Akio Matsumoto

Publications (2)3.65 Total impact

• Article: Laparoscopy-assisted esophagoenteral anastomosis using endoscopic purse-string suture instrument "Endo-PSI (II)" and circular stapler.

  Shinsuke Usui, Kentaro Nagai, Susumu Hiranuma, Noriaki Takiguchi, Akio Matsumoto, Katsuhiro Sanada
  [show abstract] [hide abstract]
  ABSTRACT: It is said that laparoscopic esophagoenteral anastomosis is not easy. In particular, purse-string suture of the abdominal esophagus is difficult when using a circular stapler. We have developed an endoscopic purse-string suture instrument, the "Endo-PSI (II)", and the instrument was employed clinically during laparoscopy-assisted total gastrectomy. The device was inserted into the abdominal cavity through a 4-cm minilaparotomy of the epigastrium, and pneumoperitoneum was established by closing a Lap Disc. The Endo-PSI (II) was attached to the abdominal esophagus and a straight needle with a 2-0 polypropylene suture was passed through the device laparoscopically. After a purse-string suture of the abdominal esophagus was made, the abdominal esophagus was transected laparoscopically and the removed stomach was pulled out through the minilaparotomy. The anvil head of a circular stapler was inserted into the abdominal cavity through the minilaparotomy, and insertion of the anvil into the esophagus and ligation of the purse-string suture were performed laparoscopically, too. The combination of using a circular stapler for esophagojejunostomy and closure of the jejunal stump was also performed laparoscopically. Between May 2007 and May 2008, these products were used in 23 patients during laparoscopy-assisted total gastrectomy. There were no cases that required conversion to a conventional open procedure. The newly developed Endo-PSI (II) was useful for laparoscopic purse-string suture of the esophagus.
  Gastric Cancer 02/2008; 11(4):233-7. · 2.42 Impact Factor
• Article: Hand-assisted laparoscopic esophagojejunostomy using newly developed purse-string suture instrument "Endo-PSI".

  Shinsuke Usui, Koji Ito, Susumu Hiranuma, Noriaki Takiguchi, Akio Matsumoto, Takehisa Iwai
  [show abstract] [hide abstract]
  ABSTRACT: Although there are several reports on the esophagojejunostomy during laparoscopy-assisted total gastrectomy, the procedures still remain to be established. We report hand-assisted laparoscopic esophagojejunostomy using circular stapler and newly developed instrument "Endo-PSI." Between April 2005 and April 2006, 13 patients received these products during laparoscopy-assisted total gastrectomy. The Endo-PSI was attached to the abdominal esophagus using hand-assisted laparoscopic surgery. The insertion of the straight needle with 2-0 polypropylene into the device and the cutting of the esophagus were also performed using hand-assisted laparoscopic surgery. The insertion of the anvil head into the esophagus and the ligation of the purse-string suture were performed laparoscopically. After the jejuno-jejunal anastomosis was performed extracorporeally, the combination of the circular stapler for esophagojejunostomy and the closure of the stump of the jejunum were performed laparoscopically. There were no complications attributable to this procedure and there were no cases that required conversion to conventional open procedure or required extension of median incision. This newly developed Endo-PSI was useful for laparoscopic purse-string suture.
  Surgical laparoscopy, endoscopy & percutaneous techniques 05/2007; 17(2):107-10. · 1.23 Impact Factor