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Endoscopic submucosal dissection of large colorectal tumors by using a novel spring-action S-O clip for traction (with video)

2009; Elsevier BV; Volume: 69; Issue: 7 Linguagem: Inglês

10.1016/j.gie.2008.12.245

1097-6779

Naoto Sakamoto, Taro Osada, Tomoyoshi Shibuya, Kazuko Beppu, Kenshi Matsumoto, Hiroki Mori, Masato Kawabe, Akihito Nagahara, Michiro Otaka, Tatsuo Ogihara, Sumio Watanabe,

Gastrointestinal Tumor Research and Treatment

Endoscopic submucosal dissection (ESD) allows en bloc resection of large GI neoplasms, regardless of their size; however, technical difficulties associated with ESD in the colorectum make it less widely applied in the treatment of tumors in this region. To address this difficulty, we designed a rubber strip-based traction device, called the S-O clip (Sakamoto-Osada clip) and reported previously that ESD with this device was effective for complete resection of large, superficial colorectal neoplasms. In this report, we describe a novel spring-action version of the S-O clip (spring S-O clip) that improves the facility of clip use during ESD of colorectal tumors.To evaluate the efficacy and safety of the spring S-O clip for ESD of colorectal neoplasms.Case series.Juntendo University Hospital.The efficacy and safety of the spring S-O clip traction device during ESD of colorectal tumors.In 3 cases, a large, superficial neoplasm in the right side of the colon was removed safely and successfully en bloc without complication. Procedure times for the 3 cases were 44, 27, and 49 minutes, with resected specimens measuring 40, 24, and 35 mm, respectively.Uncontrolled study.This limited case series demonstrates that spring S-O clip-assisted ESD is safe and effective for en bloc resection of large superficial neoplasms in the right side of the colon.