Transurethral endoscopic treatment of upper urinary tract tumors using a holmium:YAG laser.
OBJECTIVE
The feasibility of treating upper urinary tract tumors with a holmium:YAG (Ho:YAG) laser in transurethral endoscopy was examined.


METHODS
Thirty-three treatments were performed on 30 patients with renal pelvic and ureteral carcinomas. After vaporization and coagulation eliminated the tumors, the surrounding mucosa was fully coagulated. Postoperative follow-up consisted of urinary cytology once a month, cystoscopy every 3 months, excretory pyelography every 6 months, and uretero-pyeloscopy every 6-12 months.


RESULTS
The recurrence rate after the first treatment was 86% in the imperative indication group. The tumor-free rate (median follow-up, 37 months) in the imperative indication group was 57%. In the elective indication group, those values were 20 and 95% (median follow-up, 33 months), respectively.


CONCLUSIONS
Transurethral endoscopic treatment of upper urinary tract tumors using Ho:YAG laser can be a useful method on limited cases identified into specific treatments groups combined with a strict follow-up.
Matsuoka
Kei
K
Department of Urology, Kurume University School of Medicine, Kurume City 8300011, Japan. keimat@med.kurume-u.ac.jp
Lida
Shizuka
S
Tomiyasu
Katsuro
K
Inoue
Michiro
M
Noda
Shinshi
S
D002295:Carcinoma, Transitional Cell / Q000601:surgery*; D004724:Endoscopy / Q000379:methods*; D006801:Humans; D007680:Kidney Neoplasms / Q000601:surgery*; D053685:Laser Therapy / Q000379:methods*; D016896:Treatment Outcome; D014516:Ureteral Neoplasms / Q000601:surgery*