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Percutaneous radiofrequency ablation in the treatment of the renal tumors
Hoffmann, Petr ; Krajina, Antonín (advisor) ; Janík, Václav (referee) ; Hořejš, Josef (referee)
Percutaneous radiofrequency ablation in the treatment of the renal tumors Aim: To retrospectively evaluate the technical success, mid-term and long-term efficacy and safety of radiofrequency ablation in patients with the renal tumors and integrate this method into present therapeutic template. Material and method: Between February 2006 and October 2013 totally 91 radiofrequency ablation procedures in 64 patients for 68 tumors of size 12 - 60 mm in largest diameter (median 27 mm) were performed. These ablations were done under the guidance of computerized tomography, in 5 cases was used the CT flouroscopy technique. We treated 41 males and 23 females, age 52 - 85 years (median 76 years). Main indications were solitary kidney tumors (14 cases) and tumors in non-surgical candidates (54 cases) due to high risk of general anesthesia. All the procedures were performed using standard technique of self-expandable multitined instruments in only local anesthesia and conscious sedation, which was done by anesthesiologist. The following-up of the patients after the ablations was based on regular imaging, clinical and laboratory examinations. In cases with residual tumorous tissue the reinterventions were performed. Results: The total follow-up period was 4 - 92 months (median 51 months). In 50 tumors (73,5 %)...

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