1
|
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.
Collapse
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
| |
Collapse
|
2
|
Chaptini LA, Jalloul S, Karam K. Cold snare polypectomy: A closer look at the efficacy and limitations for polyps 10-20 mm in size. World J Gastrointest Endosc 2024; 16:445-450. [PMID: 39155992 PMCID: PMC11325874 DOI: 10.4253/wjge.v16.i8.445] [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: 05/26/2024] [Revised: 06/29/2024] [Accepted: 07/29/2024] [Indexed: 08/01/2024] Open
Abstract
Current guidelines recommend cold snare polypectomy for polyps less than 10 mm in size. Conversely, endoscopic mucosal resection is still the preferred technique for larger polyps. Concerns regarding cold snare polypectomy for larger polyps revolve around the difficulty in conducting en-bloc resection (resulting in piecemeal removal), and the potential for local residual polyp tissue and a high rate of recurrence. On the other hand, cold snare technique has the advantages of shortening procedure time, reducing delayed bleeding risks and lowering cost of treatment. Numerous ongoing and recent studies are focused on evaluating the risks and benefits of this technique for polyps larger than 10 mm, with the goal of providing clear guidelines in the near future. The aim of this editorial is to provide our readers with an overview regarding this subject and the latest developments surrounding it.
Collapse
Affiliation(s)
- Louis A Chaptini
- Department of Medicine, Digestive Diseases, Yale School of Medicine, New Haven, CT 06510, United States
- Department of Medicine, Gastroenterology, University of Balamand, Balamand 100, Lebanon
| | - Sarah Jalloul
- Department of Medicine, Gastroenterology, University of Balamand, Balamand 100, Lebanon
| | - Karam Karam
- Department of Medicine, Gastroenterology, University of Balamand, Balamand 100, Lebanon
| |
Collapse
|
3
|
Helderman NC, van Leerdam ME, Kloor M, Ahadova A, Nielsen M. Emerge of colorectal cancer in Lynch syndrome despite colonoscopy surveillance: A challenge of hide and seek. Crit Rev Oncol Hematol 2024; 197:104331. [PMID: 38521284 DOI: 10.1016/j.critrevonc.2024.104331] [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: 01/13/2024] [Revised: 03/09/2024] [Accepted: 03/20/2024] [Indexed: 03/25/2024] Open
Abstract
Even with colonoscopy surveillance, Lynch syndromes (LS) carriers still develop colorectal cancer (CRC). The cumulative incidence of CRCs under colonoscopy surveillance varies depending on the affected mismatch repair (MMR) gene. However, the precise mechanisms driving these epidemiological patterns remain incompletely understood. In recent years, several potential mechanisms explaining the occurrence of CRCs during colonoscopy surveillance have been proposed in individuals with and without LS. These encompass biological factors like concealed/accelerated carcinogenesis through a bypassed adenoma stage and accelerated progression from adenomas. Alongside these, various colonoscopy-related factors may contribute to formation of CRCs under colonoscopy surveillance, like missed yet detectable (pre)cancerous lesions, detected yet incompletely removed (pre)cancerous lesions, and colonoscopy-induced carcinogenesis due to tumor cell reimplantation. In this comprehensive literature update, we reviewed these potential factors and evaluated their relevance to each MMR group in an attempt to raise further awareness and stimulate research regarding this conflicting phenomenon.
Collapse
Affiliation(s)
- Noah C Helderman
- Department of Clinical Genetics, Leiden University Medical Center, Leiden, the Netherlands.
| | - Monique E van Leerdam
- Department of Gastroenterology and Hepatology, Leiden University Medical Center, Leiden, the Netherlands; Department of Gastrointestinal Oncology, Netherlands Cancer Institute, Amsterdam, the Netherlands
| | - Matthias Kloor
- Department of Applied Tumor Biology, Heidelberg University Hospital, Clinical Cooperation Unit Applied Tumor Biology, German Cancer Research Centre (DKFZ), Heidelberg, Germany
| | - Aysel Ahadova
- Department of Applied Tumor Biology, Heidelberg University Hospital, Clinical Cooperation Unit Applied Tumor Biology, German Cancer Research Centre (DKFZ), Heidelberg, Germany
| | - Maartje Nielsen
- Department of Clinical Genetics, Leiden University Medical Center, Leiden, the Netherlands
| |
Collapse
|
4
|
Copland AP, Kahi CJ, Ko CW, Ginsberg GG. AGA Clinical Practice Update on Appropriate and Tailored Polypectomy: Expert Review. Clin Gastroenterol Hepatol 2024; 22:470-479.e5. [PMID: 38032585 DOI: 10.1016/j.cgh.2023.10.012] [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: 05/03/2023] [Revised: 10/03/2023] [Accepted: 10/10/2023] [Indexed: 12/01/2023]
Abstract
DESCRIPTION In this Clinical Practice Update (CPU), we provide guidance on the appropriate use of different polypectomy techniques. We focus on polyps <2 cm in size that are most commonly encountered by the practicing endoscopist, including use of classification systems to characterize polyps and various polypectomy methods. We review characteristics of polyps that require complex polypectomy techniques and provide guidance on which types of polyps require more advanced management by a therapeutic endoscopist or surgeon. This CPU does not provide a detailed review of complex polypectomy techniques, such as endoscopic submucosal dissection, which should only be performed by endoscopists with advanced training. METHODS This expert review was commissioned and approved by the American Gastroenterological Association (AGA) Institute CPU Committee and the AGA Governing Board to provide timely guidance on a topic of high clinical importance to the AGA membership, and underwent internal peer review by the CPU Committee and external peer review through standard procedures of Clinical Gastroenterology and Hepatology. These Best Practice Advice statements were drawn from a review of the published literature and from expert opinion. Because systematic reviews were not performed, these Best Practice Advice statements do not carry formal ratings regarding the quality of evidence or strength of the presented considerations. BEST PRACTICE ADVICE 1: A structured visual assessment using high-definition white light and/or electronic chromoendoscopy and with photodocumentation should be conducted for all polyps found during routine colonoscopy. Closely inspect colorectal polyps for features of submucosally invasive cancer. BEST PRACTICE ADVICE 2: Use cold snare polypectomy for polyps <10 mm in size. Cold forceps polypectomy can alternatively be used for 1- to 3-mm polyps where cold snare polypectomy is technically difficult. BEST PRACTICE ADVICE 3: Do not use hot forceps polypectomy. BEST PRACTICE ADVICE 4: Clinicians should be familiar with various techniques, such as cold and hot snare polypectomy and endoscopic mucosal resection, to ensure effective, safe, and optimal resection of intermediate-size polyps (10-19 mm). BEST PRACTICE ADVICE 5: Consider using lifting agents or underwater endoscopic mucosal resection for removal of sessile polyps 10-19 mm in size. BEST PRACTICE ADVICE 6: Serrated polyps should be resected using cold resection techniques. Submucosal injection may be helpful for polyps >10 mm if margins cannot be well delineated. BEST PRACTICE ADVICE 7: Use hot snare polypectomy to remove pedunculated lesions >10 mm in size. BEST PRACTICE ADVICE 8: Do not routinely use clips to close resection sites for polyps <20 mm. BEST PRACTICE ADVICE 9: Refer patients with polyps to endoscopic referral centers in the context of size ≥20 mm, challenging polypectomy location, or recurrent polyp at a prior polypectomy site. BEST PRACTICE ADVICE 10: Tattoo lesions that may need future localization at endoscopy or surgery. Tattoos should be placed in a location that will not interfere with subsequent attempts at endoscopic resection. BEST PRACTICE ADVICE 11: Refer patients with nonpedunculated polyps with clear evidence of submucosally invasive cancer for surgical evaluation. BEST PRACTICE ADVICE 12: Understand the endoscopy suite's electrosurgical generator settings appropriate for polypectomy or postpolypectomy thermal techniques.
Collapse
Affiliation(s)
- Andrew P Copland
- Division of Gastroenterology and Hepatology, University of Virginia Health System, Charlottesville, Virginia
| | - Charles J Kahi
- Indiana University School of Medicine, Richard L. Roudebush VA Medical Center, Indianapolis, Indiana
| | - Cynthia W Ko
- Department of Medicine, University of Washington School of Medicine, Seattle, Washington.
| | - Gregory G Ginsberg
- Division of Gastroenterology, Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania
| |
Collapse
|
5
|
Mou Y, Ye L, Qin X, Feng R, Zhang L, Hu Q, Cao T, Zhou X, Wen W, Zhang C, Chen Z, Liu Y, Yang Z, Huo T, Pan F, Li X, Hu B. Impact of Submucosal Saline Injection During Cold Snare Polypectomy for Colorectal Polyps Sized 3-9 mm: A Multicenter Randomized Controlled Trial. Am J Gastroenterol 2023; 118:1848-1854. [PMID: 37207320 DOI: 10.14309/ajg.0000000000002329] [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: 02/01/2023] [Accepted: 04/23/2023] [Indexed: 05/21/2023]
Abstract
INTRODUCTION The role of submucosal injection during cold snare polypectomy (CSP) remains uncertain. In this study, we investigated the impact of submucosal saline injection during CSP for colorectal polyps sized 3-9 mm. METHODS This was a multicenter randomized controlled trial conducted in 6 Chinese centers between July and September 2020 (ChiCTR2000034423). Patients with nonpedunculated colorectal polyps sized 3-9 mm were randomized in a 1:1 ratio to either CSP with submucosal injection (SI-CSP) or conventional CSP (C-CSP). The primary outcome was the incomplete resection rate (IRR). Secondary outcomes included procedure time, intraprocedural bleeding, delayed bleeding, and perforation. RESULTS One hundred fifty patients with 234 polyps in the SI-CSP group and 150 patients with 216 polyps in the C-CSP group were included in the analysis. The IRR was not decreased in the SI-CSP group compared with that in the C-CSP group (1.7% vs 1.4%, P = 1.000). The median procedure time in the SI-CSP group was significantly longer than that in the C-CSP group (108 seconds vs 48 seconds, P < 0.001). The incidences of intraprocedural bleeding and delayed bleeding were not significantly different between the 2 groups ( P = 0.531 and P = 0.250, respectively). There was no perforation in either group. DISCUSSION Submucosal saline injection during CSP for colorectal polyps sized 3-9 mm did not decrease the IRR or reduce adverse events but prolonged the procedure time.
Collapse
Affiliation(s)
- Yi Mou
- Department of Gastroenterology and Hepatology, West China Hospital, Sichuan University, Chengdu, China
| | - Liansong Ye
- Department of Gastroenterology and Hepatology, West China Hospital, Sichuan University, Chengdu, China
| | - Xiaobo Qin
- Department of Gastroenterology, The First Veterans Hospital of Sichuan Province, Chengdu, China
| | - Rui Feng
- Department of Gastroenterology, The First Veterans Hospital of Sichuan Province, Chengdu, China
| | - Lifan Zhang
- Department of Gastroenterology and Hepatology, West China Hospital, Sichuan University, Chengdu, China
| | - Qin Hu
- Department of Gastroenterology and Hepatology, West China Hospital, Sichuan University, Chengdu, China
| | - Tingting Cao
- Department of Gastroenterology and Hepatology, West China Hospital, Sichuan University, Chengdu, China
| | - Xinyue Zhou
- Department of Gastroenterology and Hepatology, West China Hospital, Sichuan University, Chengdu, China
| | - Wu Wen
- Department of Gastroenterology, Chengdu Second People's Hospital, Chengdu, China
| | - Chuanming Zhang
- Department of Gastroenterology, Chengdu Second People's Hospital, Chengdu, China
| | - Zonghua Chen
- Department of Gastroenterology, Yibin Second People's Hospital, Yibin, China
| | - Yi Liu
- Department of Gastroenterology, Yibin Second People's Hospital, Yibin, China
| | - Zhimin Yang
- Department of Gastroenterology, SheHong People's Hospital, Shehong, China
| | - Tao Huo
- Department of Gastroenterology, SheHong People's Hospital, Shehong, China
| | - Fang Pan
- Department of Gastroenterology, The Affiliated Huai'an No. 1 People's Hospital, Nanjing Medical University, Huaian, China
| | - Xuelian Li
- Department of Gastroenterology, The Affiliated Huai'an No. 1 People's Hospital, Nanjing Medical University, Huaian, China
| | - Bing Hu
- Department of Gastroenterology and Hepatology, West China Hospital, Sichuan University, Chengdu, China
| |
Collapse
|
6
|
Capogreco A, Alfarone L, Massimi D, Repici A. Cold resection for colorectal polyps: where we are and where we are going? Expert Rev Gastroenterol Hepatol 2023; 17:719-730. [PMID: 37318101 DOI: 10.1080/17474124.2023.2223976] [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: 04/03/2023] [Accepted: 06/07/2023] [Indexed: 06/16/2023]
Abstract
INTRODUCTION Endoscopic resection of colonic precancerous lesions has been demonstrated to significantly decrease colorectal cancer (CRC) incidence and mortality. Among resection techniques, cold snare polypectomy (CSP) has been shown as a highly feasible, effective and safe option and is widely used in clinical practice, being regarded as the first-line technique for removal of small and diminutive colorectal polyps. On the other hand, conventional hot snare polypectomy (HSP) and endoscopic mucosal resection (EMR), namely the gold standard treatments for larger polyps, may be occasionally associated to complications due to electrocautery injury. AREAS COVERED To overcome these shortcomings of electrocautery-based resection techniques, in the last few years CSP has been increasingly assessed as a treatment option for additional indications, with a focus on nonpedunculated colorectal polyps ≥10 mm. EXPERT OPINION This review aims to present current and widened indications of CSP discussing the latest findings from the most remarkable studies, with an insight into technical issues, novelties and potential advances in the near future.
Collapse
Affiliation(s)
- Antonio Capogreco
- Department of Gastroenterology, Endoscopy Unit, IRCCS Humanitas Research Hospital, Rozzano, Italy
| | - Ludovico Alfarone
- Department of Gastroenterology, Endoscopy Unit, IRCCS Humanitas Research Hospital, Rozzano, Italy
- Department of biomedical scienses, Humanitas University, Milan, Italy
| | - Davide Massimi
- Department of Gastroenterology, Endoscopy Unit, IRCCS Humanitas Research Hospital, Rozzano, Italy
| | - Alessandro Repici
- Department of biomedical scienses, Humanitas University, Milan, Italy
| |
Collapse
|
7
|
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).
Collapse
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
| |
Collapse
|
8
|
Inoki K, Takamaru H, Furuhashi H, Kishida Y, Shimodate Y, Sumida Y, Hosotani K, Ueyama H, Furumoto Y, Hashimoto S, Takeuchi Y, Ichijima R, Yoshizawa Y, Suzuki T, Minoda Y, Mizukami K, Matsumura T, Kasai T, Yamamura T, Ohnita K, Hara K, Esaki M, Katagiri A, Ishikawa H, Gotoda T. Management of colorectal high-grade dysplasia or cancer resected by cold snare polypectomy: a multicenter exploratory study. J Gastroenterol 2023; 58:554-564. [PMID: 36935473 DOI: 10.1007/s00535-023-01980-1] [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: 08/18/2022] [Accepted: 03/02/2023] [Indexed: 03/21/2023]
Abstract
BACKGROUND The clinical course and surveillance strategy for patients who undergo cold snare polypectomy (CSP) for high-grade dysplasia (HGD) or cancer is unclear. We investigated the management of colorectal HGDs and cancers following CSP. METHODS This Japanese nationwide multicenter exploratory study was retrospectively conducted on patients who had undergone CSP for colorectal HGDs or cancers and follow-up colonoscopy at least once from 2014 to 2020. We investigated the detection rate of CSP scars, local recurrence rate (LRR), risk factors for local recurrence, and follow-up strategy. This study was registered with the University Hospital Medical Information Network (UMIN) Clinical Trials Registry (UMIN000043670). RESULTS We included 155 patients with 156 lesions. CSP scars were identified in 22 (31.4%), 41 (54.7%), and 10 (90.9%) patients with curative, borderline, and non-curative resection, respectively. Among them, residual tumors were observed in one (4.5%), six (14.6%), and three (30.0%) cases, respectively. The total LRR was 13.7% (95% confidence interval: 6.8-23.8). R1 resection cases (either horizontal or vertical margins positive for tumors) were associated with local recurrence (p = 0.031). Salvage endoscopic and surgical resections were performed on 21 and 10 patients, respectively. Among them, the proportion of endoscopically suspected residual tumors was significantly higher (p < 0.001) in the residual tumor-positive group (100%) than in the residual tumor-negative group (28.6%). CONCLUSIONS LRR after CSP for HGDs or cancers was 13.7% based on scar-identified cases. Salvage endoscopic or surgical resection should be performed according to the curability of the lesion and endoscopic findings during colonoscopic surveillance.
Collapse
Affiliation(s)
- Kazuya Inoki
- Division of Gastroenterology, Department of Medicine, Showa University School of Medicine, 1-5-8, Hatanodai, Shinagawa-Ku, Tokyo, 142-8666, Japan.
| | - Hiroyuki Takamaru
- Endoscopy Division, National Cancer Center Hospital, 5-1-1 Tsukiji, Chuo-Ku, Tokyo, 104-0045, Japan
| | - Hiroto Furuhashi
- Department of Endoscopy, The Jikei University School of Medicine, 3-25-8 Nishishinbashi, Minato-Ku, Tokyo, 105-8461, Japan
| | - Yoshihiro Kishida
- Division of Endoscopy, Shizuoka Cancer Center, 1007 Shimo-Nagakubo, Nagaizumi-Cho, Sunto-Gun, Shizuoka, 411-8777, Japan
| | - Yuichi Shimodate
- Department of Gastroenterology and Hepatology, Kurashiki Central Hospital, 1-1-1 Miwa, Kurashiki, Okayama, 710-8602, Japan
| | - Yorinobu Sumida
- Department of Gastroenterology, National Hospital Organization, Kyushu Medical Center, Clinical Research Institute, 1-8-1 Jigyouhama, Chuo-Ku, Fukuoka City, Fukuoka, 810-8563, Japan
| | - Kazuya Hosotani
- Department of Gastroenterology, Kobe City Medical Center, General Hospital, 2-1-1 Minatojima Minamicho, Chuo-Ku, Kobe City, Hyogo, 650-0047, Japan
| | - Hiroya Ueyama
- Department of Gastroenterology, Juntendo University School of Medicine, 2-1-1 Hongo, Bunkyo-Ku, Tokyo, 113-8421, Japan
| | - Yohei Furumoto
- Department of Gastroenterology, Tokyo Metropolitan Bokutoh Hospital, 4-23-15, Kotobashi, Sumida-Ku, Tokyo, 130-8575, Japan
| | - Shinichi Hashimoto
- Department of Gastroenterology and Hepatology, Yamaguchi University Graduate School of Medicine, 1-1-1, MinamiKogushi, Ube City, Yamaguchi Prefecture, 755-8505, Japan
| | - Yoji Takeuchi
- Department of Gastrointestinal Oncology, Osaka International Cancer Institute, 3-1-69 Otemae, Chuo-Ku, Osaka, 541-8567, Japan
| | - Ryoji Ichijima
- Division of Gastroenterology and Hepatology, Department of Medicine, Nihon University School of Medicine, 30-1 Ohyaguchi-Kami-Machi, Itabashi-Ku, Tokyo, 173-8610, Japan
| | - Yashiro Yoshizawa
- Department of Gastroenterology, Seirei Hamamatsu General Hospital, 2-12-12, Sumiyoshi, Naka-Ku, Hamamatsu-Shi, Shizuoka, 430-8558, Japan
| | - Takuto Suzuki
- Department of Endoscopy, Chiba Cancer Center, 666-2 Nitona-Cho, Chuo-Ku, Chiba, 260-8717, Japan
| | - Yosuke Minoda
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-Ku, Fukuoka, 812-8582, Japan
| | - Kazuhiro Mizukami
- Department of Gastroenterology, Faculty of Medicine, Oita University, 1-1 Idaigaoka, Hasama-Machi, Yufu City, Oita, 879-5593, Japan
| | - Tomoaki Matsumura
- Department of Gastroenterology, Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chuo-Ku, Chiba-Shi, Chiba, 260-8670, Japan
| | - Toyotaka Kasai
- Department of Gastroenterology, Fukaya Red Cross Hospital, 5-8-1, Kamishibachonishi, Fukaya City, Saitama, 366-0052, Japan
| | - Takeshi Yamamura
- Department of Gastroenterology and Hepatology, Nagoya University Graduate School of Medicine, 65 Tsurumai-Cho, Showa-Ku, Nagoya City, Aichi, 466-8560, Japan
| | - Ken Ohnita
- Department of Gastroenterology and Hepatology, Shunkaikai Inoue Hospital, 6-12, Takaramachi, Nagasaki City, Nagasaki, 850-0045, Japan
| | - Ken Hara
- Division of Gastroenterology, Hyogo College of Medicine, 1-1 Mukogawacho, Nishinomiya, Hyogo, 663-8501, Japan
| | - Mitsuru Esaki
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-Ku, Fukuoka, 812-8582, Japan
- Department of Gastroenterology, Kitakyushu Municipal Medical Center, 2-1-1 Bashaku Kokurakita-Ku, Kitakyushu City, Fukuoka, 802-8561, Japan
| | - Atsushi Katagiri
- Division of Gastroenterology, Department of Medicine, Showa University School of Medicine, 1-5-8, Hatanodai, Shinagawa-Ku, Tokyo, 142-8666, Japan
| | - Hideki Ishikawa
- Kyoto Prefectural University of Medicine, Kajii-Cho, Kawaramachi-Hirokoji, Kamigyo-Ku, Kyoto, 602-8566, Japan
| | - Takuji Gotoda
- Division of Gastroenterology and Hepatology, Department of Medicine, Nihon University School of Medicine, 30-1 Ohyaguchi-Kami-Machi, Itabashi-Ku, Tokyo, 173-8610, Japan
| |
Collapse
|
9
|
Shimodate Y, Mouri H, Mizuno M. Cold Snare Polypectomy for Large Sessile Polyp: Is it Really Ready? Clin Gastroenterol Hepatol 2023; 21:853-854. [PMID: 35526793 DOI: 10.1016/j.cgh.2022.04.020] [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] [Received: 04/12/2022] [Accepted: 04/26/2022] [Indexed: 02/07/2023]
Affiliation(s)
- Yuichi Shimodate
- Department of Gastroenterology and Hepatology, Kurashiki Central Hospital, Kurashiki, Okayama, Japan
| | - Hirokazu Mouri
- Department of Gastroenterology and Hepatology, Kurashiki Central Hospital, Kurashiki, Okayama, Japan
| | - Motowo Mizuno
- Department of Gastroenterology and Hepatology, Kurashiki Central Hospital, Kurashiki, Okayama, Japan
| |
Collapse
|
10
|
Ishibashi F, Suzuki S, Nagai M, Mochida K, Morishita T. Colorectal cold snare polypectomy: Current standard technique and future perspectives. Dig Endosc 2023; 35:278-286. [PMID: 35962754 DOI: 10.1111/den.14420] [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: 06/22/2022] [Accepted: 08/12/2022] [Indexed: 02/08/2023]
Abstract
It has been shown that resection of adenomatous colorectal polyps can reduce mortality due to colorectal cancer. In daily clinical practice, simpler and safer methods of colorectal polypectomy have been sought to enable endoscopists to resect all detected lesions. Among these, cold snare polypectomy (CSP) is widely used in clinical practice because of its advantages in shortening procedure time, reducing delayed bleeding risk, and lowering treatment costs, while maintaining a similar complete resection rate for lesions smaller than 10 mm when compared to conventional hot snare polypectomy. This review introduces the findings of previous studies that investigated the efficacy and safety of the CSP procedure for nonpedunculated polyps smaller than 10 mm, and describes technical points to remember when practicing CSP based on the latest evidence, including using a thin wire snare specifically designed for CSP, and observing the surrounding mucosa of the resection site with chromoendoscopy or image-enhanced endoscopy to ensure that there is no residual lesion. This review also describes the potential of expanding the indication of CSP as a treatment for lesions larger than 10 mm, those with pedunculated morphology, those located near the appendiceal orifice, and for patients under continuous antithrombotic agent therapy. Finally, the perspective on optimal treatments for recurrent lesions after CSP is also discussed, despite the limited related evidence and data.
Collapse
Affiliation(s)
- Fumiaki Ishibashi
- Department of Gastroenterology, International University of Health and Welfare Ichikawa Hospital, Chiba, Japan
| | - Sho Suzuki
- Department of Gastroenterology, International University of Health and Welfare Ichikawa Hospital, Chiba, Japan
| | - Mizuki Nagai
- Department of Gastroenterology, International University of Health and Welfare Ichikawa Hospital, Chiba, Japan
| | - Kentaro Mochida
- Department of Gastroenterology, International University of Health and Welfare Ichikawa Hospital, Chiba, Japan
| | - Tetsuo Morishita
- Department of Gastroenterology, International University of Health and Welfare Ichikawa Hospital, Chiba, Japan
| |
Collapse
|
11
|
Ma X, Yang L, Leung J, Sheng J, He Y. Reply. Clin Gastroenterol Hepatol 2023; 21:854-855. [PMID: 35811049 DOI: 10.1016/j.cgh.2022.05.052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Accepted: 05/31/2022] [Indexed: 02/07/2023]
Affiliation(s)
- Xianzong Ma
- Medical School of Chinese PLA, Beijing, China; Department of Gastroenterology, Seventh Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Lang Yang
- Department of Gastroenterology, Seventh Medical Center of Chinese PLA General Hospital, Beijing, China; Senior Department of Gastroenterology, First Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Joseph Leung
- Section of Gastroenterology, Sacramento VA Medical Center, Mather, California
| | - Jianqiu Sheng
- Department of Gastroenterology, Seventh Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Yuqi He
- Department of Gastroenterology, Seventh Medical Center of Chinese PLA General Hospital, Beijing, China
| |
Collapse
|
12
|
Haumesser C, Zarandi-Nowroozi M, Taghiakbari M, Djinbachian R, Abou Khalil M, Sidani S, Liu Chen Kiow J, Panzini B, Popescu Crainic I, von Renteln D. Comparing size measurements of simulated colorectal polyp size and morphology groups when using a virtual scale endoscope or visual size estimation: Blinded randomized controlled trial. Dig Endosc 2022. [PMID: 36514183 DOI: 10.1111/den.14498] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/16/2022] [Accepted: 12/11/2022] [Indexed: 12/15/2022]
Abstract
OBJECTIVES The virtual scale endoscope (VSE) allows projection of a virtual scale onto colorectal polyps allowing real-time size measurements. We studied the relative accuracy of VSE compared to visual assessment (VA) for the measuring simulated polyps of different size and morphology groups. METHODS We conducted a blinded randomized controlled trial using simulated polyps within a colon model. Sixty simulated polyps were evenly distributed across four size groups (1-5, >5-9.9, 10-19.9, and ≥20 mm) and three Paris morphology groups (flat, sessile, and pedunculated). Six endoscopists performed polyp size measurements using random allocation of either VA or VSE. RESULTS A total of 359 measurements were completed. The relative accuracy of VSE was significantly higher when compared to VA for all size groups >5 mm (P = 0.004, P < 0.001, P < 0.001). For polyps ≤5 mm, the relative accuracy of VSE compared to VA was not significantly higher (P = 0.186). The relative accuracy of VSE was significantly higher when compared to VA for all morphology groups. VSE misclassified a lower percentage of >5 mm polyps as ≤5 mm (2.9%), ≥10 mm polyps as <10 mm (5.5%), and ≥20 mm polyps as <20 mm (21.7%) compared to VA (11.2%, 24.7%, and 52.3% respectively; P = 0.008, P < 0.001, and P = 0.003). CONCLUSION Virtual scale endoscope had significantly higher relative accuracies for every polyp size group or morphology type aside from diminutive. VSE enables the endoscopist to better classify polyps into correct size categories at clinically relevant size thresholds of 5, 10, and 20 mm.
Collapse
Affiliation(s)
- Claire Haumesser
- Montreal University Hospital Research Center, Montreal, Canada.,University of Montreal Medical School, Montreal, Canada
| | - Melissa Zarandi-Nowroozi
- Montreal University Hospital Research Center, Montreal, Canada.,Division of Internal Medicine, Montreal University Hospital Center (CHUM), Montreal, Canada
| | - Mahsa Taghiakbari
- Montreal University Hospital Research Center, Montreal, Canada.,Division of Gastroenterology, Montreal University Hospital Center (CHUM), Montreal, Canada
| | - Roupen Djinbachian
- Montreal University Hospital Research Center, Montreal, Canada.,Division of Gastroenterology, Montreal University Hospital Center (CHUM), Montreal, Canada
| | - Maria Abou Khalil
- Montreal University Hospital Research Center, Montreal, Canada.,Division of Gastroenterology, Montreal University Hospital Center (CHUM), Montreal, Canada
| | - Sacha Sidani
- Montreal University Hospital Research Center, Montreal, Canada.,Division of Gastroenterology, Montreal University Hospital Center (CHUM), Montreal, Canada
| | - Jeremy Liu Chen Kiow
- Montreal University Hospital Research Center, Montreal, Canada.,Division of Gastroenterology, Montreal University Hospital Center (CHUM), Montreal, Canada
| | - Benoit Panzini
- Montreal University Hospital Research Center, Montreal, Canada.,Division of Gastroenterology, Montreal University Hospital Center (CHUM), Montreal, Canada
| | - Ioana Popescu Crainic
- Montreal University Hospital Research Center, Montreal, Canada.,University of Montreal Medical School, Montreal, Canada
| | - Daniel von Renteln
- Montreal University Hospital Research Center, Montreal, Canada.,Division of Gastroenterology, Montreal University Hospital Center (CHUM), Montreal, Canada
| |
Collapse
|
13
|
Rex DK, Anderson JC, Pohl H, Lahr RE, Judd S, Antaki F, Lilley K, Castelluccio PF, Vemulapalli KC. Cold versus hot snare resection with or without submucosal injection of 6- to 15-mm colorectal polyps: a randomized controlled trial. Gastrointest Endosc 2022; 96:330-338. [PMID: 35288147 DOI: 10.1016/j.gie.2022.03.006] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Accepted: 03/03/2022] [Indexed: 02/07/2023]
Abstract
BACKGROUND AND AIMS Cold snare resection of colorectal lesions has been found to be safe and effective for an expanding set of colorectal lesions. In this study, we sought to understand the efficacy of simple cold snare resection and cold EMR versus hot snare resection and hot EMR for colorectal lesions 6 to 15 mm in size. METHODS At 3 U.S. centers, 235 patients with 286 colorectal lesions 6 to 15 mm in size were randomized to cold snaring, cold EMR, hot snaring, or hot EMR for nonpedunculated colorectal lesions 6 to 15 mm in size. The primary outcome was complete resection determined by 4 biopsy samples from the defect margin and 1 biopsy sample from the center of the resection defect. RESULTS The overall incomplete resection rate was 2.4% (95% confidence interval [CI], .8%-7.5%). All 7 incompletely removed polyps were 10 to 15 mm in size and removed by hot EMR (n = 4, 6.2%), hot snare (n = 2, 2.2%), or cold EMR (n = 1, 1.8%). Cold snaring had no incomplete resections, required less procedural time than the other methods, and was not associated with serious adverse events. CONCLUSIONS Cold snaring is a dominant resection technique for nonpedunculated colorectal lesions 6 to 15 mm in size. (Clinical trial registration number: NCT03462706.).
Collapse
Affiliation(s)
- Douglas K Rex
- Division of Gastroenterology/Hepatology, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Joseph C Anderson
- Department of Veterans Affairs Medical Center, White River Junction, Vermont, USA; The Geisel School of Medicine at Dartmouth, Hanover, New Hampshire, USA; Division of Gastroenterology and Hepatology, University of Connecticut School of Medicine, Farmington, Connecticut, USA
| | - Heiko Pohl
- Department of Veterans Affairs Medical Center, White River Junction, Vermont, USA; The Geisel School of Medicine at Dartmouth, Hanover, New Hampshire, USA
| | - Rachel E Lahr
- Division of Gastroenterology/Hepatology, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Stephanie Judd
- Division of Gastroenterology and Hepatology, John D. Dingell Veterans Affairs Medical Center and Wayne State University School of Medicine, Detroit, Michigan, USA
| | - Fadi Antaki
- Division of Gastroenterology and Hepatology, John D. Dingell Veterans Affairs Medical Center and Wayne State University School of Medicine, Detroit, Michigan, USA
| | - Kirthi Lilley
- Division of Gastroenterology and Hepatology, John D. Dingell Veterans Affairs Medical Center and Wayne State University School of Medicine, Detroit, Michigan, USA
| | - Peter F Castelluccio
- Department of Biostatistics and Health Data Science, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Krishna C Vemulapalli
- Division of Gastroenterology/Hepatology, Indiana University School of Medicine, Indianapolis, Indiana, USA
| |
Collapse
|
14
|
Suzuki S, Ikehara H, Gotoda T. Should large sessile serrated lesions be treated with cold snare polypectomy? Dig Endosc 2022; 34:485-487. [PMID: 35191084 DOI: 10.1111/den.14257] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Sho Suzuki
- Division of Gastroenterology and Hepatology, Department of Medicine, Nihon University School of Medicine, Tokyo, Japan
| | - Hisatomo Ikehara
- Division of Gastroenterology and Hepatology, Department of Medicine, Nihon University School of Medicine, Tokyo, Japan
| | - Takuji Gotoda
- Division of Gastroenterology and Hepatology, Department of Medicine, Nihon University School of Medicine, Tokyo, Japan
| |
Collapse
|