Microwave thermotherapy for benign prostatic hyperplasia with the dornier urowave: Results of a randomized, double-blind, multicenter, sham-controlled trial
Microwave thermotherapy for benign prostatic hyperplasia with the dornier urowave: Results of a randomized, double-blind, multicenter, sham-controlled trial
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DOI:
10.1016/s0090-4295(98)00051-x
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发表时间:
1998-01-01
期刊:
影响因子:
2.1
通讯作者:
Womack, S
中科院分区:
文献类型:
--
作者:
Roehrborn, CG;Preminger, G;Womack, S
Previously, prostate size did not play a significant role in the choice of treatment for benign prostatic hyperplasia (BPH). It has been postulated that prostate size does not correlate with symptom severity, flow rate, or the presence or absence of obstruction. However, in a published study of community-dwelling men, the odds of having moderate to severe symptoms were five times higher for men with enlarged prostates than for those with normal prostates. Response to certain types of BPH therapy, especially finasteride, depends on actual prostate volume. Therefore, it is important to have a simple way to accurately determine if a patient's prostate is enlarged. In an analysis of four studies, there was a distinct underestimation of prostate size by digital rectal examination (DRE) when compared with transrectal ultrasound (TRUS) measurement. The underestimation of prostate volume increased with increasing TRUS volume, particularly if the volume was greater than 30 mt. The average underestimation was between 9% and 12% for prostate volumes 30 to 39 mt and between 17% and 27% for prostate volumes 40 to 49 mL. Because of these results, a prospective study is currently in progress to develop models or visual aids to assist physicians in more accurately predicting a threshold prostate volume via DRE. (C) 1998, Elsevier Science Inc. All rights reserved.Objectives. To study the efficacy and safety of a new transurethral microwave thermotherapy device (the Urowave) in the treatment of men with clinical benign prostatic hyperplasia (BPH) in a randomized, double-blind, sham-controlled trial.Methods. A total of 220 patients (mean age 66.2 years) with clinical BPH, an American Urological Association symptom index (AUA SI) of 13 points or more, and a peak flow rate of 12 mL/s or less were enrolled and randomized 2:1 for active versus sham treatment. All treatments were conducted as an outpatient procedure under local anesthesia, with oral sedation and analgesia only. Patients were followed up at 1 week and 1, 3, and 6 months after treatment.Results. The treatments were well tolerated, and no patient received general or spinal anesthesia. The AUA SI dropped from 23.6 to 12.7 points at 6 months (P