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Yeh JH, Lin CW, Hsiao PJ, Perng DS, Chen JC, Hung KT, Hsu CC, Chen CC, Liu YP, Lee YC, Wang JY. Prevalence and predictive factors of colorectal sessile serrated lesions in younger individuals. Endoscopy 2024; 56:494-502. [PMID: 38378019 DOI: 10.1055/a-2272-1911] [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] [Indexed: 02/22/2024]
Abstract
BACKGROUND Sessile serrated lesions (SSLs) are obscured lesions predominantly in the right-sided colon and associated with interval colorectal cancer; however, their prevalence and risk factors among younger individuals remain unclear. METHODS This retrospective study enrolled individuals who underwent index colonoscopy. The primary outcome was the SSL prevalence in the younger (<50 years) and older (≥50 years) age groups, while the secondary outcomes included clinically significant serrated polyps (CSSPs). Multivariable logistic regression was employed to identify predictors. RESULTS Of the 9854 eligible individuals, 4712 (47.8%) were categorized into the younger age group. Individuals in the younger age group exhibited lower prevalences of adenomas (22.6% vs. 46.2%; P<0.001) and right-sided adenomas (11.2% vs. 27.2%; P<0.001) compared with their older counterparts. However, both groups exhibited a similar prevalence of SSLs (7.2% vs. 6.5%; P=0.16) and CSSPs (10.3% vs. 10.3%;P=0.96). Multivariable analysis revealed that age 40-49 years (odds ratio [OR] 1.81, 95%CI 1.01-3.23), longer withdrawal time (OR 1.17, 95%CI 1.14-1.20, per minute increment), and endoscopist performance (OR 3.35, 95%CI 2.44-4.58) were independent predictors of SSL detection in the younger age group. No significant correlation was observed between adenoma and SSL detection rates among endoscopists. CONCLUSION SSLs are not uncommon among younger individuals. Moreover, diligent effort and expertise are of paramount importance in SSL detection. Future studies should explore the clinical significance of SSLs in individuals of younger age.
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Affiliation(s)
- Jen-Hao Yeh
- Graduate Institute of Clinical Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, E-Da DaChang Hospital, I-Shou University, Kaohsiung, Taiwan
| | - Chih-Wen Lin
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, E-Da Hospital, I-Shou University, Kaohsiung, Taiwan
| | - Po-Jen Hsiao
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, E-Da DaChang Hospital, I-Shou University, Kaohsiung, Taiwan
| | - Daw-Shyong Perng
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, E-Da Hospital, I-Shou University, Kaohsiung, Taiwan
| | - Jen-Chieh Chen
- Department of Health Examination, E-Da Hospital, I-Shou University, Kaohsiung, Taiwan
| | - Kuo-Tung Hung
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, E-Da DaChang Hospital, I-Shou University, Kaohsiung, Taiwan
| | - Chia-Chang Hsu
- Department of Health Examination, E-Da Hospital, I-Shou University, Kaohsiung, Taiwan
| | - Chia-Chi Chen
- Department of Pathology, E-Da Hospital, I-Shou University, Kaohsiung, Taiwan
| | - Yu-Peng Liu
- Graduate Institute of Clinical Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
- Research Center for Environmental Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Yi-Chia Lee
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - Jaw-Yuan Wang
- Graduate Institute of Clinical Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
- Department of Surgery, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
- Center for Cancer Research, Kaohsiung Medical University, Kaohsiung, Taiwan
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Nishizawa T, Watanabe H, Yoshida S, Matsuno T, Fujimoto A, Matsuda R, Ebinuma H, Fujishiro M, Saito Y, Toyoshima O. Association between colonic adenoma size and proliferative zone in the crypt. Scand J Gastroenterol 2024; 59:875-879. [PMID: 38700462 DOI: 10.1080/00365521.2024.2345385] [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: 02/09/2024] [Accepted: 04/14/2024] [Indexed: 05/05/2024]
Abstract
BACKGROUND We previously reported unusual adenomas with proliferative zones confined to the lower two-thirds of the crypt. The proliferative zones of colorectal adenomas have three patterns: 'lower,' 'superficial' and 'entire'. This study aimed to clarify the characteristics of each adenoma pattern. METHODS We investigated 2925 consecutive patients who underwent colonoscopy at our institute. All polyps that were removed were histologically examined using hematoxylin and eosin staining. The location of the proliferative zone was assessed for adenomas. Data were compared using Dunn's and Kruskal-Wallis tests. RESULTS Colorectal adenomas with 'lower' proliferative zone often appeared similar to hyperplastic polyps (42.8%), and the frequency was significantly higher than that of adenomas with 'superficial' and 'entire' proliferative zones (p < 0.001). The mean sizes of adenomas were 2.4, 3.0 and 3.9 mm for 'lower,' 'superficial' and 'entire' proliferative zones, respectively. A significant gradual increase was observed. Regarding morphology, the proportion of type 0-I in adenomas with an 'entire' proliferative zone was significantly higher than that in adenomas with 'superficial' proliferative zone (p < 0.001). CONCLUSION While colorectal adenomas develop and increase in size, the proliferative zone appears to shift upward and become scattered.
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Affiliation(s)
- Toshihiro Nishizawa
- Gastroenterology, Toyoshima Endoscopy Clinic, Tokyo, Japan
- Department of Gastroenterology and Hepatology, International University of Health and Welfare Narita Hospital, Chiba, Japan
| | | | - Shuntaro Yoshida
- Gastroenterology, Toyoshima Endoscopy Clinic, Tokyo, Japan
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | | | - Ai Fujimoto
- Gastroenterology, Toyoshima Endoscopy Clinic, Tokyo, Japan
- Division of Gastroenterology and Hepatology, Toho University Omori Medical Center, Tokyo, Japan
| | - Rie Matsuda
- Gastroenterology, Toyoshima Endoscopy Clinic, Tokyo, Japan
| | - Hirotoshi Ebinuma
- Department of Gastroenterology and Hepatology, International University of Health and Welfare Narita Hospital, Chiba, Japan
| | - Mitsuhiro Fujishiro
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Yutaka Saito
- Endoscopy Division, National Cancer Center Hospital, Tokyo, Japan
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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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Nishizawa T, Watanabe H, Yoshida S, Matsuno T, Nakagawa H, Tamada K, Ebinuma H, Fujishiro M, Saito Y, Toyoshima O. Hyperplastic polyp-like adenoma: a subtype of colonic adenoma with a proliferative zone confined to the lower two-thirds of the crypt. Scand J Gastroenterol 2024; 59:378-383. [PMID: 38031937 DOI: 10.1080/00365521.2023.2285228] [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: 09/13/2023] [Accepted: 11/12/2023] [Indexed: 12/01/2023]
Abstract
BACKGROUND The proliferative zone of colonic adenomas is confined to the upper third of the crypt or is scattered along its entire axis. In contrast, there are unusual adenomas with proliferative zones confined to the lower two-thirds of the crypt. We investigated the frequency and endoscopic features of adenomas with lower proliferative zones. METHODS We retrospectively reviewed consecutive patients who underwent colonoscopies between September 2022 and March 2023 at the Toyoshima Endoscopy Clinic. Colorectal polyps were endoscopically assessed using the Japan Narrow-Band Imaging Expert Team (JNET) classification. All resected polyps were histologically examined, and the proliferative zone locations were assessed in the adenomas. RESULTS The frequency of adenomas with a lower proliferative zone was 1.8% (44/2420) in adenomas. Among these adenomas, JNET type 1 incidence was 43.2% (19/44), which was significantly higher than that in adenomas with a normal proliferative zone. Adenomas with a lower proliferative zone were diminutive (mean size: 2.5 mm) and prone to develop in the proximal colon. CONCLUSION Colonic adenomas with proliferative zones confined to the lower two-thirds of the crypt often appear as diminutive, hyperplastic polyps.
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Affiliation(s)
- Toshihiro Nishizawa
- Gastroenterology, Toyoshima Endoscopy Clinic, Tokyo, Japan
- Department of Gastroenterology and Hepatology, International University of Health and Welfare Narita Hospital, Chiba, Japan
| | | | | | | | - Hideki Nakagawa
- Gastroenterology, Toyoshima Endoscopy Clinic, Tokyo, Japan
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Kenji Tamada
- 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, Chiba, Japan
| | - Mitsuhiro Fujishiro
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Yutaka Saito
- Endoscopy Division, National Cancer Center Hospital, Tokyo, Japan
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Hiramatsu T, Nishizawa T, Kataoka Y, Yoshida S, Matsuno T, Mizutani H, Nakagawa H, Ebinuma H, Fujishiro M, Toyoshima O. Improved visibility of colorectal tumor by texture and color enhancement imaging with indigo carmine. World J Gastrointest Endosc 2023; 15:690-698. [PMID: 38187913 PMCID: PMC10768041 DOI: 10.4253/wjge.v15.i12.690] [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: 09/21/2023] [Revised: 10/25/2023] [Accepted: 11/24/2023] [Indexed: 12/15/2023] Open
Abstract
BACKGROUND Accurate diagnosis and early resection of colorectal polyps are important to prevent the occurrence of colorectal cancer. However, technical factors and morphological factors of polyps itself can lead to missed diagnoses. Image-enhanced endoscopy and chromoendoscopy (CE) have been developed to facilitate an accurate diagnosis. There have been no reports on visibility using a combination of texture and color enhancement imaging (TXI) and CE for colorectal tumors.
AIM To investigate the visibility of margins and surfaces with the combination of TXI and CE for colorectal lesions.
METHODS This retrospective study included patients who underwent lower gastrointestinal endoscopy at the Toyoshima Endoscopy Clinic. We extracted polyps that were resected and diagnosed as adenomas or serrated polyps (hyperplastic polyps and sessile serrated lesions) from our endoscopic database. An expert endoscopist performed the lower gastrointestinal endoscopies and observed the lesion using white light imaging (WLI), TXI, CE, and TXI + CE modalities. Indigo carmine dye was used for CE. Three expert endoscopists rated the visibility of the margin and surface patterns in four ranks, from 1 to 4. The primary outcomes were the average visibility scores for the margin and surface patterns based on the WLI, TXI, CE, and TXI + CE observations. Visibility scores between the four modalities were compared by the Kruskal-Wallis and Dunn tests.
RESULTS A total of 48 patients with 81 polyps were assessed. The histological subtypes included 50 tubular adenomas, 16 hyperplastic polyps, and 15 sessile serrated lesions. The visibility scores for the margins based on WLI, TXI, CE, and TXI + CE were 2.44 ± 0.93, 2.90 ± 0.93, 3.37 ± 0.74, and 3.75 ± 0.49, respectively. The visibility scores for the surface based on WLI, TXI, CE, and TXI + CE were 2.25 ± 0.80, 2.84 ± 0.84, 3.12 ± 0.72, and 3.51 ± 0.60, respectively. The visibility scores for the detection and surface on TXI were significantly lower than that on CE but higher than that on WLI (P < 0.001). The visibility scores for the margin and surface on TXI + CE were significantly higher than those on CE (P < 0.001). In the sub-analysis of adenomas, the visibility for the margin and surface on TXI + CE was significantly better than that on WLI, TXI, and CE (P < 0.001). In the sub-analysis of serrated polyps, the visibility for the margin and surface on TXI + CE was also significantly better than that on WLI, TXI, and CE (P < 0.001).
CONCLUSION TXI + CE enhanced the visibility of the margin and surface compared to WLI, TXI, and CE for colorectal lesions.
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Affiliation(s)
- Takuma Hiramatsu
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, Tokyo 113-8655, Japan
| | - Toshihiro Nishizawa
- Department of Gastroenterology and Hepatology, International University of Health and Welfare, Narita Hospital, Narita 286-8520, Japan
| | - Yosuke Kataoka
- Department of Gastroenterology, Toyoshima Endoscopy Clinic, Tokyo 157-0066, Japan
| | - Shuntaro Yoshida
- Department of Gastroenterology, Toyoshima Endoscopy Clinic, Tokyo 157-0066, Japan
| | - Tatsuya Matsuno
- Department of Gastroenterology, Toyoshima Endoscopy Clinic, Tokyo 157-0066, Japan
| | - Hiroya Mizutani
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, Tokyo 113-8655, Japan
| | - Hideki Nakagawa
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, Tokyo 113-8655, Japan
| | - Hirotoshi Ebinuma
- Department of Gastroenterology and Hepatology, International University of Health and Welfare, Narita Hospital, Narita 286-8520, Japan
| | - Mitsuhiro Fujishiro
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, Tokyo 113-8655, Japan
| | - Osamu Toyoshima
- Department of Gastroenterology, Toyoshima Endoscopy Clinic, Tokyo 157-0066, Japan
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High frequency of colorectal neoplasia in patients with sporadic adenomas or adenocarcinomas of the papilla of Vater: The same adenoma-carcinoma sequence? Dig Liver Dis 2022; 55:679-684. [PMID: 36411191 DOI: 10.1016/j.dld.2022.10.022] [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: 08/10/2022] [Revised: 09/30/2022] [Accepted: 10/14/2022] [Indexed: 11/19/2022]
Abstract
BACKGROUND Data on the frequency of colorectal neoplasia in sporadic ampullary tumors remains scarce. METHODS We retrospectively reviewed 135 patients undergoing endoscopic ampullectomy from January 2018 to July 2021, and identified 95 patients with sporadic ampullary adenoma who underwent total colonoscopy. Colonoscopy findings were compared with 380 asymptomatic controls using the chi-squared test. Whole-exome sequencing (WES) was performed on one patient with synchronous adenomas of the ampulla of Vater and ascending colon. RESULTS Colorectal polyps were present in 60% of Cases vs. 34.7% of Controls (P = 0.001), advanced adenoma in 20% vs. 5.5%, and adenocarcinoma in 4.2% vs. 0.8%. Cases tended to have larger polyps than Controls (P<0.001), while there was no difference in polyp location and histology between the two groups. The odds ratio of all the colorectal lesions, advanced colorectal adenoma and adenocarcinoma in Cases was 1.7, 4.2, and 4, respectively. WES in one patient revealed that both of ampullary adenoma and colonic adenoma shared somatic ABCB1 mutation. CONCLUSIONS The frequency of colorectal polyps or neoplasia was significantly higher in Cases than Controls. We proposed that ampullary neoplasia is analogous to colon lesions and warrants total colonoscopy screening in patients diagnosed with ampullary tumors.
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Toyoshima O, Nishizawa T, Yoshida S, Watanabe H, Odawara N, Sakitani K, Arano T, Takiyama H, Kobayashi H, Kogure H, Fujishiro M. Brown slits for colorectal adenoma crypts on conventional magnifying endoscopy with narrow band imaging using the X1 system. World J Gastroenterol 2022; 28:2748-2757. [PMID: 35979159 PMCID: PMC9260865 DOI: 10.3748/wjg.v28.i24.2748] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/16/2022] [Revised: 03/14/2022] [Accepted: 05/14/2022] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Accurate diagnosis of colorectal premalignant polyps, including adenomas, is vital in clinical practice.
AIM To investigate the diagnostic yields of novel findings of brown slits for adenomas.
METHODS Patients who underwent colonoscopy at the Toyoshima Endoscopy Clinic were enrolled. Polyps sized ≥ 5 mm suspected of adenomas or clinically significant serrated polyps were included in the study. We defined the surface structures of colorectal polyps, which were brown curves inside and along the tubular glands identified using a combination of a new X1 system (Olympus Corporation) and a conventional magnifying colonoscope with non-staining narrow band imaging (NBI), as brown slits. The brown slits corresponded to slit-like lumens on endocytoscopy and histological crypt openings of an adenoma. We evaluated the diagnostic performance of brown slits for adenoma.
RESULTS A total of 108 Lesions from 62 patients were eligible. The average age was 60.4 years and 41.9% were male. The mean polyp size was 7.45 ± 2.83 mm. Fifty-seven lesions were positive for brown slits. Histopathological diagnosis comprised 59 low-grade tubular adenomas, 16 sessile serrated lesions, and 33 hyperplastic polyps. Among 59 adenomas, 56 (94.9%) were positive for brown slits. Among 16 sessile serrated lesions, 0 (0%) was positive for brown slits. Among 33 hyperplastic polyps, 1 (3.0%) was positive for brown slits. The sensitivity, specificity, and accuracy of brown slits for adenoma were 94.9%, 98.0%, and 96.3%, respectively. The positive predictive value and negative predictive value of brown slits for adenoma were also excellent for 98.2%, and 94.1%, respectively.
CONCLUSION Brown slits on conventional magnifying endoscopy with non-staining NBI using the X1 system were useful for diagnosing colorectal adenoma. The new endoscopy system could be examined using new standards.
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Affiliation(s)
- Osamu Toyoshima
- Department of Gastroenterology, Toyoshima Endoscopy Clinic, Tokyo 157-0066, Japan
| | - Toshihiro Nishizawa
- Department of Gastroenterology, Toyoshima Endoscopy Clinic, Tokyo 157-0066, Japan
- Department of Gastroenterology and Hepatology, International University of Health and Welfare, Narita Hospital, Chiba 286-8520, Japan
| | - Shuntaro Yoshida
- Department of Gastroenterology, Toyoshima Endoscopy Clinic, Tokyo 157-0066, Japan
| | - Hidenobu Watanabe
- Department of Pathology, Pathology and Cytology Laboratory Japan, Tokyo 166-0003, Japan
| | - Nariaki Odawara
- Department of Gastroenterology, Toyoshima Endoscopy Clinic, Tokyo 157-0066, Japan
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, Tokyo 113-8655, Japan
| | - Kosuke Sakitani
- Department of Gastroenterology, Toyoshima Endoscopy Clinic, Tokyo 157-0066, Japan
- Department of Gastroenterology, Sakitani Endoscopy Clinic, Chiba 275-0026, Japan
| | - Toru Arano
- Department of Gastroenterology, Toyoshima Endoscopy Clinic, Tokyo 157-0066, Japan
- Department of Gastroenterology, The Fraternity Memorial Hospital, Tokyo 130-8587, Japan
| | - Hirotoshi Takiyama
- Department of Surgical Oncology, The University of Tokyo, Tokyo 113-8655, Japan
| | - Hideyuki Kobayashi
- Department of Internal Medicine, Umegaoka Ekimae Clinic, Tokyo 154-0022, Japan
| | - Hirofumi Kogure
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, Tokyo 113-8655, Japan
| | - Mitsuhiro Fujishiro
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, Tokyo 113-8655, Japan
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Heckroth M, Eiswerth M, Elmasry M, Gala K, Cai W, Diamond S, Shine A, Liu D, Liu N, Tholkage S, Kong M, Parajuli D. Serrated polyp detection rate in colonoscopies performed by gastrointestinal fellows. Ther Adv Gastrointest Endosc 2022; 15:26317745221136775. [PMCID: PMC9749503 DOI: 10.1177/26317745221136775] [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: 12/08/2021] [Accepted: 10/17/2022] [Indexed: 12/15/2022] Open
Abstract
Background: Clinically significant serrated polyp detection rate (CSSDR) and proximal serrated polyp detection rate (PSDR) have been suggested as the potential quality benchmarks for colonoscopy (CSSDR = 7% and PSDR = 11%) in comparison to the established benchmark adenoma detection rate (ADR). Another emerging milestone is the detection rate of lateral spreading lesions (LSLs). Objectives: This study aimed to evaluate CSSDR, PSDR, ADR, and LSL detection rates among gastrointestinal (GI) fellows performing a colonoscopy. A secondary aim was to evaluate patient factors associated with the detection rates of these lesions. Design and Methods: A retrospective review of 799 colonoscopy reports was performed. GI fellow details, demographic data, and pathology found on colonoscopy were collected. Multiple logistic regression analysis was performed to identify the factors associated with CSSDR, PSDR, ADR, and LSL detection rates. A p value < 0.05 was considered statistically significant. Results: For our patient population, the median age was 58 years; 396 (49.8%) were male and 386 (48.6%) were African American. The 15 GI fellows ranged from first (F1), second (F2), or third (F3) year of training. We found an overall CSSDR of 4.4%, PSDR of 10.5%, ADR of 42.1%, and LSL detection rate of 3.2%. Female gender was associated with CSSDR, while only age was associated with PSDR. GI fellow level of training was associated with LSL detection rate, with the odds of detecting them expected to be four times higher in F2/F3s than F1s. Conclusion: Although GI fellows demonstrated an above-recommended ADR and nearly reached target PSDR, they failed to achieve target CSSDR. Future studies investigating a benchmark for LSL detection rate are needed to quantify if GI fellows are detecting these lesions at adequate rates.
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Affiliation(s)
- Matthew Heckroth
- Department of Internal Medicine, University of Louisville, Louisville, KY, USA
| | - Michael Eiswerth
- Department of Internal Medicine, University of Louisville, Louisville, KY, USA
| | - Mohamed Elmasry
- Department of Internal Medicine, University of Louisville, Louisville, KY, USA
| | - Khushboo Gala
- Department of Internal Medicine, University of Louisville, Louisville, KY, USA
| | - Wenjing Cai
- Department of Internal Medicine, University of Louisville, Louisville, KY, USA
| | - Scott Diamond
- Department of Internal Medicine, University of Louisville, Louisville, KY, USA
| | - Amal Shine
- Department of Gastroenterology and Hepatology, University of Louisville, Louisville, KY, USA
| | - David Liu
- School of Medicine, University of Louisville, Louisville, KY, USA
| | - Nanlong Liu
- Department of Gastroenterology and Hepatology, University of Louisville, Louisville, KY, USA
| | - Sudaraka Tholkage
- Department of Bioinformatics and Biostatistics, University of Louisville, Louisville, KY, USA
| | - Maiying Kong
- Department of Bioinformatics and Biostatistics, University of Louisville, Louisville, KY, USA
| | - Dipendra Parajuli
- Department of Gastroenterology and Hepatology, University of Louisville, 550 S Jackson St, Louisville, KY 40202, USA
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Nishizawa T, Toyoshima O, Yoshida S, Uekura C, Kurokawa K, Munkhjargal M, Obata M, Yamada T, Fujishiro M, Ebinuma H, Suzuki H. TXI (Texture and Color Enhancement Imaging) for Serrated Colorectal Lesions. J Clin Med 2021; 11:jcm11010119. [PMID: 35011860 PMCID: PMC8745100 DOI: 10.3390/jcm11010119] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Revised: 12/19/2021] [Accepted: 12/24/2021] [Indexed: 12/13/2022] Open
Abstract
Background and aim: Olympus Corporation released the texture and color enhancement imaging (TXI) technology as a novel image-enhancing endoscopic technique. We investigated the effectiveness of TXI in the imaging of serrated colorectal polyps, including sessile serrated lesions (SSLs). Methods: Serrated colorectal polyps were observed using white light imaging (WLI), TXI, narrow-band imaging (NBI), and chromoendoscopy with and without magnification. Serrated polyps were histologically confirmed. TXI was compared with WLI, NBI, and chromoendoscopy for the visibility of the lesions without magnification and for that of the vessel and surface patterns with magnification. Three expert endoscopists evaluated the visibility scores, which were classified from 1 to 4. Results: Twenty-nine consecutive serrated polyps were evaluated. In the visibility score without magnification, TXI was significantly superior to WLI but inferior to chromoendoscopy in the imaging of serrated polyps and the sub-analysis of SSLs. In the visibility score for vessel patterns with magnification, TXI was significantly superior to WLI and chromoendoscopy in the imaging of serrated polyps and the sub-analysis of SSLs. In the visibility score for surface patterns with magnification, TXI was significantly superior to WLI but inferior to NBI in serrated polyps and in the sub-analysis of SSLs and hyperplastic polyps. Conclusions: TXI provided higher visibility than did WLI for serrated, colorectal polyps, including SSLs.
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Affiliation(s)
- Toshihiro Nishizawa
- Gastroenterology, Toyoshima Endoscopy Clinic, Tokyo 157-0066, Japan; (T.N.); (O.T.); (S.Y.); (C.U.); (K.K.); (M.O.); (T.Y.)
- Department of Gastroenterology and Hepatology, International University of Health and Welfare, Narita Hospital, Narita 286-8520, Japan; (M.M.); (H.E.)
| | - Osamu Toyoshima
- Gastroenterology, Toyoshima Endoscopy Clinic, Tokyo 157-0066, Japan; (T.N.); (O.T.); (S.Y.); (C.U.); (K.K.); (M.O.); (T.Y.)
| | - Shuntaro Yoshida
- Gastroenterology, Toyoshima Endoscopy Clinic, Tokyo 157-0066, Japan; (T.N.); (O.T.); (S.Y.); (C.U.); (K.K.); (M.O.); (T.Y.)
| | - Chie Uekura
- Gastroenterology, Toyoshima Endoscopy Clinic, Tokyo 157-0066, Japan; (T.N.); (O.T.); (S.Y.); (C.U.); (K.K.); (M.O.); (T.Y.)
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, Tokyo 113-8655, Japan;
| | - Ken Kurokawa
- Gastroenterology, Toyoshima Endoscopy Clinic, Tokyo 157-0066, Japan; (T.N.); (O.T.); (S.Y.); (C.U.); (K.K.); (M.O.); (T.Y.)
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, Tokyo 113-8655, Japan;
| | - Munkhbayar Munkhjargal
- Department of Gastroenterology and Hepatology, International University of Health and Welfare, Narita Hospital, Narita 286-8520, Japan; (M.M.); (H.E.)
| | - Miho Obata
- Gastroenterology, Toyoshima Endoscopy Clinic, Tokyo 157-0066, Japan; (T.N.); (O.T.); (S.Y.); (C.U.); (K.K.); (M.O.); (T.Y.)
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, Tokyo 113-8655, Japan;
| | - Tomoharu Yamada
- Gastroenterology, Toyoshima Endoscopy Clinic, Tokyo 157-0066, Japan; (T.N.); (O.T.); (S.Y.); (C.U.); (K.K.); (M.O.); (T.Y.)
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, Tokyo 113-8655, Japan;
| | - Mitsuhiro Fujishiro
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, Tokyo 113-8655, Japan;
| | - Hirotoshi Ebinuma
- Department of Gastroenterology and Hepatology, International University of Health and Welfare, Narita Hospital, Narita 286-8520, Japan; (M.M.); (H.E.)
| | - Hidekazu Suzuki
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Tokai University School of Medicine, Isehara 259-1193, Japan
- Correspondence: ; Tel.: +81-463-93-1121
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Trovato A, Turshudzhyan A, Tadros M. Serrated lesions: A challenging enemy. World J Gastroenterol 2021; 27:5625-5629. [PMID: 34629791 PMCID: PMC8473594 DOI: 10.3748/wjg.v27.i34.5625] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Revised: 06/11/2021] [Accepted: 08/17/2021] [Indexed: 02/06/2023] Open
Abstract
The serrated pathway accounts for 30%-35% of colorectal cancer (CRC). Unlike hyperplastic polyps, both sessile serrated lesions (SSLs) and traditional serrated adenomas are premalignant lesions, yet SSLs are considered to be the principal serrated precursor of CRCs. Serrated lesions represent a challenge in detection, classification, and removal–contributing to post-colonoscopy cancer. Therefore, it is of the utmost importance to characterize these lesions properly to ensure complete removal. A retrospective cohort study developed a diagnostic scoring system for SSLs to facilitate their detection endoscopically and subsequent removal. From the study, it can be ascertained that both indistinct border and mucus cap are essential in both recognizing and diagnosing serrated lesions. The proximal colon poses technical challenges for some endoscopists, which is why high-quality colonoscopy plays such an important role. The indistinct border of some SSLs poses another challenge due to difficult complete resection. Overall, it is imperative that gastroenterologists use the key features of mucus cap, indistinct borders, and size of at least five millimeters along with a high-quality colonoscopy and a good bowel preparation to improve the SSL detection rate.
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Affiliation(s)
- Alexa Trovato
- Albany Medical College, Albany, NY 12208, United States
| | - Alla Turshudzhyan
- Department of Medicine, University of Connecticut, School of Medicine, Farmingdale, CT 06032, United States
| | - Micheal Tadros
- Department of Gastroenterology, Albany Medical Center, Albany, NY 12208, United States
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