Khan F, et al. - In this study, the physicians sought to evaluate the technical success of image-guided percutaneous cryoablation of renal masses in difficult anatomic locations using adjunctive techniques to displace critical structures away from the ablation zone. Furthermore, they reported longer-term outcomes within this patient population. In difficult locations, adjunctive techniques to ablate renal masses provided technical success, safety, and favorable long-term outcomes.

Methods

• An IRB approved, retrospective analysis of 92 renal masses treated with percutaneous cryoablation was analyzed.
• Fifteen cases were revealed utilizing adjunctive techniques.
• The physicians evaluated tumor size and distance to adjacent organ before and after adjunctive technique and long-term outcomes.

Results

• Hydrodissection (n = 15) and angioplasty balloon interposition (n = 1) were the used adjunctive techniques.
• Median tumor proximity to closest organ was 4 mm and 26 mm, before and after adjunctive technique, respectively.
• In this study, all cases had appropriate ablation zones and protection of adjacent critical structures.
• No evidence of recurrence or complication was found on follow-up (median 51 months).