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Okagawa Y, Sumiyoshi T, Hanada K, Hirokawa S, Tomita Y, Yoshida M, Minagawa T, Morita K, Yane K, Ihara H, Hirayama M, Kondo H. Is annual screening by fecal immunochemical test necessary after a recent colonoscopy? DEN OPEN 2025; 5:e385. [PMID: 38770399 PMCID: PMC11103454 DOI: 10.1002/deo2.385] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/08/2024] [Revised: 04/22/2024] [Accepted: 04/29/2024] [Indexed: 05/22/2024]
Abstract
Objective The population-based colorectal cancer screening guidelines in Japan recommend an annual fecal immunochemical test (FIT). However, there is no consensus on the need for annual FIT screening for patients who recently performed a total colonoscopy (TCS). Therefore, we evaluated the repeated TCS results for patients with positive FIT after a recent TCS to assess the necessity of an annual FIT. Methods We reviewed patients with positive FIT in opportunistic screening from April 2017 to March 2022. The patients were divided into two groups: those who had undergone TCS within the previous 5 years (previous TCS group) and those who had not (non-previous TCS group). We compared the detection rates of advanced neoplasia and colorectal cancer between the two groups. Results Of 671 patients, 151 had received TCS within 5 years and 520 had not. The detection rates of advanced neoplasia in the previous TCS and non-previous TCS groups were 4.6% and 12.1%, respectively (p < 0.01), and the colorectal cancer detection rates were 0.7% and 1.5%, respectively (no significant difference). The adenoma detection rates were 33.8% in the previous TCS group and 40.0% in the non-previous TCS group (no significant difference). Conclusions Only a few patients were diagnosed with advanced neoplasia among the patients with FIT positive after a recent TCS. For patients with adenomatous lesions on previous TCS, repeated TCS should be performed according to the surveillance program without an annual FIT. The need for an annual FIT for patients without adenomatous lesions on previous TCS should be prospectively assessed in the future.
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Affiliation(s)
- Yutaka Okagawa
- Department of GastroenterologyTonan HospitalHokkaidoJapan
| | | | - Kota Hanada
- Department of GastroenterologyTonan HospitalHokkaidoJapan
| | - Sota Hirokawa
- Department of GastroenterologyTonan HospitalHokkaidoJapan
| | - Yusuke Tomita
- Department of GastroenterologyTonan HospitalHokkaidoJapan
| | | | | | - Kohtaro Morita
- Department of GastroenterologyTonan HospitalHokkaidoJapan
| | - Kei Yane
- Department of GastroenterologyTonan HospitalHokkaidoJapan
| | - Hideyuki Ihara
- Department of GastroenterologyTonan HospitalHokkaidoJapan
| | | | - Hitoshi Kondo
- Department of GastroenterologyTonan HospitalHokkaidoJapan
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Lee DS, Ji JS, Gweon TG, Seo M, Choi H. Efficacy of colonoscopic re-examination across the entire colon: a randomized controlled trial. Surg Endosc 2024:10.1007/s00464-024-11298-5. [PMID: 39327294 DOI: 10.1007/s00464-024-11298-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2024] [Accepted: 09/14/2024] [Indexed: 09/28/2024]
Abstract
BACKGROUND In standard colonoscopic examinations, some polyps may be missed during the withdrawal phase. Re-examination of the right colon can improve the adenoma detection rate (ADR). However, the effectiveness of applying this re-examination strategy to the entire colon remains unknown. We investigated whether re-examination could increase the detection rate of polyps and adenomas throughout the colon. METHODS A randomized, controlled, single-center trial (NCT03268200) was conducted in a university hospital. Patients aged 45-75 years were randomly assigned to either the study or control group. For patients in the control group, observation and polypectomy were performed once using the standard colonoscopy method. For patients in the study group, polypectomy was repeated twice during the withdrawal phase after the initial insertion of the colonoscope. These examinations were performed in the right transverse and left colons. The primary endpoints were the polyp detection rate (PDR) and ADR, defined as the proportion of patients with ≥ 1 polyp and ≥ 1 adenoma, respectively. RESULTS Overall, 406 patients were enrolled (study group, n = 210; control group, n = 196) and analyzed. Generally, PDRs and ADRs were similar between the study (withdrawal 1 + 2) and control groups (withdrawal 1), except for the right colon. However, the second withdrawal review increased number of polyps and adenomas in the overall, right, mid, and left colon, respectively. CONCLUSION The results of this trial indicated that re-examination of the entire colon during colonoscopy could be beneficial for detecting concealed polyps in patients at risk of interval cancer.
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Affiliation(s)
- Dong Seok Lee
- Division of Gastroenterology, Department of Internal Medicine, Yeouido St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Jeong-Seon Ji
- Division of Gastroenterology, Department of Internal Medicine, Incheon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, 56 Dongsu-Ro, Bupyeong-Gu, Incheon, Seoul, 21431, Republic of Korea.
| | - Tae-Geun Gweon
- Division of Gastroenterology, Department of Internal Medicine, Bucheon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Myeongsook Seo
- Department of Gastroenterology, Gangneung Asan Hospital, University of Ulsan College of Medicine, Gangneung, Gangwon-Do, Republic of Korea
| | - Hwang Choi
- Division of Gastroenterology, Department of Internal Medicine, Incheon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, 56 Dongsu-Ro, Bupyeong-Gu, Incheon, Seoul, 21431, Republic of Korea
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Oh CK, Cho YW, Jung J, Lee HY, Kim JB, Cho YS. Comparison of cold snare endoscopic mucosal resection and hot snare endoscopic mucosal resection for small colorectal polyps: a randomized controlled trial. Sci Rep 2024; 14:20335. [PMID: 39223224 PMCID: PMC11369165 DOI: 10.1038/s41598-024-71067-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2024] [Accepted: 08/23/2024] [Indexed: 09/04/2024] Open
Abstract
Incomplete resection rates vary among endoscopists performing cold snare polypectomy. Cold snare endoscopic mucosal resection (CS-EMR) is the technique of cold resection after submucosal injection to reduce incomplete resection. This study aimed to evaluate the efficacy and safety of CS-EMR for small colorectal polyps compared to hot snare endoscopic mucosal resection (HS-EMR). Preplanned sample size required 70 polyps to CS-EMR group or HS-EMR group, respectively. Patients with polyps sized 6-9 mm were randomly allocated to either the CS-EMR or the HS-EMR group. The primary outcome was residual or recurrent adenoma (RAA) rate. A total of 70 and 68 polyps were resected using CS-EMR and HS-EMR, respectively. In the intention-to-treat population, the RAA rate was 0% in the CS-EMR group and 1.5% in the HS-EMR group (risk difference [RD], - 1.47; 95% confidence interval [CI] - 4.34 to 1.39). En bloc resection rate was 98.6% and 98.5% (RD, - 0.04; 95% CI - 4.12 to 4.02); the R0 resection rate was 55.7% and 82.4% (RD, - 27.80; 95% CI - 42.50 to - 13.10). The total procedure time was 172 s (IQR, 158-189) in the CS-EMR group and 186 s (IQR, 147-216) in the HS-EMR group (median difference, - 14; 95% CI - 32 to 2). Delayed bleeding was 2.9% vs 1.5% (RD, 1.37; 95% CI - 3.47 to 6.21) in both groups, respectively. CS-EMR was non-inferior to HS-EMR for the treatment of small colorectal polyps. CS-EMR can be considered one of the standard methods for the removal of colorectal polyps sized 6-9 mm.
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Affiliation(s)
- Chang Kyo Oh
- Division of Gastroenterology, Department of Internal Medicine, Hallym University Kangnam Sacred Heart Hospital, Hallym University of Korea, 1 Singil-ro, Yeoungdeungpo-gu, Seoul, 07441, South Korea.
| | - Young Wook Cho
- Division of Gastroenterology, Department of Internal Medicine, Seoul St. Mary's Hospital, The Catholic University of Korea, Seoul, South Korea
| | - Jiyoon Jung
- Departments of Pathology, Hallym University Kangnam Sacred Heart Hospital, Hallym University of Korea, Seoul, South Korea
| | - Hee Yeon Lee
- Departments of Biostatistics, Soonchunhyang University Hospital Seoul, Soonchunhyang University of Korea, Seoul, South Korea
| | - Jin Bae Kim
- Division of Gastroenterology, Department of Internal Medicine, Hallym University Kangnam Sacred Heart Hospital, Hallym University of Korea, 1 Singil-ro, Yeoungdeungpo-gu, Seoul, 07441, South Korea
| | - Young-Seok Cho
- Division of Gastroenterology, Department of Internal Medicine, Seoul St. Mary's Hospital, The Catholic University of Korea, Seoul, South Korea
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O’Sullivan T, Bourke MJ. Endoscopic Resection of Neoplasia in the Lower GI Tract: A Clinical Algorithm. Visc Med 2024; 40:217-227. [PMID: 39157731 PMCID: PMC11326768 DOI: 10.1159/000539219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2024] [Accepted: 05/03/2024] [Indexed: 08/20/2024] Open
Abstract
Background Colorectal cancer is a highly prevalent malignancy and a significant driver of cancer mortality and health-related expenditure worldwide. Polyp removal reduces the incidence and mortality of colorectal cancer. In 2024, endoscopists have an array of resection modalities at their disposal. Each technique requires a unique skillset and has individual advantages and limitations. Consequently, resection in the colorectum requires an evidence-based algorithm approach that considers these factors. Summary A literature review of endoscopic resection for colonic neoplasia was conducted. Best supporting scientific evidence was summarized for the endoscopic resection of diminutive polyps, large ≥20 mm lesions and polyps containing invasive cancer. Factors including resection modality, complications and lesion selection were explored to inform an algorithm approach to colorectal resection. Key Messages Endoscopic resection in the colorectum is not a one-size-fits-all approach. Detailed understanding of polyp size, location, morphology and predicted histology are critical factors that inform appropriate endoscopic resection practice.
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Affiliation(s)
- Timothy O’Sullivan
- Department of Gastroenterology and Hepatology, Westmead Hospital, Sydney, NSW, Australia
- University of Sydney, Westmead Clinical School, Westmead, NSW, Australia
| | - Michael J. Bourke
- Department of Gastroenterology and Hepatology, Westmead Hospital, Sydney, NSW, Australia
- University of Sydney, Westmead Clinical School, Westmead, NSW, Australia
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Shigeta K, Kishida Y, Hotta K, Imai K, Ito S, Takada K, Sato J, Minamide T, Yamamoto Y, Yoshida M, Maeda Y, Kawata N, Ishiwatari H, Matsubayashi H, Ono H. Clinical outcomes and learning curve of Tip-in endoscopic mucosal resection for 15-25 mm colorectal neoplasms among non-experts. J Gastroenterol Hepatol 2024; 39:1571-1579. [PMID: 38646886 DOI: 10.1111/jgh.16575] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/27/2023] [Revised: 02/16/2024] [Accepted: 03/26/2024] [Indexed: 04/23/2024]
Abstract
BACKGROUND AND AIM Tip-in endoscopic mucosal resection (EMR) has a high en bloc resection rate for large colorectal neoplasms. However, non-experts' performance in Tip-in EMR has not been investigated. We investigated whether Tip-in EMR can be achieved effectively and safely even by non-experts. METHODS This retrospective study included consecutive patients who underwent Tip-in EMR for 15-25 mm colorectal nonpedunculated neoplasms at a Japanese tertiary cancer center between January 2014 and December 2020. Baseline characteristics, treatment outcomes, learning curve of non-experts, and risk factors of failing self-achieved en bloc resection were analyzed. RESULTS A total of 597 lesions were analyzed (438 by experts and 159 by non-experts). The self-achieved en bloc resection (69.8% vs 88.6%, P < 0.001) and self-achieved R0 resection (58.3% vs 76.5%, P < 0.001) rates were significantly lower in non-experts with <10 cases of experience than in experts, but not in non-experts with >10 cases. Adverse event (P = 0.165) and local recurrence (P = 0.892) rates were not significantly different between experts and non-experts. Risk factors of failing self-achieved en bloc resection were non-polypoid morphology (OR 3.4, 95% CI 1.6-7.3, P = 0.001), lesions with an underlying semilunar fold (OR 3.6, 95% CI 1.6-7.3, P < 0.001), positive non-lifting sign (OR 3.1, 95% CI 1.2-8.0, P = 0.023), and non-experts with an experience of ≤10 cases (OR 3.6, 95% CI 2.1-6.3, P < 0.001). CONCLUSION The clinical outcomes of Tip-in EMR for 15-25 mm lesions performed by non-experts were favorable.
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Affiliation(s)
- Kohei Shigeta
- Division of Endoscopy, Shizuoka Cancer Center, Shizuoka, Japan
| | | | - Kinichi Hotta
- Division of Endoscopy, Shizuoka Cancer Center, Shizuoka, Japan
| | - Kenichiro Imai
- Division of Endoscopy, Shizuoka Cancer Center, Shizuoka, Japan
| | - Sayo Ito
- Division of Endoscopy, Shizuoka Cancer Center, Shizuoka, Japan
| | - Kazunori Takada
- Division of Endoscopy, Shizuoka Cancer Center, Shizuoka, Japan
| | - Junya Sato
- Division of Endoscopy, Shizuoka Cancer Center, Shizuoka, Japan
| | | | - Yoichi Yamamoto
- Division of Endoscopy, Shizuoka Cancer Center, Shizuoka, Japan
| | - Masao Yoshida
- Division of Endoscopy, Shizuoka Cancer Center, Shizuoka, Japan
| | - Yuki Maeda
- Division of Endoscopy, Shizuoka Cancer Center, Shizuoka, Japan
| | - Noboru Kawata
- Division of Endoscopy, Shizuoka Cancer Center, Shizuoka, Japan
| | | | | | - Hiroyuki Ono
- Division of Endoscopy, Shizuoka Cancer Center, Shizuoka, Japan
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Wang Y, He C. ENDOANGEL improves detection of missed colorectal adenomas in second colonoscopy: A retrospective study. Medicine (Baltimore) 2024; 103:e38938. [PMID: 38996141 PMCID: PMC11245239 DOI: 10.1097/md.0000000000038938] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Accepted: 06/24/2024] [Indexed: 07/14/2024] Open
Abstract
The ENDOANGEL (EN) computer-assisted detection technique has emerged as a promising tool for enhancing the detection rate of colorectal adenomas during colonoscopies. However, its efficacy in identifying missed adenomas during subsequent colonoscopies remains unclear. Thus, we herein aimed to compare the adenoma miss rate (AMR) between EN-assisted and standard colonoscopies. Data from patients who underwent a second colonoscopy (EN-assisted or standard) within 6 months between September 2022 and May 2023 were analyzed. The EN-assisted group exhibited a significantly higher AMR (24.3% vs 11.9%, P = .005) than the standard group. After adjusting for potential confounders, multivariable analysis revealed that the EN-assisted group had a better ability to detect missed adenomas than the standard group (odds ratio = 2.89; 95% confidence interval = 1.14-7.80, P = .029). These findings suggest that EN-assisted colonoscopy represents a valuable advancement in improving AMR compared with standard colonoscopy. The integration of EN-assisted colonoscopy into routine clinical practice may offer significant benefits to patients requiring hospital resection of lesions following adenoma detection during their first colonoscopy.
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Affiliation(s)
- Yundong Wang
- Department of Gastroenterology, Yijishan Hospital of Wannan Medical College, Wuhu, Anhui, People’s Republic of China
| | - Chiyi He
- Department of Gastroenterology, Yijishan Hospital of Wannan Medical College, Wuhu, Anhui, People’s Republic of China
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Spadaccini M, Troya J, Khalaf K, Facciorusso A, Maselli R, Hann A, Repici A. Artificial Intelligence-assisted colonoscopy and colorectal cancer screening: Where are we going? Dig Liver Dis 2024; 56:1148-1155. [PMID: 38458884 DOI: 10.1016/j.dld.2024.01.203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Revised: 01/22/2024] [Accepted: 01/23/2024] [Indexed: 03/10/2024]
Abstract
Colorectal cancer is a significant global health concern, necessitating effective screening strategies to reduce its incidence and mortality rates. Colonoscopy plays a crucial role in the detection and removal of colorectal neoplastic precursors. However, there are limitations and variations in the performance of endoscopists, leading to missed lesions and suboptimal outcomes. The emergence of artificial intelligence (AI) in endoscopy offers promising opportunities to improve the quality and efficacy of screening colonoscopies. In particular, AI applications, including computer-aided detection (CADe) and computer-aided characterization (CADx), have demonstrated the potential to enhance adenoma detection and optical diagnosis accuracy. Additionally, AI-assisted quality control systems aim to standardize the endoscopic examination process. This narrative review provides an overview of AI principles and discusses the current knowledge on AI-assisted endoscopy in the context of screening colonoscopies. It highlights the significant role of AI in improving lesion detection, characterization, and quality assurance during colonoscopy. However, further well-designed studies are needed to validate the clinical impact and cost-effectiveness of AI-assisted colonoscopy before its widespread implementation.
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Affiliation(s)
- Marco Spadaccini
- Department of Endoscopy, Humanitas Research Hospital, IRCCS, 20089 Rozzano, Italy; Department of Biomedical Sciences, Humanitas University, 20089 Rozzano, Italy.
| | - Joel Troya
- Interventional and Experimental Endoscopy (InExEn), Department of Internal Medicine II, University Hospital Würzburg, Würzburg, Germany
| | - Kareem Khalaf
- Division of Gastroenterology, St. Michael's Hospital, University of Toronto, Toronto, Canada
| | - Antonio Facciorusso
- Gastroenterology Unit, Department of Surgical and Medical Sciences, University of Foggia, Foggia, Italy
| | - Roberta Maselli
- Department of Endoscopy, Humanitas Research Hospital, IRCCS, 20089 Rozzano, Italy; Department of Biomedical Sciences, Humanitas University, 20089 Rozzano, Italy
| | - Alexander Hann
- Interventional and Experimental Endoscopy (InExEn), Department of Internal Medicine II, University Hospital Würzburg, Würzburg, Germany
| | - Alessandro Repici
- Department of Endoscopy, Humanitas Research Hospital, IRCCS, 20089 Rozzano, Italy; Department of Biomedical Sciences, Humanitas University, 20089 Rozzano, Italy
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Toyoshima O, Nishizawa T, Hiramatsu T, Matsuno T, Yoshida S, Mizutani H, Ebinuma H, Matsuda T, Saito Y, Fujishiro M. Colorectal adenoma detection rate using texture and color enhancement imaging versus white light imaging with chromoendoscopy: a propensity score matching study. J Gastroenterol Hepatol 2024. [PMID: 38872367 DOI: 10.1111/jgh.16655] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/08/2024] [Revised: 05/07/2024] [Accepted: 05/29/2024] [Indexed: 06/15/2024]
Abstract
BACKGROUND AND AIM Few studies have evaluated the adenoma detection rate (ADR) of colonoscopy with texture and color enhancement imaging (TXI), a novel image-enhancing technology. This study compares the detection of colorectal polyps using TXI to that using white light imaging (WLI). METHODS This single-center retrospective study used propensity-matched scoring based on the patients' baseline characteristics (age, sex, indication, bowel preparation, endoscopist, colonoscope type, and withdrawal time) to compare the results of patients who underwent chromoendoscopy using WLI or TXI at the Toyoshima Endoscopy Clinic. The differences in polyp detection rates and the mean number of detected polyps per colonoscopy were determined between the TXI and WLI groups. RESULTS After propensity score matching, 1970 patients were enrolled into each imaging modality group. The mean patient age was 57.2 ± 12.5 years, and 44.5% of the cohort were men. The ADR was higher in the TXI group than in the WLI group (55.0% vs 49.4%, odds ratio: 1.25). High-risk ADR were more common in the TXI group than in the WLI group (17.6% vs 12.8%; OR: 1.45). The mean number of adenomas per colonoscopy (APC) was higher in the TXI group than in the WLI group (1.187 vs 0.943, OR: 1.12). APC with a flat morphology (1.093 vs 0.848, OR: 1.14) and APC of <6 mm (0.992 vs 0.757, OR: 1.16) were higher in the TXI group than in the WLI group. CONCLUSION Compared to WLI, TXI improved the ADR in patients who underwent chromoendoscopy based on actual clinical data.
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Affiliation(s)
- Osamu Toyoshima
- Department of Gastroenterology, Toyoshima Endoscopy Clinic, Tokyo, Japan
| | - Toshihiro Nishizawa
- Department of Gastroenterology, Toyoshima Endoscopy Clinic, Tokyo, Japan
- Department of Gastroenterology and Hepatology, International University of Health and Welfare, Narita Hospital, Narita, Japan
| | - Takuma Hiramatsu
- Department of Gastroenterology, Toyoshima Endoscopy Clinic, Tokyo, Japan
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Tatsuya Matsuno
- Department of Gastroenterology, Toyoshima Endoscopy Clinic, Tokyo, Japan
| | - Shuntaro Yoshida
- Department of Gastroenterology, Toyoshima Endoscopy Clinic, Tokyo, Japan
- Department of Internal Medicine, Yoshida Clinic, Fukaya, Japan
| | - Hiroya Mizutani
- Department of Gastroenterology, Toyoshima Endoscopy Clinic, Tokyo, Japan
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Hirotoshi Ebinuma
- Department of Gastroenterology and Hepatology, International University of Health and Welfare, Narita Hospital, Narita, Japan
| | | | - Yutaka Saito
- Endoscopy Division, National Cancer Center Hospital, Tokyo, Japan
| | - Mitsuhiro Fujishiro
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
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Lykkegaard J, Olsen JK, Wehberg S, Jarbøl DE. The durability of previous examinations for cancer: Danish nationwide cohort study. Scand J Prim Health Care 2024; 42:246-253. [PMID: 38251839 PMCID: PMC11003324 DOI: 10.1080/02813432.2024.2305942] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Accepted: 01/10/2024] [Indexed: 01/23/2024] Open
Abstract
OBJECTIVE Patients previously examined for cancer with a negative result may present in general practice with ongoing or new symptoms or signs suggestive of cancer. This paper explores the potential existence of a relatively safe period for cancer occurrence after receiving negative examination results for specific types of cancer, including lung (CT thorax), upper gastrointestinal (gastroscopy), colorectal (colonoscopy), bladder (cystoscopy), and breast (clinical mammography). DESIGN Register-based time-to-event analyses. SETTING Denmark. SUBJECTS All 3.3 million citizens aged 30-85 years who on January first, 2017, had not previously been diagnosed with the specific type of cancer were categorized based on the time since their most recent examination. MAIN OUTCOME MEASURES Using 1-year follow-up, we calculated the age- and sex-adjusted hazard ratios of being diagnosed with the related cancer, with non-examined individuals as reference. Negative examination results were defined as the absence of a cancer diagnosis within 6 months following the examination. RESULTS Previous negative examination results were common, also among those diagnosed with cancer during follow-up. For 10 years after a negative colonoscopy the risk of diagnosing a colorectal cancer was nearly halved. However, already 1 year after a clinical mammography and 2 years after a CT thorax the risk of diagnosing the related cancers was significantly higher among those with a previous negative result compared to non-examined individuals. CONCLUSION This study did not identify a post-examination period in which the cancer risk, compared to non-examined individuals, was sufficiently low to confidently rule out any of the investigated cancers.
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Affiliation(s)
- Jesper Lykkegaard
- Research Unit for General Practice, Department of Public Health, University of Southern Denmark, Odense, Denmark
| | - Jonas Kanstrup Olsen
- Research Unit for General Practice, Department of Public Health, University of Southern Denmark, Odense, Denmark
| | - Sonja Wehberg
- Research Unit for General Practice, Department of Public Health, University of Southern Denmark, Odense, Denmark
| | - Dorte Ejg Jarbøl
- Research Unit for General Practice, Department of Public Health, University of Southern Denmark, Odense, Denmark
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Jin XF, Ma HY, Shi JW, Cai JT. Efficacy of artificial intelligence in reducing miss rates of GI adenomas, polyps, and sessile serrated lesions: a meta-analysis of randomized controlled trials. Gastrointest Endosc 2024; 99:667-675.e1. [PMID: 38184117 DOI: 10.1016/j.gie.2024.01.004] [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] [Received: 05/04/2023] [Revised: 11/20/2023] [Accepted: 01/01/2024] [Indexed: 01/08/2024]
Abstract
BACKGROUND AND AIMS The aim of this study was to determine if utilization of artificial intelligence (AI) in the course of endoscopic procedures can significantly diminish both the adenoma miss rate (AMR) and the polyp miss rate (PMR) compared with standard endoscopy. METHODS We performed an extensive search of various databases, encompassing PubMed, Embase, Cochrane Library, Web of Science, and Scopus, until June 2023. The search terms used were artificial intelligence, machine learning, deep learning, transfer machine learning, computer-assisted diagnosis, convolutional neural networks, gastrointestinal (GI) endoscopy, endoscopic image analysis, polyp, adenoma, and neoplasms. The main study aim was to explore the impact of AI on the AMR, PMR, and sessile serrated lesion miss rate. RESULTS A total of 7 randomized controlled trials were included in this meta-analysis. Pooled AMR was markedly lower in the AI group versus the non-AI group (pooled relative risk [RR], .46; 95% confidence interval [CI], .36-.59; P < .001). PMR was also reduced in the AI group in contrast with the non-AI control (pooled RR, .43; 95% CI, .27-.69; P < .001). The results showed that AI decreased the miss rate of sessile serrated lesions (pooled RR, .43; 95% CI, .20 to .92; P < .05) and diminutive adenomas (pooled RR, .49; 95% CI, .26-.93) during endoscopy, but no significant effect was observed for advanced adenomas (pooled RR, .48; 95% CI, .17-1.37; P = .17). The average number of polyps (Hedges' g = -.486; 95% CI, -.697 to -.274; P = .000) and adenomas (Hedges' g = -.312; 95% CI, -.551 to -.074; P = .01) detected during the second procedure also favored AI. However, AI implementation did not lead to a prolonged withdrawal time (P > .05). CONCLUSIONS This meta-analysis suggests that AI technology leads to significant reduction of miss rates for GI adenomas, polyps, and sessile serrated lesions during endoscopic surveillance. These results underscore the potential of AI to improve the accuracy and efficiency of GI endoscopic procedures.
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Affiliation(s)
- Xi-Feng Jin
- Department of Gastroenterology, The Second Affiliated Hospital Zhejiang University School of Medicine, Hangzhou, China.
| | - Hong-Yan Ma
- Tengzhou Central People's Hospital, Shandong Province, Zaozhuang, China
| | - Jun-Wen Shi
- Tengzhou Central People's Hospital, Shandong Province, Zaozhuang, China
| | - Jian-Ting Cai
- Department of Gastroenterology, The Second Affiliated Hospital Zhejiang University School of Medicine, Hangzhou, China
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11
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Sherif Naguib M, Khairy A, Shehab H, Abosheaishaa H, Meguid Kassem A. The impact of EndoCuff-assisted colonoscopy on the polyp detection rate: A cross-over randomized back-to-back study. Arab J Gastroenterol 2024; 25:102-108. [PMID: 38418285 DOI: 10.1016/j.ajg.2023.11.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Revised: 10/29/2023] [Accepted: 11/28/2023] [Indexed: 03/01/2024]
Abstract
BACKGROUND AND STUDY AIMS Colorectal cancer (CRC) is one of the most common cancers worldwide, and most CRCs develop from polyps with malignant potential. We aimed to study the difference in polyp detection rate between EndoCuff-assisted colonoscopies (EAC) and standard colonoscopy (SC). PATIENTS AND METHODS This study was conducted at Cairo University Hospitals on patients referred for screening or diagnostic colonoscopy from July 2018 to August 2020. All included patients underwent back-to-back standard colonoscopy (SC) and ENDOCUFF VISION-assisted colonoscopies (EAC). RESULTS 214 patients were included in this study. In comparison between EAC and SC, EAC increased the polyp detection rate (69 (32.24 %) vs. 57(26.64 %) (p < 0.05), EAC increased the detection of diminutive polyps ≤ 5 mm (104 vs. 81) (p < 0.05), and small polyps 6-9 mm (12 vs. 10) while there was no difference in large polyps ≥ 10 mm. EAC increased the adenoma detection rate (ADR) (37 (17.2 %) vs. 32(14.9 %) (p < 0.05). The findings detected by EAC shortened the interval of surveillance determined by SC findings. EndoCuff caused six mucosal erosions (2.8 %) in patients. CONCLUSION EAC increases the number of detected colonic polyps, primarily small polyps on the left and right sides of the colon.
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Affiliation(s)
- Mohammed Sherif Naguib
- Gastrointestinal Endoscopy and Liver Unit, Faculty of Medicine Cairo University, Cairo, Egypt
| | - Ahmed Khairy
- Gastrointestinal Endoscopy and Liver Unit, Faculty of Medicine Cairo University, Cairo, Egypt; Gastroenterology Division, Endemic Medicine Department, Cairo University, Cairo, Egypt
| | - Hany Shehab
- Gastrointestinal Endoscopy and Liver Unit, Faculty of Medicine Cairo University, Cairo, Egypt; Gastroenterology Division, Endemic Medicine Department, Cairo University, Cairo, Egypt
| | - Hazem Abosheaishaa
- Department of Internal Medicine, Icahn School of Medicine at Mount Sinai, NYC Health + Hospitals Queens, NY, USA.
| | - Abdel Meguid Kassem
- Gastrointestinal Endoscopy and Liver Unit, Faculty of Medicine Cairo University, Cairo, Egypt; Gastroenterology Division, Endemic Medicine Department, Cairo University, Cairo, Egypt
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12
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van Keulen KE, Papanikolaou IS, Mak TWC, Apostolopoulos P, Neumann H, Delconte G, Furnari M, Peters Y, Lau JYW, Polymeros D, Schrauwen RWN, Cavalcoli F, Koukoulioti E, Triantafyllou K, Anderson JC, Pohl H, Rex DK, Siersema PD. Comparison of adenoma miss rate and adenoma detection rate between conventional colonoscopy and colonoscopy with second-generation distal attachment cuff: a multicenter, randomized, back-to-back trial. Gastrointest Endosc 2024; 99:798-808.e3. [PMID: 37993062 DOI: 10.1016/j.gie.2023.11.017] [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] [Received: 12/13/2022] [Revised: 10/27/2023] [Accepted: 11/13/2023] [Indexed: 11/24/2023]
Abstract
BACKGROUND AND AIMS Endocuff Vision (Olympus Europe, Hamburg, Germany) has been designed to enhance mucosal visualization, thereby improving detection of (pre-)malignant colorectal lesions. This multicenter, international, back-to-back, randomized colonoscopy trial compared the adenoma detection rate (ADR) and adenoma miss rate (AMR) between Endocuff Vision-assisted colonoscopy (EVC) and conventional colonoscopy (CC). METHODS Patients aged 40 to 75 years referred for non-immunochemical fecal occult blood test-based screening, surveillance, or diagnostic colonoscopy were included at 10 hospitals and randomized into 4 groups: group 1, 2 × CC; group 2, CC followed by EVC; group 3, EVC followed by CC; and group 4, 2 × EVC. Primary outcomes included ADR and AMR. RESULTS A total of 717 patients were randomized, of whom 661 patients (92.2%) had 1 and 646 (90.1%) patients had 2 completed back-to-back colonoscopies. EVC did not significantly improve ADR compared to CC (41.1%; [95% confidence interval (CI), 36.1-46.3] vs 35.5% [95% CI, 30.7-40.6], respectively; P = .125), but EVC did reduce AMR by 11.7% (29.6% [95% CI, 23.6-36.5] vs 17.9% [95% CI, 12.5-23.5], respectively; P = .049). AMR of 2 × CC compared to 2 × EVC was also not significantly different (25.9% [95% CI, 19.3-33.9] vs 18.8% [95% CI, 13.9-24.8], respectively; P = .172). Only 3.7% of the polyps missed during the first procedures had advanced pathologic features. Factors affecting risk of missing adenomas were age (P = .002), Boston Bowel Preparation Scale (P = .008), and region where colonoscopy was performed (P < .001). CONCLUSIONS Our trial shows that EVC reduces the risk of missing adenomas but does not lead to a significantly improved ADR. Remarkably, 25% of adenomas are still missed during conventional colonoscopies, which is not different from miss rates reported 25 years ago; reassuringly, advanced features were only found in 3.7% of these missed lesions. (Clinical trial registration number: NCT03418948.).
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Affiliation(s)
- Kelly E van Keulen
- Department of Gastroenterology and Hepatology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Ioannis S Papanikolaou
- Hepatogastroenterology Unit, Second Department of Internal Medicine-Propaedeutic, Medical School, National and Kapodistrian University, Attikon University General Hospital, Athens, Greece
| | - Tony W C Mak
- Department of Surgery, Prince of Wales Hospital, Chinese University of Hongkong, Hongkong, China
| | | | - Helmut Neumann
- Department of Gastroenterology and Hepatology, University Medical Center Mainz, Mainz, Germany
| | - Gabriele Delconte
- Department of Diagnostic Endoscopy and Endoscopic Surgery, Istituto Nazionale Tumori, Milano, Italy
| | - Manuele Furnari
- Division of Gastroenterology, Department of Internal Medicine, University of Genoa, Genoa, Italy
| | - Yonne Peters
- Department of Gastroenterology and Hepatology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - James Y W Lau
- Department of Surgery, Prince of Wales Hospital, Chinese University of Hongkong, Hongkong, China
| | - Dimitrios Polymeros
- Hepatogastroenterology Unit, Second Department of Internal Medicine-Propaedeutic, Medical School, National and Kapodistrian University, Attikon University General Hospital, Athens, Greece
| | - Ruud W N Schrauwen
- Department of Gastroenterology, Bernhoven Hospital, Uden, The Netherlands
| | - Federica Cavalcoli
- Department of Diagnostic Endoscopy and Endoscopic Surgery, Istituto Nazionale Tumori, Milano, Italy
| | - Eleni Koukoulioti
- Department of Gastroenterology, 417 Army Veterans Hospital, Athens, Greece
| | - Konstantinos Triantafyllou
- Hepatogastroenterology Unit, Second Department of Internal Medicine-Propaedeutic, Medical School, National and Kapodistrian University, Attikon University General Hospital, Athens, Greece
| | - Joseph C Anderson
- Department of Gastroenterology, Gastroenterology, Veterans Affairs Medical Center, White River Junction, Vermont, USA
| | - Heiko Pohl
- Department of Gastroenterology, Gastroenterology, Veterans Affairs Medical Center, White River Junction, Vermont, USA
| | - Douglas K Rex
- Division of Gastroenterology/Hepatology, Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Peter D Siersema
- Department of Gastroenterology and Hepatology, Radboud University Medical Center, Nijmegen, The Netherlands; Department of Gastroenterology and Hepatology, Erasmus MC-University Medical Center, Rotterdam, The Netherlands.
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13
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Hsu CM, Chen TH, Hsu CC, Wu CH, Lin CJ, Le PH, Lin CY, Kuo T. Two-stage deep-learning-based colonoscopy polyp detection incorporating fisheye and reflection correction. J Gastroenterol Hepatol 2024; 39:733-739. [PMID: 38225761 DOI: 10.1111/jgh.16470] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Revised: 11/28/2023] [Accepted: 12/14/2023] [Indexed: 01/17/2024]
Abstract
BACKGROUND AND AIM Colonoscopy is a useful method for the diagnosis and management of colorectal diseases. Many computer-aided systems have been developed to assist clinicians in detecting colorectal lesions by analyzing colonoscopy images. However, fisheye-lens distortion and light reflection in colonoscopy images can substantially affect the clarity of these images and their utility in detecting polyps. This study proposed a two-stage deep-learning model to correct distortion and reflections in colonoscopy images and thus facilitate polyp detection. METHODS Images were collected from the PolypSet dataset, the Kvasir-SEG dataset, and one medical center's patient archiving and communication system. The training, validation, and testing datasets comprised 808, 202, and 1100 images, respectively. The first stage involved the correction of fisheye-related distortion in colonoscopy images and polyp detection, which was performed using a convolutional neural network. The second stage involved the use of generative and adversarial networks for correcting reflective colonoscopy images before the convolutional neural network was used for polyp detection. RESULTS The model had higher accuracy when it was validated using corrected images than when it was validated using uncorrected images (96.8% vs 90.8%, P < 0.001). The model's accuracy in detecting polyps in the Kvasir-SEG dataset reached 96%, and the area under the receiver operating characteristic curve was 0.94. CONCLUSION The proposed model can facilitate the clinical diagnosis of colorectal polyps and improve the quality of colonoscopy.
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Affiliation(s)
- Chen-Ming Hsu
- Department of Gastroenterology and Hepatology, Chang Gung Memorial Hospital Taoyuan Branch, Taoyuan, Taiwan
- Department of Gastroenterology and Hepatology, Chang Gung Memorial Hospital Linkou Main Branch, Taoyuan, Taiwan
- Chang Gung University College of Medicine, Taoyuan, Taiwan
| | - Tsung-Hsing Chen
- Department of Gastroenterology and Hepatology, Chang Gung Memorial Hospital Linkou Main Branch, Taoyuan, Taiwan
- Chang Gung University College of Medicine, Taoyuan, Taiwan
| | - Chien-Chang Hsu
- Department of Computer Science and Information Engineering, Fu Jen Catholic University, Taipei, Taiwan
| | - Che-Hao Wu
- Department of Computer Science and Information Engineering, Fu Jen Catholic University, Taipei, Taiwan
| | - Chun-Jung Lin
- Department of Gastroenterology and Hepatology, Chang Gung Memorial Hospital Linkou Main Branch, Taoyuan, Taiwan
- Chang Gung University College of Medicine, Taoyuan, Taiwan
| | - Puo-Hsien Le
- Department of Gastroenterology and Hepatology, Chang Gung Memorial Hospital Linkou Main Branch, Taoyuan, Taiwan
- Chang Gung University College of Medicine, Taoyuan, Taiwan
| | - Cheng-Yu Lin
- Department of Gastroenterology and Hepatology, Chang Gung Memorial Hospital Linkou Main Branch, Taoyuan, Taiwan
| | - Tony Kuo
- Department of Gastroenterology and Hepatology, Chang Gung Memorial Hospital Linkou Main Branch, Taoyuan, Taiwan
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14
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Ortiz O, Daca-Alvarez M, Rivero-Sánchez L, Saez De Gordoa K, Moreira R, Cuatrecasas M, Balaguer F, Pellisé M. Linked-color imaging versus high definition white-light endoscopy for evaluation of post-polypectomy scars of nonpedunculated lesions: LCI-Scar study. Endoscopy 2024; 56:283-290. [PMID: 37931908 DOI: 10.1055/a-2204-3236] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2023]
Abstract
BACKGROUND Detection and treatment of recurrence after piecemeal endoscopic mucosal resection of nonpedunculated colorectal polyps are crucial for avoidance of post-colonoscopy cancer. Linked-color imaging (LCI) has demonstrated improved polyp detection but has never been assessed for evaluation of post-polypectomy scars. Our aim was to compare sensitivity and negative predictive value (NPV) between LCI and white-light endoscopy (WLE) for detection of post-polypectomy recurrence. METHODS Patients undergoing surveillance colonoscopy after resection of lesions ≥15 mm were included in this prospective, single-center, randomized, crossover study. Each post-polypectomy scar underwent two examinations, one with LCI and the other with WLE, performed by two blinded endoscopists. Blue-light imaging (BLI) was then applied. A diagnosis of recurrence with a level of confidence was made for each modality and histopathology was the gold standard. RESULTS 129 patients with 173 scars were included. Baseline patient, lesion, and procedural characteristics were similar in both arms. Recurrence was detected in 56/173 (32.4%), with 27/56 (48.2%) adenomas and 29/56 (51.8%) serrated lesions. LCI had greater sensitivity (96.4% [95%CI 87.8%-99.5%]) versus WLE (89.3% [95%CI 78.1%-95.9%]) and greater NPV (98.1% [95%CI 93.4%-99.8%] versus 94.6% [95%CI 88.7%-98.0%]). Paired concordance between modalities was 96.0%. In discordant cases, LCI identified four true-positive cases not detected by WLE and reclassified one false-positive of WLE. WLE reclassified two false positives of LCI without any increase in recurrence detection. CONCLUSIONS LCI was highly accurate and had greater ability than WLE to rule out recurrence on post-polypectomy scars after resection of large polyps.
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Affiliation(s)
- Oswaldo Ortiz
- Department of Gastroenterology, Hospital Clínic de Barcelona, Barcelona, Spain
- Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), Barcelona, Spain
| | - Maria Daca-Alvarez
- Department of Gastroenterology, Hospital Clínic de Barcelona, Barcelona, Spain
- Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), Barcelona, Spain
| | - Liseth Rivero-Sánchez
- Department of Gastroenterology, Hospital Clínic de Barcelona, Barcelona, Spain
- Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), Barcelona, Spain
| | | | - Rebeca Moreira
- Department of Gastroenterology, Hospital Clínic de Barcelona, Barcelona, Spain
| | - Miriam Cuatrecasas
- Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
- Department of Pathology, Hospital Clínic de Barcelona, Barcelona, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), Barcelona, Spain
| | - Francesc Balaguer
- Department of Gastroenterology, Hospital Clínic de Barcelona, Barcelona, Spain
- Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), Barcelona, Spain
| | - Maria Pellisé
- Department of Gastroenterology, Hospital Clínic de Barcelona, Barcelona, Spain
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15
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Rabago LR, Delgado Galan M. Precision in detecting colon lesions: A key to effective screening policy but will it improve overall outcomes? World J Gastrointest Endosc 2024; 16:102-107. [PMID: 38577643 PMCID: PMC10989250 DOI: 10.4253/wjge.v16.i3.102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Revised: 12/29/2023] [Accepted: 01/23/2024] [Indexed: 03/14/2024] Open
Abstract
Colonoscopy is the gold standard for the screening and diagnosis of colorectal cancer, resulting in a decrease in the incidence and mortality of colon cancer. However, it has a 21% rate of missed polyps. Several strategies have been devised to increase polyp detection rates and improve their characterization and delimitation. These include chromoendoscopy (CE), the use of other devices such as Endo cuffs, and major advances in endoscopic equipment [high definition, magnification, narrow band imaging, i-scan, flexible spectral imaging color enhancement, texture and color enhancement imaging (TXI), etc.]. In the retrospective study by Hiramatsu et al, they compared white-light imaging with CE, TXI, and CE + TXI to determine which of these strategies allows for better definition and delimitation of polyps. They concluded that employing CE associated with TXI stands out as the most effective method to utilize. It remains to be demonstrated whether these results are extrapolatable to other types of virtual CE. Additionally, further investigation is needed in order to ascertain whether this strategy could lead to a reduction in the recurrence of excised lesions and potentially lower the occurrence of interval cancer.
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Affiliation(s)
- Luis Ramon Rabago
- Department of Gastroenterology, Hospital San Rafael, Madrid 28016, Spain
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16
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Maas MHJ, Neumann H, Shirin H, Katz LH, Benson AA, Kahloon A, Soons E, Hazzan R, Landsman MJ, Lebwohl B, Lewis SK, Sivanathan V, Ngamruengphong S, Jacob H, Siersema PD. A computer-aided polyp detection system in screening and surveillance colonoscopy: an international, multicentre, randomised, tandem trial. Lancet Digit Health 2024; 6:e157-e165. [PMID: 38395537 DOI: 10.1016/s2589-7500(23)00242-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 11/01/2023] [Accepted: 11/16/2023] [Indexed: 02/25/2024]
Abstract
BACKGROUND Studies on the effect of computer-aided detection (CAD) in a daily clinical screening and surveillance colonoscopy population practice are scarce. The aim of this study was to evaluate a novel CAD system in a screening and surveillance colonoscopy population. METHODS This multicentre, randomised, controlled trial was done in ten hospitals in Europe, the USA, and Israel by 31 endoscopists. Patients referred for non-immunochemical faecal occult blood test (iFOBT) screening or surveillance colonoscopy were included. Patients were randomomly assigned to CAD-assisted colonoscopy or conventional colonoscopy; a subset was further randomly assigned to undergo tandem colonoscopy: CAD followed by conventional colonoscopy or conventional colonoscopy followed by CAD. Primary objectives included adenoma per colonoscopy (APC) and adenoma per extraction (APE). Secondary objectives included adenoma miss rate (AMR) in the tandem colonoscopies. The study was registered at ClinicalTrials.gov, NCT04640792. FINDINGS A total of 916 patients were included in the modified intention-to-treat analysis: 449 in the CAD group and 467 in the conventional colonoscopy group. APC was higher with CAD compared with conventional colonoscopy (0·70 vs 0·51, p=0·015; 314 adenomas per 449 colonoscopies vs 238 adenomas per 467 colonoscopies; poisson effect ratio 1·372 [95% CI 1·068-1·769]), while showing non-inferiority of APE compared with conventional colonoscopy (0·59 vs 0·66; p<0·001 for non-inferiority; 314 of 536 extractions vs 238 of 360 extractions). AMR in the 127 (61 with CAD first, 66 with conventional colonoscopy first) patients completing tandem colonoscopy was 19% (11 of 59 detected during the second pass) in the CAD first group and 36% (16 of 45 detected during the second pass) in the conventional colonoscopy first group (p=0·024). INTERPRETATION CAD increased adenoma detection in non-iFOBT screening and surveillance colonoscopies and reduced adenoma miss rates compared with conventional colonoscopy, without an increase in the resection of non-adenomatous lesions. FUNDING Magentiq Eye.
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Affiliation(s)
- Michiel H J Maas
- Department of Gastroenterology & Hepatology, Radboud University Medical Center, Nijmegen, Netherlands.
| | - Helmut Neumann
- University Medical Center Mainz, Interventional Endoscopy Center, I Medizinische Klinik und Poliklinik, Mainz, Germany
| | - Haim Shirin
- Institute of Gastroenterology and Liver Diseases, Shamir (Assaf Harofeh) Medical Center, Zerifin, Israel
| | - Lior H Katz
- Hadassah Medical Center and Faculty of Medicine, Hebrew University of Jerusalem, Institute of Gastroenterology and Liver Diseases, Jerusalem, Israel
| | - Ariel A Benson
- Hadassah Medical Center and Faculty of Medicine, Hebrew University of Jerusalem, Institute of Gastroenterology and Liver Diseases, Jerusalem, Israel
| | - Arslan Kahloon
- College of Medicine, Division of Gastroenterology, University of Tennessee, Chattanooga, TN, USA
| | - Elsa Soons
- Department of Gastroenterology & Hepatology, Radboud University Medical Center, Nijmegen, Netherlands
| | - Rawi Hazzan
- Assuta Centers, Haifa Gastroenterology Institute, Haifa, Israel
| | - Marc J Landsman
- Department of Gastroenterology, MetroHealth Medical Center, Cleveland, OH, USA
| | - Benjamin Lebwohl
- Department of Gastroenterology, Columbia University Irving Medical Center, New York, NY, USA
| | - Suzanne K Lewis
- Department of Gastroenterology, Columbia University Irving Medical Center, New York, NY, USA
| | - Visvakanth Sivanathan
- University Medical Center Mainz, Interventional Endoscopy Center, I Medizinische Klinik und Poliklinik, Mainz, Germany
| | | | - Harold Jacob
- Hadassah Medical Center and Faculty of Medicine, Hebrew University of Jerusalem, Institute of Gastroenterology and Liver Diseases, Jerusalem, Israel
| | - Peter D Siersema
- Department of Gastroenterology & Hepatology, Radboud University Medical Center, Nijmegen, Netherlands; Department of Gastroenterology & Hepatology, Erasmus MC, University Medical Center, Rotterdam, Netherlands
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17
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Barsuk JH, Cohen ER, Patel RV, Keswani RN, Aadam AA, Wayne DB, Cameron KA, Komanduri S. Effect of Polypectomy Simulation-Based Mastery Learning on Skill Retention Among Practicing Endoscopists. ACADEMIC MEDICINE : JOURNAL OF THE ASSOCIATION OF AMERICAN MEDICAL COLLEGES 2024; 99:317-324. [PMID: 37934830 PMCID: PMC10922268 DOI: 10.1097/acm.0000000000005538] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2023]
Abstract
PURPOSE Practicing endoscopists frequently perform and teach screening colonoscopies and polypectomies, but there is no standardized method to train and assess physicians who perform polypectomy procedures. The authors created a polypectomy simulation-based mastery learning (SBML) curriculum and hypothesized that completion of the curriculum would lead to immediate improvement in polypectomy skills and skill retention at 6 and 12 months after training. METHOD The authors performed a pretest-posttest cohort study with endoscopists who completed SBML and were randomized to follow-up at 6 or 12 months from May 2021 to August 2022. Participants underwent SBML training, including a pretest, a video lecture, deliberate practice, and a posttest. All learners were required to meet or exceed a minimum passing standard on a 17-item skills checklist before completing training and were randomized to follow-up at 6 or 12 months. The authors compared simulated polypectomy skills performance on the checklist from pretest to posttest and posttest to 6- or 12-month follow-up test. RESULTS Twenty-four of 30 eligible participants (80.0%) completed the SBML intervention, and 20 of 24 (83.3%) completed follow-up testing. The minimum passing standard was set at 93% of checklist items correct. The pretest passing rate was 4 of 24 participants (16.7%) compared with 24 of 24 participants (100%) at posttest ( P < .001). There were no significant differences in passing rates from posttest to combined 6- and 12-month posttest in which 18 of 20 participants (90.0%) passed. CONCLUSIONS Before training and despite years of clinical experience, practicing endoscopists demonstrated poor performance of polypectomy skills. SBML was an effective method for practicing endoscopists to acquire and maintain polypectomy skills during a 6- to 12-month period.
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Radadiya D, Desai M, Patel H, Srinivasan S, Chandrasekar VT, Hassan C, Repici A, Rex D, Sharma P. Analyzing methods for reducing recurrence rates after EMR of large nonpedunculated colorectal polyps: an indirect pairwise comparison. Gastrointest Endosc 2024; 99:326-336.e6. [PMID: 38065513 DOI: 10.1016/j.gie.2023.11.060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/11/2023] [Revised: 11/02/2023] [Accepted: 11/21/2023] [Indexed: 02/19/2024]
Abstract
BACKGROUND AND AIMS Despite advances in EMR techniques, a high polyp recurrence rate remains a challenge. Due to the scarcity of direct comparisons, we performed an indirect comparison of conventional EMR (EMR alone), underwater EMR (U-EMR), and EMR + adjuvant thermal ablation of polypectomy margins to assess polyp recurrence rates. METHODS Electronic databases were searched from inception to January 12, 2023, for studies reporting polyp recurrence rates after EMR for large nonpedunculated polyps (>15 mm) with or without adjuvant techniques (snare tip soft coagulation [STSC]/argon plasma coagulation [APC]). An indirect comparison was performed by using the frequentist method. The p-score was calculated to identify preferred intervention. Publication bias was assessed by using a comparison-adjusted funnel plot. RESULTS A total of 9 full articles were identified. On direct comparisons, EMR + STSC had 82% reduced odds (odds ratio, .18; 95% confidence interval, .13-.26; P < .001), whereas U-EMR alone had 77% reduced odds (odds ratio, .23; 95% confidence interval, .08-.67; P = .007) of polyp recurrence compared with EMR alone. On indirect comparison, all interventions had significantly lower odds of polyp recurrence compared with EMR alone. The p-score ranking showed that EMR + STSC seems a potential first method in reducing the odds of polyp recurrence, followed by U-EMR, EMR + APC, and EMR alone. CONCLUSIONS EMR + STSC seems to provide favorable odds for reducing polyp recurrence postresection for large nonpedunculated polyps. Standardization of methods to detect residual polyp and prevent polyp recurrence at the time of EMR are required.
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Affiliation(s)
- Dhruvil Radadiya
- Division of Gastroenterology, Department of Internal Medicine, University of Kansas-School of Medicine, Kansas City, Kansas, USA.
| | - Madhav Desai
- Division of Gastroenterology hepatology and nutrition, Department of Medicine, University of Minnesota Medical Center, Minneapolis, Minnesota, USA
| | - Harsh Patel
- Division of Gastroenterology, Department of Internal Medicine, University of Kansas-School of Medicine, Kansas City, Kansas, USA
| | - Sachin Srinivasan
- Division of Gastroenterology, Department of Internal Medicine, University of Kansas-School of Medicine, Kansas City, Kansas, USA
| | | | - Cesare Hassan
- Endoscopy Unit, IRCCS Humanitas Clinical and Research Center, Rozzano, Italy
| | - Alessandro Repici
- Endoscopy Unit, IRCCS Humanitas Clinical and Research Center, Rozzano, Italy
| | - Douglas Rex
- Division of Gastroenterology, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Prateek Sharma
- Division of Gastroenterology, Department of Internal Medicine, University of Kansas-School of Medicine, Kansas City, Kansas, USA; Kansas City VA Medical Center, Kansas City, Missouri, USA
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Chino A, Ide D, Abe S, Yoshinaga S, Ichimasa K, Kudo T, Ninomiya Y, Oka S, Tanaka S, Igarashi M. Performance evaluation of a computer-aided polyp detection system with artificial intelligence for colonoscopy. Dig Endosc 2024; 36:185-194. [PMID: 37099623 DOI: 10.1111/den.14578] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/21/2023] [Accepted: 04/25/2023] [Indexed: 04/27/2023]
Abstract
OBJECTIVES A computer-aided detection (CAD) system was developed to support the detection of colorectal lesions by deep learning using video images of lesions and normal mucosa recorded during colonoscopy. The study's purpose was to evaluate the stand-alone performance of this device under blinded conditions. METHODS This multicenter prospective observational study was conducted at four Japanese institutions. We used 326 videos of colonoscopies recorded with patient consent at institutions in which the Ethics Committees approved the study. The sensitivity of successful detection of the CAD system was calculated using the target lesions, which were detected by adjudicators from two facilities for each lesion appearance frame; inconsistencies were settled by consensus. Successful detection was defined as display of the detection flag on the lesion for more than 0.5 s within 3 s of appearance. RESULTS Of the 556 target lesions from 185 cases, detection success sensitivity was 97.5% (95% confidence interval [CI] 95.8-98.5%). The "successful detection sensitivity per colonoscopy" was 93% (95% CI 88.3-95.8%). For the frame-based sensitivity, specificity, positive predictive value, and negative predictive value were 86.6% (95% CI 84.8-88.4%), 84.7% (95% CI 83.8-85.6%), 34.9% (95% CI 32.3-37.4%), and 98.2% (95% CI 97.8-98.5%), respectively. TRIAL REGISTRATION University Hospital Medical Information Network (UMIN000044622).
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Affiliation(s)
- Akiko Chino
- Department of Gastroenterology, Cancer Institute Hospital of Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Daisuke Ide
- Department of Gastroenterology, Cancer Institute Hospital of Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Seiichiro Abe
- Endoscopy Division, National Cancer Center Hospital, Tokyo, Japan
| | | | - Katsuro Ichimasa
- Digestive Disease Center, Showa University Northern Yokohama Hospital, Kanagawa, Japan
| | - Toyoki Kudo
- Tokyo Endoscopic Clinic, Tokyo, Japan
- Digestive Disease Center, Showa University Northern Yokohama Hospital, Kanagawa, Japan
| | - Yuki Ninomiya
- Department of Endoscopy, Hiroshima University Hospital, Hiroshima, Japan
| | - Shiro Oka
- Department of Endoscopy, Hiroshima University Hospital, Hiroshima, Japan
| | - Shinji Tanaka
- Department of Endoscopy, Hiroshima University Hospital, Hiroshima, Japan
| | - Masahiro Igarashi
- Department of Gastroenterology, Cancer Institute Hospital of Japanese Foundation for Cancer Research, Tokyo, Japan
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20
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Denis B, Bertolaso A, Gendre I, Perrin P, Hammas K. Post-colonoscopy colorectal cancer: A population-based cohort study of fecal occult blood test-positive colonoscopies. Clin Res Hepatol Gastroenterol 2024; 48:102285. [PMID: 38246488 DOI: 10.1016/j.clinre.2024.102285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Revised: 01/09/2024] [Accepted: 01/19/2024] [Indexed: 01/23/2024]
Abstract
BACKGROUND Data on post-colonoscopy colorectal cancers (PCCRCs) after fecal occult blood test (FOBT)-positive colonoscopies is scarce (guaiac-based (gFOBT) or fecal immunochemical test (FIT)). AIMS Evaluate the prevalence and characteristics of PCCRCs in the French gFOBT CRC screening program. METHODS Retrospective population-based cohort study of all gFOBT-positive colonoscopies performed among individuals aged 50-74 between 2003 and 2014 within the CRC screening program organized in the Haut-Rhin (Alsace, France). The main outcome was PCCRC-3y rate. Adenoma detection rates (ADRs) calculated on gFOBT-positive colonoscopies were compared to those calculated on FIT-positive colonoscopies performed by the same gastroenterologists. RESULTS Overall, 9106 gFOBT-positive colonoscopies performed by 36 gastroenterologists were included. Sixteen PCCRC-3y and 31 PCCRC-5y were diagnosed (68.8 % and 58.1 % were true interval PCCRCs respectively). The unadjusted PCCRC-3y rate was 2.4 % [95 % confidence interval (CI) 1.4 %-3.9 %]. The risk for PCCRC-5y was significantly higher when the gastroenterologist's ADR was <35 % compared to ≥35 % (HR 2.17 [95 %CI 1.19-3.93]). The mean absolute difference for ADR between gFOBT- and FIT-positive colonoscopies was 16.3 % in favor of FIT-positive colonoscopies. CONCLUSION PCCRC-3y prevalence was low, estimated at 2.4 %. We suggest that the minimum standard for ADR in gFOBT- and FIT-positive colonoscopies should be set at 35 % and 50 % to 55 % respectively, in the French screening program.
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Affiliation(s)
- Bernard Denis
- Department of Gastroenterology, Pasteur Hospital, 39 avenue de la Liberté, Colmar 68024, France; ADECA Alsace, 122 rue de Logelbach, Colmar, France.
| | - Alice Bertolaso
- Haut-Rhin Cancer Registry, GHRMSA, 87 avenue d'Altkirch, Mulhouse, France
| | - Isabelle Gendre
- ADECA Alsace, 122 rue de Logelbach, Colmar, France; CRCDC Grand Est, Site de Colmar, 122 rue de Logelbach, Colmar, France
| | - Philippe Perrin
- ADECA Alsace, 122 rue de Logelbach, Colmar, France; CRCDC Grand Est, Site de Colmar, 122 rue de Logelbach, Colmar, France
| | - Karima Hammas
- Haut-Rhin Cancer Registry, GHRMSA, 87 avenue d'Altkirch, Mulhouse, France
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21
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Djinbachian R, Amar L, Pohl H, Safih W, Bouchard S, Deslandres E, Dorais J, von Renteln D. Local recurrence rates after resection of large colorectal serrated lesions with or without margin thermal ablation. Scand J Gastroenterol 2024; 59:112-117. [PMID: 37743643 DOI: 10.1080/00365521.2023.2257824] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Accepted: 09/06/2023] [Indexed: 09/26/2023]
Abstract
INTRODUCTION Serrated lesions (SLs) including traditional serrated adenomas (TSA), large hyperplastic polyps (HP) and sessile serrated lesions (SSLs) are associated with high incomplete resection rates. Margin ablation combined with EMR (EMR-T) has become routine to reduce local recurrence while cold snare polypectomy (CSP) is becoming recognized as equally effective for large SLs. Our aim was to evaluate local recurrence rates (LRR) and the use of margin ablation in preventing recurrence in a retrospective cohort study. METHODS Patients undergoing resection of ≥15 mm colorectal SLs from 2010-2022 were identified through a pathology database and electronic medical records search. Hereditary CRC syndromes, first follow-up > 18 months or no follow-up, surgical resection were excluded. Primary outcome was LRRs (either histologic or visual) during the first 18-month follow-up. Secondary outcomes were LRRs according to size, and resection technique. RESULTS 191 polyps in 170 patients were resected (59.8% women; mean age, 65 years). The mean size of polyps was 22.4 mm, with 107 (56.0%) ≥20 mm. 99 polyps were resected with EMR, 39 with EMR-T, and 26 with CSP. Mean first surveillance was 8.2 mo. Overall LRR was 18.8% (36/191) (16.8% for ≥20 mm, 17.9% for ≥30 mm). LRR was significantly lower after EMR-T when compared with EMR (5.1% vs. 23.2%; p = 0.013) or CSP (5.1% vs. 23.1%; p = 0.031). There was no difference in LRR between EMR without margin ablation and CSP (p = 0.987). CONCLUSION The local recurrence rate for SLs ≥15 mm is high with 18.8% overall recurrence. EMR with thermal ablation of the margins is superior to both no ablation and CSP in reducing LRRs.
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Affiliation(s)
- Roupen Djinbachian
- Division of Gastroenterology,Montreal University Hospital Research Center (CRCHUM), Montreal, Canada
- Division of Gastroenterology, Montreal University Hospital Center (CHUM), Montreal, Canada
| | - Laetitia Amar
- Division of Gastroenterology,Montreal University Hospital Research Center (CRCHUM), Montreal, Canada
| | - Heiko Pohl
- Dartmouth Geisel School of Medicine, Hanover, NH, USA
- Division of Gastroenterology, VA Medical Center, VT, USA
| | - Widad Safih
- Division of Gastroenterology,Montreal University Hospital Research Center (CRCHUM), Montreal, Canada
| | - Simon Bouchard
- Division of Gastroenterology,Montreal University Hospital Research Center (CRCHUM), Montreal, Canada
- Division of Gastroenterology, Montreal University Hospital Center (CHUM), Montreal, Canada
| | - Erik Deslandres
- Division of Gastroenterology,Montreal University Hospital Research Center (CRCHUM), Montreal, Canada
- Division of Gastroenterology, Montreal University Hospital Center (CHUM), Montreal, Canada
| | - Judy Dorais
- Division of Gastroenterology,Montreal University Hospital Research Center (CRCHUM), Montreal, Canada
- Division of Gastroenterology, Montreal University Hospital Center (CHUM), Montreal, Canada
| | - Daniel von Renteln
- Division of Gastroenterology,Montreal University Hospital Research Center (CRCHUM), Montreal, Canada
- Division of Gastroenterology, Montreal University Hospital Center (CHUM), Montreal, Canada
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22
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Liang Z, Wei Y, Zhang S, Li P. The efficacy and safety of cold snare polypectomy with submucosal injection for the removal of polyps less than 20 mm in size: a systematic review and meta-analysis. J Gastroenterol Hepatol 2023; 38:1892-1899. [PMID: 37608577 DOI: 10.1111/jgh.16308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Revised: 06/25/2023] [Accepted: 07/10/2023] [Indexed: 08/24/2023]
Abstract
BACKGROUND AND AIM Neoplastic polyp removal is important for colorectal cancer prevention. Endoscopists have proposed cold snare endoscopic mucosal resection (CS-EMR) as a solution to solve positive cutting edges and postoperative bleeding. However, many controversies regarding its specific performance in practice have been reported. The aim of this pooled analysis was to report the efficacy and safety of CS-EMR. METHODS PubMed/Medline, Embase, Google Scholar, and the Cochrane Library searched up to January 2022 to identify studies in which CS-EMR was performed for the removal of colorectal polyps measuring less than 20 mm. The primary outcome was the complete resection rate (CRR), and the secondary outcome was the rate of adverse events. RESULTS Eleven studies were included in the final analysis, which included 861 colorectal polyps. The overall CRR with CS-EMR was 96.3% (95% CI, 93.9-98.2%). The early and delayed bleeding rates of CS-EMR were 3.1% (95% CI, 1.2-5.5%) and 1.4% (95% CI, 0.6-2.4%), respectively. There were no statistical significances between CS-EMR and cold snare polypectomy (CSP) in terms of the CRR and adverse events, as well as CS-EMR and hot snare endoscopic mucosal resection (HS-EMR). CONCLUSIONS For resecting colorectal polyps measuring ≤20 mm, CS-EMR is an effective attempt. However, compared with CSP and HS-EMR, CS-EMR did not improve the efficiency and safety of polypectomy as expected. Multicenter randomized controlled trials are needed to compare CSP with CS-EMR in the resection of <10 mm polyps and HSP with CS-EMR in the resection of ≥10 mm polyps.
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Affiliation(s)
- Zheng Liang
- Department of Gastroenterology, Beijing Friendship Hospital, Capital Medical University, National Clinical Research Center for Digestive Disease, Beijing, China
| | - Yongqiu Wei
- Department of Gastroenterology, Beijing Friendship Hospital, Capital Medical University, National Clinical Research Center for Digestive Disease, Beijing, China
| | - Shutian Zhang
- Department of Gastroenterology, Beijing Friendship Hospital, Capital Medical University, National Clinical Research Center for Digestive Disease, Beijing, China
| | - Peng Li
- Department of Gastroenterology, Beijing Friendship Hospital, Capital Medical University, National Clinical Research Center for Digestive Disease, Beijing, China
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23
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Khan AA, Sarmini MT, Bell R, El Halabi J, Lyu R, Macaron C, Bhatt A, Burke CA. Frequency of endoscopic photodocumentation of large colorectal polyps. Gastrointest Endosc 2023; 98:797-802. [PMID: 37356633 DOI: 10.1016/j.gie.2023.06.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/09/2023] [Revised: 05/13/2023] [Accepted: 06/11/2023] [Indexed: 06/27/2023]
Abstract
BACKGROUND AND AIMS Colonoscopy quality affects colorectal cancer (CRC) incidence and mortality. The U.S. Multi-Society Task Force on Colorectal Cancer strongly recommends photodocumentation (PD) of lesions ≥10 mm in size (ie, large polyps [LPs]) pre-resection and suggests PD postresection to enhance the quality of colonoscopy. No studies have assessed the frequency of LP PD. We evaluated the frequency of and factors associated with PD of LPs. METHODS Reports from endoscopists performing ≥50 colonoscopies with LP resection between 2016 and 2021 were reviewed. The frequency of LP PD pre-resection and post-resection and factors associated with PD were collected. A composite score of 2 quality metrics (PD of completeness of examination and bowel preparation quality) was created. Endoscopists were divided into 2 tiers based on the frequency of the score on all included examinations: Tier 1, ≥95% of examinations; and Tier 2, <95% of examinations. Univariate and multivariate analyses were used to assess factors associated with PD. RESULTS A total of 1322 colonoscopies, 1693 LPs, and 25 endoscopists were included in this study. PD of LPs occurred in 1392 (82%) pre-resection and in 878 (52%) post-resection. Factors associated with pre-resection PD include endoscopist subspecialty (colorectal surgery vs gastroenterology: odds ratio [OR], .12; 95% confidence interval [CI], .04-.42); >1 LP on examination (2 vs 1 LP: OR, .41 [95% CI, .27-.61]; and ≥3 vs 1 LP: OR, .41 [95% CI, .24-.70]), and longer withdrawal time (OR, 1.02; 95% CI, 1.01-1.04). CONCLUSIONS We provide the first data on PD of LP pre-resection and post-resection, which can inform future benchmarking in this area. The implications of PD on metachronous advanced neoplasia need to be studied.
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Affiliation(s)
- Afshin A Khan
- Department of Internal Medicine, Cleveland Clinic, Cleveland, Ohio, USA
| | - Muhammad Talal Sarmini
- Department of Gastroenterology, Hepatology and Nutrition, Cleveland Clinic, Cleveland, Ohio, USA
| | - Ruth Bell
- Department of Internal Medicine, Cleveland Clinic, Cleveland, Ohio, USA
| | - Jessica El Halabi
- Department of Internal Medicine, Cleveland Clinic, Cleveland, Ohio, USA
| | - Ruishen Lyu
- Department of Quantitative Health Sciences, Cleveland Clinic, Cleveland, Ohio, USA
| | - Carole Macaron
- Department of Gastroenterology, Hepatology and Nutrition, Cleveland Clinic, Cleveland, Ohio, USA
| | - Amit Bhatt
- Department of Gastroenterology, Hepatology and Nutrition, Cleveland Clinic, Cleveland, Ohio, USA
| | - Carol A Burke
- Department of Gastroenterology, Hepatology and Nutrition, Cleveland Clinic, Cleveland, Ohio, USA.
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24
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Holme Ø. Are we ready for the cold snare revolution? Endoscopy 2023; 55:938-939. [PMID: 36827990 DOI: 10.1055/a-2025-0997] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/26/2023]
Affiliation(s)
- Øyvind Holme
- Institute of Health and Society, University of Oslo, Oslo, Norway
- Sorlandet Hospital, Department of Medicine, Kristiansand, Norway
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25
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Santos CEOD, Malaman D, Sanmartin IDA, Leão ABHS, Bombassaro IZ, Pereira-Lima JC. COLD SNARE POLYPECTOMY: A SAFE PROCEDURE FOR REMOVING SMALL NON-PEDUNCULATED COLORECTAL LESIONS. ARQUIVOS DE GASTROENTEROLOGIA 2023; 60:470-477. [PMID: 38018552 DOI: 10.1590/s0004-2803.23042023-115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Accepted: 09/10/2023] [Indexed: 11/30/2023]
Abstract
BACKGROUND Polypectomy is an important treatment option for preventing colorectal cancer. Incomplete polyp resection (IPR) is re-cognized as a risk factor for interval cancer. OBJECTIVE The primary objective was to evaluate the complete polyp resection (CPR) rate for cold snare polypectomy (CSP) in small non-pedunculated polyps and, secondarily, specimen retrieval and complication rates. METHODS We prospectively evaluated 479 polyps <10 mm removed by CSP in 276 patients by an inexperienced endoscopist. RESULTS A total of 476 polyps (99.4%) were resected en bloc. A negative margin (classified as CPR) was observed in 435 polyps (90.8%). An unclear or positive margin (classified as IPR) was observed in 43 cases (9.0%) and 1 case (0.2%), respectively, for an overall IPR rate of 9.2% (44/479). The IPR rate was 12.2% in the first half of cases and 5.9% in the second half (P=0.02). Dividing into tertiles, the IPR rate was 15.0% in the first tertile, 6.9% in the second tertile, and 5.7% in the third tertile (P=0.01). Dividing into quartiles, the IPR rate was 15.8% in the first quartile and 5.9% in the fourth quartile (P=0.03). The IPR rate was 6.3% for type 0-IIa lesions and 14.1% for type 0-Is lesions (P=0.01). For serrated and adenomatous lesions, the IPR rate was 9.2%. Specimen retrieval failed in 3.6% of cases. Immediate bleeding (>30 s) occurred in 1 case (0.2%), treated with argon plasma coagulation. No delayed bleeding or perforation occurred. CONCLUSION CSP is a safe technique that provides good results for the resection of small non-pedunculated polyps, with a short learning curve.
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Affiliation(s)
- Carlos Eduardo Oliveira Dos Santos
- Hospital Santa Casa de Caridade, Serviço de Endoscopia, Bagé, RS, Brasil
- Pontifícia Universidade Católica do Rio Grande do Sul, Departamento de Endoscopia, Porto Alegre, RS, Brasil
| | - Daniele Malaman
- Hospital Santa Casa de Caridade, Serviço de Endoscopia, Bagé, RS, Brasil
| | | | - Ari Ben-Hur Stefani Leão
- Pontifícia Universidade Católica do Rio Grande do Sul, Departamento de Endoscopia, Porto Alegre, RS, Brasil
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26
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Jiao TX, Hu Y, Guo SB. Clinical value of sigmoid colon water exchange colonoscopy: a prospective randomized clinical trial. Sci Rep 2023; 13:13704. [PMID: 37608083 PMCID: PMC10444785 DOI: 10.1038/s41598-023-40706-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Accepted: 08/16/2023] [Indexed: 08/24/2023] Open
Abstract
This prospective randomized controlled trial investigated the clinical value of sigmoid colon water exchange (SWE) colonoscopy by comparing it with air insufflation (AI) colonoscopy in terms of the patient's pain score, insertion time, and screening quality. Consecutive patients who underwent colonoscopy without sedation were randomized into an AI group (n = 267) or an SWE group (n = 255). Patient characteristics, history of abdominal or pelvic surgery, maximum pain score, insertion time, cecal intubation rate, polyp detection rate, and the need for maneuvers were recorded. There was no significant between-group difference in insertion time, cecal intubation rate, assisted maneuvers (abdominal pressure, changing patients' position), or polyp detection rate (P > 0.05). The mean maximum pain score was significantly lower in the SWE group than in the AI group. (3.57 ± 2.01 vs. 4.69 ± 1.83, P < 0.001). For patients with a history of abdominal or pelvic surgery and those who were overweight (body mass index > 24), the maximum pain scores were lower in the SWE group than in the AI group (3.67 ± 1.95 vs. 4.88 ± 1.80, P < 0.001; 3.40 ± 1.96 vs. 4.79 ± 1.97, P < 0.001, respectively). SWE colonoscopy can significantly reduce abdominal pain with non-inferior screening quality and does not increase insertion time.Trial registration number: ChiCTR2200059057 (date April 23, 2022).
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Affiliation(s)
- Tian-Xiao Jiao
- Department of Gastroenterology, The First Affiliated Hospital of Dalian Medical University, 222 Zhongshan Road, Dalian, 116011, Liaoning Province, People's Republic of China
- Department of Gastroenterology, Dalian Friendship Hospital, Dalian, 116011, Liaoning, People's Republic of China
| | - Yang Hu
- Department of Gastroenterology, The First Affiliated Hospital of Dalian Medical University, 222 Zhongshan Road, Dalian, 116011, Liaoning Province, People's Republic of China
| | - Shi-Bin Guo
- Department of Gastroenterology, The First Affiliated Hospital of Dalian Medical University, 222 Zhongshan Road, Dalian, 116011, Liaoning Province, People's Republic of China.
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Van J, Alsayid M, Ma K, Vemulapalli K, Rex D, Melson J. Impact of Cold Snare vs Cold Forceps Resection of Diminutive Adenomas on Segmental Incomplete Resection Rate. Am J Gastroenterol 2023; 118:1410-1418. [PMID: 37040556 DOI: 10.14309/ajg.0000000000002289] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Accepted: 03/27/2023] [Indexed: 04/13/2023]
Abstract
INTRODUCTION Polypectomy technique, for diminutive lesion resection, is variable among colonoscopists using either cold snare polypectomy (CSP) or cold forceps polypectomy (CFP). While it is well described that CSP is a preferred technique to resect small lesions, there is little data evaluating the impact resection techniques have on metachronous adenoma burden. The aim of this study was to evaluate the rate of incomplete resection attributable to CSP and CFP of diminutive adenomas. METHODS This is a 2-center retrospective cohort study evaluating the segmental incomplete resection rate (S-IRR) of diminutive tubular adenomas (TA). S-IRR was calculated by subtracting the segmental metachronous adenoma rate in a specific colonic segment without adenoma from segments with adenoma on index colonoscopy. The primary outcome was the S-IRR of diminutive TA resected by CSP or CFP on index colonoscopy. RESULTS A total of 1,504 patients were included in the analysis: 1,235 with TA <6 mm and 269 with TA 6-9 mm as the most advanced lesion. The S-IRR in a segment that had a <6-mm TA incompletely resected by CFP on index colonoscopy was 13%. The S-IRR in a segment that had a <6-mm TA incompletely resected by CSP was 0%. Among 12 included colonoscopists, the range of overall S-IRR was 1.1%-24.4% with an average S-IRR of 10.3%. DISCUSSION S-IRR was 13% higher with CFP resection of diminutive TA than with CSP. A proposed S-IRR metric of <5% is a target goal for all diminutive polyp resection because 3/12 colonoscopists achieved this low rate. S-IRR can be used as a methodology to compare and quantify the difference in segmental metachronous adenoma burden across various polypectomy removal methods.
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Affiliation(s)
- Jeremy Van
- Division of Digestive Diseases and Nutrition, Rush University Medical Center, Chicago, Illinois, USA
| | - Muhammad Alsayid
- Division of Digestive Diseases and Nutrition, Rush University Medical Center, Chicago, Illinois, USA
| | - Karen Ma
- Division of Digestive Diseases and Nutrition, Rush University Medical Center, Chicago, Illinois, USA
| | - Krishna Vemulapalli
- Division of Gastroenterology/Hepatology, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Douglas Rex
- Division of Gastroenterology/Hepatology, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Joshua Melson
- Division of Gastroenterology, Department of Internal Medicine, University of Arizona Cancer Center, Banner University Medical Center, Tucson, Arizona, USA
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Nehme F, Coronel E, Barringer DA, Romero LG, Shafi MA, Ross WA, Ge PS. Performance and attitudes toward real-time computer-aided polyp detection during colonoscopy in a large tertiary referral center in the United States. Gastrointest Endosc 2023; 98:100-109.e6. [PMID: 36801459 DOI: 10.1016/j.gie.2023.02.016] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 02/05/2023] [Accepted: 02/10/2023] [Indexed: 02/23/2023]
Abstract
BACKGROUND AND AIMS Computer-aided detection (CADe) has been shown to improve polyp detection in clinical trials. Limited data exist on the impact, utilization, and attitudes toward artificial intelligence (AI)-assisted colonoscopy in daily clinical practice. We aimed to evaluate the effectiveness of the first U.S. Food and Drug Administration-approved CADe device for polyp detection in the United States and the attitudes toward its implementation. METHODS We performed a retrospective analysis of a prospectively maintained database of patients undergoing colonoscopy at a tertiary center in the United States before and after a real-time CADe system was made available. The decision to activate the CADe system was at the discretion of the endoscopist. An anonymous survey was circulated among endoscopy physicians and staff at the beginning and conclusion of the study period regarding their attitudes toward AI-assisted colonoscopy. RESULTS CADe was activated in 52.1% of cases. Compared with historical control subjects, there was no statistically significant difference in adenomas detected per colonoscopy (1.08 vs 1.04, P = .65), even after excluding diagnostic and therapeutic indications and cases where CADe was not activated (1.27 vs 1.17, P = .45). In addition, there was no statistically significant difference in adenoma detection rate (ADR), median procedure, and withdrawal times. Survey results demonstrated mixed attitudes toward AI-assisted colonoscopy, of which main concerns were high number of false-positive signals (82.4%), high level of distraction (58.8%), and impression it prolonged procedure time (47.1%). CONCLUSIONS CADe did not improve adenoma detection in daily practice among endoscopists with high baseline ADRs. Despite its availability, AI-assisted colonoscopy was only activated in half of the cases, and multiple concerns were raised by staff and endoscopists. Future studies will help elucidate the patients and endoscopists that would benefit most from AI-assisted colonoscopy.
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Affiliation(s)
- Fredy Nehme
- Department of Gastroenterology, Hepatology and Nutrition, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Emmanuel Coronel
- Department of Gastroenterology, Hepatology and Nutrition, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Denise A Barringer
- Department of Gastroenterology, Hepatology and Nutrition, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Laura G Romero
- Department of Gastroenterology, Hepatology and Nutrition, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Mehnaz A Shafi
- Department of Gastroenterology, Hepatology and Nutrition, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - William A Ross
- Department of Gastroenterology, Hepatology and Nutrition, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Phillip S Ge
- Department of Gastroenterology, Hepatology and Nutrition, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
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29
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Ulrich JD, Rechberger P, Bachmann J, Herner A, V Figura G, Lahmer T, Phillip V, Mayr U, Haller B, Jesinghaus M, Schmid RM, Abdelhafez M, Schlag C. Efficacy and Safety of Cold Snare Polypectomy of Colorectal Polyps 10-15 mm with a Hybrid Snare: A Prospective Observational Pilot Study. Digestion 2023; 104:391-399. [PMID: 37331350 DOI: 10.1159/000530642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Accepted: 04/03/2023] [Indexed: 06/20/2023]
Abstract
INTRODUCTION Cold snare polypectomy (CSP) is a safe and effective procedure for small colorectal polyps ≤9 mm. There are only limited data regarding CSP of larger neoplastic lesions. This study evaluated the efficacy and safety of CSP for polyps between 10 and 15 mm in size. METHODS In this prospective single-arm observational pilot study, patients with a least one polyp 10-15 mm were included. These polyps were preferably removed by CSP using a dedicated hybrid snare. The primary outcome was the histological complete resection rate (CRR) determined by pathologically negative margins of the specimen and no neoplastic tissue obtained from biopsies of the resection site margin. Secondary outcomes were en bloc resection rate, failure of CSP, and incidence of adverse events. RESULTS A total of 61 neoplastic polyps were removed from 39 patients. Overall CRR was 80.3% (49/61). CSP was feasible in 78.7% (48/61) of polyps and the CRR in this group was 85.4% (41/48). When CSP failed (13/61; 21.3%), lesions were successfully resected by immediate HSP using the same snare with a CRR of 61.5% (8/13) in this group. One patient presented delayed hemorrhage after HSP of a polyp but successful hemostasis was achieved with two hemoclips. No other adverse events occurred. No recurrence was seen on follow-up colonoscopy in cases with incomplete resected polyps. CONCLUSION CSP seems to be efficient and safe in removing colorectal polyps up to 15 mm. A hybrid snare seems to be particularly advantageous for these polyps as it allows immediate conversion to HSP if CSP might fail in larger polyps. This trial is registered at ClinicalTrials.gov (NCT04464837).
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Affiliation(s)
- Jörg D Ulrich
- Department of Internal Medicine II, Klinikum rechts der Isar, Technische Universität München, Munich, Germany,
| | - Paul Rechberger
- Department of Internal Medicine II, Klinikum rechts der Isar, Technische Universität München, Munich, Germany
| | - Jeannine Bachmann
- Department of Surgery, Klinikum rechts der Isar, Technische Universität München, Munich, Germany
| | - Alexander Herner
- Department for Gastroenterology and Hepatology, Universitätsspital Zürich, Zurich, Switzerland
| | - Guido V Figura
- Private Practice for Gastroenterology and Endoscopy, Munich, Germany
| | - Tobias Lahmer
- Department of Internal Medicine II, Klinikum rechts der Isar, Technische Universität München, Munich, Germany
| | - Veit Phillip
- Department of Internal Medicine II, Klinikum rechts der Isar, Technische Universität München, Munich, Germany
| | - Ulrich Mayr
- Department of Internal Medicine II, Klinikum rechts der Isar, Technische Universität München, Munich, Germany
| | - Bernhard Haller
- Institute of AI and Informatics in Medicine, School of Medicine, Technische Universität München, Munich, Germany
| | - Moritz Jesinghaus
- Institute of Pathology, Philipps-Universität Marburg, Marburg, Germany
| | - Roland M Schmid
- Department of Internal Medicine II, Klinikum rechts der Isar, Technische Universität München, Munich, Germany
| | - Mohamed Abdelhafez
- Department of Internal Medicine II, Klinikum rechts der Isar, Technische Universität München, Munich, Germany
| | - Christoph Schlag
- Department for Gastroenterology and Hepatology, Universitätsspital Zürich, Zurich, Switzerland
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Tate DJ, Argenziano ME, Anderson J, Bhandari P, Boškoski I, Bugajski M, Desomer L, Heitman SJ, Kashida H, Kriazhov V, Lee RRT, Lyutakov I, Pimentel-Nunes P, Rivero-Sánchez L, Thomas-Gibson S, Thorlacius H, Bourke MJ, Tham TC, Bisschops R. Curriculum for training in endoscopic mucosal resection in the colon: European Society of Gastrointestinal Endoscopy (ESGE) Position Statement. Endoscopy 2023. [PMID: 37285908 DOI: 10.1055/a-2077-0497] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Endoscopic mucosal resection (EMR) is the standard of care for the complete removal of large (≥ 10 mm) nonpedunculated colorectal polyps (LNPCPs). Increased detection of LNPCPs owing to screening colonoscopy, plus high observed rates of incomplete resection and need for surgery call for a standardized approach to training in EMR. 1 : Trainees in EMR should have achieved basic competence in diagnostic colonoscopy, < 10-mm polypectomy, pedunculated polypectomy, and common methods of gastrointestinal endoscopic hemostasis. The role of formal training courses is emphasized. Training may then commence in vivo under the direct supervision of a trainer. 2 : Endoscopy units training endoscopists in EMR should have specific processes in place to support and facilitate training. 3: A trained EMR practitioner should have mastered theoretical knowledge including how to assess an LNPCP for risk of submucosal invasion, how to interpret the potential difficulty of a particular EMR procedure, how to decide whether to remove a particular LNPCP en bloc or piecemeal, whether the risks of electrosurgical energy can be avoided for a particular LNPCP, the different devices required for EMR, management of adverse events, and interpretation of reports provided by histopathologists. 4: Trained EMR practitioners should be familiar with the patient consent process for EMR. 5: The development of endoscopic non-technical skills (ENTS) and team interaction are important for trainees in EMR. 6: Differences in recommended technique exist between EMR performed with and without electrosurgical energy. Common to both is a standardized technique based upon dynamic injection, controlled and precise snare placement, safety checks prior to the application of tissue transection (cold snare) or electrosurgical energy (hot snare), and interpretation of the post-EMR resection defect. 7: A trained EMR practitioner must be able to manage adverse events associated with EMR including intraprocedural bleeding and perforation, and post-procedural bleeding. Delayed perforation should be avoided by correct interpretation of the post-EMR defect and treatment of deep mural injury. 8: A trained EMR practitioner must be able to communicate EMR procedural findings to patients and provide them with a plan in case of adverse events after discharge and a follow-up plan. 9: A trained EMR practitioner must be able to detect and interrogate a post-endoscopic resection scar for residual or recurrent adenoma and apply treatment if necessary. 10: Prior to independent practice, a minimum of 30 EMR procedures should be performed, culminating in a trainer-guided assessment of competency using a validated assessment tool, taking account of procedural difficulty (e. g. using the SMSA polyp score). 11: Trained practitioners should log their key performance indicators (KPIs) of polypectomy during independent practice. A guide for target KPIs is provided in this document.
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Affiliation(s)
- David J Tate
- Department of Gastroenterology and Hepatology, University Hospital of Ghent, Ghent, Belgium
- Faculty of Medicine, University of Ghent, Ghent, Belgium
| | - Maria Eva Argenziano
- Clinic of Gastroenterology, Hepatology and Emergency Digestive Endoscopy, Università Politecnica delle Marche, Ancona, Italy
| | - John Anderson
- Cheltenham General Hospital, Gloucestershire Hospitals Foundation Trust, Cheltenham, UK
| | - Pradeep Bhandari
- Endoscopy Department, Portsmouth Hospitals University NHS Trust, Portsmouth, UK
| | - Ivo Boškoski
- Digestive Endoscopy Unit, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Rome, Italy
| | - Marek Bugajski
- Department of Gastroenterology, Luxmed Oncology, Warsaw, Poland
| | - Lobke Desomer
- AZ Delta Roeselare, University Hospital Ghent, Ghent, Belgium
| | - Steven J Heitman
- Division of Gastroenterology and Hepatology, Departments of Medicine and Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, Canada
| | - Hiroshi Kashida
- Department of Gastroenterology and Hepatology, Kindai University, Faculty of Medicine, Osaka, Japan
| | - Vladimir Kriazhov
- Endoscopy Department, Nizhny Novgorod Regional Clinical Oncology Center, Nizhny Novgorod, Russia Federation
| | - Ralph R T Lee
- The Ottawa Hospital - Civic Campus, University of Ottawa, Ottawa, Canada
| | - Ivan Lyutakov
- University Hospital Tsaritsa Yoanna-ISUL, Medical University Sofia, Sofia, Bulgaria
| | - Pedro Pimentel-Nunes
- Gastroenterology Department, Portuguese Oncology Institute of Porto, Porto, Portugal
- Center for Research in Health Technologies and Information Systems (CINTESIS), Faculty of Medicine, University of Porto, Porto, Portugal
- Surgery and Physiology Department, Faculty of Medicine of the University of Porto, Porto, Portugal
| | - Liseth Rivero-Sánchez
- Gastroenterology Department, Hospital Clínic de Barcelona, Barcelona, Spain
- Centro de Investigacion Biomedica en Red de Enfermedades Hepaticas y Digestivas (CIBERehd), Institut d'Investigacions Biomediques August Pi i Sunyer (IDIBAPS), Universitat de Barcelona, Barcelona, Spain
| | | | | | - Michael J Bourke
- Department of Gastroenterology, Westmead Hospital, Sydney, Australia
- University of Sydney, Sydney, Australia
| | - Tony C Tham
- Division of Gastroenterology, Ulster Hospital, Dundonald, Belfast, Northern Ireland
| | - Raf Bisschops
- Department of Gastroenterology and Hepatology, University Hospitals Leuven, TARGID, KU Leuven, Leuven, Belgium
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Barua I, Misawa M, Glissen Brown JR, Walradt T, Kudo SE, Sheth SG, Nee J, Iturrino J, Mukherjee R, Cheney CP, Sawhney MS, Pleskow DK, Mori K, Løberg M, Kalager M, Wieszczy P, Bretthauer M, Berzin TM, Mori Y. Speedometer for withdrawal time monitoring during colonoscopy: a clinical implementation trial. Scand J Gastroenterol 2023; 58:664-670. [PMID: 36519564 DOI: 10.1080/00365521.2022.2154616] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/09/2022] [Revised: 11/21/2022] [Accepted: 11/30/2022] [Indexed: 12/31/2022]
Abstract
OBJECTIVES Meticulous inspection of the mucosa during colonoscopy, represents a lengthier withdrawal time, but has been shown to increase adenoma detection rate (ADR). We investigated if artificial intelligence-aided speed monitoring can improve suboptimal withdrawal time. METHODS We evaluated the implementation of a computer-aided speed monitoring device during colonoscopy at a large academic endoscopy center. After informed consent, patients ≥18 years undergoing colonoscopy between 5 March and 29 April 2021 were examined without the use of the speedometer, and with the speedometer between 29 April and 30 June 2021. All colonoscopies were recorded, and withdrawal time was assessed based on the recordings in a blinded fashion. We compared mean withdrawal time, percentage of withdrawal time ≥6 min, and ADR with and without the speedometer. RESULTS One hundred sixty-six patients in each group were eligible for analyses. Mean withdrawal time was 9 min and 6.6 s (95% CI: 8 min and 34.8 s to 9 min and 39 s) without the use of the speedometer, and 9 min and 9 s (95% CI: 8 min and 45 s to 9 min and 33.6 s) with the speedometer; difference 2.3 s (95% CI: -42.3-37.7, p = 0.91). The ADRs were 45.2% (95% CI: 37.6-52.8) without the speedometer as compared to 45.8% (95% CI: 38.2-53.4) with the speedometer (p = 0.91). The proportion of colonoscopies with withdrawal time ≥6 min without the speedometer was 85.5% (95% CI: 80.2-90.9) versus 86.7% (95% CI: 81.6-91.9) with the speedometer (p = 0.75). CONCLUSIONS Use of speed monitoring during withdrawal did not increase withdrawal time or ADR in colonoscopy. CLINICALTRIALS.GOV IDENTIFIER NCT04710251.
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Affiliation(s)
- Ishita Barua
- Clinical Effectiveness Research Group, Institute of Health and Society, University of Oslo, Oslo, Norway
- Clinical Effectiveness Research Group, Department of Transplantation Medicine, Oslo University Hospital, Oslo, Norway
| | - Masashi Misawa
- Digestive Disease Center, Showa University Northern Yokohama Hospital, Yokohama, Japan
| | | | - Trent Walradt
- Center for Advanced Endoscopy, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA, USA
| | - Shin-Ei Kudo
- Digestive Disease Center, Showa University Northern Yokohama Hospital, Yokohama, Japan
| | - Sunil G Sheth
- Division of Gastroenterology, Beth Israel Deaconess Medical Center, Boston, MA, USA
| | - Judy Nee
- Division of Gastroenterology, Beth Israel Deaconess Medical Center, Boston, MA, USA
| | - Johanna Iturrino
- Division of Gastroenterology, Beth Israel Deaconess Medical Center, Boston, MA, USA
| | - Rupa Mukherjee
- Division of Gastroenterology, Beth Israel Deaconess Medical Center, Boston, MA, USA
| | - Catherine P Cheney
- Center for Advanced Endoscopy, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA, USA
| | - Mandeep S Sawhney
- Center for Advanced Endoscopy, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA, USA
| | - Douglas K Pleskow
- Center for Advanced Endoscopy, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA, USA
| | - Kensaku Mori
- Graduate School of Informatics, Nagoya University, Nagoya, Japan
| | - Magnus Løberg
- Clinical Effectiveness Research Group, Institute of Health and Society, University of Oslo, Oslo, Norway
- Clinical Effectiveness Research Group, Department of Transplantation Medicine, Oslo University Hospital, Oslo, Norway
| | - Mette Kalager
- Clinical Effectiveness Research Group, Institute of Health and Society, University of Oslo, Oslo, Norway
- Clinical Effectiveness Research Group, Department of Transplantation Medicine, Oslo University Hospital, Oslo, Norway
| | - Paulina Wieszczy
- Clinical Effectiveness Research Group, Institute of Health and Society, University of Oslo, Oslo, Norway
- Department of Gastroenterology, Hepatology and Clinical Oncology, Centre of Postgraduate Medical Education, Warsaw, Poland
| | - Michael Bretthauer
- Clinical Effectiveness Research Group, Institute of Health and Society, University of Oslo, Oslo, Norway
- Clinical Effectiveness Research Group, Department of Transplantation Medicine, Oslo University Hospital, Oslo, Norway
| | - Tyler M Berzin
- Center for Advanced Endoscopy, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA, USA
| | - Yuichi Mori
- Clinical Effectiveness Research Group, Institute of Health and Society, University of Oslo, Oslo, Norway
- Clinical Effectiveness Research Group, Department of Transplantation Medicine, Oslo University Hospital, Oslo, Norway
- Digestive Disease Center, Showa University Northern Yokohama Hospital, Yokohama, Japan
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Mansour NM. Artificial Intelligence in Colonoscopy. Curr Gastroenterol Rep 2023; 25:122-129. [PMID: 37129831 DOI: 10.1007/s11894-023-00872-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/03/2023] [Indexed: 05/03/2023]
Abstract
PURPOSE OF REVIEW Artificial intelligence (AI) is a rapidly growing field in gastrointestinal endoscopy, and its potential applications are virtually endless, with studies demonstrating use of AI for early gastric cancer, inflammatory bowel disease, Barrett's esophagus, capsule endoscopy, as well as other areas in gastroenterology. Much of the early studies and applications of AI in gastroenterology have revolved around colonoscopy, particularly with regards to real-time polyp detection and characterization. This review will cover much of the existing data on computer-aided detection (CADe), computer-aided diagnosis (CADx), and briefly discuss some other interesting applications of AI for colonoscopy, while also considering some of the challenges and limitations that exist around the use of AI for colonoscopy. RECENT FINDINGS Multiple randomized controlled trials have now been published which show a statistically significant improvement when using AI to improve adenoma detection and reduce adenoma miss rates during colonoscopy. There is also a growing pool of literature showing that AI can be helpful for characterizing/diagnosing colorectal polyps in real time. AI has also shown promise in other areas of colonoscopy, including polyp sizing and automated measurement and monitoring of quality metrics during colonoscopy. AI is a promising tool that has the ability to shape the future of gastrointestinal endoscopy, with much of the early data showing significant benefits to use of AI during colonoscopy. However, there remain several challenges that may delay or hamper the widespread use of AI in the field.
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Affiliation(s)
- Nabil M Mansour
- Section of Gastroenterology and Hepatology, Baylor College of Medicine, 7200 Cambridge St., Suite 8B, Houston, TX, 77030, USA.
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33
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Motchum L, Djinbachian R, Rahme E, Taghiakbari M, Bouchard S, Bouin M, Sidani S, Deslandres É, Takla M, Frija-Gruman NM, Barkun A, von Renteln D. Incomplete resection rates of 4- to 20-mm non-pedunculated colorectal polyps when using wide-field cold snare resection with routine submucosal injection. Endosc Int Open 2023; 11:E480-E489. [PMID: 37206693 PMCID: PMC10191736 DOI: 10.1055/a-2029-2392] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Accepted: 01/31/2023] [Indexed: 05/21/2023] Open
Abstract
Background and study aims Incomplete resection of 4- to 20-mm colorectal polyps occur frequently (> 10 %), putting patients at risk for post-colonoscopy colorectal cancer. We hypothesized that routine use of wide-field cold snare resection with submucosal injection (CSP-SI) might reduce incomplete resection rates (IRRs). Patients and methods Patients aged 45 to 80 years undergoing elective colonoscopies were enrolled in a prospective clinical study. All 4- to 20-mm non-pedunculated polyps were resected using CSP-SI. Post-polypectomy margin biopsies were obtained to determine IRRs through histopathology assessment. The primary outcome was IRR, defined as remnant polyp tissue found on margin biopsies. Secondary outcomes included technical success and complication rates. Results A total of 429 patients (median age 65 years, 47.1 % female, adenoma detection rate 40 %) with 204 non-pedunculated colorectal polyps 4 to 20 mm removed using CSP-SI were included in the final analysis. CSP-SI was technical successful in 97.5 % (199/204) of cases (5 conversion to hot snare polypectomy). IRR for CSP-SI was 3.8 % (7/183) (95 % confidence interval [CI] 2.7 %-5.5 %). IRR was 1.6 % (2/129), 16 % (4/25), and 3.4 % (1/29) for adenomas, serrated lesions, and hyperplastic polyps respectively. IRR was 2.3 % (2/87), 6.3 % (4/64), 4.0 % (6/151), and 3.1 % (1/32) for polyps 4 to 5 mm, 6 to 9 mm, < 10 mm, and 10 to 20 mm, respectively. There were no CSP-SI-related serious adverse events. Conclusions Use of CSP-SI results in lower IRRs compared to what has previously been reported in the literature for hot or cold snare polypectomy when not using wide-field cold snare resection with submucosal injection. CSP-SI showed an excellent safety and efficacy profile, however comparative studies to CSP without SI are required to confirm these results.
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Affiliation(s)
- Leslie Motchum
- Montreal University Hospital Research Center (CRCHUM), Montreal, Canada
- Faculty of Medicine of Montreal University, Montreal, Canada
| | - Roupen Djinbachian
- Montreal University Hospital Research Center (CRCHUM), Montreal, Canada
- Division of Gastroenterology, Montreal University Hospital Center (CHUM), Montreal, Canada
| | - Elham Rahme
- Department of Medicine, Division of Clinical Epidemiology, McGill University, Montreal, Canada
- Centre for Outcomes Research and Evaluation, Research Institute of the McGill University Health Centre, Montreal, Canada
| | - Mahsa Taghiakbari
- Montreal University Hospital Research Center (CRCHUM), Montreal, Canada
- Faculty of Medicine of Montreal University, Montreal, Canada
| | - Simon Bouchard
- Montreal University Hospital Research Center (CRCHUM), Montreal, Canada
- Division of Gastroenterology, Montreal University Hospital Center (CHUM), Montreal, Canada
| | - Mickaël Bouin
- Montreal University Hospital Research Center (CRCHUM), Montreal, Canada
- Division of Gastroenterology, Montreal University Hospital Center (CHUM), Montreal, Canada
| | - Sacha Sidani
- Montreal University Hospital Research Center (CRCHUM), Montreal, Canada
- Division of Gastroenterology, Montreal University Hospital Center (CHUM), Montreal, Canada
| | - Érik Deslandres
- Montreal University Hospital Research Center (CRCHUM), Montreal, Canada
- Division of Gastroenterology, Montreal University Hospital Center (CHUM), Montreal, Canada
| | - Mark Takla
- Montreal University Hospital Research Center (CRCHUM), Montreal, Canada
- Faculty of Medicine of Montreal University, Montreal, Canada
| | | | - Alan Barkun
- Division of Gastroenterology, McGill University Health Center, McGill University, Montreal, Canada
- Division of Clinical Epidemiology, McGill University Health Center, McGill University, Montreal, Canada
| | - Daniel von Renteln
- Montreal University Hospital Research Center (CRCHUM), Montreal, Canada
- Division of Gastroenterology, Montreal University Hospital Center (CHUM), Montreal, Canada
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Djinbachian R, Lafontaine ML, Dufault T, Medawar E, Boivin M, Bouin M, von Renteln D. Rates of synchronous advanced neoplasia and colorectal cancer in patients with colonic serrated lesions. Surg Endosc 2023:10.1007/s00464-023-09974-z. [PMID: 36944739 DOI: 10.1007/s00464-023-09974-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2022] [Accepted: 02/21/2023] [Indexed: 03/23/2023]
Abstract
BACKGROUND AND AIMS Serrated lesions (SL) have been associated with significant risks of developing colorectal cancer (CRC). Data on synchronous findings after SL detection during colonoscopy is limited. Study aim was to evaluate the rate of synchronous advanced neoplasia (S-AN) and synchronous CRC (S-CRC) in colonoscopies where SLs were detected. METHODS We conducted a retrospective study of screening aged patients 45-74year with colorectal SL (sessile serrated polyp [SSP] or traditional serrated adenoma [TSA]) detected during an elective colonoscopy. Primary outcome was risk of S-AN in patients with SL. Secondary outcomes included risk of S-AN or S-CRC stratified by SL characteristics. RESULTS The study included 1262 patients with 1649 SLs (1214 with SSPs and 48 with TSAs). 47.2% were female and 22.9% of exams were screening colonoscopies, 48.2% surveillance, 28.9% diagnostic. The overall rates of S-AN and S-CRC were 15.1% and 1.3%, respectively. Presence of SSPs ≥ 10 mm was associated with higher rates of S-AN, (18.1 vs. 12.2%, Odds-Ratio [OR] = 1.61 [95% Confidence Interval [CI] 1.17-2.23], p = 0.004). SSP dysplasia was predictive of S-AN, (30.3 vs 14.1%, OR = 2.68 [95%CI 1.24-5.78], p = 0.012) but not S-CRC. SSP number (≥ 3) and location (proximal) were not predictors of S-AN or S-CRC. CONCLUSION Patients with SLs are at high-risk of S-AN and S-CRC. Findings of SSPs ≥ 10 mm and SSP dysplasia are associated with high-risk of S-AN. Endoscopists should exercise heightened vigilance for synchronous findings when SLs are detected, especially SSPs ≥ 10 mm or when bowel preparation is suboptimal. Studies contrasting synchronous risk of other polyp types are needed to confirm these results.
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Affiliation(s)
- Roupen Djinbachian
- Division of Gastroenterology, Department of Medicine, Montreal University Hospital Center (CHUM) and Montreal University Hospital Research Center (CRCHUM), Montreal, Canada
| | | | - Talia Dufault
- Faculty of Medicine, University of Montreal, Montreal, Canada
| | - Edgard Medawar
- Faculty of Medicine, University of Montreal, Montreal, Canada
| | - Michel Boivin
- Division of Gastroenterology, Department of Medicine, Montreal University Hospital Center (CHUM) and Montreal University Hospital Research Center (CRCHUM), Montreal, Canada
| | - Mickael Bouin
- Division of Gastroenterology, Department of Medicine, Montreal University Hospital Center (CHUM) and Montreal University Hospital Research Center (CRCHUM), Montreal, Canada
| | - Daniel von Renteln
- Division of Gastroenterology, Department of Medicine, Montreal University Hospital Center (CHUM) and Montreal University Hospital Research Center (CRCHUM), Montreal, Canada.
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Artificial Intelligence-Aided Endoscopy and Colorectal Cancer Screening. Diagnostics (Basel) 2023; 13:diagnostics13061102. [PMID: 36980409 PMCID: PMC10047293 DOI: 10.3390/diagnostics13061102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Revised: 02/19/2023] [Accepted: 03/11/2023] [Indexed: 03/17/2023] Open
Abstract
Colorectal cancer (CRC) is the third most common cancer worldwide, with the highest incidence reported in high-income countries. However, because of the slow progression of neoplastic precursors, along with the opportunity for their endoscopic detection and resection, a well-designed endoscopic screening program is expected to strongly decrease colorectal cancer incidence and mortality. In this regard, quality of colonoscopy has been clearly related with the risk of post-colonoscopy colorectal cancer. Recently, the development of artificial intelligence (AI) applications in the medical field has been growing in interest. Through machine learning processes, and, more recently, deep learning, if a very high numbers of learning samples are available, AI systems may automatically extract specific features from endoscopic images/videos without human intervention, helping the endoscopists in different aspects of their daily practice. The aim of this review is to summarize the current knowledge on AI-aided endoscopy, and to outline its potential role in colorectal cancer prevention.
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36
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Extracellular Nicotinamide Phosphoribosyltransferase as a Surrogate Marker of Prominent Malignant Potential in Colonic Polyps: A 2-Year Prospective Study. Cancers (Basel) 2023; 15:cancers15061702. [PMID: 36980589 PMCID: PMC10046025 DOI: 10.3390/cancers15061702] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Revised: 03/03/2023] [Accepted: 03/08/2023] [Indexed: 03/14/2023] Open
Abstract
Background/aims: The implications of extracellular nicotinamide phosphoribosyltransferase (eNAMPT), a cancer metabokine, in colonic polyps remain uncertain. Methods: A 2-year prospective cohort study of patients who underwent colonoscopy was conducted. Biochemical parameters and serum eNAMPT levels were analyzed at baseline and every 24 weeks postpolypectomy. NAMPT-associated single-nucleotide polymorphisms (SNPs), including rs61330082, rs2302559, rs10953502, and rs23058539, were assayed. Results: Of 532 patients, 80 (15%) had prominent malignant potential (PMP) in colonic polyps, including villous adenomas (n = 18, 3.3%), adenomas with high-grade dysplasia (n = 33, 6.2%), and adenocarcinomas (n = 29, 5.5%). Baseline associations were as follows: colonic polyp pathology (p < 0.001), total cholesterol (p = 0.019), and neutrophil-to-lymphocyte ratio (p = 0.023) with eNAMPT levels; and age (p < 0.001), polyp size (p < 0.001), and eNAMPT levels (p < 0.001) with polyp pathology. Higher baseline eNAMPT levels were noted in patients harboring polyps with PMP than in patients without PMP (p < 0.001), and baseline eNAMPT levels significantly predicted PMP (cutoff: >4.238 ng/mL, p < 0.001). Proportions of eNAMPT-positive glandular and stromal cells were higher in polyps with PMP than in polyps without PMP (64.55 ± 11.94 vs. 14.82 ± 11.45%, p = 0.025). eNAMPT levels decreased within 48 weeks postpolypectomy (p = 0.01) and remained stable afterward regardless of PMP until 96 weeks postpolypectomy. However, those with PMP had a higher degree of eNAMPT decline within 24 weeks (p = 0.046). All investigated SNPs were in linkage disequilibrium with each other but were not associated with eNAMPT levels. Conclusion: With a link to inflammation and lipid metabolism, along with its decreasing trend after polypectomy, serum eNAMPT may serve as a surrogate marker of PMP in colonic polyps. In situ probing of the NAMPT-associated pathway holds promise in attenuating PMP, as much of the eNAMPT likely originates from colonic polyps.
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Roshan A, Byrne MF. L’intelligence artificielle dans le dépistage du cancer colorectal. CMAJ 2023; 195:E282-E286. [PMID: 36810214 PMCID: PMC9943565 DOI: 10.1503/cmaj.220034-f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/23/2023] Open
Affiliation(s)
- Aishwarya Roshan
- Faculté de médecine (Roshan, Byrne), Université de la Colombie-Britannique; Division de gastroentérologie (Byrne), Hôpital général de Vancouver; Satisfai Health et coentreprise AI4GI (Byrne), Vancouver, C.-B
| | - Michael F Byrne
- Faculté de médecine (Roshan, Byrne), Université de la Colombie-Britannique; Division de gastroentérologie (Byrne), Hôpital général de Vancouver; Satisfai Health et coentreprise AI4GI (Byrne), Vancouver, C.-B.
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O'Sullivan T, Tate D, Sidhu M, Gupta S, Elhindi J, Byth K, Cronin O, Whitfield A, Craciun A, Singh R, Brown G, Raftopoulos S, Hourigan L, Moss A, Klein A, Heitman S, Williams S, Lee E, Burgess NG, Bourke MJ. The Surface Morphology of Large Nonpedunculated Colonic Polyps Predicts Synchronous Large Lesions. Clin Gastroenterol Hepatol 2023:S1542-3565(23)00101-5. [PMID: 36787836 DOI: 10.1016/j.cgh.2023.01.034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Revised: 01/26/2023] [Accepted: 01/27/2023] [Indexed: 02/16/2023]
Abstract
BACKGROUND & AIMS Large (≥20 mm) nonpedunculated colorectal polyps (LNPCPs) may have synchronous LNPCPs in up to 18% of cases. The nature of this relationship has not been investigated. We aimed to examine the relationship between individual LNPCP characteristics and synchronous colonic LNPCPs. METHODS Consecutive patients referred for resection of LNPCPs over 130 months until March 2022 were enrolled. Serrated lesions and mixed granularity LNPCPs were excluded from analysis. Patients with multiple LNPCPs resected were identified, and the largest was labelled as dominant. The primary outcome was the identification of individual lesion characteristics associated with the presence of synchronous LNPCPs. RESULTS There were 3149 of 3381 patients (93.1%) who had a single LNPCP. In 232 (6.9%) a synchronous lesion was detected. Solitary lesions had a median size of 35 mm with a predominant Paris 0-IIa morphology (42.9%) and right colon location (59.5%). In patients with ≥2 LNPCPs, the dominant lesion had a median size of 40 mm, Paris 0-IIa (47.6%) morphology, and right colon location (65.9%). In this group, 35.8% of dominant LNPCPs were non-granular compared with 18.7% in the solitary LNPCP cohort. Non-granular (NG)-LNPCPs were more likely to demonstrate synchronous disease, with left colon NG-LNPCPs demonstrating greater risk (odds ratio, 4.78; 95% confidence interval, 2.95-7.73) than right colon NG-LNPCPs (odds ratio, 1.99; 95% confidence interval, 1.39-2.86). CONCLUSIONS We found that 6.9% of LNPCPs have synchronous disease, with NG-LNPCPs demonstrating a greater than 4-fold increased risk. With post-colonoscopy interval cancers exceeding 5%, endoscopists must be cognizant of an individual's LNPCP phenotype when examining the colon at both index procedure and surveillance. CLINICALTRIALS gov, NCT01368289; NCT02000141; NCT02198729.
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Affiliation(s)
- Timothy O'Sullivan
- Department of Gastroenterology and Hepatology, Westmead Hospital, Sydney, New South Wales, Australia; Westmead Clinical School, University of Sydney, Sydney, New South Wales, Australia
| | - David Tate
- Department of Gastroenterology and Hepatology, Westmead Hospital, Sydney, New South Wales, Australia; Department of Gastroenterology and Hepatology, University Hospital of Ghent, Ghent, Belgium; University of Ghent, Ghent, Belgium
| | - Mayenaaz Sidhu
- Department of Gastroenterology and Hepatology, Westmead Hospital, Sydney, New South Wales, Australia; Westmead Clinical School, University of Sydney, Sydney, New South Wales, Australia
| | - Sunil Gupta
- Department of Gastroenterology and Hepatology, Westmead Hospital, Sydney, New South Wales, Australia; Westmead Clinical School, University of Sydney, Sydney, New South Wales, Australia
| | - James Elhindi
- WSLHD Research and Education Network, Westmead Hospital, Sydney, New South Wales, Australia
| | - Karen Byth
- National Health and Medical Research Council Clinical Trials Centre, University of Sydney, Sydney, New South Wales, Australia; WSLHD Research and Education Network, Westmead Hospital, Sydney, New South Wales, Australia
| | - Oliver Cronin
- Department of Gastroenterology and Hepatology, Westmead Hospital, Sydney, New South Wales, Australia; Westmead Clinical School, University of Sydney, Sydney, New South Wales, Australia
| | - Anthony Whitfield
- Department of Gastroenterology and Hepatology, Westmead Hospital, Sydney, New South Wales, Australia; Westmead Clinical School, University of Sydney, Sydney, New South Wales, Australia
| | - Ana Craciun
- Departamento de Gastrenterologia e Hepatologia, Centro Hospitalar Universitario Lisboa Norte, Lisbon, Portugal
| | - Rajvinder Singh
- Department of Gastroenterology and Hepatology, Lyell McEwan Hospital, Adelaide, South Australia, Australia
| | - Gregor Brown
- Department of Gastroenterology and Hepatology, The Alfred Hospital, Melbourne, VIC, Australia; Department of Gastroenterology and Hepatology, Epworth Hospital, Melbourne, VIC, Australia
| | - Spiro Raftopoulos
- Department of Gastroenterology, Sir Charles Gairdner Hospital, Perth, Australia
| | - Luke Hourigan
- Department of Gastroenterology and Hepatology, Princess Alexandra Hospital, Brisbane, Queensland, Australia; Department of Gastroenterology, Greenslopes Private Hospital, Gallipoli Medical Research Foundation, Brisbane, Queensland, Australia
| | - Alan Moss
- Department of Endoscopic Services, Western Health, Melbourne, Victoria, Australia
| | - Amir Klein
- Ambam Heath Care Campus, Technion Institute of Technology, Haifa, Israel; Rappaport Faculty of Medicine, Technion Institute of Technology, Haifa, Israel
| | - Steven Heitman
- Department of Community Health Sciences, University of Calgary, Calgary, AB, Canada; Forzani & MacPhail Colon Cancer Screening Centre, Alberta Health Services, Calgary, AB, Canada; Department of Medicine, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Stephen Williams
- Department of Gastroenterology and Hepatology, Westmead Hospital, Sydney, New South Wales, Australia
| | - Eric Lee
- Department of Gastroenterology and Hepatology, Westmead Hospital, Sydney, New South Wales, Australia
| | - Nicholas G Burgess
- Department of Gastroenterology and Hepatology, Westmead Hospital, Sydney, New South Wales, Australia; Westmead Clinical School, University of Sydney, Sydney, New South Wales, Australia
| | - Michael J Bourke
- Department of Gastroenterology and Hepatology, Westmead Hospital, Sydney, New South Wales, Australia; Westmead Clinical School, University of Sydney, Sydney, New South Wales, Australia.
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Oh CK, Cho YS, Lee SH, Lee BI. Anchoring endoscopic mucosal resection versus conventional endoscopic mucosal resection for large nonpedunculated colorectal polyps: a randomized controlled trial. Endoscopy 2023; 55:158-164. [PMID: 35750321 DOI: 10.1055/a-1884-7849] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND : Colorectal polyps > 10 mm in size are often incompletely resected. Anchoring-endoscopic mucosal resection (A-EMR) is the technique of making a small incision at the oral side of the polyp using a snare tip after submucosal injection to avoid slippage during ensnaring. This study was performed to evaluate whether A-EMR could increase the complete resection rate for large colorectal polyps compared with conventional endoscopic mucosal resection (C-EMR). METHODS : Polyps with sizes of 10-25 mm were randomly allocated to either the A-EMR or the C-EMR groups. RESULTS : 105 and 106 polyps were resected using A-EMR and C-EMR, respectively. In the intention-to-treat population, the complete resection rate was 89.5 % in the A-EMR group and 74.5 % in the C-EMR group (relative risk [RR] 1.20, 95 %CI 1.04 to 1.38; P = 0.01). The en bloc resection rates for the A-EMR and C-EMR groups were 92.4 % vs. 76.4 % (RR 1.21, 95 %CI 1.06 to 1.37; P = 0.005) and R0 resection rates were 77.1 % vs. 64.2 % (RR 1.18, 95 %CI 0.98 to 1.42; P = 0.07), respectively. The median (interquartile range [IQR]) total procedure time was 3.2 (2.6-4.1) minutes in the A-EMR group and 3.0 (2.2-4.6) minutes in the C-EMR group (median difference 0.2 minutes, 95 %CI -0.22 to 0.73; P = 0.25). There was one episode of delayed bleeding and one perforation in the C-EMR group. CONCLUSIONS : A-EMR was superior to C-EMR for the complete resection of large colorectal polyps. A-EMR can be considered one of the standard methods for the removal of colorectal polyps of 10 mm or more in size.
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Affiliation(s)
- Chang Kyo Oh
- Division of Gastroenterology, Department of Internal Medicine, Seoul St. Mary's Hospital, The Catholic University of Korea, Seoul, South Korea.,Division of Gastroenterology, Department of Internal Medicine, Kangnam Sacred Heart Hospital, Hallym University of Korea, Seoul, South Korea
| | - Young-Seok Cho
- Division of Gastroenterology, Department of Internal Medicine, Seoul St. Mary's Hospital, The Catholic University of Korea, Seoul, South Korea
| | - Sung Hak Lee
- Departments of Hospital Pathology, Seoul St. Mary's Hospital, The Catholic University of Korea, Seoul, South Korea
| | - Bo-In Lee
- Division of Gastroenterology, Department of Internal Medicine, Seoul St. Mary's Hospital, The Catholic University of Korea, Seoul, South Korea
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Hassan C, Piovani D, Spadaccini M, Parigi T, Khalaf K, Facciorusso A, Fugazza A, Rösch T, Bretthauer M, Mori Y, Sharma P, Rex DK, Bonovas S, Repici A. Variability in adenoma detection rate in control groups of randomized colonoscopy trials: a systematic review and meta-analysis. Gastrointest Endosc 2023; 97:212-225.e7. [PMID: 36243103 DOI: 10.1016/j.gie.2022.10.009] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Revised: 09/26/2022] [Accepted: 10/04/2022] [Indexed: 01/25/2023]
Abstract
BACKGROUND AND AIMS Adenoma detection rate (ADR) is still the main surrogate outcome parameter of screening colonoscopy, but most studies include mixed indications, and basic ADR is quite variable. We therefore looked at the control groups in randomized ADR trials using advanced imaging or mechanical methods to find out whether indications or other factors influence ADR levels. METHODS Patients in the control groups of randomized controlled trials (RCTs) on ADR increase using various methods were collected based on a systematic review; this control group had to use high-definition white-light endoscopy performed between 2008 and 2021. Random-effects meta-analysis was used to pool ADR in control groups and its 95% confidence interval (CI) according to clinical (indication and demographic), study setting (tandem/parallel, number of centers, sample size), and technical (type of intervention, withdrawal time) parameters. Interstudy heterogeneity was reported with the I2 statistic. Multivariable mixed-effects meta-regression was performed for potentially relevant variables. RESULTS From 80 studies, 25,304 patients in the respective control groups were included. ADR in control arms varied between 8.2% and 68.1% with a high degree of heterogeneity (I2 = 95.1%; random-effect pooled value, 37.5%; 95% CI, 34.6‒40.5). There was no difference in ADR levels between primary colonoscopy screening (12 RCTs, 15%) and mixed indications including screening/surveillance and diagnostic colonoscopy; however, fecal immunochemical testing as an indication for colonoscopy was an independent predictor of ADR (odds ratio [OR], 1.6; 95% CI, 1.1-2.4). Other well-known parameters were confirmed by our analysis such as age (OR, 1.038; 95% CI, 1.004-1.074), sex (male sex: OR, 1.02; 95% CI, 1.01-1.03), and withdrawal time (OR, 1.1; 95% CI, 1.0-1.1). The type of intervention (imaging vs mechanical) had no influence, but methodologic factors did: More recent year of publication and smaller sample size were associated with higher ADR. CONCLUSIONS A high level of variability was found in the level of ADR in the control groups of RCTs. With regards to indications, only fecal immunochemical test-based colonoscopy studies influenced basic ADR, and primary colonoscopy screening appeared to be similar to other indications. Standardization for variables related to clinical, methodologic, and technical parameters is required to achieve generalizability and reproducibility.
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Affiliation(s)
- Cesare Hassan
- Department of Biomedical Sciences, Pieve Emanuele, Humanitas University, Rozzano, Italy; Endoscopy Unit, Humanitas Clinical and Research Center, IRCCS, Rozzano, Italy
| | - Daniele Piovani
- Department of Biomedical Sciences, Pieve Emanuele, Humanitas University, Rozzano, Italy; Endoscopy Unit, Humanitas Clinical and Research Center, IRCCS, Rozzano, Italy
| | - Marco Spadaccini
- Department of Biomedical Sciences, Pieve Emanuele, Humanitas University, Rozzano, Italy; Endoscopy Unit, Humanitas Clinical and Research Center, IRCCS, Rozzano, Italy
| | - Tommaso Parigi
- Department of Biomedical Sciences, Pieve Emanuele, Humanitas University, Rozzano, Italy; Endoscopy Unit, Humanitas Clinical and Research Center, IRCCS, Rozzano, Italy
| | - Kareem Khalaf
- Department of Biomedical Sciences, Pieve Emanuele, Humanitas University, Rozzano, Italy
| | - Antonio Facciorusso
- Department of Medical Sciences, Section of Gastroenterology, University of Foggia, Foggia, Italy
| | - Alessandro Fugazza
- Department of Biomedical Sciences, Pieve Emanuele, Humanitas University, Rozzano, Italy
| | - Thomas Rösch
- Department of Interdisciplinary Endoscopy, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Michael Bretthauer
- Clinical Effectiveness Research Group, Institute of Health and Society, University of Oslo, Oslo, Norway
| | - Yuichi Mori
- Clinical Effectiveness Research Group, Institute of Health and Society, University of Oslo, Oslo, Norway; Digestive Disease Center, Showa University Northern Yokohama Hospital, Yokohama, Japan
| | - Prateek Sharma
- Department of Gastroenterology and Hepatology, Kansas City VA Medical Center, Kansas City, Missouri, USA
| | - Douglas K Rex
- Division of Gastroenterology and Hepatology, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Stefanos Bonovas
- Department of Biomedical Sciences, Pieve Emanuele, Humanitas University, Rozzano, Italy; Endoscopy Unit, Humanitas Clinical and Research Center, IRCCS, Rozzano, Italy
| | - Alessandro Repici
- Department of Biomedical Sciences, Pieve Emanuele, Humanitas University, Rozzano, Italy; Endoscopy Unit, Humanitas Clinical and Research Center, IRCCS, Rozzano, Italy
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Schult AL, Hoff G, Holme Ø, Botteri E, Seip B, Ranheim Randel K, Darre-Næss O, Owen T, Nilsen JA, Nguyen DH, Johansen K, de Lange T. Colonoscopy quality improvement after initial training: A cross-sectional study of intensive short-term training. Endosc Int Open 2023; 11:E117-E127. [PMID: 36712907 PMCID: PMC9879657 DOI: 10.1055/a-1994-6084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Accepted: 12/06/2022] [Indexed: 12/12/2022] Open
Abstract
Background and study aims High-quality is crucial for the effectiveness of colonoscopy and can be achieved by high-quality training and verified with assessment of key performance indicators (KPIs) for colonoscopy such as cecum intubation rate (CIR), adenoma detection rate (ADR) and adequate polyp resection. Typically, trainees achieve adequate CIR after 275 procedures, but little is known about learning curves for KPIs after initial training. Methods This cross-sectional study includes work-up colonoscopies after a positive screening test with fecal occult blood testing (FIT) or sigmoidoscopy, performed by either trainees after 300 training colonoscopies or by consultants. Outcome measures were KPIs. We assessed inter-endoscopist variation in trainees and learning curves for trainees as a group. We also compared KPIs for trainees and consultants as a group. Results Data from 6,655 colonoscopies performed by 21 trainees and 921 colonoscopies performed by 17 consultants were included. Most trainees achieved target standards for main KPIs. With time, trainees shortened cecum intubation time and withdrawal time without decreasing their ADR, reduced the proportion of painful colonoscopies, and increased the adequate polyp resection rate (all P < 0.01). Compared to consultants, trainees had higher CIR (97.7 % vs. 96.3 %, P = 0.02), ADR after positive FIT (57.6 % vs. 50.3 %, P < 0.01), and proximal ADR after sigmoidoscopy screening (41.1 % vs. 29.8 %; P < 0.01), higher adequate polyp resection rate (94.9 % vs. 93.1 %, P = 0.01) and fewer serious adverse events (0.65 % vs. 1.41 %, P = 0.02). Conclusions Trainees performed high-quality colonoscopies and achieved international target standards. Several KPIs continuously improved after initial training. Trainees outperformed consultants on several KPIs.
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Affiliation(s)
- Anna Lisa Schult
- Section for Colorectal Cancer Screening, Cancer Registry of Norway, Oslo, Norway,Department of Medicine, Vestre Viken Hospital Trust Bærum, Gjettum, Norway
| | - Geir Hoff
- Section for Colorectal Cancer Screening, Cancer Registry of Norway, Oslo, Norway,Institute of Clinical Medicine, University of Oslo, Oslo, Norway,Department of Research and Development, Telemark Hospital Trust, Skien, Norway
| | - Øyvind Holme
- Section for Colorectal Cancer Screening, Cancer Registry of Norway, Oslo, Norway,Institute of Health and Society, University of Oslo, Oslo, Norway,Department of Medicine, Sørlandet Hospital Trust, Kristiansand, Norway
| | - Edoardo Botteri
- Section for Colorectal Cancer Screening, Cancer Registry of Norway, Oslo, Norway,Department of Research, Cancer Registry of Norway, Oslo, Norway
| | - Birgitte Seip
- Section for Colorectal Cancer Screening, Cancer Registry of Norway, Oslo, Norway,Department of Medicine, Vestfold Hospital, Tønsberg, Norway
| | | | - Ole Darre-Næss
- Department of Medicine, Vestre Viken Hospital Trust Bærum, Gjettum, Norway
| | - Tanja Owen
- Department of Medicine, Østfold Hospital Trust, Grålum, Norway
| | - Jens Aksel Nilsen
- Department of Medicine, Vestre Viken Hospital Trust Bærum, Gjettum, Norway
| | | | - Kristin Johansen
- Section for Colorectal Cancer Screening, Cancer Registry of Norway, Oslo, Norway
| | - Thomas de Lange
- Department of Medicine and Emergencies Sahlgrenska University Hospital-Mölndal, Region Västra Götaland, Sweden,Department of Molecular and Clinical Medicine, Sahlgrenska Academy, University of Gothenburg, Sweden,Department of Medical Research, Vestre Viken Hospital Trust Bærum, Gjettum, Norway
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Moon SY, Lee JY, Lee JH. Comparison of adenoma detection rate between high-definition colonoscopes with different fields of view: 170 degrees versus 140 degrees. Medicine (Baltimore) 2023; 102:e32675. [PMID: 36637919 PMCID: PMC9839301 DOI: 10.1097/md.0000000000032675] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
In newer generation colonoscopes, the field of view (FOV) varies approximately between 170° and 140°, depending on the type of colonoscopy. To the best of our knowledge, no study has investigated whether the visual field difference of the colonoscope affects quality indicators, such as the adenoma detection rate (ADR), without using additional devices to expand the FOV in colonoscopes with the same resolution. This study aimed to investigate the difference in quality indicators, such as ADR, between 170° and 140° FOV in colonoscopes with the same high-definition resolution. We retrospectively analyzed the medical records of patients who underwent screening or surveillance colonoscopy at the Dong-A University Hospital in Busan, South Korea, between March 2021 and February 2022. We calculated the overall ADR ratios for patients who underwent colonoscopy with 140° and 170° FOV. Polyp detection rate (PDR), sessile serrated PDR, and advanced neoplasia detection rate were calculated for each group. Factors associated with adenoma detection were identified using a logistical regression analysis. A total of 1711 patients were included in the study (838 patients in the 170° group and 873 patients in the 140° group). ADR (43.79 vs 41.92%, P = .434) did not significantly differ between the 2 groups. The generational differences were not statistically significant either for PDR (56.44 vs 53.49%, P = .220), sessile serrated PDR (1.19 vs 0.92%, P = .575), or advanced neoplasia detection rate (5.00 vs 4.58%, P = .735). Multivariate regression analysis revealed that, age, male sex, and long withdrawal time were the most significant factors affecting adenoma detection. This study revealed that there were no differences in ADR while employing high definition colonoscopes with a 170° FOV and a 140° FOV.
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Affiliation(s)
- Sang Yi Moon
- Department of Internal Medicine, Dong-A University College of Medicine, Busan, South Korea
| | - Jong Yoon Lee
- Department of Internal Medicine, Dong-A University College of Medicine, Busan, South Korea
- * Correspondence: Jong Yoon Lee, Dong-A University College of Medicine, Busan 49201, South Korea (e-mail: )
| | - Jong Hoon Lee
- Department of Internal Medicine, Dong-A University College of Medicine, Busan, South Korea
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PARADA AA, VENCO FE, VARCA-NETO MR, EL IBRAHIM R, POLETTI PB, BRITO HP, SARE HDF, MALAFAIA O. WHICH LESIONS ARE AT HIGHER RISK OF DEVELOPING COLORECTAL CARCINOMAS: SUPERFICIALLY ELEVATED SERRATED LESIONS OR DEPRESSED LESIONS? ARQUIVOS BRASILEIROS DE CIRURGIA DIGESTIVA : ABCD = BRAZILIAN ARCHIVES OF DIGESTIVE SURGERY 2023; 35:e1716. [PMID: 36629693 PMCID: PMC9831628 DOI: 10.1590/0102-672020220002e1716] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Accepted: 10/09/2022] [Indexed: 01/11/2023]
Abstract
BACKGROUND There are lesions that are still being missed in colonoscopy. Many of those could be superficially elevated serrated lesions or depressed ones. AIMS The aim of this study was to compare the histopathological characteristics of these lesions and their risks for submucosal carcinoma. METHODS This is a retrospective, cross-sectional, and observational study comparing 217 superficially elevated serrated lesions larger than 5 mm resected by colonoscopies (G1) with 558 depressed lesions (G2). RESULTS In G1, 217 lesions were found in 12,653 (1.7%) colonoscopies; in G2, 558 lesions were found in 36,174 (1.5%) colonoscopies. In G1, 63.4% were women and in G2, there was no gender predominance. The average size of G1 was 16.2 mm and G2 was 9.2 mm (p<0.001). G1 predominated on the proximal colon and G2 on the distal and rectum (p<0.001). In G1, there were 214 (98.6%) low-grade intramucosal neoplasia and 3 (1.4%) high-grade intramucosal neoplasia. Excluding 126 hyperplastic polyps and considering 91 sessile serrated adenomas in G1, we observed 88 (96.7%) low-grade intramucosal neoplasia and 3 (3.3%) high-grade intramucosal neoplasia; in G2, we observed 417 (74.7%) low-grade intramucosal neoplasia, 113 (20.3%) high-grade intramucosal neoplasia, and 28 (5.0%) submucosal adenocarcinomas (p<0.001). CONCLUSION Depressed lesions significantly had more high-grade intramucosal neoplasia and more invasive carcinomas in the submucosal layer than superficially elevated serrated lesions and more than superficially elevated sessile serrated adenomas.
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Affiliation(s)
- Artur Adolfo PARADA
- Faculdade Evangélica Mackenzie do Paraná, Postgraduate Program in Principles of Surgery – Curitiba (PR), Brazil;
| | - Filadelfio Euclydes VENCO
- Nove de Julho Hospital, Center for Endoscopic Diagnosis and Therapeutics of São Paulo – São Paulo (SP), Brazil;
| | - Miguel Reynaldo VARCA-NETO
- Nove de Julho Hospital, Center for Endoscopic Diagnosis and Therapeutics of São Paulo – São Paulo (SP), Brazil;
| | - Roberto EL IBRAHIM
- Nove de Julho Hospital, Center for Endoscopic Diagnosis and Therapeutics of São Paulo – São Paulo (SP), Brazil;
| | - Paula Bechara POLETTI
- Nove de Julho Hospital, Center for Endoscopic Diagnosis and Therapeutics of São Paulo – São Paulo (SP), Brazil;
| | - Helcio Pedrosa BRITO
- Nove de Julho Hospital, Center for Endoscopic Diagnosis and Therapeutics of São Paulo – São Paulo (SP), Brazil;
| | - Heloisa de Fátima SARE
- Faculdade Evangélica Mackenzie do Paraná, Postgraduate Program in Principles of Surgery – Curitiba (PR), Brazil;
| | - Osvaldo MALAFAIA
- Faculdade Evangélica Mackenzie do Paraná, Postgraduate Program in Principles of Surgery – Curitiba (PR), Brazil; ,Evangélico Mackenzie University Hospital – Curitiba (PR), Brazil
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Li X, Zhu H, Li F, Li R, Xu H. Different endoscopic treatments for small colorectal polyps: A systematic review, pair-wise, and network meta-analysis. Front Med (Lausanne) 2023; 10:1154411. [PMID: 37089613 PMCID: PMC10117900 DOI: 10.3389/fmed.2023.1154411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Accepted: 03/17/2023] [Indexed: 04/25/2023] Open
Abstract
Background and study aims In recent years, cold snare polypectomy (CSP) has been increasingly used for small polyps (<10 mm) instead of hot snare polypectomy (HSP). However, evidence-based research regarding the effectiveness and safety of CSP and HSP are still lacking. Additionally, for 4-10 -mm non-pedunculated polyps, the polyp removal method is still controversial. Therefore, it is clinically significant to conduct pair-wise and network meta-analyses to assess such resection methods. Methods We searched PubMed, Embase, and the Cochrane library for randomized controlled trials (RCTs). Only studies that involved the resection of polyps <10 mm were included. Outcomes included the complete resection rate, polyp retrieval rate, procedure-related complications, and procedure times. Results Overall, 23 RCTs (5,352 patients) were identified. In meta-analysis compared CSP versus HSP for polyps <10 mm, CSP showed lower complete resection rate than HSP although with no statistically significant difference [odds ratio (OR): 0.77, 95% confidence interval (CI): 0.56-1.06]. CSP showed a lower risk of major post-polypectomy complications compared to HSP (OR: 0.28, 95% CI: 0.11-0.73). In the network meta-analysis for 4-10 mm non-pedunculated polyps, HSP, and endoscopic mucosal resection (EMR) showed a higher complete resection rate than CSP (OR: 2.7, 95% CI: 1.3-9.2 vs. OR: 2.6, 95% CI: 1.0-10) but a significantly longer time than CSP (WMD: 16.55 s, 95% CI [7.48 s, 25.25 s], p < 0.001), (WMD: 48.00 s, 95% CI [16.54 s, 79.46 s], p = 0.003). Underwater CSP ranked third for complete resection with no complications. Conclusion For <10 mm polyps, CSP is safer than HSP, especially for patients taking antithrombotic drugs. For 4-10 mm non-pedunculated polyps, HSP, and EMR have higher complete resection rates than CSP. Systematic review registration https://www.crd.york.ac.uk/PROSPERO/, identifier CRD42022315575.
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Affiliation(s)
- Xuanhan Li
- Department of Gastroenterology, The First Hospital of Jilin University, Changchun, Jilin, China
| | - He Zhu
- Department of Gastroenterology, The First Hospital of Jilin University, Changchun, Jilin, China
| | - Fudong Li
- Department of Gastroenterology, The First Hospital of Jilin University, Changchun, Jilin, China
| | - Ri Li
- Department of Library, The First Hospital of Jilin University, Changchun, Jilin, China
| | - Hong Xu
- Department of Gastroenterology, The First Hospital of Jilin University, Changchun, Jilin, China
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Muething L, Quach B, Smith DE, Gao D, Smith JA, Simril RT, Tompkins A, Espinoza J, Cowan ML, Hammad H, Wani S, Patel SG. Adoption of Optimal Small (6-9 mm) Colorectal Polyp Resection Technique Over Time. Dig Dis Sci 2023; 68:240-251. [PMID: 35624328 DOI: 10.1007/s10620-022-07554-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Accepted: 04/29/2022] [Indexed: 02/01/2023]
Abstract
BACKGROUND Cold snare polypectomy (CSP) is the preferred resection technique for small (6-9 mm) polyps due to lower rate of incomplete resection compared to cold forceps polypectomy (CFP) and improved safety profile over hot snare polypectomy (HSP). AIMS To describe resection techniques for small (6-9 mm) polyps and determine factors associated with sub-optimal technique. METHODS This was retrospective cohort study of colonoscopies performed by gastroenterological and surgical endoscopists from 2012 to 2019 where at least one 6-9 mm polyp was removed. Patient, provider, and procedure characteristics were collected. Univariate and multivariate regression analyses were performed to determine factors associated with sub-optimal technique. RESULTS In total, 773 colonoscopies where 1,360 6-9 mm polyps removed by 21 endoscopists were included. CSP was used for 1,122 (82.5%), CFP for 61 (4.5%), and HSP for 177 (13.0%). Surgeon specialty was associated with CFP use (aOR 7.81; 95% CI 3.02-20.16). Polyp location in left colon (aOR 1.65; 95% CI 1.17-2.33) and pedunculated morphology (aOR 12.76; 95% CI 7.24-22.50) were associated with HSP. There was a significant increase in overall CSP use from 30.4% in 2012 to 96.8% in 2019. CONCLUSIONS 82.5% of all 6-9 mm polyps removed from 2012 to 2019 were removed using a cold snare with significant increase in CSP from 2012 to 2019. Differences in how optimal technique was adopted over time based on specialty highlight the need for standardized practice guidelines and quality monitoring.
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Affiliation(s)
- Larissa Muething
- Department of Medicine, Division of Gastroenterology and Hepatology, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
- Rocky Mountain Regional Veterans Affairs Medical Center, Aurora, CO, USA
| | - Bill Quach
- Department of Medicine, Division of Gastroenterology and Hepatology, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
- Rocky Mountain Regional Veterans Affairs Medical Center, Aurora, CO, USA
| | - Derek E Smith
- Department of Pediatrics, Cancer Center Biostatistics Core, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Dexiang Gao
- Department of Pediatrics, Cancer Center Biostatistics Core, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Joshua A Smith
- Department of Medicine, Division of Gastroenterology and Hepatology, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Robert T Simril
- Department of Medicine, Division of Gastroenterology and Hepatology, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
- Rocky Mountain Regional Veterans Affairs Medical Center, Aurora, CO, USA
| | - Amanda Tompkins
- Department of Medicine, Division of Gastroenterology and Hepatology, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Jeannine Espinoza
- Department of Medicine, Division of Gastroenterology and Hepatology, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
- Rocky Mountain Regional Veterans Affairs Medical Center, Aurora, CO, USA
| | - Michelle L Cowan
- Department of Surgery, University of Washington, Seattle, WA, USA
| | - Hazem Hammad
- Department of Medicine, Division of Gastroenterology and Hepatology, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
- Rocky Mountain Regional Veterans Affairs Medical Center, Aurora, CO, USA
| | - Sachin Wani
- Department of Medicine, Division of Gastroenterology and Hepatology, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Swati G Patel
- Department of Medicine, Division of Gastroenterology and Hepatology, University of Colorado Anschutz Medical Campus, Aurora, CO, USA.
- Rocky Mountain Regional Veterans Affairs Medical Center, Aurora, CO, USA.
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Yang K, Cao Y, Gurjao C, Liu Y, Guo CG, Lo CH, Zong X, Drew D, Geraghty C, Prezioso E, Moore M, Williams C, Riley T, Saul M, Ogino S, Giannakis M, Bass A, Schoen RE, Chan AT. Clinical and Genomic Characterization of Interval Colorectal Cancer in 3 Prospective Cohorts. Gastroenterology 2022; 163:1522-1530.e5. [PMID: 35970241 PMCID: PMC9691567 DOI: 10.1053/j.gastro.2022.08.020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Revised: 08/05/2022] [Accepted: 08/08/2022] [Indexed: 01/05/2023]
Abstract
BACKGROUND & AIMS Interval colorectal cancers (CRCs), cancers diagnosed after a screening/surveillance examination in which no cancer is detected, and before the date of next recommended examination, reflect an unprecedented challenge in CRC detection and prevention. To better understand this poorly characterized CRC variant, we examined the clinical and mutational characteristics of interval CRCs in comparison with screen detected CRCs. METHODS We included 1175 CRCs documented in the Prostate, Lung, Colorectal, and Ovarian (PLCO) cancer screening trial and 3661 CRCs in the Nurses' Health Study (NHS) and Health Professionals Follow-up Study (HPFS). Multivariable Cox models were performed to estimate hazard ratios (HRs) and 95% confidence intervals (CIs) of death risk. Whole exome sequencing was conducted in 147 PLCO cases and 796 NHS/HPFS cases. RESULTS A total of 619 deaths (312 CRC-specific) and 2404 deaths (1904 CRC-specific) were confirmed during follow-up of PLCO and NHS/HPFS, respectively. Compared with screen detected CRCs, interval CRCs had a multivariate-adjusted HR (95% CI) of 1.47 (1.21-1.78) for CRC-specific mortality and 1.27 (1.09-1.47) for overall mortality (meta-analysis combining all 3 cohorts). However, we did not observe significant differences in mutational features between interval and screen detected CRCs (false discovery rate adjusted P > .05). CONCLUSION Interval CRCs had a significantly increased risk of death compared with screen detected CRCs that were not explained by established clinical prognostic factors, including stage at diagnosis. The survival disadvantage of interval CRCs did not appear to be explained by differences in the genomic landscape of tumors characterized by whole exome sequencing.
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Affiliation(s)
- Keming Yang
- Clinical and Translational Epidemiology Unit, Department of Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts; Division of Gastroenterology, Department of Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
| | - Yin Cao
- Division of Public Health Sciences, Department of Surgery, Washington University School of Medicine, St. Louis, Missouri; Division of Gastroenterology, Department of Medicine, Washington University School of Medicine, St. Louis, Missouri; Alvin J. Siteman Cancer Center, Washington University School of Medicine, St. Louis, Missouri
| | - Carino Gurjao
- Department of Medical Oncology, Dana-Farber Cancer Institute, and Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Yang Liu
- Case Western Reserve University School of Medicine, Cleveland, Ohio
| | - Chuan-Guo Guo
- Clinical and Translational Epidemiology Unit, Department of Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts; Department of Gastroenterology, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Chun-Han Lo
- Clinical and Translational Epidemiology Unit, Department of Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
| | - Xiaoyu Zong
- Division of Public Health Sciences, Department of Surgery, Washington University School of Medicine, St. Louis, Missouri
| | - David Drew
- Clinical and Translational Epidemiology Unit, Department of Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
| | - Connor Geraghty
- Clinical and Translational Epidemiology Unit, Department of Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
| | - Elizabeth Prezioso
- Clinical and Translational Epidemiology Unit, Department of Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
| | - Matt Moore
- Information Management Services, Inc., Rockville, Maryland
| | - Craig Williams
- Information Management Services, Inc., Rockville, Maryland
| | - Tom Riley
- Information Management Services, Inc., Rockville, Maryland
| | - Melissa Saul
- Department of Medicine, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania
| | - Shuji Ogino
- Program in MPE Molecular Pathological Epidemiology, Department of Pathology, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts; Broad Institute of MIT and Harvard, Cambridge, Massachusetts; Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, Massachusetts
| | - Marios Giannakis
- Department of Medical Oncology, Dana-Farber Cancer Institute, and Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts; Broad Institute of MIT and Harvard, Cambridge, Massachusetts
| | - Adam Bass
- Herbert Irving Comprehensive Cancer Center and Center for Precision Cancer Medicine, New York-Presbyterian/Columbia University Irving Medical Center, New York, New York
| | - Robert E Schoen
- Department of Medicine, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania; Division of Gastroenterology, Hepatology and Nutrition, and Department of Epidemiology, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Andrew T Chan
- Clinical and Translational Epidemiology Unit, Department of Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts; Division of Gastroenterology, Department of Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts; Broad Institute of MIT and Harvard, Cambridge, Massachusetts; Department of Immunology and Infectious Diseases, Harvard T.H. Chan School of Public Health, Boston, Massachusetts; Channing Division of Network Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts.
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47
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Reduced Adenoma Miss Rate With 9-Minute vs 6-Minute Withdrawal Times for Screening Colonoscopy: A Multicenter Randomized Tandem Trial. Am J Gastroenterol 2022; 118:802-811. [PMID: 36219172 PMCID: PMC10144327 DOI: 10.14309/ajg.0000000000002055] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Accepted: 09/02/2022] [Indexed: 12/11/2022]
Abstract
INTRODUCTION Although the 9-minute mean withdrawal time (m-WT) is often reported to be associated with the optimal adenoma detection rate (ADR), no randomized trials of screening colonoscopy have confirmed the impact of a 9-minute m-WT on adenoma miss rate (AMR) and ADR. METHODS A multicenter tandem trial was conducted in 11 centers. Seven hundred thirty-three asymptomatic participants were randomized to receive segmental tandem screening colonoscopy with a 9-minute withdrawal, followed by a 6-minute withdrawal (9-minute-first group, 9MF, n = 366) or vice versa (6-minute-first group, 6MF, n = 367). The primary outcome was the lesion-level AMR. RESULTS The intention-to-treat analysis revealed that 9MF significantly reduced the lesion-level (14.5% vs 36.6%, P < 0.001) and participant-level AMR (10.9% vs 25.9%, P < 0.001), advanced adenoma miss rate (AAMR, 5.3% vs 46.9%, P = 0.002), multiple adenomas miss rate (20.7% vs 56.5%, P = 0.01), and high-risk adenomas miss rate (14.6% vs 39.5%, P = 0.01) of 6MF without compromising detection efficiency ( P = 0.79). In addition, a lower false-negative rate for adenomas ( P = 0.002) and high-risk adenomas ( P < 0.05), and a lower rate of shortening surveillance schedule ( P < 0.001) were also found in 9MF, accompanying with an improved ADR in the 9-minute vs 6-minute m-WT (42.3% vs 33.5%, P = 0.02). The independent inverse association between m-WT and AMR remained significant even after adjusting ADR, and meanwhile, 9-minute m-WT was identified as an independent protector for AMR and AAMR. DISCUSSION In addition to increasing ADR, 9-minute m-WT also significantly reduces the AMR and AAMR of screening colonoscopy without compromising detection efficiency.
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48
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Shanahan JJ, LeBlanc DM, Courage ER, Benesch MGK, Hickey KE, Hartwig KA, Armstrong CD, Engelbrecht R, Fagan MG, Borgaonkar MR, Pace DE. Characteristics of Interval Colorectal Cancer: A Canadian Retrospective Population-Level Analysis from Newfoundland and Labrador. Curr Oncol 2022; 29:9150-9162. [PMID: 36547130 PMCID: PMC9776431 DOI: 10.3390/curroncol29120716] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2022] [Revised: 11/15/2022] [Accepted: 11/23/2022] [Indexed: 11/25/2022] Open
Abstract
Interval colorectal cancers (I-CRCs) arise during the interval time period between scheduled colonoscopies. Predicting which patients are at risk of I-CRCs remains an elusive undertaking, but evidence would suggest that most I-CRCs arise from lesions missed on index endoscopy. The procedural factors that lead to missed lesions are numerous and lack consensus in the literature. In Canada, the province of Newfoundland and Labrador has the highest incidence of CRCs. In this study our aim was to examine I-CRCs (3-60 months after last colonoscopy) in NL through a population-level analysis covering 67% of the province from 2001-2018. We estimated the I-CRC rate to be up to 9.3%. Median age of I-CRC diagnosis was 67.1 years with an interval time of 2.9 years. About 57% of these tumors occurred proximal to the splenic flexure, with 53% presenting as local disease. No temporal differences were observed in interval time or tumor distribution. On univariate and multivariable logistical regression, risk of right-sided I-CRC did not correlate to the index colonoscopy indication, bowel preparation quality, size of largest polyp removed, colonoscopy completion rate, or stage at presentation. Improvements in synoptic reporting utilization and national registries are needed to identity risk factors and reduce I-CRC frequency.
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Affiliation(s)
- Jessica J. Shanahan
- Discipline of Surgery, Faculty of Medicine, Memorial University of Newfoundland, St. John’s, NL A1B 3V6, Canada
| | - Danielle M. LeBlanc
- Discipline of Surgery, Faculty of Medicine, Memorial University of Newfoundland, St. John’s, NL A1B 3V6, Canada
| | - Emily R. Courage
- Discipline of Surgery, Faculty of Medicine, Memorial University of Newfoundland, St. John’s, NL A1B 3V6, Canada
| | - Matthew G. K. Benesch
- Discipline of Surgery, Faculty of Medicine, Memorial University of Newfoundland, St. John’s, NL A1B 3V6, Canada
- Department of Surgical Oncology, Roswell Park Comprehensive Cancer Center, Buffalo, NY 14263, USA
| | - Kala E. Hickey
- Discipline of Surgery, Faculty of Medicine, Memorial University of Newfoundland, St. John’s, NL A1B 3V6, Canada
| | - Katia A. Hartwig
- Discipline of Surgery, Faculty of Medicine, Memorial University of Newfoundland, St. John’s, NL A1B 3V6, Canada
| | - Casey D. Armstrong
- Discipline of Surgery, Faculty of Medicine, Memorial University of Newfoundland, St. John’s, NL A1B 3V6, Canada
| | - Reniel Engelbrecht
- Discipline of Medicine, Faculty of Medicine, Memorial University of Newfoundland, St. John’s, NL A1B 3V6, Canada
| | - Mitchell G. Fagan
- Discipline of Surgery, Faculty of Medicine, Memorial University of Newfoundland, St. John’s, NL A1B 3V6, Canada
| | - Mark R. Borgaonkar
- Discipline of Medicine, Faculty of Medicine, Memorial University of Newfoundland, St. John’s, NL A1B 3V6, Canada
| | - David E. Pace
- Discipline of Surgery, Faculty of Medicine, Memorial University of Newfoundland, St. John’s, NL A1B 3V6, Canada
- Correspondence:
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49
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Roshan A, Byrne MF. Artificial intelligence in colorectal cancer screening. CMAJ 2022; 194:E1481-E1484. [PMID: 36343958 PMCID: PMC9828996 DOI: 10.1503/cmaj.220034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Affiliation(s)
- Aishwarya Roshan
- Faculty of Medicine (Roshan, Byrne), University of British Columbia; Division of Gastroenterology (Byrne), Vancouver General Hospital; Satisfai Health and AI4GI joint venture (Byrne), Vancouver, BC
| | - Michael F Byrne
- Faculty of Medicine (Roshan, Byrne), University of British Columbia; Division of Gastroenterology (Byrne), Vancouver General Hospital; Satisfai Health and AI4GI joint venture (Byrne), Vancouver, BC
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50
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Sung JJY, Chiu HM, Lieberman D, Kuipers EJ, Rutter MD, Macrae F, Yeoh KG, Ang TL, Chong VH, John S, Li J, Wu K, Ng SSM, Makharia GK, Abdullah M, Kobayashi N, Sekiguchi M, Byeon JS, Kim HS, Parry S, Cabral-Prodigalidad PAI, Wu DC, Khomvilai S, Lui RN, Wong S, Lin YM, Dekker E. Third Asia-Pacific consensus recommendations on colorectal cancer screening and postpolypectomy surveillance. Gut 2022; 71:2152-2166. [PMID: 36002247 DOI: 10.1136/gutjnl-2022-327377] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Accepted: 08/07/2022] [Indexed: 12/09/2022]
Abstract
The Asia-Pacific region has the largest number of cases of colorectal cancer (CRC) and one of the highest levels of mortality due to this condition in the world. Since the publishing of two consensus recommendations in 2008 and 2015, significant advancements have been made in our knowledge of epidemiology, pathology and the natural history of the adenoma-carcinoma progression. Based on the most updated epidemiological and clinical studies in this region, considering literature from international studies, and adopting the modified Delphi process, the Asia-Pacific Working Group on Colorectal Cancer Screening has updated and revised their recommendations on (1) screening methods and preferred strategies; (2) age for starting and terminating screening for CRC; (3) screening for individuals with a family history of CRC or advanced adenoma; (4) surveillance for those with adenomas; (5) screening and surveillance for sessile serrated lesions and (6) quality assurance of screening programmes. Thirteen countries/regions in the Asia-Pacific region were represented in this exercise. International advisors from North America and Europe were invited to participate.
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Affiliation(s)
| | - Han-Mo Chiu
- Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan.,Department of Internal Medicine, College of Medicine, National Taiwan University, Taipei, Taiwan
| | | | | | | | - Finlay Macrae
- The Royal Melbourne Hospital, Melbourne, Victoria, Australia
| | | | | | - Vui Heng Chong
- Raja Isteri Pengiran Anak Saleha Hospital, Brunei, Brunei Darussalam
| | - Sneha John
- Digestive Health, Endoscopy, Gold Coast University Hospital, Southport, Queensland, Australia
| | - Jingnan Li
- Peking Union Medical College Hospital, Beijing, China
| | - Kaichun Wu
- Fourth Military Medical University, Xi'an, China
| | - Simon S M Ng
- The Chinese University of Hong Kong, Hong Kong, Hong Kong
| | | | - Murdani Abdullah
- Division of Gastroenterology, Pancreatibiliar and Digestive Endoscopy. Department of Internal Medicine, Hospital Dr Cipto Mangunkusumo, Jakarta, Indonesia.,Human Cancer Research Center. IMERI. Faculty of Medicine, Universitas Indonesia, Jakarta, Indonesia
| | - Nozomu Kobayashi
- Cancer Screening Center/ Endoscopy Division, National Cancer Center Hospital, Tokyo, Japan.,Division of Screening Technology, National Cancer Center Institute for Cancer Control, Tokyo, Japan
| | - Masau Sekiguchi
- Cancer Screening Center/ Endoscopy Division, National Cancer Center Hospital, Tokyo, Japan.,Division of Screening Technology, National Cancer Center Institute for Cancer Control, Tokyo, Japan
| | - Jeong-Sik Byeon
- University of Ulsan College of Medicine, Seoul, Korea (the Republic of)
| | - Hyun-Soo Kim
- Yonsei University, Seoul, Korea (the Republic of)
| | - Susan Parry
- National Bowel Screening Programme, New Zealand Ministry of Health, Auckland, New Zealand.,The University of Auckland, Auckland, New Zealand
| | | | | | | | - Rashid N Lui
- Division of Gastroenterology and Hepatology, Department of Medicine and Therapeutics, Prince of Wales Hospital, Chinese University of Hong Kong, Hong Kong, Hong Kong.,Institute of Digestive Disease, The Chinese University of Hong Kong, Hong Kong, Hong Kong
| | - Sunny Wong
- Lee Kong Chian School of Medicine, Singapore
| | - Yu-Min Lin
- Shin Kong Wu Ho Su Memorial Hospital, Taipei, Taiwan
| | - E Dekker
- Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, The Netherlands
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