engleski

Radiofrequency ablation in renal cancer: open surgery and retroperitoneoscopic way

Aim: Our primary aim was to excise the renal tumour >4 cm in two patients with exophytic renal tumours within a healthy margin. Both patients had a healthy contralateral kidney. Long-term studie is necessary to confirm lasting efficacy for optimal modality tumour treatment. M&M: First patient, 49-aged patient with tumour 3, 5 cm in diameter on the upper pole of the left kidney underwent open surgery radiofrequent tumour ablation. After left sided clasical lumbotomy without clamping the hilar vessels a 3, 3 mm CelonProSurge plus bipolar coagulation electrodes (Olympus) were placed into an upper-pole left renal tumour. After the radiofrequent treatment, an tumour excision was performed. Second patient, 84-aged with exophytic tumour 4 cm in diameter on the posterior side of the right kidney and normal contralateral kidney, underwent retroperitoneo-scopic radiofrequent tumour ablation. Results: The first patient had minimal intraoperative blood loss. The operating time was 120 minutes. The second patient had also minimal intraoperative blod loss but had delayed haemorrhage and thrid day after the operation an transfusions were given (700 concentrated red blood cells). Operating time was 155 minutes. Contrast material-enhanced CT of right kidney one year after treatment demonstrates shrinkage of treated region but continued abutment of treated region but no residual or recurent tumour was found. Conclusion: Our data indicate that RFA can completely destroy renal tumours. More studies are needed to ensure that technique is an effective and reproducible treatment.

kidney cancer; radiofrequent treatment; coagulation electrodes; tumour excision

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