Original scientific paper
https://doi.org/10.20471/acc.2023.62.s2.6
Short-Term Outcomes of Percutaneous Radiofrequency and Microwave Ablation in the Treatment of Small Renal Masses
Lora Grbanović
; Department of Diagnostic and Interventional Radiology, Zagreb University Hospital Center, Zagreb, Croatia
*
Ana Marija Alduk
; Department of Diagnostic and Interventional Radiology, Zagreb University Hospital Center, Zagreb, Croatia
Nikola Knežević
; Department of Urology, Zagreb University Hospital Center, Zagreb, Croatia; School of Medicine, University of Zagreb, Zagreb, Croatia
Željko Kaštelan
; Department of Urology, Zagreb University Hospital Center, Zagreb, Croatia; School of Medicine, University of Zagreb, Zagreb, Croatia
Tvrtko Hudolin
; Department of Urology, Zagreb University Hospital Center, Zagreb, Croatia; School of Medicine, University of Zagreb, Zagreb, Croatia
Maja Prutki
; Department of Diagnostic and Interventional Radiology, Zagreb University Hospital Center, Zagreb, Croatia; School of Medicine, University of Zagreb, Zagreb, Croatia
* Corresponding author.
Abstract
Although the gold standard in the management of kidney tumors is surgical treatment,
thermal ablation methods are a viable therapeutic option for patients with small (<4 cm) renal
masses who are poor surgical candidates. The aim of this study was to compare the technical success,
primary efficacy and complication rate of percutaneous radiofrequency and microwave ablation in the
treatment of small renal masses. A retrospective analysis of consecutive patients with small renal masses
treated with radiofrequency or microwave ablation between December 2017 and January 2022 was conducted.
Response to the ablative therapy was assessed on contrast-enhanced computed tomography examination
after 3 months. Ablations of 44 kidney lesions were performed in 43 patients. Sixteen lesions
were treated with radiofrequency and 28 with microwave ablation. Both methods were associated with
high technical success (100%). Primary efficacy rates of radiofrequency and microwave ablation were
81.3% and 89.3%, respectively. Ablation-related complications were noted only in the patients treated
with microwave ablation (18.5%), all of them being low grade (Clavien-Dindo 1 and 2). Radiofrequency
and microwave ablation exhibited comparable efficacy in the treatment of small renal masses. Microwave
ablation was associated with a comparatively higher number of complications.
Keywords
Kidney neoplasms; Ablation techniques; Radiofrequency ablation; Microwave ablation
Hrčak ID:
309040
URI
Publication date:
31.7.2023.
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