Abstract
Aims : To assess the usefulness of Thread-Traction-method (TT method) in esophageal endoscopic submucosal dissection (ESD).
Methods : A total of 40 consecutive lesions treated by esophageal ESD were included in the study. The TT method was used (TT group) in 20 lesions and 20 lesions were treated by conventional ESD (C group) after randomization. A clip with a thread was attached to the oral edge of the lesion after entire mucosal incision in the TT group. The hook knife method was used in all cases.
Results : ESD was performed in all cases. Effective counter traction was created by the TT method, and efficient dissection operation was possible. In the TT group, significant shortening of the dissection time was achieved as compared with the C group (19.8 min vs 31.8 min, p=0.044). Mean number of local injections during dissection was significantly less in group TT compared with that in group C (0.6 times vs 2.2times, p<0.001). As for the amount of local injection, group TT reguired significantly less compared with group C (2.6ml vs 7.5ml, p<0.01). No complication, were encountered study.
Conclusions : The TT method in esophageal ESD contributes to shortening of the dissection time with safety. It is expected for the TT method to become widespread as a safe and useful procedure.
