chetcuti Zammit
- Gastroenterology Department, Sheffield Teaching Hospitals, United Kingdom (Stefania Chetcuti Zammit, David S. Sanders, Reena Sidhu)
| | - Luca Elli
- Centre for Prevention and Diagnosis of Coeliac Disease, Gastroenterology and Endoscopy Unit, Department of Pathophysiology and Transplantation, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, University of Milan, Italy (Luca Elli, Lucia Scaramella, Gian Eugenio Tontini)
| | - Lucia Scaramella
- Centre for Prevention and Diagnosis of Coeliac Disease, Gastroenterology and Endoscopy Unit, Department of Pathophysiology and Transplantation, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, University of Milan, Italy (Luca Elli, Lucia Scaramella, Gian Eugenio Tontini)
| | - David S Sanders
- Gastroenterology Department, Sheffield Teaching Hospitals, United Kingdom (Stefania Chetcuti Zammit, David S. Sanders, Reena Sidhu)
| | - Gian Eugenio Tontini
- Centre for Prevention and Diagnosis of Coeliac Disease, Gastroenterology and Endoscopy Unit, Department of Pathophysiology and Transplantation, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, University of Milan, Italy (Luca Elli, Lucia Scaramella, Gian Eugenio Tontini)
| | - Reena Sidhu
- Gastroenterology Department, Sheffield Teaching Hospitals, United Kingdom (Stefania Chetcuti Zammit, David S. Sanders, Reena Sidhu)
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11
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Dray X, Iakovidis D, Houdeville C, Jover R, Diamantis D, Histace A, Koulaouzidis A. Artificial intelligence in small bowel capsule endoscopy - current status, challenges and future promise. J Gastroenterol Hepatol 2021; 36:12-19. [PMID: 33448511 DOI: 10.1111/jgh.15341] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Revised: 11/05/2020] [Accepted: 11/05/2020] [Indexed: 12/24/2022]
Abstract
Neural network-based solutions are under development to alleviate physicians from the tedious task of small-bowel capsule endoscopy reviewing. Computer-assisted detection is a critical step, aiming to reduce reading times while maintaining accuracy. Weakly supervised solutions have shown promising results; however, video-level evaluations are scarce, and no prospective studies have been conducted yet. Automated characterization (in terms of diagnosis and pertinence) by supervised machine learning solutions is the next step. It relies on large, thoroughly labeled databases, for which preliminary "ground truth" definitions by experts are of tremendous importance. Other developments are under ways, to assist physicians in localizing anatomical landmarks and findings in the small bowel, in measuring lesions, and in rating bowel cleanliness. It is still questioned whether artificial intelligence will enter the market with proprietary, built-in or plug-in software, or with a universal cloud-based service, and how it will be accepted by physicians and patients.
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Affiliation(s)
- Xavier Dray
- Sorbonne Université, Centre d'Endoscopie Digestive, Hôpital Saint-Antoine, APHP, Paris, France.,ETIS UMR 8051 (CY Paris Cergy University, ENSEA, CNRS), Cergy, France
| | - Dimitris Iakovidis
- Department of Computer Science and Biomedical Informatics, University of Thessaly, Lamia, Greece
| | - Charles Houdeville
- Sorbonne Université, Centre d'Endoscopie Digestive, Hôpital Saint-Antoine, APHP, Paris, France
| | - Rodrigo Jover
- Servicio de Medicina Digestiva, Hospital General Universitario de Alicante, Instituto de Investigación Biomédica ISABIAL, Alicante, Spain
| | - Dimitris Diamantis
- Department of Computer Science and Biomedical Informatics, University of Thessaly, Lamia, Greece
| | - Aymeric Histace
- ETIS UMR 8051 (CY Paris Cergy University, ENSEA, CNRS), Cergy, France
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Laiz P, Vitrià J, Wenzek H, Malagelada C, Azpiroz F, Seguí S. WCE polyp detection with triplet based embeddings. Comput Med Imaging Graph 2020; 86:101794. [PMID: 33130417 DOI: 10.1016/j.compmedimag.2020.101794] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Revised: 09/17/2020] [Accepted: 09/18/2020] [Indexed: 12/20/2022]
Abstract
Wireless capsule endoscopy is a medical procedure used to visualize the entire gastrointestinal tract and to diagnose intestinal conditions, such as polyps or bleeding. Current analyses are performed by manually inspecting nearly each one of the frames of the video, a tedious and error-prone task. Automatic image analysis methods can be used to reduce the time needed for physicians to evaluate a capsule endoscopy video. However these methods are still in a research phase. In this paper we focus on computer-aided polyp detection in capsule endoscopy images. This is a challenging problem because of the diversity of polyp appearance, the imbalanced dataset structure and the scarcity of data. We have developed a new polyp computer-aided decision system that combines a deep convolutional neural network and metric learning. The key point of the method is the use of the Triplet Loss function with the aim of improving feature extraction from the images when having small dataset. The Triplet Loss function allows to train robust detectors by forcing images from the same category to be represented by similar embedding vectors while ensuring that images from different categories are represented by dissimilar vectors. Empirical results show a meaningful increase of AUC values compared to state-of-the-art methods. A good performance is not the only requirement when considering the adoption of this technology to clinical practice. Trust and explainability of decisions are as important as performance. With this purpose, we also provide a method to generate visual explanations of the outcome of our polyp detector. These explanations can be used to build a physician's trust in the system and also to convey information about the inner working of the method to the designer for debugging purposes.
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Affiliation(s)
- Pablo Laiz
- Department of Mathematics and Computer Science, Universitat de Barcelona, Barcelona, Spain.
| | - Jordi Vitrià
- Department of Mathematics and Computer Science, Universitat de Barcelona, Barcelona, Spain
| | | | - Carolina Malagelada
- Digestive System Research Unit, University Hospital Vall d'Hebron, Barcelona, Spain
| | - Fernando Azpiroz
- Digestive System Research Unit, University Hospital Vall d'Hebron, Barcelona, Spain
| | - Santi Seguí
- Department of Mathematics and Computer Science, Universitat de Barcelona, Barcelona, Spain
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Blanco-Velasco G, Zamarripa-Mottú RA, Solórzano-Pineda OM, Mascarenhas-Saraiva M, Blancas-Valencia JM, Hernández-Mondragón OV. Comparison in the Diagnostic Yield between "Pillcam SB3" Capsule Endoscopy and "OMOM Smart Capsule 2" in Small Bowel Bleeding: A Randomized Head-to-Head Study. Dig Dis 2020; 39:211-216. [PMID: 33011721 DOI: 10.1159/000511958] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Accepted: 10/02/2020] [Indexed: 02/02/2023]
Abstract
INTRODUCTION Capsule endoscopy (CE) is the first-line tool for diagnosis of small bowel bleeding. There are some studies that have compared different types of CE. OMOM CE is one of the newest in the market and has not been compared with other types of CE. The objective of this study was to compare the diagnostic yield of the Pillcam SB3 and OMOM CE in small bowel bleeding. MATERIALS AND METHODS This is a prospective, comparative, randomized, and blinded study. Patients with suspected small bowel bleeding were included. All the patients were given both types of CE in random order. Diagnostic yield and functionality between the 2 types of CE were analyzed. RESULTS We included 44 patients, 54.5% were female with a median age of 63.5 years. Battery time was significantly longer with SB3 (816.5 vs. 700.5 min, p < 0.001), and the download time was shorter with OMOM (33 vs. 132 min, p < 0.001). Both CEs presented 1 failure. The cause of the bleeding was identified in 39 SB3 (88.6%) and in 34 OMOM CE (77.3%) (p = 0.256). P2 lesions were observed in 32 SB3 (72.7%) and in 29 OMOM CE (65.9%) (p = 0.784). The agreement between both CEs for P2 lesions was moderate (κ = 0.628). CONCLUSIONS Pillcam SB3 and OMOM devices are safe procedures and have a similar diagnostic yield. Significant differences were observed in the battery life and download time with both CEs.
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Affiliation(s)
- Gerardo Blanco-Velasco
- Division of Endoscopy, Specialties Hospital, National Medical Center Century XXI, Mexico City, Mexico,
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14
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Chetcuti Zammit S, Bull LA, Sanders DS, Galvin J, Dervilis N, Sidhu R, Worden K. Towards the Probabilistic Analysis of Small Bowel Capsule Endoscopy Features to Predict Severity of Duodenal Histology in Patients with Villous Atrophy. J Med Syst 2020; 44:195. [PMID: 33005996 PMCID: PMC7529615 DOI: 10.1007/s10916-020-01657-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2019] [Accepted: 09/16/2020] [Indexed: 12/17/2022]
Abstract
Small bowel capsule endoscopy (SBCE) can be complementary to histological assessment of celiac disease (CD) and serology negative villous atrophy (SNVA). Determining the severity of disease on SBCE using statistical machine learning methods can be useful in the follow up of patients. SBCE can play an additional role in differentiating between CD and SNVA. De-identified SBCEs of patients with CD and SNVA were included. Probabilistic analysis of features on SBCE were used to predict severity of duodenal histology and to distinguish between CD and SNVA. Patients with higher Marsh scores were more likely to have a positive SBCE and a continuous distribution of macroscopic features of disease than those with lower Marsh scores. The same pattern was also true for patients with CD when compared to patients with SNVA. The validation accuracy when predicting the severity of Marsh scores and when distinguishing between CD and SNVA was 69.1% in both cases. When the proportions of each SBCE class group within the dataset were included in the classification model, to distinguish between the two pathologies, the validation accuracy increased to 75.3%. The findings of this work suggest that by using features of CD and SNVA on SBCE, predictions can be made of the type of pathology and the severity of disease.
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Affiliation(s)
- Stefania Chetcuti Zammit
- Academic Unit, Department of Gastroenterology, Sheffield Teaching Hospitals, Sheffield, UK.
- Gastroenterology Department, Royal Hallamshire Hospital, Glossop Road, Sheffield, S102JF, UK.
| | - Lawrence A Bull
- Dynamics Research Group, Department of Mechanical Engineering, University of Sheffield, Sheffield, UK
| | - David S Sanders
- Academic Unit, Department of Gastroenterology, Sheffield Teaching Hospitals, Sheffield, UK
| | - Jessica Galvin
- Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Nikolaos Dervilis
- Dynamics Research Group, Department of Mechanical Engineering, University of Sheffield, Sheffield, UK
| | - Reena Sidhu
- Academic Unit, Department of Gastroenterology, Sheffield Teaching Hospitals, Sheffield, UK
| | - Keith Worden
- Dynamics Research Group, Department of Mechanical Engineering, University of Sheffield, Sheffield, UK
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15
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What is the role of small bowel capsule endoscopy in established coeliac disease? Clin Res Hepatol Gastroenterol 2020; 44:753-761. [PMID: 31928969 DOI: 10.1016/j.clinre.2019.11.011] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/12/2019] [Revised: 11/22/2019] [Accepted: 11/25/2019] [Indexed: 02/04/2023]
Abstract
INTRODUCTION Patients with established coeliac disease (CD) can present with signs and symptoms requiring small bowel capsule endoscopy (SBCE) to assess for persistent disease beyond the duodenum and to rule out complications. There is paucity of data on extent of disease on SBCE in relation to histology, clinical and serological parameters. The aim of this study was to assess the relationship between symptoms, CD serology and Marsh classification of disease and extent of disease on SBCE in patients with established CD. METHODS Hundred patients with established CD and 200 controls underwent a SBCE. SBCEs were reviewed by expert reviewers. Extent of disease on SBCE, CD findings and small bowel transit were recorded. RESULTS Considering duodenal histology (D2; Marsh 3a or above) as the gold standard for diagnosing CD activity, the sensitivity of SBCE to delineate active disease was 87.2%. The specificity was 89.0%. Age at SBCE (P=0.006), albumin (P=0.004) and haemoglobin (P=0.0001), Marsh score of histology from the duodenal bulb (D1) (P=0.0001) and the second part of the duodenum (P=0.0001), refractory CD (P=0.007) on histology correlated with extent of affected small bowel (SB) mucosa on univariate analysis. On multiple regression analysis, albumin (P=0.036) and Marsh score of histology (D1) (P=0.019), vitamin B12 (P=0.001) and folate levels (P=0.008) were statistically significant. Extent of affected SB mucosa (11.0% vs 1.35%) was greater in patients with complications including those with refractory CD (P=0.008). CONCLUSIONS This is the first study showing correlation between extent of disease and severity of duodenal histology, markers of malabsorption such as folate levels and vitamin B12 and complications of CD.
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Chetcuti Zammit S, McAlindon ME, Sidhu R. Panoramic versus axial small bowel capsule endoscopy in overt obscure gastrointestinal bleeding. Dig Endosc 2020; 32:823. [PMID: 31957073 DOI: 10.1111/den.13629] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Stefania Chetcuti Zammit
- Academic Department of Gastroenterology, Royal Hallamshire Hospital, Sheffield Teaching Hospitals, Sheffield, UK
| | - Mark E McAlindon
- Academic Department of Gastroenterology, Royal Hallamshire Hospital, Sheffield Teaching Hospitals, Sheffield, UK
| | - Reena Sidhu
- Academic Department of Gastroenterology, Royal Hallamshire Hospital, Sheffield Teaching Hospitals, Sheffield, UK
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Branchi F, Ferretti F, Orlando S, Tontini GE, Penagini R, Vecchi M, Elli L. Small-bowel capsule endoscopy in patients with celiac disease, axial versus lateral/panoramic view: Results from a prospective randomized trial. Dig Endosc 2020; 32:778-784. [PMID: 31680344 DOI: 10.1111/den.13575] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/14/2019] [Accepted: 10/31/2019] [Indexed: 02/08/2023]
Abstract
BACKGROUND AND AIM Capsule enteroscopy (CE) is recommended in the management of complicated celiac disease (CD). However, published data are derived from axial-view capsule systems. No data are available on the use of lateral/panoramic view capsules. This study aimed at evaluating the diagnostic yield and efficacy of the lateral/panoramic versus the axial view capsule system in CD. METHODS Consecutive CD patients were enrolled in a prospective monocentric study. Each patient ingested an axial (PillCam SB3) and a lateral/panoramic (CapsoCam Plus) view capsule with a 3-h interval in a randomized order. Two experts blindly evaluated the CE carried out. A third expert reviewed the videos in cases of discordance. RESULTS Twenty-five CD patients were enrolled (four males, age at CE 51.2 ± 16.6 years, age at CD diagnosis 41.7 ± 20.6, years on a gluten-free diet [GFD] 9.6 ± 9.4). Indications at CE were refractory CD in nine cases, non-responsiveness to GFD in 10 and GFD non-compliance in six. A positive finding was evidenced in 15 (60%) and 13 (52%) cases by CapsoCam and PillCam respectively (not significant). Atrophy was detected by both capsules. Considering the percentage of the small-bowel mucosa presenting atrophy signs, mean values were 22% ± 35 and 20% ± 29 for lateral/panoramic and axial systems, respectively (not significant). Compared to duodenal histology, PillCam correctly identified 80% of patients with SB atrophy, whereas CapsoCam identified 73% of cases. CONCLUSIONS Lateral/panoramic view CE is effective in the detection of small-bowel atrophy in CD and presents good sensitivity and specificity when compared to histology.
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Affiliation(s)
- Federica Branchi
- Division of Gastroenterology and Endoscopy, Center for Prevention and Diagnosis of Celiac Disease, Foundation IRCCS Ca' Granda Major Polyclinic Hospital, Milan, Italy.,Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy
| | - Francesca Ferretti
- Division of Gastroenterology and Endoscopy, Center for Prevention and Diagnosis of Celiac Disease, Foundation IRCCS Ca' Granda Major Polyclinic Hospital, Milan, Italy.,Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy
| | - Stefania Orlando
- Division of Gastroenterology and Endoscopy, Center for Prevention and Diagnosis of Celiac Disease, Foundation IRCCS Ca' Granda Major Polyclinic Hospital, Milan, Italy
| | - Gian Eugenio Tontini
- Division of Gastroenterology and Endoscopy, Center for Prevention and Diagnosis of Celiac Disease, Foundation IRCCS Ca' Granda Major Polyclinic Hospital, Milan, Italy.,Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy
| | - Roberto Penagini
- Division of Gastroenterology and Endoscopy, Center for Prevention and Diagnosis of Celiac Disease, Foundation IRCCS Ca' Granda Major Polyclinic Hospital, Milan, Italy.,Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy
| | - Maurizio Vecchi
- Division of Gastroenterology and Endoscopy, Center for Prevention and Diagnosis of Celiac Disease, Foundation IRCCS Ca' Granda Major Polyclinic Hospital, Milan, Italy.,Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy
| | - Luca Elli
- Division of Gastroenterology and Endoscopy, Center for Prevention and Diagnosis of Celiac Disease, Foundation IRCCS Ca' Granda Major Polyclinic Hospital, Milan, Italy.,Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy
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Use of small-bowel capsule endoscopy in cases of equivocal celiac disease. Gastrointest Endosc 2020; 91:1312-1321.e2. [PMID: 31923404 DOI: 10.1016/j.gie.2019.12.044] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Accepted: 12/22/2019] [Indexed: 12/11/2022]
Abstract
BACKGROUND AND AIMS Seronegative villous atrophy (SNVA), raised intraepithelial lymphocytes (IELs), and crypt hyperplasia on duodenal histology can be secondary to celiac disease (CD) or other causes such as medications or infections. Our aims were to assess the role of small-bowel capsule endoscopy (SBCE) in these patients and to ascertain whether findings on SBCE at diagnosis can predict disease outcome. METHODS Patients (n = 177) with SNVA, IELs, ± crypt hyperplasia on duodenal histology were studied. These patients all had an equivocal diagnosis of CD. RESULTS Overall, 56 patients (31.6%) had a positive SBCE. Thirty-three patients (58.9%) had disease affecting the proximal third of the small bowel (SB). The diagnostic yield of SBCE was 40.0% (22 patients), 51.4% (18 patients), 27.0% (10 patients), and 14.0% (7 patients) in patients with an unknown cause for SNVA (SNVA-UO), patients with SNVA who responded to a gluten-free diet (SNVA-CD), patients with a known cause for SNVA, and patients with railed IELs ± crypt hyperplasia, respectively. In SNVA-UO, SBCE at diagnosis was more likely to be positive in patients with persistent SNVA (10, 90.9%) and persistent SNVA with lymphoproliferative features (4, 80.4%) than patients with spontaneous resolution of SNVA (8, 20.5%) (P = .0001). All patients in the SNVA-CD group who eventually developed adverse events had a positive SBCE (P = .022). They also had more extensive SB disease than those without adverse events (50% vs 1% P = .002). More extensive SB disease on SBCE correlated with a higher SNVA-related mortality in patients with SNVA-UO and SNVA-CD (P = .019). Severity of histology did not correlate with mortality (P = .793). CONCLUSIONS A positive SBCE at diagnosis predicts a worse outcome. More importantly, more extensive disease in these patients is associated with poor survival. Targeting patients with extensive disease at diagnosis with more aggressive therapy can help to improve prognosis.
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Chetcuti Zammit S, Sanders DS, Sidhu R. Coeliac disease: older patients have the most extensive small bowel involvement on capsule endoscopy. Eur J Gastroenterol Hepatol 2019; 31:1496-1501. [PMID: 31464789 DOI: 10.1097/meg.0000000000001503] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
OBJECTIVE The relation between symptomatology, serology and findings on small bowel capsule endoscopy (SBCE) in patients with coeliac disease (CD) remains unclear. Clarifying such associations will help to determine whether symptoms and serology can predict severity and extent of disease on SBCE. METHODS Patients with newly diagnosed CD were recruited. Information on SBCE was recorded. Signs and symptoms at presentation, serological markers and histological classification of the disease in the duodenum were noted. RESULTS Sixty patients with newly diagnosed CD (mean age: 44.9 years, SD: ±17.4, 17-76) were included in this study. Older patients (P = 0.025) and patients presenting with iron deficiency anaemia had more extensive small bowel (SB) involvement (25.7% vs. 13.5%; P = 0.026). Those with weight loss were more likely to have SB involvement beyond the duodenum (37.5% vs. 5.8%; P = 0.027). Patients presenting with iron deficiency anaemia (53.5 vs. 42.4 years; P = 0.038) and weight loss (60.5 vs. 42.4 years; P = 0.009) were significantly older at diagnosis. Serum albumin was lower in those patients diagnosed later on in life (Pearson correlation -0.0361; P = 0.007). There was no significant association between anti-tissue transglutaminase antibody (P = 0.396) and extent of affected SB mucosa. Patients with more severe Marsh scores on histology from the duodenal bulb had more extensive SB involvement (P = 0.017). CONCLUSIONS This is the largest study on the use of SBCE in newly diagnosed CD. Older patients are likely to have more extensive disease on SBCE at diagnosis. Symptoms and serology had no impact on the findings on SBCE apart from weight loss and iron deficiency anaemia.
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Abstract
Video capsule endoscopy became a reality in 2001. This device enabled us to directly view the mucosa of the small intestine for the first time. The main indications for the video capsule remain the detection of small intestinal bleeding and iron deficiency anemia, diagnosis and management of Crohn's disease, and detection of tumors. The device is extraordinarily safe and can be used in the very young to the very old. However, there remain several areas of controversy and difficulty. These are covered in this article and include details of indications and contraindications, whether to prepare patients, whether or not to use simethicone and prokinetics. Detection of location of the capsule remains a major engineering challenge. Reading the videos reliably and quickly remains challenging. However, artificial intelligence and machine learning are already on the horizon to provide assistance. New uses for capsule endoscopy promise more accurate diagnosis and hence improved management of acute gastrointestinal bleeding. The colon capsule may eventually help those who refuse conventional colonoscopy, and robotically controlled capsules may be helpful in screening for serious disease in patients with upper abdominal complaints. The advent of the broadening use of video capsule endoscopy is, though it will be controversial, embraced by some and derided by others; such is the nature of technological development. In the long run, if the use of the video capsule, based on sound evidence-based studies, can be shown to improve the care of our patients and reduce the cost of health care, its use will continue to expand.
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McGoran JJ, McAlindon ME, Iyer PG, Seibel EJ, Haidry R, Lovat LB, Sami SS. Miniature gastrointestinal endoscopy: Now and the future. World J Gastroenterol 2019; 25:4051-4060. [PMID: 31435163 PMCID: PMC6700702 DOI: 10.3748/wjg.v25.i30.4051] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Revised: 06/22/2019] [Accepted: 07/03/2019] [Indexed: 02/06/2023] Open
Abstract
Since its original application, gastrointestinal (GI) endoscopy has undergone many innovative transformations aimed at expanding the scope, safety, accuracy, acceptability and cost-effectiveness of this area of clinical practice. One method of achieving this has been to reduce the caliber of endoscopic devices. We propose the collective term “Miniature GI Endoscopy”. In this Opinion Review, the innovations in this field are explored and discussed. The progress and clinical use of the three main areas of miniature GI endoscopy (ultrathin endoscopy, wireless endoscopy and scanning fiber endoscopy) are described. The opportunities presented by these technologies are set out in a clinical context, as are their current limitations. Many of the positive aspects of miniature endoscopy are clear, in that smaller devices provide access to potentially all of the alimentary canal, while conferring high patient acceptability. This must be balanced with the costs of new technologies and recognition of device specific challenges. Perspectives on future application are also considered and the efforts being made to bring new innovations to a clinical platform are outlined. Current devices demonstrate that miniature GI endoscopy has a valuable place in investigation of symptoms, therapeutic intervention and screening. Newer technologies give promise that the potential for enhancing the investigation and management of GI complaints is significant.
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Affiliation(s)
- John J McGoran
- Digestive Diseases Centre, Leicester Royal Infirmary, Leicester LE1 5WW, United Kingdom
| | - Mark E McAlindon
- Department of Gastroenterology, Royal Hallamshire Hospital, Sheffield S10 2JF, United Kingdom
| | - Prasad G Iyer
- Division of Gastroenterology and Hepatology, Mayo Clinic Rochester, MN 55905, United States
| | - Eric J Seibel
- Department of Mechanical Engineering, University of Washington, 4000 Mason St, Seattle, WA 98195, United States
| | - Rehan Haidry
- Division of Surgery and Interventional Science, University College London, London WC1E 6BT, United Kingdom
| | - Laurence B Lovat
- Division of Surgery and Interventional Science, University College London, London WC1E 6BT, United Kingdom
| | - Sarmed S Sami
- Division of Surgery and Interventional Science, University College London, London WC1E 6BT, United Kingdom
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Mabry K, Hill T, Marks SL, Hardy BT. Use of video capsule endoscopy to identify gastrointestinal lesions in dogs with microcytosis or gastrointestinal hemorrhage. J Vet Intern Med 2019; 33:1964-1969. [PMID: 31381197 PMCID: PMC6766531 DOI: 10.1111/jvim.15584] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2018] [Accepted: 07/22/2019] [Indexed: 12/15/2022] Open
Abstract
Background Video capsule endoscopy (VCE) is a noninvasive imaging modality that can identify mucosal lesions not detected with traditional endoscopy or abdominal sonography. In people, VCE is used in diagnostic and management protocols of various gastrointestinal (GI) disorders, particularly in GI bleeding of obscure origin or unexplained iron deficiency anemia (IDA). Objective To evaluate the utility of VCE in the identification of mucosal lesions in dogs with evidence of GI hemorrhage. Animals Sixteen client‐owned dogs that underwent VCE. Methods Retrospective case‐control study. Medical records were reviewed to include dogs with microcytosis, low normal mean corpuscular volume, or clinical GI bleeding that received VCE. Results Median age of dogs was 8.7 years (range, 8 months to 15 years) with a median weight of 21.7 kg (range, 6.9‐62.5 kg). Abdominal ultrasound (16), abdominal radiography (4), and abdominal CT (1) did not identify a cause for GI blood loss. Gastric mucosal lesions were identified by VCE in 15 of 16 dogs and small intestinal lesions in 12 of 14 dogs, with 2 capsules remaining in the stomach. Endoscopy was performed in 2 dogs before VCE; 1 dog had additional small intestinal lesions identified through the use of VCE. Conclusions and Clinical Importance Video capsule endoscopy is a minimally invasive diagnostic tool that can identify GI lesions in dogs presenting with microcytosis with or without GI hemorrhage when ultrasonography is inconclusive; however, the majority of lesions identified would have been apparent with conventional endoscopy.
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Affiliation(s)
- Kasey Mabry
- Department of Small Animal Medicine and Surgery, College of Veterinary Medicine, The University of Georgia, Athens, Georgia
| | - Tracy Hill
- Department of Small Animal Medicine and Surgery, College of Veterinary Medicine, The University of Georgia, Athens, Georgia
| | - Stanley L Marks
- Department of Medicine and Epidemiology, School of Veterinary Medicine, University of California-Davis, Davis, California
| | - Brian T Hardy
- Department of Medicine and Epidemiology, School of Veterinary Medicine, University of California-Davis, Davis, California
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Chetcuti Zammit S, Sanders DS, McAlindon ME, Sidhu R. Optimising the use of small bowel endoscopy: a practical guide. Frontline Gastroenterol 2019; 10:171-176. [PMID: 31205659 PMCID: PMC6540267 DOI: 10.1136/flgastro-2018-101077] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/17/2018] [Revised: 11/26/2018] [Accepted: 11/27/2018] [Indexed: 02/04/2023] Open
Abstract
The wireless nature of capsule endoscopy offers patients the least invasive option for small bowel investigation. It is now the first-line test for suspected small bowel bleeding. Furthermore meta-analyses suggest that capsule endoscopy outperforms small bowel imaging for small bowel tumours and is equivalent to CT enterography and magnetic resonance enterography for small bowel Crohn's disease. A positive capsule endoscopy lends a higher diagnostic yield with device-assisted enteroscopy. Device-assisted enteroscopy allows for the application of therapeutics to bleeding points, obtain histology of lesions seen, tattoo lesions for surgical resection or undertake polypectomy. It is however mainly reserved for therapeutics due to its invasive nature. Device-assisted enteroscopy has largely replaced intraoperative enteroscopy. The use of both modalities is discussed in detail for each indication. Current available guidelines are compared to provide a concise review.
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Affiliation(s)
- Stefania Chetcuti Zammit
- Academic Department of Gastroenterology, Royal Hallamshire Hospital, Sheffield Teaching Hospitals, Sheffield, UK
| | - David S Sanders
- Academic Department of Gastroenterology, Royal Hallamshire Hospital, Sheffield Teaching Hospitals, Sheffield, UK
| | - Mark E McAlindon
- Academic Department of Gastroenterology, Royal Hallamshire Hospital, Sheffield Teaching Hospitals, Sheffield, UK
| | - Reena Sidhu
- Academic Department of Gastroenterology, Royal Hallamshire Hospital, Sheffield Teaching Hospitals, Sheffield, UK
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