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A novel double-channel therapeutic endoscope ("R-scope") facilitates endoscopic submucosal dissection of superficial gastric neoplasms.
Endoscopy. 2006 Oct; 38(10):1011-5.E

Abstract

BACKGROUND AND STUDY AIM

Endoscopic submucosal dissection (ESD) is a new and radical treatment for superficial gastrointestinal neoplasms that provides high rates of en bloc resection compared with treatment by conventional mucosal resection. However, ESD is a complex procedure that is associated with long operating times and a higher complication rate. This feasibility study assessed the use of a novel double-channel therapeutic endoscope for performing en-bloc ESD in order to assess whether the procedure time could be shortened.

PATIENTS AND METHODS

The therapeutic endoscope we used (the "R-scope") is equipped with a multibending system and has two movable instrument channels: one moves a grasping forceps vertically for lesion countertraction; the other swings a cutting knife horizontally for dissection. Twenty consecutive patients (18 men, 2 women; mean age 63 years, range 54 - 80 years) with superficial gastric neoplasms in the distal two-thirds of the stomach underwent resection of their tumor by ESD using the R-scope. Forty size- and location-matched gastric neoplasms resected by conventional ESD were reviewed retrospectively for the purposes of comparison.

RESULTS

The rates of curative en-bloc resection, complications, and local recurrence using the two ESD methods were comparable. The mean +/- SD operating time was significantly shorter for ESD using the R-scope than for conventional ESD (57.9 +/- 29.7 minutes vs. 92.8 +/- 58.9 minutes, P = 0.016).

CONCLUSION

The R-scope appears to shorten the operating time of ESD with comparable efficacy and complication rates.

Authors+Show Affiliations

Department of Endoscopy, The Jikei University School of Medicine, Tokyo, Japan.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

17058166

Citation

Yonezawa, J, et al. "A Novel Double-channel Therapeutic Endoscope ("R-scope") Facilitates Endoscopic Submucosal Dissection of Superficial Gastric Neoplasms." Endoscopy, vol. 38, no. 10, 2006, pp. 1011-5.
Yonezawa J, Kaise M, Sumiyama K, et al. A novel double-channel therapeutic endoscope ("R-scope") facilitates endoscopic submucosal dissection of superficial gastric neoplasms. Endoscopy. 2006;38(10):1011-5.
Yonezawa, J., Kaise, M., Sumiyama, K., Goda, K., Arakawa, H., & Tajiri, H. (2006). A novel double-channel therapeutic endoscope ("R-scope") facilitates endoscopic submucosal dissection of superficial gastric neoplasms. Endoscopy, 38(10), 1011-5.
Yonezawa J, et al. A Novel Double-channel Therapeutic Endoscope ("R-scope") Facilitates Endoscopic Submucosal Dissection of Superficial Gastric Neoplasms. Endoscopy. 2006;38(10):1011-5. PubMed PMID: 17058166.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - A novel double-channel therapeutic endoscope ("R-scope") facilitates endoscopic submucosal dissection of superficial gastric neoplasms. AU - Yonezawa,J, AU - Kaise,M, AU - Sumiyama,K, AU - Goda,K, AU - Arakawa,H, AU - Tajiri,H, PY - 2006/10/24/pubmed PY - 2007/1/12/medline PY - 2006/10/24/entrez SP - 1011 EP - 5 JF - Endoscopy JO - Endoscopy VL - 38 IS - 10 N2 - BACKGROUND AND STUDY AIM: Endoscopic submucosal dissection (ESD) is a new and radical treatment for superficial gastrointestinal neoplasms that provides high rates of en bloc resection compared with treatment by conventional mucosal resection. However, ESD is a complex procedure that is associated with long operating times and a higher complication rate. This feasibility study assessed the use of a novel double-channel therapeutic endoscope for performing en-bloc ESD in order to assess whether the procedure time could be shortened. PATIENTS AND METHODS: The therapeutic endoscope we used (the "R-scope") is equipped with a multibending system and has two movable instrument channels: one moves a grasping forceps vertically for lesion countertraction; the other swings a cutting knife horizontally for dissection. Twenty consecutive patients (18 men, 2 women; mean age 63 years, range 54 - 80 years) with superficial gastric neoplasms in the distal two-thirds of the stomach underwent resection of their tumor by ESD using the R-scope. Forty size- and location-matched gastric neoplasms resected by conventional ESD were reviewed retrospectively for the purposes of comparison. RESULTS: The rates of curative en-bloc resection, complications, and local recurrence using the two ESD methods were comparable. The mean +/- SD operating time was significantly shorter for ESD using the R-scope than for conventional ESD (57.9 +/- 29.7 minutes vs. 92.8 +/- 58.9 minutes, P = 0.016). CONCLUSION: The R-scope appears to shorten the operating time of ESD with comparable efficacy and complication rates. SN - 0013-726X UR - https://www.unboundmedicine.com/medline/citation/17058166/A_novel_double_channel_therapeutic_endoscope__"R_scope"__facilitates_endoscopic_submucosal_dissection_of_superficial_gastric_neoplasms_ L2 - http://www.thieme-connect.com/DOI/DOI?10.1055/s-2006-944779 DB - PRIME DP - Unbound Medicine ER -