Ablative Therapies for Localized Primary Renal Cell Carcinoma
Abstract
Surgery with either partial or radical nephrectomy remains the standard of care for localized primary renal cell
carcinoma (RCC). However, most RCCs are detected in an older age group, and some may have multiple comorbidities
that preclude surgery. Thermal ablation (TA) with radiofrequency ablation (RFA), cryoablation (CA), or microwave
ablation (MWA) is considered an alternative to extirpative surgical procedures for select patients with small renal
tumors. There is more than 90% post-ablation local control in carefully selected patients with reported complication
rates of less than 10%. Most thermal ablation require only a single procedure. More recently, stereotactic ablative
body radiotherapy (SABR) has emerged as an attractive noninvasive treatment modality for elderly patients with
comorbidities and localized RCC. It has shown more than 90% local control rates for both small and relatively larger
tumors (> 4 cm). Modest post-SABR renal function decline has been observed. Despite most patients presenting with
mild or moderate chronic kidney disease there is less than a 5% chance of progression to end-stage renal disease. This
article aims to summarize the key evidence and ablative treatment’s optimal patient selection, efficacy, and toxicity.
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