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Nandanan N, Veccia A, Antonelli A, Derweesh I, Mottrie A, Minervini A, Aron M, Simone G, Capitanio U, Simeone C, Eun D, Perdona S, Porter J, Sundaram C, Zhang C, Uzzo R, Challacombe B, Hampton LJ, Kaouk J, Porpiglia F, Autorino R
Outcomes and predictors of benign histology in patients undergoing robotic partial or radical nephrectomy for renal masses: a multicenter study
Cent European J Urol (2020) 73:33-38.
Abstract
Introduction: Theaim of this study was to assess preoperative factors associated with benign histology in patients undergoing surgical removal of a renal mass and to analyze outcomes of robotic partial nephrectomy (PN) and radical nephrectomy (RN) for these masses. Material and methods: Overall, 2,944 cases (543 benign and 2,401 malignant) who underwent robotic PN and RN between 2003-2018 at 10 institutions worldwide were included. The assessment of the predictors of benign histology was made at the final surgical pathology report. Descriptive statistics, Mann-Whitney U, Pearson's chi(2), and logistic regression analysis were used. Results: Patients in the benign group were mostly female (61 vs. 33%; p <0.001), with lower body mass index (BMI) (26.0 vs. 27.1 kg/m(2); p <0.001). The benign group presented smaller tumor size (2.8 vs. 3.5 cm; p <0.001), R.E.N.A.L. score (6.0 vs. 7.0; p <0.001). There was a lower rate of hilar (11 vs.18%; p = 0.001), cT>/=3 (1 vs. 4.5%; p <0.001) tumors in the benign group. There was a statistically significant higher rate of PN in the benign group (97 vs. 86%; p <0.001) as well as a statistically significant lower 30-day re-admission rate (2 vs. 5%; p = 0.081). Multivariable analysis showed male gender (OR: 0.52; p <0.001), BMI (OR: 0.95; p <0.001), and cT3a (OR: 0.22; p = 0.005) to be inversely associated to benign histology. Conclusions: In 18% of cases, a benign histologic type was found. Only 3% of these tumors were treated with RN. Female gender, lower BMI, and higher T staging showed to be independent predictors of benign histology.
Note
Publication Date: 2020-01-01.
PMCID: PMC7203778
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Last updated on Friday, August 07, 2020