1. Feasibility and safety of targeted focal microwave ablation of the index tumor in patients with low to intermediate risk prostate cancer: Results of the FOSTINE trial.
- Author
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Barry Delongchamps N, Schull A, Anract J, Abecassis JP, Zerbib M, Sibony M, Jilet L, Abdoul H, Goffin V, and Peyromaure M
- Subjects
- Humans, Male, Middle Aged, Aged, Magnetic Resonance Imaging, Neoplasm Grading, Treatment Outcome, Ablation Techniques methods, Ablation Techniques adverse effects, Prostate-Specific Antigen blood, Prostatic Neoplasms surgery, Prostatic Neoplasms pathology, Microwaves therapeutic use, Feasibility Studies
- Abstract
Objective: To assess the feasibility, safety and precision of organ-based tracking (OBT)-fusion targeted focal microwave ablation (FMA), in patients with low to intermediate risk prostate cancer., Patients and Method: Ten patients with a visible index tumor of Gleason score ≤3+4, largest diameter <20mm were included. Transrectal OBT-fusion targeted FMA was performed using an 18G needle. Primary endpoint was the evidence of complete overlap of the index tumor by ablation zone necrosis on MRI 7 days after ablation. Urinary and sexual function were assessed with IPSS, IIEF5 and MSHQ-EjD-SF. Oncological outcomes were assessed with PSA at 2 and 6 months, and re-biopsy at 6 months., Results: Median [IQR] age was 64.5 [61-72] years and baseline PSA was 5 [4.3-8.1] ng/mL. Seven (70%) and 3 (30%) patients had a low and intermediate risk cancer, respectively. Median largest tumor axis was of 11 [9.0-15.0] mm. Median duration of procedure was of 82 [44-170] min. No patient reported any pain or rectal bleeding, and all 10 patients were discharged the next day. Seven days after ablation, total necrosis of the index tumor on MRI was obtained in eight (80% [95%CI 55%-100%]) patients. One patient was treated with radical prostatectomy. Re-biopsy at 6 months in the other 9 did not show evidence of cancer in 4 patients. IPSS, IIEF-5 and MSHQ-EjD-SF were not statistically different between baseline and 6 months follow up., Conclusions: OBT-fusion targeted FMA was feasible, precise, and safe in patients with low to intermediate risk localized prostate cancer., Competing Interests: I have read the journal’s policy and the authors of this manuscript have the following competing interests: N Barry Delongchamps is Consultant for Koelis. This does not alter our adherence to PLOS ONE policies on sharing data and materials.
- Published
- 2021
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