title: [Thoracoscopic radio-frequency ablation therapy for liver surface tumor located under the diaphragm].
abstract: It is necessary to select a proper method for radio-frequency ablation (RFA) therapy of the liver tumor. Especially, treating the tumor under the diaphragm is usually difficult to approach by percutaneous puncture. We have done thoracoscopic RFA in 48 cases (43 HCC, 1 adenomatous hyperplasia, and 4 metastatic liver tumors) to treat the tumor located on the surface of the liver under the diaphragma since January 1st, 2000. The average operation time was 237 minutes, the average blood loss was 29.0 ml and the average tumor diameter were 2.6 cm, and the average frequency of coagulation was 4.5 times. The cases which thoracoscopic RFA was possible with diaphragm incision were 27 cases (56%). However, there were 15 cases in which diaphragm incision was difficult by the adhesion under the diaphragm. Moreover, there were six cases with severe adhesion that was impossible by the thoracoscopic operation to convert an open chest method. There were 25 cases, which had some adhesion either in the chest or under the diaphragm, and those adhesions were considered to be related to the previous treatments such as the operation, ablation, and chemotherapy. The average length of the hospital stay post operation was 9.7 days. Only 3 cases (6%) needed additional treatments for tumor where the severe postoperative complication did not occur. Therefore, thoracoscopic RFA for tumor on the liver surface located under the diaphragm is suggested to be a feasible technique. On the other hand, it is necessary to pay attention to two kinds of adhesion taking a critical role for thoracoscopic operation procedures.
authors.affiliation: Dept. of Gastroenterological Surgery, Graduate School of Medicine, Kumamoto University.
authors.forename: Takatoshi
authors.initials: T
authors.lastname: Ishiko
authors.forename: Toru
authors.initials: T
authors.lastname: Beppu
authors.forename: Takao
authors.initials: T
authors.lastname: Mizumoto
authors.forename: Seiji
authors.initials: S
authors.lastname: Hosaka
authors.forename: Osamu
authors.initials: O
authors.lastname: Nakahara
authors.forename: Hirohisa
authors.initials: H
authors.lastname: Okabe
authors.forename: Kazutaka
authors.initials: K
authors.lastname: Kuramoto
authors.forename: Junji
authors.initials: J
authors.lastname: Kurashige
authors.forename: Toshiro
authors.initials: T
authors.lastname: Masuda
authors.forename: Hiromitsu
authors.initials: H
authors.lastname: Hayashi
authors.forename: Shinichi
authors.initials: S
authors.lastname: Sugiyama
authors.forename: Masahiko
authors.initials: M
authors.lastname: Hirota
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Takamori
authors.forename: Keiichiro
authors.initials: K
authors.lastname: Kanemitsu
authors.forename: Hideo
authors.initials: H
authors.lastname: Baba
mesh_terms: D017115:Catheter Ablation / Q000379:methods*; D003964:Diaphragm; D005260:Female; D006801:Humans; D007902:Length of Stay; D008113:Liver Neoplasms / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D013906:Thoracoscopy; D000267:Tissue Adhesions / Q000473:pathology