title: [Partial nephrectomy using microwave tissue coagulator--application for laparoscopic operation].
abstract: We report our clinical findings on 12 tumors (11 patients) successfully resected by partial nephrectomy with a microwave tissue coagulator (MTC) without renal pedicle clamping, including laparoscopic operation in 4 patients. All patients presented with a renal tumor detected incidentally by ultrasonography or computed tomography. The mean size of renal tumor was 1.9 (range 0.8-3.4) cm. Pathological diagnosis was renal cell carcinoma in 9 tumors and hemorrhagic cyst in 3 tumors. Mean operative time was 249 minutes. Mean blood loss was 183 ml in cases with a laparoscopic operation, that was statistically less than 486 ml in cases with an open operation (p<0.05), and 376 ml in all cases. There was no significant change in the creatinine clearance of cases with laparoscopic operation, compared with that of cases with an open operation. There were no other serious complications postoperatively. These findings suggested that partial nephrectomy with the MTC can be safely and successfully carried out while sparing renal function. Moreover, partial nephrectomy with the MTC for a laparoscopic operation may provide these patients with more benefits.
authors.affiliation: Department of Urology, Kochi Medical School.
authors.forename: Jo
authors.initials: J
authors.lastname: Yoshimichi
authors.forename: Keiji
authors.initials: K
authors.lastname: Inoue
authors.forename: Takashi
authors.initials: T
authors.lastname: Karashima
authors.forename: Takuya
authors.initials: T
authors.lastname: Hamaguchi
authors.forename: Kenji
authors.initials: K
authors.lastname: Tokinaga
authors.forename: Masayuki
authors.initials: M
authors.lastname: Kamada
authors.forename: Fumito
authors.initials: F
authors.lastname: Komatsu
authors.forename: Taro
authors.initials: T
authors.lastname: Shuin
authors.forename: Masakazu
authors.initials: M
authors.lastname: Chikazawa
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002292:Carcinoma, Renal Cell / Q000601:surgery; D003560:Cysts / Q000601:surgery; D004564:Electrocoagulation / Q000295:instrumentation*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007674:Kidney Diseases / Q000601:surgery; D007680:Kidney Neoplasms / Q000601:surgery; D010535:Laparoscopy / Q000379:methods*; D008297:Male; D008872:Microwaves / Q000627:therapeutic use*; D008875:Middle Aged; D009392:Nephrectomy / Q000295:instrumentation*; D016896:Treatment Outcome