Local recurrence of prostate cancer after external beam radiotherapy: Early experience of salvage therapy using high-intensity focused ultrasonography

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Abstract

Objectives To evaluate the efficacy and safety of a salvage therapy using transrectal high-intensity focused ultrasonography (HIFU) for locally recurrent prostate cancer after external beam radiotherapy. Methods All patients were treated with HIFU under general or spinal anesthesia. Specific parameters were progressively defined to avoid any rectal damage. Patient follow-up included sextant biopsy and prostate-specific antigen (PSA) measurement. Results A total of 71 patients were included in this series. The main baseline characteristics before HIFU were mean age 67 ± 5.86 years, mean prostate volume 21.4 ± 11.1 cm3, and mean PSA level 7.73 ± 8.10 ng/mL. All biopsies were positive, with a pre-HIFU Gleason score of 2 to 6 in 24 patients, 7 in 13 patients, and 8 to 10 in 34 patients. The mean patient follow-up was 14.8 months (range 6 to 86). After HIFU treatment, 57 (80%) of the 71 patients had negative biopsies, and 43 (61%) of 71 had a nadir PSA level of less than 0.5 ng/mL. The nadir level was obtained within 3 months. At the last follow-up, 44% of the patients had no evidence of any disease progression. The adverse events related to HIFU included rectourethral fistula in 6%, grade 3 incontinence in 7%, and bladder neck stenosis in 17%. No rectal injury occurred with the use of specific parameters. Conclusions HIFU appears to be a promising treatment option with a curative chance for patients with local recurrence after external beam radiotherapy. The HIFU-related morbidity was lower than the morbidity reported after other types of salvage therapy, leading to a favorable risk/benefit ratio. © 2004 Elsevier Inc.

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Gelet, A., Chapelon, J. Y., Poissonnier, L., Bouvier, R., Rouvière, O., Curiel, L., … Vallancien, G. (2004). Local recurrence of prostate cancer after external beam radiotherapy: Early experience of salvage therapy using high-intensity focused ultrasonography. Urology, 63(4), 625–629. https://doi.org/10.1016/j.urology.2004.01.002

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