High-intensity focused ultrasound is a relatively new technique for the treatment of human benign prostatic hyperplasia. It is now clear that it is a safe treatment. Whether it is as effective as other treatments, such as transurethral prostatectomy, is not known. Patients in whom the site of destruction of the prostatic tissue is periurethral appear to have better results. Simple and random debulking of the prostate with focused ultrasound is not as efficient a treatment as removing the periurethral tissue.
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