Seiichi Nakaya

Verification of Fascial Fissure Direction at the Port-site: the Search for a Reliable Closure Method

Masahiro Kimura, Koshiro Harata, Ken Tsuboi, Yuzo Maeda, Seiichi Nakaya, Yoichi Matsuo, Akira Mitsui & Shuji Takiguchi · Journal of Advances in Medicine and Medical Research · 2022

Background: One of the complications of endoscopic surgery is port-site hernia. The risk of port-site hernia is minimized by proper port-site closure, which relies on appropriate characterization of the fascia, particularly the direction of fascial fissures. Methods: The followin...

Open access Research Article 10.9734/jammr/2022/v34i1931442

A New Approach to the Laparoscopic Double Stapling Technique: Exploration and Reinforcement of Weak Points

Masahiro Kimura, Yoshiyuki Kuwabara, Akira Mitsui, Takaya Nagasaki & Seiichi Nakaya · Journal of Advances in Medicine and Medical Research · 2021

Background: Anastomotic leakage is a serious complication in colorectal surgery, often associated with higher morbidity and mortality. Even with advances in medical technology and devices, the rates of anastomotic leakage is not on downward trend. We describe our experimental and...

Open access Research Article 10.9734/jammr/2021/v33i530840

Effect of a Slow-firing Method on Porcine Small Intestine: Evaluation of Staple Malformation by Two Different Methods

Masahiro Kimura, Kotaro Mizuno, Koshiro Harata, Ken Tsuboi, Yuzo Maeda, Seiichi Nakaya, Hiroshi Uematsu, Syuhei Uehara, Tomohiro Kako & Takeshi Saito · Journal of Advances in Medicine and Medical Research · 2022

Background: In addition to improvement in staplers, surgeons have made some ingenious changes in stapling techniques. There are few reports that have examined in detail the effect of one ingenious change, the slow-firing method, on the malformation of staples. In this study, the...

Open access Research Article 10.9734/jammr/2022/v34i2031473