#

Ref

In- or Exclusion

Comment

1

Peng LJ, Tian SN, Lu L, Chen H, Ouyang YY, Wu YJ. Outcome of endoscopic submucosal dissection for early gastric cancer of conventional and expanded indications : systematic review and meta-analysis. J Dig Dis 2015 ;16 :67-74.

include

Systematic review about Conventional indication versus Expanded indication

2

Facciorusso A, Antonino M, Di Maso M, Muscatiello N. Endoscopic submucosal dissection vs endoscopic mucosal resection for early gastric cancer: A meta-analysis. World J Gastrointest Endosc 2014;6:555-563.

Include

Systematic review regarding EMR versus ESD

3

Park YM, Cho E, Kang HY, Kim JM. The effectiveness and safety of endoscopic submucosal dissection compared with endoscopic mucosal resection for early gastric cancer: a systematic review and mata-analysis. Surg Endosc 2011;25:2666-2677.

Include

Systematic review regarding EMR versus ESD

4

Lian J, Chen S, Zhang Y, Qiu F. A meta-analysis of endoscopic submucosal dissection and EMR for early gastric cancer. Gastrointest Endosc 2012;76:763-770.

Include

Systematic review regarding EMR versus ESD

5

Bang CS, Baik GH, Shin IS, Kim JB, Suk KT, Yoon JH, Kim YS, Kim DJ, Shin WG, Kim KH, Kim HY, Lim H, Kang HS, Kim JH, Kim JB, Jung SW, Kae SH, Jang HJ, Choi MH. Endoscopic submucosal dissection for early gastric cancer with undifferentiated-type histology: A meta-analysis. World J Gastroenterol 2015;21:6032-6043.

Excluded

Single arm study

6

Bennett C, Wang Y, Pan T. Endoscopic mucosal resection for early gastric cancer. Cochrane Database Syst Rev. 2009 Oct 7;(4):CD004276.

Excluded

Systematic review about EMR versus gasterectomy, however, no studies included.

#

Ref

In- or exclusion

Comment

1

Ahmadi A, Draganov P. Endoscopic mucosal resection in the upper gastrointestinal tract. World Journal of Gastroenterology. 2008; 14: 1984-89. 10.3748/wjg.14.1984.

Excluded

Narrative review

2

Balmadrid B, Hwang JH. Endoscopic resection of gastric and esophageal cancer. Gastroenterol Rep (Oxf). 2015; 3: 330-38. 10.1093/gastro/gov050.

Excluded

Narrative review

3

Bang CS, Baik GH, Shin IS, Kim JB, Suk KT, Yoon JH, et al. Endoscopic submucosal dissection for early gastric cancer with undifferentiated-type histology: A meta-analysis. World journal of gastroenterology : WJG. 2015; 21: 6032-43. 10.3748/wjg.v21.i19.6032.

Excluded

Single arm study

4

Baptista V, Singh A, Wassef W. Early gastric cancer: an update on endoscopic management. Curr Opin Gastroenterol. 2012; 28: 629-35. 10.1097/MOG.0b013e328358e5b5.

Excluded

Narrative review

5

Bennett C, Wang Y, Pan T. Endoscopic mucosal resection for early gastric cancer. Cochrane Database Syst Rev. 2009; CD004276. 10.1002/14651858.CD004276.pub3.

Excluded

Systematic review about EMR versus gasterectomy, however, no studies included.

6

Bhatt A, Abe S, Kumaravel A, Vargo J, Saito Y. Indications and Techniques for Endoscopic Submucosal Dissection. The American journal of gastroenterology. 2015; 110: 784-91. 10.1038/ajg.2014.425.

Excluded

Narrative review

7

Cao Y, Liao C, Tan A, Gao Y, Mo Z, Gao F. Meta-analysis of endoscopic submucosal dissection versus endoscopic mucosal resection for tumors of the gastrointestinal tract. Endoscopy. 2009; 41: 751-57. 10.1055/s-0029-1215053.

Included

Systematic review ESD versus EMR

8

Cao Y, Liao C, Tan A, Gao Y, Mo Z, Gao F. Meta-analysis of endoscopic submucosal dissection versus endoscopic mucosal resection for tumors of the gastrointestinal tract (Structured abstract). 2009:751-57.

Excluded

Abstract of included reference.

9

Chiu PW. Novel endoscopic therapeutics for early gastric cancer. Clinical gastroenterology and hepatology : the official clinical practice journal of the American Gastroenterological Association. 2014; 12: 120-5. 10.1016/j.cgh.2013.07.037.

Excluded

Narrative review

10

Dai J, Huang X, Lu B, Jin H, Meng L. Evaluation of the Expanded Criteria of Endoscopic Submucosal Dissection for Early Gastric Cancers: A Meta-Analysis. Digestion. 2015; 92: 227-35. 10.1159/000439215.

Excluded

Expanded versus covential indication.

11

Dai JF, Huang X, Lu B, Jin HF, Meng LN. Evaluation of the expanded criteria of endoscopic submucosal dissection (ESD) for early gastric cancers (EGCs): A meta-analysis. Journal of digestive diseases. 2015; 16: 120.

Excluded

Abstract

12

Dai JF, Lv B, Huang X. Evaluation of the expanded criteria of ESD: A meta-analysis. Journal of digestive diseases. 2014; 15: 130.

Excluded

Abstract

13

Deprez PH, Bergman JJ, Meisner S, Ponchon T, Repici A, Dinis-Ribeiro M, et al. Current practice with endoscopic submucosal dissection in Europe: position statement from a panel of experts. Endoscopy. 2010; 42: 853-8. 10.1055/s-0030-1255563.

Excluded

Narrative review

14

Espinel J, Pinedo E, Ojeda V, Del Rio MG. Treatment modalities for early gastric cancer. World journal of gastrointestinal endoscopy. 2015; 7: 1062-9. 10.4253/wjge.v7.i12.1062.

Excluded

Narrative review

15

Facciorusso A, Antonino M, Di Maso M, Muscatiello N. Endoscopic submucosal dissection vs endoscopic mucosal resection for early gastric cancer: A meta-analysis. World journal of gastrointestinal endoscopy. 2014; 6: 555-63. 10.4253/wjge.v6.i11.555.

Included

Systematic review regarding EMR versus ESD

16

Facciorusso A, Antonino M, Di Maso M, Muscatiello N. Endoscopic submucosal dissection vs endoscopic mucosal resection for early gastric cancer. Digestive and Liver Disease. 2015; 47: e147.

Excluded

Abstract

17

Facciorusso A, Antonino M, Maso M, Muscatiello N. Endoscopic submucosal dissection vs endoscopic mucosal resection for early gastric cancer: a meta-analysis (Provisional abstract). 2014:555-63.

Excluded

Abstract of included reference.

18

Fernandez-Esparrach G, Calderon A, De La Pena J, Diaz Tasende JB, Esteban JM, Gimeno-Garcia AZ, et al. Endoscopic submucosal dissection. 2014; 46: 361-70. http://dx.doi.org/10.1055/s-0034-1364921.

Excluded

Narrative review

19

Fujishiro M. Perspective on the practical indications of endoscopic submucosal dissection of gastrointestinal neoplasms. World journal of gastroenterology : WJG. 2008; 14: 4289-95.

Excluded

Narrative review

20

Ho C, Tong DK, Tsang JS, Law SY. Post-esophagectomy gastric conduit cancers: treatment experiences and literature review. Dis Esophagus. 2014; 27: 141-5. http://dx.doi.org/10.1111/dote.12070.

Excluded

Case series.

21

Imaeda H, Hosoe N, Kashiwagi K, Ohmori T, Yahagi N, Kanai T, et al. Advanced endoscopic submucosal dissection with traction. World journal of gastrointestinal endoscopy. 2014; 6: 286-95. 10.4253/wjge.v6.i7.286.

Excluded

Narrative review

22

Kang KJ, Kim KM, Min BH, Lee JH, Kim JJ. Endoscopic submucosal dissection of early gastric cancer. Gut and liver. 2011; 5: 418-26. 10.5009/gnl.2011.5.4.418.

Excluded

Narrative review

23

Kantsevoy SV, Adler DG, Conway JD, Diehl DL, Farraye FA, Kwon R, et al. Endoscopic mucosal resection and endoscopic submucosal dissection. Gastrointestinal endoscopy. 2008; 68: 11-8. 10.1016/j.gie.2008.01.037.

Excluded

Narrative review

24

Kim MY, Cho JH, Cho JY. Ever-changing endoscopic treatment for early gastric cancer: yesterday-today-tomorrow. World journal of gastroenterology : WJG. 2014; 20: 13273-83. 10.3748/wjg.v20.i37.13273.

Excluded

Narrative review

25

Kim SG. Endoscopic treatment for early gastric cancer. Journal of gastric cancer. 2011; 11: 146-54. 10.5230/jgc.2011.11.3.146.

Excluded

Narrative review

26

Kim SH, Cho YK, Son BK, Ahn SB, Jo Y, Park YS. Clinicopathologic characteristics of metachronous gastric cancer after endoscopic resection: A systematic review and metaanalysis. Gastrointestinal endoscopy. 2013; 77: AB222.

Excluded

Abstract

27

Kim SH, Moon JS, Youn YH, Lee KM, Lee SJ. Management of the complications of endoscopic submucosal dissection. World Journal of Gastroenterology. 2011; 17: 3575-79. http://dx.doi.org/10.3748/wjg.v17.i31.3575.

Excluded

Narrative review

28

Lee H, Yun WK, Min BH, Lee JH, Rhee PL, Kim KM, et al. A feasibility study on the expanded indication for endoscopic submucosal dissection of early gastric cancer. Surgical endoscopy. 2011; 25: 1985-93. 10.1007/s00464-010-1499-7.

Excluded

No systematic review

29

Lee HL, Choi CH, Cheung DY. Do we have enough evidence for expanding the indications of ESD for EGC? World journal of gastroenterology : WJG. 2011; 17: 2597-601. 10.3748/wjg.v17.i21.2597.

Excluded

Narrative review

30

Lee JH, Hong SJ, Jang JY, Kim SE, Seol SY. Outcome after endoscopic submucosal dissection for early gastric cancer in Korea. World journal of gastroenterology : WJG. 2011; 17: 3591-5. 10.3748/wjg.v17.i31.3591.

Excluded

Narrative review

31

Lian J, Chen S, Zhang Y, Qiu F. A meta-analysis of endoscopic submucosal dissection and EMR for early gastric cancer. Gastrointestinal endoscopy. 2012; 76: 763-70. 10.1016/j.gie.2012.06.014.

Included

Systematic review regarding EMR versus ESD

32

Lian J, Chen S, Zhang Y, Qiu F. A meta-analysis of endoscopic submucosal dissection and EMR for early gastric cancer (Provisional abstract). 2012:763-70.

Excluded

Abstract of included reference.

33

Lin JP, Zhang YP, Xue M, Chen SJ, Si JM. Endoscopic submucosal dissection for early gastric cancer in elderly patients: a meta-analysis. World J Surg Oncol. 2015; 13: 293. 10.1186/s12957-015-0705-4.

Excluded

Systematic review of single arm studies

34

Min YW, Min BH, Lee JH, Kim JJ. Endoscopic treatment for early gastric cancer. World journal of gastroenterology : WJG. 2014; 20: 4566-73. 10.3748/wjg.v20.i16.4566.

Excluded

Narrative review

35

Murata A, Matsuda S. Circumstance of endoscopic and laparoscopic treatments for gastric cancer in Japan: A review of epidemiological studies using a national administrative database. World journal of gastrointestinal endoscopy. 2015; 7: 121-7. 10.4253/wjge.v7.i2.121.

Excluded

Narrative review

36

Nishida T, Kato M, Yoshio T, Akasaka T, Yoshioka T, Michida T, et al. Endoscopic submucosal dissection in early gastric cancer in elderly patients and comorbid conditions. World journal of gastrointestinal endoscopy. 2015; 7: 524-31. 10.4253/wjge.v7.i5.524.

Excluded

Narrative review

37

Okines A, Verheij M, Allum W, Cunningham D, Cervantes A. Gastric cancer: ESMO Clinical Practice Guidelines for diagnosis, treatment and follow-up. Ann Oncol. 2010; 21: v50-4. doi: 10.1093/annonc/mdq164.

Excluded

Narrative review

38

Othman MO, Wallace MB. Endoscopic mucosal resection (EMR) and endoscopic submucosal dissection (ESD) in 2011, a Western perspective. Clin Res Hepatol Gastroenterol. 2011; 35: 288-94. 10.1016/j.clinre.2011.02.006.

Excluded

Narrative review

39

Park CH, Kim EH, Kim HY, Roh YH, Lee YC. Clinical outcomes of endoscopic submucosal dissection for early stage esophagogastric junction cancer: a systematic review and meta-analysis. Dig Liver Dis. 2015; 47: 37-44. 10.1016/j.dld.2014.10.011.

Excluded

Systematic review of single arm studies

40

Park SW, Lee H. A meta-analysis on clinical outcomes according to indication criteria of endoscopic resection for early gastric cancer. Gastrointestinal endoscopy. 2015; 81: AB566.

Excluded

Abstract

41

Park YM, Cho E, Kang HY, Kim JM. The effectiveness and safety of endoscopic submucosal dissection compared with endoscopic mucosal resection for early gastric cancer: a systematic review and metaanalysis (Structured abstract). 2011:2666-77.

Excluded

Abstract of included reference.

42

Park YM, Cho E, Kang HY, Kim JM, Kim SY. Systematic review of endoscopic submucosal dissection versus endoscopic mucosal resection for early gastric cancer. Value in Health. 2010; 13: A254.

Excluded

Abstract

43

Park Y-M, Cho E, Kang H-Y, Kim J-M. The effectiveness and safety of endoscopic submucosal dissection compared with endoscopic mucosal resection for early gastric cancer: a systematic review and metaanalysis. Surgical Endoscopy and Other Interventional Techniques. 2011; 25: 2666-77. 10.1007/s00464-011-1627-z.

Included

Systematic review regarding EMR versus ESD

44

Peng LJ, Tian SN, Lu L, Chen H, Ouyang YY, Wu YJ. Outcome of endoscopic submucosal dissection for early gastric cancer of conventional and expanded indications: Systematic review and meta-analysis. Journal of digestive diseases. 2015; 16: 67-74. 10.1111/1751-2980.12217.

Excluded

Systematic review about Conventional indication versus Expanded indication

45

Pimentel-Nunes P, Dinis-Ribeiro M, Ponchon T, Repici A, Vieth M, De Ceglie A, et al. Endoscopic submucosal dissection: European Society of Gastrointestinal Endoscopy (ESGE) Guideline. Endoscopy. 2015; 47: 829-54. 10.1055/s-0034-1392882.

Excluded

Narrative review

46

Repici A, Pagano N, Hassan C, Cavenati S, Rando G, Spaggiari P, et al. Endoscopic Submucosal Dissection of Gastric Neoplastic Lesions in Patients with Liver Cirrhosis: a Systematic Review. Journal of Gastrointestinal and Liver Diseases. 2012; 21: 303-07.

Excluded

Systematic review of single arm studies

47

Saito I, Tsuji Y, Sakaguchi Y, Niimi K, Ono S, Kodashima S, et al. Complications related to gastric endoscopic submucosal dissection and their managements. Clinical endoscopy. 2014; 47: 398-403. 10.5946/ce.2014.47.5.398.

Excluded

Narrative review

48

Sun W, Han X, Wu S, Yang C. Endoscopic resection versus surgical resection for early gastric cancer: A systematic review and meta-analysis. Medicine (United States). 2015; 94.

Included

Systematic review regarding endoscopic resection versus surgical resection.

49

Tanaka M, Ono H, Hasuike N, Takizawa K. Endoscopic submucosal dissection of early gastric cancer. Digestion. 2008; 77: 23-8. doi: 10.1159/000111484. Epub 2008 Jan 18.

Excluded

Narrative review

50

Tanaka S, Oka S, Chayama K. Colorectal endoscopic submucosal dissection: present status and future perspective, including its differentiation from endoscopic mucosal resection. Journal of gastroenterology. 2008; 43: 641-51. 10.1007/s00535-008-2223-4.

Excluded

Narrative review

51

Teoh AY, Chiu PW. Collaboration between laparoscopic surgery and endoscopic resection: an evidence-based review. Dig Endosc. 2014; 26: 12-9. doi: 10.1111/den.12193. Epub 2013 Nov 5.

Excluded

Narrative review

52

Uedo N, Takeuchi Y, Ishihara R. Endoscopic management of early gastric cancer: endoscopic mucosal resection or endoscopic submucosal dissection: data from a Japanese high-volume center and literature review. Ann Gastroenterol. 2012; 25: 281-90.

Excluded

Narrative review

53

Wang KK, Prasad G, Tian J. Endoscopic mucosal resection and endoscopic submucosal dissection in esophageal and gastric cancers. Curr Opin Gastroenterol. 2010; 26: 453-8. 10.1097/MOG.0b013e32833e4712.

Excluded

Narrative review

#

Ref

In- or exclusion

Comment

1

Bang CS, Baik GH, Shin IS, Kim JB, Suk KT, Yoon JH, et al. Endoscopic submucosal dissection for early gastric cancer with undifferentiated-type histology: A meta-analysis. World journal of gastroenterology : WJG. 2015; 21: 6032-43. 10.3748/wjg.v21.i19.6032.

Excluded

Single arm study

2

Cho JH, Cha SW, Kim HG, Lee TH, Cho JY, Ko WJ, et al. Long-term outcomes of endoscopic submucosal dissection for early gastric cancer: a comparison study to surgery using propensity score-matched analysis. Surgical endoscopy. 2015, 10.1007/s00464-015-4672-1.

Included

Retrospective study comparing ESD with surgery

3

Choi IJ, Lee JH, Kim YI, Kim CG, Cho SJ, Lee JY, et al. Long-term outcome comparison of endoscopic resection and surgery in early gastric cancer meeting the absolute indication for endoscopic resection. Gastrointestinal endoscopy. 2015; 81: 333-41.e1. 10.1016/j.gie.2014.07.047.

Excluded

Results of the comparison ER versus surgery were not stratified between ESD and EMR.

4

Choi J, Kim SG, Im JP, Kim JS, Jung HC. Long-term clinical outcomes of endoscopic resection for early gastric cancer. Surgical endoscopy. 2015; 29: 1223-30. 10.1007/s00464-014-3800-7.

Excluded

Standard versus expanded versus beyond expanded

5

Dai J, Huang X, Lu B, Jin H, Meng L. Evaluation of the Expanded Criteria of Endoscopic Submucosal Dissection for Early Gastric Cancers: A Meta-Analysis. Digestion. 2015; 92: 227-35. 10.1159/000439215.

Excluded

Standard versus expanded criteria for ESD

6

Dai JF, Huang X, Lu B, Jin HF, Meng LN. Evaluation of the expanded criteria of endoscopic submucosal dissection (ESD) for early gastric cancers (EGCs): A meta-analysis. Journal of digestive diseases. 2015; 16: 120.

Excluded

Abstract

7

Dai JF, Lv B, Huang X. Evaluation of the expanded criteria of ESD: A meta-analysis. Journal of digestive diseases. 2014; 15: 130.

Excluded

Abstract

8

Facciorusso A, Antonino M, Di Maso M, Muscatiello N. Endoscopic submucosal dissection vs endoscopic mucosal resection for early gastric cancer: A meta-analysis. World journal of gastrointestinal endoscopy. 2014; 6: 555-63. 10.4253/wjge.v6.i11.555.

Excluded

Duplicate of previous search (already included)

9

Feng F, Sun L, Xu G, Cai L, Hong L, Yang J, et al. Is It Reasonable to Treat Early Gastric Cancer with Mucosal Infiltration and Well Differentiation by Endoscopic Submucosal Resection? Journal of gastrointestinal surgery : official journal of the Society for Surgery of the Alimentary Tract. 2015; 19: 2111-9. 10.1007/s11605-015-2932-y.

Excluded

Results (survival) of interest were not reported for the comparison surgery versus ESD

10

Fukunaga S, Nagami Y, Shiba M, Tanaka H, Muguruma K, Minamino H, et al. Long-term prognosis of expanded-indication lesions of differentiated-type early gastric cancer: A comparative analysis using propensity score matching between endoscopic submucosal dissection and surgery. Gastrointestinal endoscopy. 2015; 81: AB197.

Excluded

Abstract

11

Hong SJ, Kang MS, Kim DY, Han JP, Choi MH, Kim HK, et al. Long-term outcome after ESD for early gastric cancer: Focusing on a group beyond expanded indication. Journal of Gastroenterology and Hepatology (Australia). 2014; 29: 283.

Excluded

Abstract

12

Jung HY, Ahn JY. Endoscopic submucosal dissection for gastric neoplasm at an outpatient clinic: efficacy and safety. Clinical endoscopy. 2014; 47: 473-5. 10.5946/ce.2014.47.6.473.

Excluded

Letter to the editor without original data

13

Kang MS, Hong SJ, Kim DY, Han JP, Choi MH, Kim HK, et al. Long-term outcome after endoscopic submucosal dissection for early gastric cancer: focusing on a group beyond the expanded indication. Journal of digestive diseases. 2015; 16: 7-13. 10.1111/1751-2980.12208.

Excluded

absolute indication (AI),

expanded indication (EI) or beyond expanded indication

(BEI).

14

Kim BG, Kim BW, Kim JS, Park SM, Lim KJ, Kim JI, et al. Comparison of long-term outcome between endoscopic submucosal dissection and surgical resection for early gastric cancer. Journal of Clinical Oncology. 2015; 33.

Excluded

Abstract

15

Kim DY, Hong SJ, Cho GS, Jeong GA, Kim HK, Han JP, et al. Long-term efficacy of endoscopic submucosal dissection compared with surgery for early gastric cancer: a retrospective cohort study. Gut and liver. 2014; 8: 519-25. 10.5009/gnl13061.

Excluded

Duplicate of previous search (already included)

16

Kim ER, Kim JJ, Min BH, Min YW, Lee JH, Kim JG, et al. Long-term outcomes of endoscopic resection for early gastric cancer: Appropriate surveillance strategy based on the incidence and patterns of local, metachronous, and extragastric recurrence. Journal of Clinical Oncology. 2014; 32.

Excluded

Abstract

17

Kim HH, Kim GH, Kim JH, Choi MG, Song GA, Kim SE. The efficacy of endoscopic submucosal dissection of type I gastric carcinoid tumors compared with conventional endoscopic mucosal resection. Gastroenterology research and practice. 2014; 2014: 253860. 10.1155/2014/253860.

Included

Comparison between ESD and EMR

18

Kim SY, Jung SW, Hyun JJ, Koo JS, Park JJ, Chun HJ, et al. Predictive factors for pain after endoscopic resection of gastric tumor. Gastrointestinal endoscopy. 2015; 81: AB573.

Excluded

Abstract

19

Kim YI, Kim YW, Choi IJ, Kim CG, Lee JY, Cho SJ, et al. Long-term survival after endoscopic resection versus surgery in early gastric cancers. Endoscopy. 2015; 47: 293-301. 10.1055/s-0034-1391284.

Excluded

Duplicate of previous search (excluded because stratification between ESD and EMR does not include the outcomes of interest).

20

Kondo A, de Moura EG, Bernardo WM, Yagi OK, de Moura DT, de Moura ET, et al. Endoscopy vs surgery in the treatment of early gastric cancer: Systematic review. World journal of gastroenterology : WJG. 2015; 21: 13177-87. 10.3748/wjg.v21.i46.13177.

Included

Systematic review about endoscopy versus surgery. Stratification made between ESD and EMR.

21

Lee B, Lee H, Lee S, Seo J, Ha B, Kim T, et al. Is endoscopic submucosal dissection safe for papillary adenocarcinoma of stomach? Helicobacter. 2014; 19: 167.

Excluded

Abstract

22

Lee HJ, Kim GH, Lee BE, Baek DH, Song GA. Is endoscopic submucosal dissection safe for papillary adenocarcinoma of stomach? Gastroenterology. 2014; 146: S-316.

Excluded

Abstract

23

Lee HJ, Kim GH, Park do Y, Lee BE, Jeon HK, Jhi JH, et al. Is endoscopic submucosal dissection safe for papillary adenocarcinoma of the stomach? World journal of gastroenterology : WJG. 2015; 21: 3944-52. 10.3748/wjg.v21.i13.3944.

Excluded

Outcomes of interest not included in the comparison of surgery versus ESD.

24

Libânio D, Afonso LP, Henrique R, Dinis-Ribeiro M, Pimentel-Nunes P. Management and long-term outcomes after gastric endoscopic submucosal dissection in an European center. Gastrointestinal endoscopy. 2015; 81: AB125.

Excluded

Abstract

25

Mei XC, Sun B, Xu JM, Kong DR. Clinical effects of endoscopic submucosal dissection vs endoscopic mucosal resection for early gastric and esophageal cancer and precancerous lesions. World Chinese Journal of Digestology. 2014; 22: 4954-59.

Excluded

Chinese

26

Meng FS, Zhang ZH, Wang YM, Lu L, Zhu JZ, Ji F. Comparison of endoscopic resection and gastrectomy for the treatment of early gastric cancer: a meta-analysis. Surgical Endoscopy and Other Interventional Techniques. 2015; 1-11.

Included

ER versus surgery including the stratification between ESD and EMR

27

Najmeh S, Cools-Lartigue J, Ferri LE. Comparing laparoscopic to endoscopic resections of gastric tumors in a high volume north american center. Gastroenterology. 2014; 146: S-1096.

Excluded

Abstract

28

Ohnita K, Isomoto H, Shikuwa S, Yajima H, Minami H, Matsushima K, et al. Early and long-term outcomes of endoscopic submucosal dissection for early gastric cancer in a large patient series. Experimental and therapeutic medicine. 2014; 7: 594-98. 10.3892/etm.2014.1488.

Excluded

Indication, expanded indication, and beyond indication

29

Oka S, Tanaka S, Higashiyama M, Numata N, Sanomura Y, Yoshida S, et al. Clinical validity of the expanded criteria for endoscopic resection of undifferentiated-type early gastric cancer based on long-term outcomes. Surgical Endoscopy and Other Interventional Techniques. 2014; 28: 639-47. 10.1007/s00464-013-3222-y.

Included

Comparison between EMR and ESD

30

Ono H, Yao K, Fujishiro M, Oda I, Nimura S, Yahagi N, et al. Guidelines for endoscopic submucosal dissection and endoscopic mucosal resection for early gastric cancer. Digestive endoscopy : official journal of the Japan Gastroenterological Endoscopy Society. 2015, 10.1111/den.12518.

Excluded

Guideline with solely descriptive data analysis

31

Park CH, Lee H, Kim DW, Chung H, Park JC, Shin SK, et al. Clinical safety of endoscopic submucosal dissection compared with surgery in elderly patients with early gastric cancer: A propensity-matched analysis. Gastrointestinal endoscopy. 2015; 80: 599-609.

Excluded

Duplicate of included reference in systematic reviews

32

Park SJ, Ahn JY, Jung HY, Na S, Park SE, Kim MY, et al. Endoscopic resection for synchronous esophageal squamous cell carcinoma and gastric adenocarcinoma in early stage is a possible alternative to surgery. Gut and liver. 2015; 9: 59-65. http://dx.doi.org/10.5009/gnl13255.

Excluded

Esophageal and gastric cancer not separated for outcomes of interest

33

Park SW, Lee H. A meta-analysis on clinical outcomes according to indication criteria of endoscopic resection for early gastric cancer. Gastrointestinal endoscopy. 2015; 81: AB566.

Excluded

Abstract

34

Peng LJ, Tian SN, Lu L, Chen H, Ouyang YY, Wu YJ. Outcome of endoscopic submucosal dissection for early gastric cancer of conventional and expanded indications: systematic review and meta-analysis. Journal of digestive diseases. 2015; 16: 67-74. 10.1111/1751-2980.12217.

Excluded

Duplicate of previous search (already included)

35

Pimentel-Nunes P, Dinis-Ribeiro M, Ponchon T, Repici A, Vieth M, De Ceglie A, et al. Endoscopic submucosal dissection: European Society of Gastrointestinal Endoscopy (ESGE) Guideline. Endoscopy. 2015; 47: 829-54. 10.1055/s-0034-1392882.

Excluded

Guideline with solely descriptive data analysis

36

Pimentel-Nunes P, Mourao F, Veloso N, Afonso LP, Jacome M, Moreira-Dias L, et al. Long-term follow-up after endoscopic resection of gastric superficial neoplastic lesions in Portugal. Endoscopy. 2014; 46: 933-40. 10.1055/s-0034-1377348.

Included

Retrospective cohort comparing ESD with EMR

37

Ryu CB, Lee MS. Clinical outcome of absolute versus expanded indication of endoscopic submucosal dissection for early gastric cancer. Gastrointestinal endoscopy. 2015; 81: AB467.

Excluded

Abstract

38

Shin KY, Jeon SW, Cho KB, Park KS, Kim ES, Park CK, et al. Clinical outcomes of the endoscopic submucosal dissection of early gastric cancer are comparable between absolute and new expanded criteria. Gut and liver. 2015; 9: 181-7. 10.5009/gnl13417.     

Excluded

Absolute criteria versus expanded criteria

39

Sim EH, Kim BW, Kim JH, Kim JJ. Long-term outcome of endoscopic submucosal dissection for early gastric cancer compared to surgical resection. Journal of Clinical Oncology. 2014; 32.

Excluded

Abstract

40

Soh JS, Kim JK, Lim H, Kang HS, Park JW, Kim SE, et al. Comparison of endoscopic submucosal dissection and surgical resection for treating gastric subepithelial tumours. Scandinavian journal of gastroenterology. 2015; 1-6. 10.3109/00365521.2015.1124451.

Included

Retrospective study comparing ESD and surgery

41

Song WC, Qiao XL, Gao XZ. A comparison of endoscopic submucosal dissection (ESD) and radical surgery for early gastric cancer: a retrospective study. World J Surg Oncol. 2015; 13: 309. 10.1186/s12957-015-0724-1.

Included

Retrospective study comparing ESD and radical surgery

42

Sun W, Han X, Wu S, Yang C. Endoscopic resection versus surgical resection for early gastric cancer: A systematic review and meta-analysis. Medicine (United States). 2015; 94.

Excluded

Duplicate of previous search (already included)

43

Tanabe S, Ishido K, Higuchi K, Sasaki T, Katada C, Azuma M, et al. Long-term outcomes of endoscopic submucosal dissection for early gastric cancer: a retrospective comparison with conventional endoscopic resection in a single center. Gastric cancer : official journal of the International Gastric Cancer Association and the Japanese Gastric Cancer Association. 2014; 17: 130-6. 10.1007/s10120-013-0241-2.

Excluded

Comparison between Endoscopic aspiration

Mucosectomy (EAM) and Endoscopic submucosal dissection (ESD)

44

Tomida H, Yamamoto Y, Muramatsu Y, Shimizu T, Miyamoto Y, Horiuchi Y, et al. The long-term prognosis according to therapeutics for undifferentiated type early gastric cancer. Gastrointestinal endoscopy. 2015; 81: AB227.

Excluded

Abstract

45

Yamashina T, Uedo N, Dainaka K, Aoi K, Matsuura N, Ito T, et al. Long-term survival after endoscopic resection for early gastric cancer in the remnant stomach: Comparison with radical surgery. Annals of Gastroenterology. 2015; 28: 66-71.

Excluded

Results of the comparison ER versus surgery were not stratified between ESD and EMR.

46

Zhang HY, Liu HB. Clinical effects of endoscopic submucosal dissection vs surgical treatment for early gastric cancer. World Chinese Journal of Digestology. 2014; 22: 5330-33.

Excluded

Abstract