SMShinichi Mukai

Shinichi Mukai

*This is an algorithmically generated author record based on publicly available information.

Current Organizations / Institutes

The organizations/institutes from the scholar's latest article


Shinichi Mukai has a total of 13 co-authors. Here are the top co-authors by number of shared publications:


Latest Publications

  • Postprocedural combined treatment using the coagulation plus artery-selective clipping (2C) method for the prevention of delayed bleeding after ESD

    by Shinichi Mukai, Songde Cho, Shinya Nakamura, Yu Hatano, Takahiro Kotachi, Akinori Shimizu, Genta Matsuura, Takahiro Azakami, Atsuhisa Takaba, Toshihide Hamada, et al.

    The incidence of delayed bleeding after endoscopic submucosal dissection (ESD) for gastric neoplasms is reported to be approximately 5 %. We examined whether postprocedural combined treatment using the coagulation plus artery-selective clipping (2C) method is a useful measure for preventing delayed bleeding after ESD. A total of 234 gastric epithelial neoplasms were treated from June 2007 to May 2012. Post-ESD coagulation (PEC) and clipping for part of the vessels was performed for 154 lesions from June 2007 to June 2010. A total of 80 lesions were treated using the 2C method from July 2010 to May 2012. During ESD, the locations of the arteries were recorded on a schematic diagram of the lesion. Arteries were defined as regions of arterial bleeding that required coagulation or apparent arteries in which preventive coagulation was performed. When ESD was completed, soft coagulation was performed for arteries in the resection area using hemostatic forceps, followed by arterial clipping for additional strength. Coagulation also was performed continuously for visible vessels in the resection area. This was a retrospective study. The incidence rates of delayed bleeding after ESD, as evidenced by hematemesis or melena, or the presence of anemia (decline in Hb >2 g/dl) that required emergency endoscopy were recorded. Delayed bleeding occurred in 7 (4.5 %) of the 154 cases treated using PEC and in 1 (1.3 %) of the 80 cases treated using the 2C method. The mean time required for the 2C method was 15.0 ± 7.0 min (range, 5–44 min). The mean number of clippings per lesion was 3.8 ± 2.8 (range, 0–13). Almost all clips fell off within 2 months of the procedure. Coagulation plus artery-selective clipping (the 2C method) of post-ESD ulcers might effectively reduce the incidence of delayed bleeding after ESD for gastric neoplasms.


  • Open Access

    Analysis of Delayed Bleeding after Endoscopic Submucosal Dissection for Gastric Epithelial Neoplasms

    by Shinichi Mukai, Songde Cho, Takahiro Kotachi, Akinori Shimizu, Genta Matuura, Michihiro Nonaka, Toshihide Hamada, Ken Hirata, Toshio Nakanishi

    Aim. Delayed bleeding after endoscopic submucosal dissection (ESD) for gastric epithelial neoplasms is a major complication. We investigated factors related to post-ESD bleeding to identify preventive measures.Methods. The study included 161 gastric epithelial neoplasms in 142 patients from June 2007 to September 2010. Post-ESD bleeding was defined as an ulcer with active bleeding or apparent exposed vessels diagnosed by an emergency endoscopy or a planned follow-up endoscopy. We analyzed associations between bleeding and the following factors: age, sex, morphology, pathology, tumor depth, ulcer presence/absence, location, size of the resected lesion, duration of the procedure, the number of times bleeding occurred during ESD, and the use of anticoagulants and/or antiplatelet drugs. Subsequently, we examined characteristics of bleeding cases.Results. Post-ESD bleeding occurred in 21 lesions. Univariate analysis of these cases showed that ulcer presence/absence (P<0.001), middle or lower third lesions (P=0.036), circumference (P=0.014), and a post-ESD ulcer with an extended lesser curve (P=0.009) were significant predictors of bleeding. Multivariate analysis showed that ulcer presence/absence (OR 9.73, 95% CI 2.28–41.53) was the only significant predictor.Conclusion. Ulcer presence/absence was considered the most significant predictor of post-ESD bleeding.