Danish Study Finds Ablation Matches Surgery for Small Kidney Cancers Over Long Term

Overview

• Researchers analyzed 1,862 Danish adults with T1a renal cell carcinoma diagnosed 2013–2021, comparing ablation (540), tumor resection (1,002) and nephrectomy (320), with results published in Radiology.
• Across 2–10 years of follow-up through 2023, ablation showed no higher risk of cancer progression than resection, supporting similar long-term effectiveness.
• Local recurrence was modestly higher after ablation at 2.41% versus 1.20% after resection and 0% after nephrectomy, yet recurrences were successfully managed without worse overall survival.
• Distant metastasis occurred more often after nephrectomy at 4.38% compared with 1.90% after resection and 1.67% after ablation.
• Ablation patients typically went home the same day and had fewer 30-day post-treatment contacts, indicating fewer immediate complications in real-world practice.