title: Use of water jet instruments in gastrointestinal endoscopy.
abstract: In recent years, water jet instruments have been used in the field of gastrointestinal endoscopy, mainly in two clinical situations: Investigation and treatment under endoscopic view. Injecting water jet into the gastrointestinal lumen is helpful for maintaining a clear endoscopic view, washing away blood or mucous in the lumen or on the surface of the tip of the endoscope. This contributes to reducing time and discomfort of examination. Water jet technology is an alternative method for dissecting soft tissue; this method does not harm the small vessels or cause mechanical or thermal damage. However, its use in clinical settings has been limited to the transmucosal injection of water into the submucosal layer that elevates the mucosa to prepare for endoscopic mucosal resection or endoscopic submucosal dissection, instead of tissue dissection, which may occur because of the continuous water jet. A preclinical study has been conducted using a pulsed water jet system as an alternative method for submucosal dissection by reducing intraoperative water consumption and maintenance of dissection capability. This review introduces recent studies pertaining to using a water jet in gastrointestinal endoscopy and discusses future prospects.
authors: Toru Nakano, Chiaki Sato, Tadashi Sakurai, Takashi Kamei, Noriaki Ohuchi, Division of Advanced Surgical Science and Technology, Tohoku University Graduate School of Medicine, Sendai 980-8574, Japan.
authors: Toru
authors: T
authors: Nakano
authors: Toru Nakano, Chiaki Sato, Tadashi Sakurai, Takashi Kamei, Noriaki Ohuchi, Division of Advanced Surgical Science and Technology, Tohoku University Graduate School of Medicine, Sendai 980-8574, Japan.
authors: Chiaki
authors: C
authors: Sato
authors: Toru Nakano, Chiaki Sato, Tadashi Sakurai, Takashi Kamei, Noriaki Ohuchi, Division of Advanced Surgical Science and Technology, Tohoku University Graduate School of Medicine, Sendai 980-8574, Japan.
authors: Tadashi
authors: T
authors: Sakurai
authors: Toru Nakano, Chiaki Sato, Tadashi Sakurai, Takashi Kamei, Noriaki Ohuchi, Division of Advanced Surgical Science and Technology, Tohoku University Graduate School of Medicine, Sendai 980-8574, Japan.
authors: Takashi
authors: T
authors: Kamei
authors: Toru Nakano, Chiaki Sato, Tadashi Sakurai, Takashi Kamei, Noriaki Ohuchi, Division of Advanced Surgical Science and Technology, Tohoku University Graduate School of Medicine, Sendai 980-8574, Japan.
authors: Atsuhiro
authors: A
authors: Nakagawa
authors: Toru Nakano, Chiaki Sato, Tadashi Sakurai, Takashi Kamei, Noriaki Ohuchi, Division of Advanced Surgical Science and Technology, Tohoku University Graduate School of Medicine, Sendai 980-8574, Japan.
authors: Noriaki
authors: N
authors: Ohuchi
keywords: Endoscopic mucosal resection; Endoscopic submucosal dissection; Endoscopy; Pulse; Water jet