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- W2971504695 abstract "Recent evidence from EMBRACE shows that around 16% patients with locally advanced cervical cancer (LACC) have residual tumor in distal parametrium (DP) and pelvic wall disease (LPW) after concurrent radio-chemotherapy (CCRT). Adequate target coverage with standard brachytherapy approaches represents a challenge. Therefore, we modified the Vienna I applicator with an add-on cap allowing for additional oblique needles into the DP/LPW (Vienna II). We report here the feasibility and clinical outcomes using Vienna II applicator in LACC patients treated in 2 institutions.69 patients with residual disease in DP/LPW after CCRT were accrued. FIGO (2009) stage was 26% IIB, 52% III, 15% IVA, 7% IVB (para-aortic nodes). At diagnosis 91% had disease involving DP/LPW. After CCRT, patients underwent image guided adaptive brachytherapy (IGABT) using Vienna II applicator. IGABT details, acute complications, dose volume parameters and clinical outcome variables were compiled and analyzed.Residual DP/LPW disease at BT was found in 90% patients. Median total number of needles were 7 [3-15], oblique 4 [1-7]. Manageable intraoperative utero-vaginal complications occurred in 8 patients and manageable arterial bleeding in 6 patients during removal. Mean distance between tandem and outer contour of CTVHR was 38 mm and mean CTVHR (±SD) volume was 69 ± 32 cm3. The mean D90 CTVHR was 86 ± 7 Gy (EQD2) and mean (±SD) D2cm3 (Gy, EQD2) 86 ± 12, 68 ± 7, 68 ± 9 for bladder, rectum and sigmoid respectively. Actuarial LC, PFS, OS at 3/5 years was 76/72%, 56/50%, 62/54% and G3-4 late toxicities (n = 23) were observed in 14 patients (20%).IGABT using Vienna II applicator allows for appropriate target coverage in tumors extending into DP/LPW at the time of BT. Clinical use is feasible and results in good local control, DFS and OS with moderate rate of acute and late ≥G3 toxicity." @default.
- W2971504695 created "2019-09-12" @default.
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- W2971504695 date "2019-12-01" @default.
- W2971504695 modified "2023-10-01" @default.
- W2971504695 title "Vienna-II ring applicator for distal parametrial/pelvic wall disease in cervical cancer brachytherapy: An experience from two institutions: Clinical feasibility and outcome" @default.
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- W2971504695 doi "https://doi.org/10.1016/j.radonc.2019.08.004" @default.
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