Oncologic outcomes in patients treated with endoscopic robot assisted simple enucleation (ERASE) for renal cell carcinoma: Results from a tertiary referral center.

Open Simple Enucleation (OSE) has been demonstrated to be an oncologically safe alternative to standard partial nephrectomy. We assessed the mid-term oncologic outcomes and predictors of disease recurrence in patients treated with Endoscopic Robot-Assisted Simple Enucleation (ERASE) verified through a standardized reporting system at a single institution.

The clinical data of patients treated with ERASE for renal cell carcinoma at our Institution from January 2012 to September 2018 were retrospectively reviewed. Surface-Intermediate-Base (SIB) score was evaluated immediately after surgery. Patients with a ≥2 SIB score were excluded. The local and distant recurrence rates, the recurrence-free (RFS), cancer-specific (CSS) and overall (OS) survival were assessed. Kaplan-Meier and log-rank test were used to estimate survivals and to compare recurrence-free survival.

Overall, 259 patients were considered eligible for the present study. The median PADUA score was 7 (interquartile range [IQR] 6-9). Positive surgical margins (PSM) were registered in 7 (2.7%) cases. Median (IQR) follow-up time was 36 (27-51) months. Overall, 4 (1.5%) patients experienced systemic recurrence (SR) and 5 (1.9%) patients experienced local recurrence alone (LR) of whom 3 (1.1%) were on tumor resection bed, and 2 (0.8%) experienced recurrence elsewhere in the ipsilateral kidney. The 5-year RFS, CSS and OS were 94.2%, 98.9% and 93.6%, respectively. Higher nucleolar grade and PSM were the two factors significantly associated with worse RFS.

ERASE is a safe procedure, achieving negative surgical margins in the vast majority of patients and providing excellent mid-term local control and oncologic outcomes.

European journal of surgical oncology : the journal of the European Society of Surgical Oncology and the British Association of Surgical Oncology. 2019 Apr 04 [Epub ahead of print]

Andrea Mari, Fabrizio Di Maida, Riccardo Tellini, Riccardo Campi, Simone Sforza, Andrea Cocci, Giampaolo Siena, Gianni Vittori, Agostino Tuccio, Lorenzo Masieri, Alberto Lapini, Maria Rosaria Raspollini, Marco Carini, Andrea Minervini

Department of Urology, University of Florence, Unit of Oncologic Minimally-Invasive Urology and Andrology, Careggi Hospital, Florence, Italy., Histopathology and Molecular Diagnostics. University Hospital Careggi, Florence, Italy., Department of Urology, University of Florence, Unit of Oncologic Minimally-Invasive Urology and Andrology, Careggi Hospital, Florence, Italy. Electronic address: .

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