Skip to main content
Erschienen in: Surgical Endoscopy 8/2020

03.09.2019

Real-world learning curve analysis of colorectal endoscopic submucosal dissection: a large multicenter study

verfasst von: Kazuki Boda, Shiro Oka, Shinji Tanaka, Shinji Nagata, Masaki Kunihiro, Toshio Kuwai, Yuko Hiraga, Akira Furudoi, Koichi Nakadoi, Hideharu Okanobu, Tomohiro Miwata, Shiro Okamoto, Kazuaki Chayama

Erschienen in: Surgical Endoscopy | Ausgabe 8/2020

Einloggen, um Zugang zu erhalten

Abstract

Background

The current status of colorectal endoscopic submucosal dissection (ESD) performed by endoscopists without colorectal ESD experience is unknown. This study evaluated the quality of colorectal ESD performed by endoscopists without colorectal ESD experience.

Methods

We retrospectively examined the outcomes of 420 consecutive patients with 427 superficial colorectal tumors (male/female, 251/169; mean age, 69 years) who underwent ESD. The procedures were performed by 31 endoscopists without colorectal ESD experience using needle knife-type devices at 13 hospitals from October 2008 to June 2017. Cases were divided into the first and second phases according to the experience of the endoscopist: the first phase included the first 20 cases and the second phase included case 21 and beyond. We also identified factors associated with en bloc resection failure.

Results

Rates of colonic tumors, laterally spreading tumors of the non-granular type, poor scope operability, and severe submucosal fibrosis for the first phase were significantly lower than those for the second phase. The en bloc resection rates for the first and second phases were 93% and 96%, respectively. The factors associated with en bloc resection failure were poor scope operability (odds ratio [OR] 2.6; 95% confidence interval [CI] 1.0–6.5), severe submucosal fibrosis (OR 6.5; 95% CI 2.6–15.9), and the first 20 cases (OR 3.4; 95% CI 1.2–10.1).

Conclusion

Inexperienced endoscopists should initially perform colorectal ESD for tumors without severe submucosal fibrosis under good scope operability for at least 20 cases.
Literatur
1.
Zurück zum Zitat Cao Y, Liao C, Tan A, Gao Y, Mo Z, Gao F (2009) Meta-analysis of endoscopic submucosal dissection versus endoscopic mucosal resection for tumors of the gastrointestinal tract. Endoscopy 41:751–757CrossRef Cao Y, Liao C, Tan A, Gao Y, Mo Z, Gao F (2009) Meta-analysis of endoscopic submucosal dissection versus endoscopic mucosal resection for tumors of the gastrointestinal tract. Endoscopy 41:751–757CrossRef
2.
Zurück zum Zitat Terasaki M, Tanaka S, Oka S, Nakadoi K, Takata S, Kanao H, Yoshidas S, Chayama K (2012) Clinical outcomes of endoscopic submucosal dissection and endoscopic mucosal resection for laterally spreading tumors larger than 20 mm. J Gastroenterol Hepatol 27:734–740CrossRef Terasaki M, Tanaka S, Oka S, Nakadoi K, Takata S, Kanao H, Yoshidas S, Chayama K (2012) Clinical outcomes of endoscopic submucosal dissection and endoscopic mucosal resection for laterally spreading tumors larger than 20 mm. J Gastroenterol Hepatol 27:734–740CrossRef
3.
Zurück zum Zitat Oka S, Tanaka S, Saito Y, Iishi H, Kudo SE, Ikematsu H, Igarashi M, Saitoh Y, Inoue Y, Kobayashi K, Hisabe T, Tsuruta O, Sano Y, Yamano H, Shimizu S, Yahagi N, Watanabe T, Nakamura H, Fujii T, Ishikawa H, Sugihara K (2015) Local recurrence after endoscopic resection for large colorectal neoplasia: a multicenter prospective study in Japan. Am J Gastroenterol 110:697–707CrossRef Oka S, Tanaka S, Saito Y, Iishi H, Kudo SE, Ikematsu H, Igarashi M, Saitoh Y, Inoue Y, Kobayashi K, Hisabe T, Tsuruta O, Sano Y, Yamano H, Shimizu S, Yahagi N, Watanabe T, Nakamura H, Fujii T, Ishikawa H, Sugihara K (2015) Local recurrence after endoscopic resection for large colorectal neoplasia: a multicenter prospective study in Japan. Am J Gastroenterol 110:697–707CrossRef
4.
Zurück zum Zitat Tamaru Y, Oka S, Tanaka S, Hiraga Y, Kunihiro M, Nagata S, Furudoi A, Ninomiya Y, Asayama N, Shigita K, Nishiyama S, Hayashi N, Chayama K (2016) Endoscopic submucosal dissection for anorectal tumor with hemorrhoids close to the dentate line: a multicenter study of Hiroshima GI Endoscopy Study Group. Surg Endosc 30:4425–4431CrossRef Tamaru Y, Oka S, Tanaka S, Hiraga Y, Kunihiro M, Nagata S, Furudoi A, Ninomiya Y, Asayama N, Shigita K, Nishiyama S, Hayashi N, Chayama K (2016) Endoscopic submucosal dissection for anorectal tumor with hemorrhoids close to the dentate line: a multicenter study of Hiroshima GI Endoscopy Study Group. Surg Endosc 30:4425–4431CrossRef
5.
Zurück zum Zitat Boda K, Oka S, Tanaka S, Tanaka H, Matsumoto K, Yamashita K, Sumimoto K, Hirano D, Tamaru Y, Ninomiya Y, Hayashi N, Chayama K (2018) Short-term outcomes of endoscopic submucosal dissection for superficial cecal tumors: a comparison between extension and nonextension into the appendiceal orifice. Ther Adv Gastroenterol 11:1756284818772794CrossRef Boda K, Oka S, Tanaka S, Tanaka H, Matsumoto K, Yamashita K, Sumimoto K, Hirano D, Tamaru Y, Ninomiya Y, Hayashi N, Chayama K (2018) Short-term outcomes of endoscopic submucosal dissection for superficial cecal tumors: a comparison between extension and nonextension into the appendiceal orifice. Ther Adv Gastroenterol 11:1756284818772794CrossRef
6.
Zurück zum Zitat Watanabe T, Itabashi M, Shimada Y, Tanaka S, Ito Y, Ajioka Y, Hamaguchi T, Hyodo I, Igarashi M, Ishida H, Ishihara S, Ishiguro M, Kanemitsu Y, Kokudo N, Muro K, Ochiai A, Oguchi M, Ohkura Y, Saito Y, Sakai Y, Ueno H, Yoshino T, Boku N, Fujimori T, Koinuma N, Morita T, Nishimura G, Sakata Y, Takahashi K, Tsuruta O, Yamaguchi T, Yoshida M, Yamaguchi N, Kotake K, Sugihara K (2015) Japanese Society for Cancer of the Colon and Rectum (JSCCR) Guidelines 2014 for treatment of colorectal cancer. Int J Clin Oncol 20:207–239CrossRef Watanabe T, Itabashi M, Shimada Y, Tanaka S, Ito Y, Ajioka Y, Hamaguchi T, Hyodo I, Igarashi M, Ishida H, Ishihara S, Ishiguro M, Kanemitsu Y, Kokudo N, Muro K, Ochiai A, Oguchi M, Ohkura Y, Saito Y, Sakai Y, Ueno H, Yoshino T, Boku N, Fujimori T, Koinuma N, Morita T, Nishimura G, Sakata Y, Takahashi K, Tsuruta O, Yamaguchi T, Yoshida M, Yamaguchi N, Kotake K, Sugihara K (2015) Japanese Society for Cancer of the Colon and Rectum (JSCCR) Guidelines 2014 for treatment of colorectal cancer. Int J Clin Oncol 20:207–239CrossRef
7.
Zurück zum Zitat Oka S, Tanaka S, Kanao H, Ishikawa H, Watanabe T, Igarashi M, Saito Y, Ikematsu H, Kobayashi K, Inoue Y, Yahagi N, Tsuda S, Simizu S, Iishi H, Yamano H, Kudo SE, Tsuruta O, Tamura S, Saito Y, Cho E, Fujii T, Sano Y, Nakamura H, Sugihara K, Muto T (2010) Current status in the occurrence of postoperative bleeding, perforation and residual/local recurrence during colonoscopic treatment in Japan. Dig Endosc 22:376–380CrossRef Oka S, Tanaka S, Kanao H, Ishikawa H, Watanabe T, Igarashi M, Saito Y, Ikematsu H, Kobayashi K, Inoue Y, Yahagi N, Tsuda S, Simizu S, Iishi H, Yamano H, Kudo SE, Tsuruta O, Tamura S, Saito Y, Cho E, Fujii T, Sano Y, Nakamura H, Sugihara K, Muto T (2010) Current status in the occurrence of postoperative bleeding, perforation and residual/local recurrence during colonoscopic treatment in Japan. Dig Endosc 22:376–380CrossRef
8.
Zurück zum Zitat Niikura R, Yasunaga H, Yamada A, Matsui H, Fushimi K, Hirata Y, Koike K (2016) Factors predicting adverse events associated with therapeutic colonoscopy for colorectal neoplasia: a retrospective nationwide study in Japan. Gastrointest Endosc 84:971.e6–982.e6CrossRef Niikura R, Yasunaga H, Yamada A, Matsui H, Fushimi K, Hirata Y, Koike K (2016) Factors predicting adverse events associated with therapeutic colonoscopy for colorectal neoplasia: a retrospective nationwide study in Japan. Gastrointest Endosc 84:971.e6–982.e6CrossRef
9.
Zurück zum Zitat Kuwai T, Yamaguchi T, Imagawa H, Sumida Y, Takasago T, Miyasako Y, Nishimura T, Iio S, Yamaguchi A, Kouno H, Kohno H, Ishaq S (2017) Endoscopic submucosal dissection of early colorectal neoplasms with a monopolar scissor-type knife: short- to long-term outcomes. Endoscopy 49:913–918CrossRef Kuwai T, Yamaguchi T, Imagawa H, Sumida Y, Takasago T, Miyasako Y, Nishimura T, Iio S, Yamaguchi A, Kouno H, Kohno H, Ishaq S (2017) Endoscopic submucosal dissection of early colorectal neoplasms with a monopolar scissor-type knife: short- to long-term outcomes. Endoscopy 49:913–918CrossRef
10.
Zurück zum Zitat Tanaka S, Kashida H, Saito Y, Yahagi N, Yamano H, Saito S, Hisabe T, Yao T, Watanabe M, Yoshida M, Kudo SE, Tsuruta O, Sugihara K, Watanabe T, Saitoh Y, Igarashi M, Toyonaga T, Ajioka Y, Ichinose M, Matsui T, Sugita A, Sugano K, Fujimoto K, Tajiri H (2015) JGES guidelines for colorectal endoscopic submucosal dissection/endoscopic mucosal resection. Dig Endosc 27:417–434CrossRef Tanaka S, Kashida H, Saito Y, Yahagi N, Yamano H, Saito S, Hisabe T, Yao T, Watanabe M, Yoshida M, Kudo SE, Tsuruta O, Sugihara K, Watanabe T, Saitoh Y, Igarashi M, Toyonaga T, Ajioka Y, Ichinose M, Matsui T, Sugita A, Sugano K, Fujimoto K, Tajiri H (2015) JGES guidelines for colorectal endoscopic submucosal dissection/endoscopic mucosal resection. Dig Endosc 27:417–434CrossRef
11.
Zurück zum Zitat Tanaka S, Saitoh Y, Matsuda T, Igarashi M, Matsumoto T, Iwao Y, Suzuki Y, Nishida H, Watanabe T, Sugai T, Sugihara K, Tsuruta O, Hirata I, Hiwatashi N, Saito H, Watanabe M, Sugano K, Shimosegawa T (2015) Evidence-based clinical practice guidelines for management of colorectal polyps. J Gastroenterol 50:252–260CrossRef Tanaka S, Saitoh Y, Matsuda T, Igarashi M, Matsumoto T, Iwao Y, Suzuki Y, Nishida H, Watanabe T, Sugai T, Sugihara K, Tsuruta O, Hirata I, Hiwatashi N, Saito H, Watanabe M, Sugano K, Shimosegawa T (2015) Evidence-based clinical practice guidelines for management of colorectal polyps. J Gastroenterol 50:252–260CrossRef
12.
Zurück zum Zitat Hayashi N, Tanaka S, Nishiyama S, Terasaki M, Nakadoi K, Oka S, Yoshihara M, Chayama K (2014) Predictors of incomplete resection and perforation associated with endoscopic submucosal dissection for colorectal tumors. Gastrointest Endosc 79:427–435CrossRef Hayashi N, Tanaka S, Nishiyama S, Terasaki M, Nakadoi K, Oka S, Yoshihara M, Chayama K (2014) Predictors of incomplete resection and perforation associated with endoscopic submucosal dissection for colorectal tumors. Gastrointest Endosc 79:427–435CrossRef
13.
Zurück zum Zitat Matsumoto A, Tanaka S, Oba S, Kanao H, Oka S, Yoshihara M, Chayama K (2010) Outcome of endoscopic submucosal dissection for colorectal tumors accompanied by fibrosis. Scand J Gastroenterol 45:1329–1337CrossRef Matsumoto A, Tanaka S, Oba S, Kanao H, Oka S, Yoshihara M, Chayama K (2010) Outcome of endoscopic submucosal dissection for colorectal tumors accompanied by fibrosis. Scand J Gastroenterol 45:1329–1337CrossRef
14.
Zurück zum Zitat Tajiri H, Kitano S (2004) Complications associated with endoscopic mucosal resection: definition of bleeding that can be viewed as accidental. Dig Endosc 16:S134–S136CrossRef Tajiri H, Kitano S (2004) Complications associated with endoscopic mucosal resection: definition of bleeding that can be viewed as accidental. Dig Endosc 16:S134–S136CrossRef
15.
Zurück zum Zitat Boda K, Oka S, Tanaka S, Nagata S, Kunihiro M, Kuwai T, Hiraga Y, Furudoi A, Terasaki M, Nakadoi K, Higashiyama M, Okanobu H, Akagi M, Chayama K (2018) Clinical outcome of endoscopic submucosal dissection for colorectal tumors: a large multicenter retrospective study from the Hiroshima GI Endoscopy Research Group. Gastrointest Endosc 87:714–722CrossRef Boda K, Oka S, Tanaka S, Nagata S, Kunihiro M, Kuwai T, Hiraga Y, Furudoi A, Terasaki M, Nakadoi K, Higashiyama M, Okanobu H, Akagi M, Chayama K (2018) Clinical outcome of endoscopic submucosal dissection for colorectal tumors: a large multicenter retrospective study from the Hiroshima GI Endoscopy Research Group. Gastrointest Endosc 87:714–722CrossRef
16.
Zurück zum Zitat Hotta K, Oyama T, Shinohara T, Miyata Y, Takahashi A, Kitamura Y, Tomori A (2010) Learning curve for endoscopic submucosal dissection of large colorectal tumors. Dig Endosc 22:302–306CrossRef Hotta K, Oyama T, Shinohara T, Miyata Y, Takahashi A, Kitamura Y, Tomori A (2010) Learning curve for endoscopic submucosal dissection of large colorectal tumors. Dig Endosc 22:302–306CrossRef
17.
Zurück zum Zitat Jeon HH, Lee HS, Youn YH, Park JJ, Park H (2016) Learning curve analysis of colorectal endoscopic submucosal dissection (ESD) for laterally spreading tumors by endoscopists experienced in gastric ESD. Surg Endosc 30:2422–2430CrossRef Jeon HH, Lee HS, Youn YH, Park JJ, Park H (2016) Learning curve analysis of colorectal endoscopic submucosal dissection (ESD) for laterally spreading tumors by endoscopists experienced in gastric ESD. Surg Endosc 30:2422–2430CrossRef
18.
Zurück zum Zitat Yang DH, Jeong GH, Song Y, Park SH, Park SK, Kim JW, Jung KW, Kim KJ, Ye BD, Myung SJ, Yang SK, Kim JH, Park YS, Byeon JS (2015) The feasibility of performing colorectal endoscopic submucosal dissection without previous experience in performing gastric endoscopic submucosal dissection. Dig Dis Sci 60:3431–3441CrossRef Yang DH, Jeong GH, Song Y, Park SH, Park SK, Kim JW, Jung KW, Kim KJ, Ye BD, Myung SJ, Yang SK, Kim JH, Park YS, Byeon JS (2015) The feasibility of performing colorectal endoscopic submucosal dissection without previous experience in performing gastric endoscopic submucosal dissection. Dig Dis Sci 60:3431–3441CrossRef
19.
Zurück zum Zitat Shiga H, Ohba R, Matsuhashi T, Jin M, Kuroha M, Endo K, Moroi R, Kayaba S, Iijima K (2017) Feasibility of colorectal endoscopic submucosal dissection (ESD) carried out by endoscopists with no or little experience in gastric ESD. Dig Endosc 29:58–65CrossRef Shiga H, Ohba R, Matsuhashi T, Jin M, Kuroha M, Endo K, Moroi R, Kayaba S, Iijima K (2017) Feasibility of colorectal endoscopic submucosal dissection (ESD) carried out by endoscopists with no or little experience in gastric ESD. Dig Endosc 29:58–65CrossRef
20.
Zurück zum Zitat Sakamoto T, Saito Y, Nakamura F, Abe S, Takamaru H, Sekiguchi M, Yamada M, Nakajima T, Matsuda T, Yamagishi H, Kato H (2018) Short-term outcomes following endoscopic submucosal dissection of large protruding colorectal neoplasms. Endoscopy 50:606–612CrossRef Sakamoto T, Saito Y, Nakamura F, Abe S, Takamaru H, Sekiguchi M, Yamada M, Nakajima T, Matsuda T, Yamagishi H, Kato H (2018) Short-term outcomes following endoscopic submucosal dissection of large protruding colorectal neoplasms. Endoscopy 50:606–612CrossRef
21.
Zurück zum Zitat Niimi K, Fujishiro M, Goto O, Kodashima S, Koike K (2012) Safety and efficacy of colorectal endoscopic submucosal dissection by the trainee endoscopists. Dig Endosc 24:154–158CrossRef Niimi K, Fujishiro M, Goto O, Kodashima S, Koike K (2012) Safety and efficacy of colorectal endoscopic submucosal dissection by the trainee endoscopists. Dig Endosc 24:154–158CrossRef
22.
Zurück zum Zitat Sakamoto T, Saito Y, Fukunaga S, Nakajima T, Matsudas T (2011) Learning curve associated with colorectal endoscopic submucosal dissection for endoscopists experienced in gastric endoscopic submucosal dissection. Dis Colon Rectum 54:1307–1312CrossRef Sakamoto T, Saito Y, Fukunaga S, Nakajima T, Matsudas T (2011) Learning curve associated with colorectal endoscopic submucosal dissection for endoscopists experienced in gastric endoscopic submucosal dissection. Dis Colon Rectum 54:1307–1312CrossRef
23.
Zurück zum Zitat Ohata K, Nonaka K, Misumi Y, Tsunashima H, Takita M, Minato Y, Tashima T, Sakai E, Muramoto T, Matsuyama Y, Hiejima Y, Matsuhashi N (2016) Usefulness of training using animal models for colorectal endoscopic submucosal dissection: is experience performing gastric ESD really needed? Endosc Int Open 4:E333–E339CrossRef Ohata K, Nonaka K, Misumi Y, Tsunashima H, Takita M, Minato Y, Tashima T, Sakai E, Muramoto T, Matsuyama Y, Hiejima Y, Matsuhashi N (2016) Usefulness of training using animal models for colorectal endoscopic submucosal dissection: is experience performing gastric ESD really needed? Endosc Int Open 4:E333–E339CrossRef
24.
Zurück zum Zitat Imai K, Hotta K, Yamaguchi Y, Kakushima N, Tanaka M, Takizawa K, Kawata N, Matsubayashi H, Shimoda T, Mori K, Ono H (2016) Preoperative indicators of failure of en bloc resection or perforation in colorectal endoscopic submucosal dissection: implications for lesion stratification by technical difficulties during stepwise training. Gastrointest Endosc 83:954–962CrossRef Imai K, Hotta K, Yamaguchi Y, Kakushima N, Tanaka M, Takizawa K, Kawata N, Matsubayashi H, Shimoda T, Mori K, Ono H (2016) Preoperative indicators of failure of en bloc resection or perforation in colorectal endoscopic submucosal dissection: implications for lesion stratification by technical difficulties during stepwise training. Gastrointest Endosc 83:954–962CrossRef
25.
Zurück zum Zitat Takeuchi Y, Iishi H, Tanaka S, Saito Y, Ikematsu H, Kudo SE, Sano Y, Hisabe T, Yahagi N, Saitoh Y, Igarashi M, Kobayashi K, Yamano H, Shimizu S, Tsuruta O, Inoue Y, Watanabe T, Nakamura H, Fujii T, Uedo N, Shimokawa T, Ishikawa H, Sugihara K (2014) Factors associated with technical difficulties and adverse events of colorectal endoscopic submucosal dissection: retrospective exploratory factor analysis of a multicenter prospective cohort. Int J Colorectal Dis 29:1275–1284CrossRef Takeuchi Y, Iishi H, Tanaka S, Saito Y, Ikematsu H, Kudo SE, Sano Y, Hisabe T, Yahagi N, Saitoh Y, Igarashi M, Kobayashi K, Yamano H, Shimizu S, Tsuruta O, Inoue Y, Watanabe T, Nakamura H, Fujii T, Uedo N, Shimokawa T, Ishikawa H, Sugihara K (2014) Factors associated with technical difficulties and adverse events of colorectal endoscopic submucosal dissection: retrospective exploratory factor analysis of a multicenter prospective cohort. Int J Colorectal Dis 29:1275–1284CrossRef
26.
Zurück zum Zitat Lee SP, Kim JH, Sung IK, Lee SY, Park HS, Shim CS, Han HS (2015) Effect of submucosal fibrosis on endoscopic submucosal dissection of colorectal tumors: pathologic review of 173 cases. J Gastroenterol Hepatol 30:872–878CrossRef Lee SP, Kim JH, Sung IK, Lee SY, Park HS, Shim CS, Han HS (2015) Effect of submucosal fibrosis on endoscopic submucosal dissection of colorectal tumors: pathologic review of 173 cases. J Gastroenterol Hepatol 30:872–878CrossRef
27.
Zurück zum Zitat Sakamoto H, Hayashi Y, Miura Y, Shinozaki S, Takahashi H, Fukuda H, Okada M, Ino Y, Takezawa T, Sunada K, Lefor AK, Yamamoto H (2017) Pocket-creation method facilitates endoscopic submucosal dissection of colorectal laterally spreading tumors, non-granular type. Endosc Int Open 5:E123–E129CrossRef Sakamoto H, Hayashi Y, Miura Y, Shinozaki S, Takahashi H, Fukuda H, Okada M, Ino Y, Takezawa T, Sunada K, Lefor AK, Yamamoto H (2017) Pocket-creation method facilitates endoscopic submucosal dissection of colorectal laterally spreading tumors, non-granular type. Endosc Int Open 5:E123–E129CrossRef
28.
Zurück zum Zitat Fu K, Sano Y, Kato S, Fujii T, Iwasaki J, Sugito M, Ono M, Saito N, Yoshida S, Fujimori T (2005) Hazards of endoscopic biopsy for flat adenoma before endoscopic mucosal resection. Dig Dis Sci 50:1324–1327CrossRef Fu K, Sano Y, Kato S, Fujii T, Iwasaki J, Sugito M, Ono M, Saito N, Yoshida S, Fujimori T (2005) Hazards of endoscopic biopsy for flat adenoma before endoscopic mucosal resection. Dig Dis Sci 50:1324–1327CrossRef
29.
Zurück zum Zitat Fukunaga S, Nagami Y, Shiba M, Sakai T, Maruyama H, Ominami M, Otani K, Hosomi S, Tanaka F, Taira K, Tanigawa T, Yamagami H, Watanabe T, Fujiwara Y (2019) Impact of preoperative biopsy sampling on severe submucosal fibrosis on endoscopic submucosal dissection for colorectal laterally spreading tumors: a propensity score analysis. Gastrointest Endosc 89:470–478CrossRef Fukunaga S, Nagami Y, Shiba M, Sakai T, Maruyama H, Ominami M, Otani K, Hosomi S, Tanaka F, Taira K, Tanigawa T, Yamagami H, Watanabe T, Fujiwara Y (2019) Impact of preoperative biopsy sampling on severe submucosal fibrosis on endoscopic submucosal dissection for colorectal laterally spreading tumors: a propensity score analysis. Gastrointest Endosc 89:470–478CrossRef
30.
Zurück zum Zitat Fock KM (2014) Review article: the epidemiology and prevention of gastric cancer. Aliment Pharmacol Ther 40:250–260CrossRef Fock KM (2014) Review article: the epidemiology and prevention of gastric cancer. Aliment Pharmacol Ther 40:250–260CrossRef
31.
Zurück zum Zitat Iacopini F, Bella A, Costamagna G, Gotoda T, Saito Y, Elisei W, Grossi C, Rigato P, Scozzarro A (2012) Stepwise training in rectal and colonic endoscopic submucosal dissection with differentiated learning curves. Gastrointest Endosc 76:1188–1196CrossRef Iacopini F, Bella A, Costamagna G, Gotoda T, Saito Y, Elisei W, Grossi C, Rigato P, Scozzarro A (2012) Stepwise training in rectal and colonic endoscopic submucosal dissection with differentiated learning curves. Gastrointest Endosc 76:1188–1196CrossRef
32.
Zurück zum Zitat Pioche M, Rivory J, Nishizawa T, Uraoka T, Touzet S, O’Brien M, Saurin JC, Ponchon T, Denis A, Yahagi N (2016) Randomized comparative evaluation of endoscopic submucosal dissection self-learning software in France and Japan. Endoscopy 48:1076–1083CrossRef Pioche M, Rivory J, Nishizawa T, Uraoka T, Touzet S, O’Brien M, Saurin JC, Ponchon T, Denis A, Yahagi N (2016) Randomized comparative evaluation of endoscopic submucosal dissection self-learning software in France and Japan. Endoscopy 48:1076–1083CrossRef
Metadaten
Titel
Real-world learning curve analysis of colorectal endoscopic submucosal dissection: a large multicenter study
verfasst von
Kazuki Boda
Shiro Oka
Shinji Tanaka
Shinji Nagata
Masaki Kunihiro
Toshio Kuwai
Yuko Hiraga
Akira Furudoi
Koichi Nakadoi
Hideharu Okanobu
Tomohiro Miwata
Shiro Okamoto
Kazuaki Chayama
Publikationsdatum
03.09.2019
Verlag
Springer US
Erschienen in
Surgical Endoscopy / Ausgabe 8/2020
Print ISSN: 0930-2794
Elektronische ISSN: 1432-2218
DOI
https://doi.org/10.1007/s00464-019-07104-2

Weitere Artikel der Ausgabe 8/2020

Surgical Endoscopy 8/2020 Zur Ausgabe

Wie erfolgreich ist eine Re-Ablation nach Rezidiv?

23.04.2024 Ablationstherapie Nachrichten

Nach der Katheterablation von Vorhofflimmern kommt es bei etwa einem Drittel der Patienten zu Rezidiven, meist binnen eines Jahres. Wie sich spätere Rückfälle auf die Erfolgschancen einer erneuten Ablation auswirken, haben Schweizer Kardiologen erforscht.

Hinter dieser Appendizitis steckte ein Erreger

23.04.2024 Appendizitis Nachrichten

Schmerzen im Unterbauch, aber sonst nicht viel, was auf eine Appendizitis hindeutete: Ein junger Mann hatte Glück, dass trotzdem eine Laparoskopie mit Appendektomie durchgeführt und der Wurmfortsatz histologisch untersucht wurde.

Mehr Schaden als Nutzen durch präoperatives Aussetzen von GLP-1-Agonisten?

23.04.2024 Operationsvorbereitung Nachrichten

Derzeit wird empfohlen, eine Therapie mit GLP-1-Rezeptoragonisten präoperativ zu unterbrechen. Eine neue Studie nährt jedoch Zweifel an der Notwendigkeit der Maßnahme.

Ureterstriktur: Innovative OP-Technik bewährt sich

19.04.2024 EAU 2024 Kongressbericht

Die Ureterstriktur ist eine relativ seltene Komplikation, trotzdem bedarf sie einer differenzierten Versorgung. In komplexen Fällen wird dies durch die roboterassistierte OP-Technik gewährleistet. Erste Resultate ermutigen.

Update Chirurgie

Bestellen Sie unseren Fach-Newsletter und bleiben Sie gut informiert.

S3-Leitlinie „Diagnostik und Therapie des Karpaltunnelsyndroms“

Karpaltunnelsyndrom BDC Leitlinien Webinare
CME: 2 Punkte

Das Karpaltunnelsyndrom ist die häufigste Kompressionsneuropathie peripherer Nerven. Obwohl die Anamnese mit dem nächtlichen Einschlafen der Hand (Brachialgia parästhetica nocturna) sehr typisch ist, ist eine klinisch-neurologische Untersuchung und Elektroneurografie in manchen Fällen auch eine Neurosonografie erforderlich. Im Anfangsstadium sind konservative Maßnahmen (Handgelenksschiene, Ergotherapie) empfehlenswert. Bei nicht Ansprechen der konservativen Therapie oder Auftreten von neurologischen Ausfällen ist eine Dekompression des N. medianus am Karpaltunnel indiziert.

Prof. Dr. med. Gregor Antoniadis
Berufsverband der Deutschen Chirurgie e.V.

S2e-Leitlinie „Distale Radiusfraktur“

Radiusfraktur BDC Leitlinien Webinare
CME: 2 Punkte

Das Webinar beschäftigt sich mit Fragen und Antworten zu Diagnostik und Klassifikation sowie Möglichkeiten des Ausschlusses von Zusatzverletzungen. Die Referenten erläutern, welche Frakturen konservativ behandelt werden können und wie. Das Webinar beantwortet die Frage nach aktuellen operativen Therapiekonzepten: Welcher Zugang, welches Osteosynthesematerial? Auf was muss bei der Nachbehandlung der distalen Radiusfraktur geachtet werden?

PD Dr. med. Oliver Pieske
Dr. med. Benjamin Meyknecht
Berufsverband der Deutschen Chirurgie e.V.

S1-Leitlinie „Empfehlungen zur Therapie der akuten Appendizitis bei Erwachsenen“

Appendizitis BDC Leitlinien Webinare
CME: 2 Punkte

Inhalte des Webinars zur S1-Leitlinie „Empfehlungen zur Therapie der akuten Appendizitis bei Erwachsenen“ sind die Darstellung des Projektes und des Erstellungswegs zur S1-Leitlinie, die Erläuterung der klinischen Relevanz der Klassifikation EAES 2015, die wissenschaftliche Begründung der wichtigsten Empfehlungen und die Darstellung stadiengerechter Therapieoptionen.

Dr. med. Mihailo Andric
Berufsverband der Deutschen Chirurgie e.V.