Detection of Colorectal Adenoma by Optical Enhancement Technology vs. High-Definition Colonoscopy
Detection of Colorectal Adenoma by Optical Enhancement Technology vs. High-Definition Colonoscopy: A Randomized Trial
Panoramica dello studio
Stato
Condizioni
Descrizione dettagliata
Colorectal cancer is the third most common cancer in the world.Colonoscopy is the gold standard screening test for colorectal cancer.There are also emerging data to support that screening by colonoscopy reduces both the incidence and mortality of colorectal cancer.However,Colonoscopy could still miss colorectal adenomas and even cancer.The miss rate for colonic adenomas was reported to be ranging from 15 to 32% in tandem colonoscopy studies.The reasons for the miss rate may be technical(insufficient during excessively fast instrument withdrawal),but may also be the imaging method.Smaller lesions ,particularly flat ones ,may be missed as a result of their subtle appearance and limited contrast in relation to the surrounding mucosa.
Some image-enhanced modules were developed with an aim to improve colorectal polyp or adenoma detection.The widely available modules is the narrow band imaging(NBI).However,most studies failed to demonstrate any superiority of NBI system over white light colonoscopy in detecting colonic polyps.NBI provides dimmer images of the colonic mucosa ,which may limit its performance on polyp and adenoma detection.
Like NBI,OE technology is image-enhanced module,providing a more intense look at the vascular pattern morphology.Besides,OE technology provides an much brighter image compared to NBI.This may possibly increase polyp detection by enhancing visibility of the colonic mucosa with brighter image.The current study aims to tested whether OE technology would improve adenoma detection when compared with high-definition colonoscopy.
Tipo di studio
Iscrizione (Anticipato)
Fase
- Non applicabile
Contatti e Sedi
Luoghi di studio
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Shandong
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Jinan, Shandong, Cina, 250012
- Department of Gastroenterology, Qilu Hospital, Shandong University
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Criteri di partecipazione
Criteri di ammissibilità
Età idonea allo studio
Accetta volontari sani
Sessi ammissibili allo studio
Descrizione
Inclusion Criteria:
- Patients were selected if they presented for diagnostic colonoscopy for a variety of indications(eg positive fecal occult blood test, abdominal pain, diarrhoea,post-polypectomy surveillance).
Exclusion Criteria:
- Patients with prior resection of the proximal colon, advanced colonic cancer, inflammatory bowel disease, or polyposis syndrome.
- The cecum could not be intubated.
- Inadequate bowel preparation (Aronchick Bowel Preparation Scale score poor or inadequate).
- Biopsies were not available.
- Unable to provide informed consent.
Piano di studio
Come è strutturato lo studio?
Dettagli di progettazione
- Scopo principale: Prevenzione
- Assegnazione: Randomizzato
- Modello interventistico: Assegnazione di gruppo singolo
- Mascheramento: Separare
Armi e interventi
Gruppo di partecipanti / Arm |
Intervento / Trattamento |
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Comparatore attivo: Group A
white light was used for both insertion and withdrawal of the colonoscope
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Sperimentale: Group B
Insertion to cecum was performed under white light and once the cecum was reached,the OE mode was swithed on during withdrawal of endoscope for complete colonic examination
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Cosa sta misurando lo studio?
Misure di risultato primarie
Misura del risultato |
Lasso di tempo |
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adenoma detection rate
Lasso di tempo: 6 months
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6 months
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Collaboratori e investigatori
Sponsor
Investigatori
- Direttore dello studio: Yanqing Li, MD, PhD, Department of Gastroenterology, Qilu Hospital, Shandong University, Jinan, Shandong Province, China
Pubblicazioni e link utili
Pubblicazioni generali
- Adler A, Pohl H, Papanikolaou IS, Abou-Rebyeh H, Schachschal G, Veltzke-Schlieker W, Khalifa AC, Setka E, Koch M, Wiedenmann B, Rosch T. A prospective randomised study on narrow-band imaging versus conventional colonoscopy for adenoma detection: does narrow-band imaging induce a learning effect? Gut. 2008 Jan;57(1):59-64. doi: 10.1136/gut.2007.123539. Epub 2007 Aug 6.
- Aminalai A, Rosch T, Aschenbeck J, Mayr M, Drossel R, Schroder A, Scheel M, Treytnar D, Gauger U, Stange G, Simon F, Adler A. Live image processing does not increase adenoma detection rate during colonoscopy: a randomized comparison between FICE and conventional imaging (Berlin Colonoscopy Project 5, BECOP-5). Am J Gastroenterol. 2010 Nov;105(11):2383-8. doi: 10.1038/ajg.2010.273. Epub 2010 Jul 13.
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Inizio studio
Completamento primario (Anticipato)
Completamento dello studio (Anticipato)
Date di iscrizione allo studio
Primo inviato
Primo inviato che soddisfa i criteri di controllo qualità
Primo Inserito (Stima)
Aggiornamenti dei record di studio
Ultimo aggiornamento pubblicato (Stima)
Ultimo aggiornamento inviato che soddisfa i criteri QC
Ultimo verificato
Maggiori informazioni
Termini relativi a questo studio
Termini MeSH pertinenti aggiuntivi
Altri numeri di identificazione dello studio
- 2016SDU-QILU-11
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