[Transurethral microwave tissue coagulation therapy for carcinoma of urinary bladder: an analysis of 35 patients].
OBJECTIVE
To study the reliability of transurethral microwave tissue coagulation therapy for transitional epithelial carcinoma of the urinary bladder.


METHODS
The suitable microwave output was affirmed by studying its coagulation effect on pig and human bladder wall according to histo-morphologic changes: Based on this study, transurethral microwave tissue coagulation of bladder cancer (TUMTCBC) was carried out in 35 patients with bladder carcinoma. Biopies were taken from the microwave irradiated sites after the procedure. All patients were given regular intravesical chemotherapy with mitomycin C after microwave treatment and were followed-up for a mean of 56 months.


RESULTS
The treatment was effective in all of the treated patints. The recurrence rate and the tumor-free period in patients treated with TUMTCBC was comparable to those in patients treated with transurethral electric cauterization or partial cystectomy. In 19 cases (54.3%), no recurrence of tumor was found in 5 years.


CONCLUSIONS
TUMTCBC is safe, effective and easy to perform. It may be used for the treatment of both superficial and invasive bladder carcinoma.
Wu
Z
Z
Department of Urology, Shenzhen People's Hospital, Shenzhen 518020.
Lu
H
H
Luo
S
S
D000328:Adult; D000368:Aged; D005260:Female; D006801:Humans; D008297:Male; D008872:Microwaves / Q000627:therapeutic use*; D008875:Middle Aged; D001749:Urinary Bladder Neoplasms / Q000473:pathology / Q000628:therapy*