Can ablation win against partial nephrectomy and become first line therapy in cT1a renal tumours?Sandbergen, Lauraa; Guven, Selcukb; Laguna, Maria Pilara,bCurrent Opinion in Urology: January 2019 - Volume 29 - Issue 1 - p 70–77 doi: 10.1097/MOU.0000000000000559 SPECIAL COMMENTARIES Buy SDC Abstract Author InformationAuthors Article MetricsMetrics Purpose of review Currently, small renal masses account for the largest proportion of renal tumour and small renal cell carcinomas (RCC). Although partial nephrectomy, whenever possible, is recognized as the gold standard for treatment, thermal ablation has gained increasing attention as optional treatment in a population sector harbouring small renal masses/small RCCs. The purpose of this review is to update comparative outcomes between these two options of treatment. Recent findings Recent observational case–control and population-based cohorts applying propensity score or inverse probability treatment weighted methodology adjusting for baseline patient and tumour characteristics, compare outcomes between partial nephrectomy and thermal ablation (both cryotherapy and radiofrequency), radical nephrectomy and thermal ablation and between thermal ablation and nonsurgical management. Most of them focus on T1aRCC. Summary Comparative outcomes’ evidence is limited to population-based or institutional series adjusted for baseline differences and systematic reviews. With exception of special clinical situations, thermal ablation provides similar estimated 5-year cancer and overall survival with a clear benefit in postoperative outcomes when compared to partial nephrectomy in cT1a older patients. The trade-off is more evident when thermal ablation is compared to radical nephrectomy. The advantages in terms of adverse events persist up to 1 year after treatment. Benefits are less apparent in solitary kidneys and when synchronous bilateral approaches are performed. aUMC Amsterdam, AMC University of Amsterdam, Amsterdam, The Netherlands bDepartment of Urology, Istanbul Medipol University, Istanbul, Turkey Correspondence to Maria Pilar Laguna, MD, PhD, Department of Urology, Istanbul Medipol University, Göztepe Mahallesi, Metin Sk. No 4, 34214 Bağcılar/İstanbul, Turkey. Tel: +90 0212 460 77 77; e-mail: email@example.com Copyright © 2019 Wolters Kluwer Health, Inc. All rights reserved.