Category
Endoscopy Therapeutic
Typical Use
Perform precut sphincterotomy or mucosal incision during advanced endoscopic procedures.
Description
A fine electrosurgical cutting instrument passed through an endoscope to make controlled mucosal or sphincter incisions during complex ERCP or endoscopic submucosal dissection procedures, enabling access to difficult ducts or facilitating en bloc resection of lesions. Needle knife use requires advanced endoscopic skill, precise electrosurgical settings, and readiness to manage bleeding or perforation, and is typically reserved for experienced therapeutic endoscopists. Meticulous technique, prophylactic measures, and postprocedure monitoring reduce complication rates and improve therapeutic outcomes in selected patients. Training, simulation, and multidisciplinary support are important components of safe advanced endoscopic practice.