Factors Influencing Resection Time in Endoscopic Submucosal Dissection for Rectal Neuroendocrine Tumors.

Area of Science:

• Gastroenterology
• Surgical Oncology
• Endoscopic Procedures

Background:

• Endoscopic submucosal dissection (ESD) is effective for rectal neuroendocrine tumors (NETs).
• Factors influencing ESD resection time for rectal NETs are not well understood.
• Optimizing ESD procedure time is crucial for patient outcomes and resource management.

Purpose of the Study:

• To identify factors affecting resection time during endoscopic submucosal dissection (ESD) for rectal neuroendocrine tumors (NETs).
• To analyze the impact of operator experience, tumor characteristics, and device use on procedure duration.

Main Methods:

• Retrospective analysis of 194 rectal NET lesions treated with ESD.
• Inclusion of variables such as operator experience, traction device (TD) use, tumor location, and specimen area.
• Multiple regression analysis to determine factors influencing resection time.

Main Results:

• Median resection time was 30 minutes.
• Non-expert endoscopists, upper rectal tumor location (Rs), and larger specimen areas were associated with significantly longer resection times.
• Traction device (TD) use was significantly associated with shorter resection times.

Conclusions:

• Traction device use during ESD for rectal NETs can reduce procedure time.
• Operator inexperience, upper rectal location, and larger tumor size increase ESD resection time.
• Understanding these factors can help optimize ESD for rectal NETs.