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  • Title: RFA versus robotic partial nephrectomy for T1a renal cell carcinoma: a propensity score-matched comparison of mid-term outcome.
    Author: Park BK, Gong IH, Kang MY, Sung HH, Jeon HG, Jeong BC, Jeon SS, Lee HM, Seo SI.
    Journal: Eur Radiol; 2018 Jul; 28(7):2979-2985. PubMed ID: 29426988.
    Abstract:
    OBJECTIVE: To compare oncological and functional mid-term outcomes following robotic partial nephrectomy (RPN) and radiofrequency ablation (RFA) for treating T1a renal cell carcinoma (RCC) using propensity score-matching. METHODS: Between December 2008-April 2016, 63 patients from each treatment group were propensity score-matched for age, sex, American Society of Anesthesiologists score, tumour size, tumour laterality, tumour histology, R.E.N.A.L. nephrometry score and preoperative estimated glomerular filtration rate (eGFR). Post-treatment follow-up periods for RPN and RFA ranged from 1-90 months (median, 24.6) and 1-65 months (21), respectively. Tumour location, percentage of eGFR preservation and 2-year recurrence-free survival rate were compared between groups. RESULTS: Exophytic and endophytic RCC occurred in 73.0 % (46/63) and 27.0 % (17/63) of the RPN group, and 52.4 % (33/63) and 47.6 % (30/63) of the RFA group, respectively (p=0.017). There was 91.7 % preservation of eGFR in the RPN group and 86.8 % in the RFA group (p=0.088). Two-year recurrence-free survival rate was 100 % in the RPN and 95.2 % in the RFA group (p=0.029). CONCLUSIONS: RPN provides a higher recurrence-free survival rate than RFA. However, RFA is a better treatment option for an endophytic or recurrent RCC that is difficult to treat with RPN. KEY POINTS: • RPN provides a higher recurrence-free survival rate than RFA. • Unlike RPN, repeat RFA is easy to perform for recurrent RCC. • Endophytic RCC could be better treated with RFA.
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