Background: Irreversible electroporation (IRE) is a novel technique to treat localized prostate cancer with the aim of achieving oncological control while reducing related side effects. We present the outcomes of localized prostate cancer treated with IRE from a multi-center prospective registry. Methods: Men with histologically confirmed prostate cancer were recruited to receive IRE. All the patients were proposed for prostate biopsy at 1-year post-IRE ablation. The functional outcomes were measured by the International Prostate Symptom Score (IPSS) and International Index of Erectile Function (IIEF-5) questionnaires. The safety of IRE was graded by the treatment-related adverse events (AEs) according to the Common Terminology Criteria for Adverse Events (CTCAE). Results: 411 patients were recruited in this study from July 2015 to April 2020. The median follow-up time was 24 months (IQR 15–36). 116 patients underwent repeat prostate biopsy during 12–18 months after IRE. Clinically significant prostate cancer (Gleason ≥ 3 + 4) was detected in 24.1% (28/116) of the patients; any grade prostate cancers were found in 59.5% (69/116) of the patients. The IPSS score increased significantly from 7.1 to 8.2 (p = 0.015) at 3 months but decreased to 6.1 at 6 months (p = 0.017). Afterwards, the IPSS level remained stable during follow-up. The IIEF-5 score decreased at 3 months from 16.0 to 12.1 (p < 0.001) and then maintained equable afterwards. The rate of AEs was 1.8% at 3 months and then dropped to less than 1% at 6 months and remained stable until 48 months after IRE. Major AEs (Grade 3 or above) were rare. Conclusion: For men with localized prostate cancer, IRE could achieve good urinary and sexual function outcomes and a reasonable oncological result. The real-world data are consistent with earlier studies, including recently published randomized controlled studies. The long-term oncological results need further investigation and follow-up.
23 October 2024 in Prostate Cancer and Prostatic Diseases
Background: Despite the evidence supporting the use of focal therapy (FT) in patients with localized prostate cancer (PCa), considerable variability exists in the patient selection criteria across current studies. This study aims to review the most recent evidence concerning the optimal approach to patient selection for FT in PCa. Methods: PubMed database was systematically queried for studies reporting patient selection criteria in FT for PCa before December 31, 2023. After excluding non-relevant articles and a quality assessment, data were extracted, and results were described qualitatively. Results: There is no level I evidence regarding the best patient selection approach for FT in patients with PCa. Current international multidisciplinary consensus statements recommend multiparametric magnetic resonance imaging (mpMRI) followed by MRI-targeted and systematic biopsy for all candidates. FT may be considered in clinically localized, intermediate risk (Gleason 3 + 4 and 4 + 3), and preferably unifocal disease. Patients should have an acceptable life expectancy. Those with prostate volume >50 ml and erectile dysfunction should not be excluded from FT. Prostate-specific antigen (PSA) level of < 20 (ideally < 10) ng/mL is recommended. However, the utility of other molecular and genomic biomarkers in patient selection for FT remains unknown. Conclusions: FT may be considered in well-selected patients with localized PCa. This review provides a comprehensive insight regarding the optimal approach for patient selection in FT.
6 January 2020 in Journal of Investigative Surgery
Background: Surgical trauma due to vaginal wall incision to extract the specimen during transvaginal hybrid Natural-Orifices-Transluminal-Endoscopic-Surgery (NOTES) nephrectomy can result in sexual dysfunction and have traumatic psychological impacts. We evaluated the alteration of sexual functions in the postoperative period. Methods: Patients who underwent a transvaginal NOTES nephrectomy were prospectively enrolled. Patients and their partners were evaluated with the Golombok-Rust Inventory of Sexual Satisfaction (GRISS) questionnaire pre- and post-operatively. Surgical characteristics were recorded. Results: Fifty-three patients (mean age: 52.72 ± 2.39 years; mean tumor size 4.77 ± 2.55 cm) were included. The total GRISS scores of all patients were similar in pre- and post-operative periods. Although females reported no change in the GRISS score, 60.4% of partners showed a drop in the total score. Non-communication and avoidance subdomains showed significant changes for females; males showed a significant change in avoidance, non-sensuality and dissatisfaction subdomains. Subgroup analyses showed that neither tumor stage nor nulliparous status did not affect total score changes for both genders. The trocar number and perioperative complication rates had no significant effects on total score changes. Conclusion: Sexual function can be affected after transvaginal NOTES nephrectomy and care should include a stringent approach to addressing sexual dysfunction. We support the transvaginal NOTES nephrectomy technique if adequate secondary measures to protect sexual function are taken.
Irreversible electroporation (IRE) is a recent and minimally invasive method of partial prostate ablation. However, knowledge of the essential landmarks of prostate anatomy is crucial to achieving safe and effective partial ablation by IRE. High-quality imaging of the prostate is essential before the procedure. The individual morphological pattern of the prostate must be taken into account and detailed mapping with measurement of the lesion is necessary to determine optimal needle placement. The entire tumour volume must be covered while ensuring the safety of critical anatomical structures such as the rectum, urethra, nerve bundles and sphincter muscle.