Radiofrequency ablation treatment for renal cell carcinoma: early clinical experience.
OBJECTIVE
To evaluate the early clinical experience associated with radiofrequency (RF) ablation in patients with renal cell carcinoma (RCC).


METHODS
The RF ablation treatment was performed on 17 tumors from 16 patients (mean age, 60.5 years; range, 43-73 years) with RCC. The treatment indications were localized, solid renal mass, comorbidities, high operation risk, and refusal to perform surgery. All tumors were treated by a percutaneous CT (n = 10), followed by an US-guided (n = 2), laparoscopy-assisted US (n = 2), and an open (n = 2) RF ablation. Furthermore, patients underwent a follow-up CT at one day, one week, one month, three and six months, and then every six months from the onset of treatment. We evaluated the technical success, technical effectiveness, ablation zone, benign periablation enhancement, irregular peripheral enhancement, and complications.


RESULTS
All 17 exophytic tumors (mean size, 2.2 cm; range, 1.1-5.0 cm) were completely ablated. Technical success and effectiveness was achieved in all cases and the mean follow-up period was 23.8 months (range, 17-33 months). A local recurrence was not detected in any of the cases; however, five patients developed complications as a result of treatment, including hematuria (n = 2), mild thermal injury of the psoas muscle (n = 1), mild hydronephrosis (n = 1), and fistula formation (n = 1).


CONCLUSIONS
The RF ablation is an alternative treatment for exophytic RCCs and represents a promising treatment for some patients with small RCCs.
Park
Seong-Hoon
SH
Department of Radiology, Dong-A University College of Medicine, Busan, Korea.
Yoon
Seong Kuk
SK
Cho
Jin Han
JH
Oh
Jong Young
JY
Nam
Kyung Jin
KJ
Kwon
Hee-Jin
HJ
Kim
Su-Yeon
SY
Kang
Myong Jin
MJ
Choi
Sunseob
S
Sung
Gyung Tak
GT
D000328:Adult; D000368:Aged; D002292:Carcinoma, Renal Cell / Q000000981:diagnostic imaging / Q000601:surgery*; D017115:Catheter Ablation / Q000009:adverse effects; D005260:Female; D006801:Humans; D007680:Kidney Neoplasms / Q000000981:diagnostic imaging / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D014057:Tomography, X-Ray Computed