title: Hepatic parenchymal resection using an ultrasonic surgical aspirator with electrosurgical coagulation.
abstract: OBJECTIVE
  We introduced an ultrasonic surgical aspirator with electrosurgical coagulation to increase safety of the liver resections performed for hepatocellular carcinoma.
  
  
  METHODS
  This system was evaluated by analyzing the intraoperative blood loss, the duration of hepatectomy, the ischemia time, and the postoperative clinical course and comparing these same parameters with the traditional forceps' fracture method.
  
  
  RESULTS
  There was no significant difference in the duration of surgery and the mean liver resection time between the two methods. The mean blood loss by using this system was 2458 +/- 4742 mL and by forceps' fracture method 956 +/- 252 mL. The mean ischemia time was 44.4 +/- 35.9 min by using this system and 23.9 +/- 29.1 min in forceps' fracture method. There was a significant decrease in intraoperative blood loss and ischemia time using the new system. This may decrease postoperative complications.
  
  
  CONCLUSIONS
  This system may enable all surgeons to perform liver resection easily and safely.
authors.affiliation: First Department of Surgery, Nippon Medical School, 1-1-5 Sendagi, Bunkyou-ku, Tokyo 113-8603, Japan. Taniain@nms.ac.jp
authors.forename: Nobuhiko
authors.initials: N
authors.lastname: Taniai
authors.forename: Masahiko
authors.initials: M
authors.lastname: Onda
authors.forename: Takashi
authors.initials: T
authors.lastname: Tajiri
authors.forename: Koho
authors.initials: K
authors.lastname: Akimaru
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Yoshida
authors.forename: Yasuhiro
authors.initials: Y
authors.lastname: Mamada
mesh_terms: D016063:Blood Loss, Surgical; D006528:Carcinoma, Hepatocellular / Q000601:surgery*; D016009:Chi-Square Distribution; D004564:Electrocoagulation / Q000295:instrumentation*; D004867:Equipment Design; D006498:Hepatectomy / Q000379:methods*; D006801:Humans; D007511:Ischemia / Q000517:prevention & control; D008113:Liver Neoplasms / Q000601:surgery*; D012189:Retrospective Studies; D018709:Statistics, Nonparametric; D013396:Suction / Q000295:instrumentation; D016896:Treatment Outcome