Abstract | OBJECTIVES: METHODS: From May 2003 to present, 137 consecutive patients with T1-2 prostate cancer were treated using the Sonablate 500 and then followed for more than 12 months after their last HIFU treatment. A prostate biopsy was routinely carried out at 6 months and serum prostate-specific antigen (PSA) was measured every 3 months after HIFU. Oncological outcomes as well as treatment-related complications were assessed. Disease-free survival (DFS) was judged using the Phoenix definition (PSA nadir + 2 ng/mL), negative histological findings and no local or distant metastasis. RESULTS: The median follow up after HIFU was 36 months (range 12-84 months). No patients received adjuvant therapy during this period. The PSA nadir occurred at 2 months after HIFU and the median level was 0.07 ng/mL (0.01-2.01 ng/mL). Of the 133 patients who underwent prostate biopsy or transurethral resection of the prostate at 6 months or later after HIFU, six were positive for cancer cells (4.5%). There were no major postoperative complications, but urge incontinence (16 cases) and dysuria (33 cases) occurred after removal of the urethral catheter. The 5-year DFS rate was 78% based on these criteria, and 91%, 81% and 62% in the low-, intermediate- and high-risk group, respectively. CONCLUSIONS: HIFU represents an effective, repeatable and minimally invasive treatment. It is particularly effective for low- and intermediate-risk patients, and it should be considered as an option for localized prostate cancer.
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Authors | Yoji Inoue, Keisuke Goto, Tetsutaro Hayashi, Mutsuo Hayashi |
Journal | International journal of urology : official journal of the Japanese Urological Association
(Int J Urol)
Vol. 18
Issue 5
Pg. 358-62
(May 2011)
ISSN: 1442-2042 [Electronic] Australia |
PMID | 21449970
(Publication Type: Journal Article)
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Copyright | © 2011 The Japanese Urological Association. |
Chemical References |
- Prostate-Specific Antigen
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Topics |
- Aged
- Aged, 80 and over
- Biopsy
- Constriction, Pathologic
(etiology, pathology)
- Disease-Free Survival
- Erectile Dysfunction
(etiology)
- Follow-Up Studies
- Humans
- Male
- Middle Aged
- Neoplasm Staging
- Proportional Hazards Models
- Prostate-Specific Antigen
(blood)
- Prostatic Neoplasms
(blood, pathology, therapy)
- Treatment Outcome
- Ultrasound, High-Intensity Focused, Transrectal
(adverse effects)
- Urethra
(pathology)
- Urination Disorders
(etiology)
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