title: Novel non-trocar technique for laparoscopic radiofrequency ablation.
abstract: We have developed a novel insertion method, a non-trocar technique (NTT), for laparoscopic radiofrequency ablation, whereby an ablation needle, guided by a 14.8-mm echo probe (PVM-787LA; Toshiba, Tokyo, Japan), accurately and easily punctures the target tumor in the liver. By existing methods, an ablation needle is inserted into the abdominal cavity through a puncture hole away from the echo probe because of the presence of a 15-mm trocar. Under such circumstances, fitting and sliding an ablation needle along the groove of the probe into the abdominal cavity is difficult because of the longitudinal dissociation between the needle and the probe. To avoid this dissociation, an echo probe is inserted directly through the small incision from which the 12-mm trocar is withdrawn and an ablation needle is introduced directly into the abdominal cavity through a puncture hole adjacent to and slid along the groove of the probe.
authors.affiliation: Department of Surgery, Yodogawa Christian Hospital, 1-7-50 Shibajima, Higashiyodogawa-ku, Osaka, Japan. fwin3348@nifty.com
authors.forename: Shinobu
authors.initials: S
authors.lastname: Tsuchida
authors.forename: Takumi
authors.initials: T
authors.lastname: Fukumoto
authors.forename: Akihiro
authors.initials: A
authors.lastname: Toyokawa
authors.forename: Masahide
authors.initials: M
authors.lastname: Awazu
authors.forename: Nobuya
authors.initials: N
authors.lastname: Kusunoki
authors.forename: Masahiro
authors.initials: M
authors.lastname: Kido
authors.forename: Masanori
authors.initials: M
authors.lastname: Takahashi
authors.forename: Motofumi
authors.initials: M
authors.lastname: Tanaka
authors.forename: Kaori
authors.initials: K
authors.lastname: Kuramitsu
authors.forename: Soo Ryang
authors.initials: SR
authors.lastname: Kim
authors.forename: Yonson
authors.initials: Y
authors.lastname: Ku
authors.forename: Masatoshi
authors.initials: M
authors.lastname: Kudo
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D006528:Carcinoma, Hepatocellular / Q000000981:diagnostic imaging / Q000601:surgery*; D017115:Catheter Ablation / Q000295:instrumentation / Q000379:methods*; D005260:Female; D006801:Humans; D010535:Laparoscopy / Q000295:instrumentation / Q000379:methods*; D008113:Liver Neoplasms / Q000000981:diagnostic imaging / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D061646:Operative Time; D014463:Ultrasonography