| Theme |
<Comprehensible explanation> "JGES guidelines for colorectal endoscopic submucosal dissection/endoscopic mucosal resection" |
| Title |
Technique of ESD/EMR |
| Author |
Yutaka Saito |
Endoscopy Division, National Cancer Center Hospital |
| Author |
Masanori Sekiguchi |
Endoscopy Division, National Cancer Center Hospital |
| Author |
Yusaku Tanaka |
Endoscopy Division, National Cancer Center Hospital |
| Author |
Hirohito Tanaka |
Endoscopy Division, National Cancer Center Hospital |
| Author |
Kenichi Konda |
Endoscopy Division, National Cancer Center Hospital |
| Author |
Masau Sekiguchi |
Endoscopy Division, National Cancer Center Hospital |
| Author |
Masayoshi Yamada |
Endoscopy Division, National Cancer Center Hospital |
| Author |
Taku Sakamoto |
Endoscopy Division, National Cancer Center Hospital |
| Author |
Seiichiro Abe |
Endoscopy Division, National Cancer Center Hospital |
| Author |
Takeshi Nakajima |
Endoscopy Division, National Cancer Center Hospital |
| Author |
Takahisa Matsuda |
Endoscopy Division, National Cancer Center Hospital |
| [ Summary ] |
In endoscopic mucosal resection (EMR), the lesion is captured with a snare and resected by applying high-frequency current after submucosal injection of physiological saline. In piecemeal EMR, a large nodule is first cut into a large piece to accurately perform histological diagnosis (planned piecemeal EMR). In endoscopic submucosal dissection (ESD), the circumference of the lesion is incised using a needle-type knife, and the submucosal layer is then dissected after submucosal injection of sodium hyaluronate solution.
A technique in which snaring is performed without dissecting the submucosal layer after incising the circumference of the lesion is defined as "precutting EMR" and a technique in which the submucosal layer is dissected and snaring is performed after the ESD procedure is defined as "hybrid ESD" in these guidelines. |