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A novel endoscopic purse-string suture technique, "loop 9", for gastrointestinal defect closure: a pilot study.
Haruhiro Inoue1, Mayo Tanabe1, Yuto Shimamura1
1Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan.
Endoscopy
|January 20, 2021
Summary
The novel Loop 9 technique effectively closes gastrointestinal defects after endoscopic procedures. This method achieved 100% complete closure with no adverse events, demonstrating its feasibility and efficacy.
Area of Science:
- Gastroenterology
- Endoscopic Surgery
- Medical Device Innovation
Background:
- Therapeutic endoscopy often creates gastrointestinal (GI) defects requiring closure.
- Existing closure methods may have limitations in terms of feasibility and efficacy.
Purpose of the Study:
- To evaluate the feasibility and effectiveness of the new Loop 9 method for closing GI defects.
- To assess key outcomes including closure rate, time, and safety.
Main Methods:
- The Loop 9 technique was used for defect closure in 20 patients undergoing GI procedures.
- This method involves a single instrument channel delivery, anchoring with clips, and intraluminal suture tightening.
- Complete closure rate, closure time, sustained closure, and adverse events were primary and secondary outcomes.
Main Results:
- 100% complete closure of GI defects was achieved.
- The average mucosal defect size was 17.5 mm, with a median closure time of 14 minutes.
- A sustained closure rate of 90% was observed, with no reported adverse events.
Conclusions:
- The Loop 9 technique is a feasible and effective method for closing GI defects.
- It provides complete and sustained closure for defects related to therapeutic endoscopy.
- The technique shows promise for improving endoscopic procedural outcomes.

