Laparoscopic Non-Ischemic Partial Nephrectomy Using a Microwave Tissue Coagulator : A Single-Institutional Study

Hinyokika kiyo. Acta urologica Japonica
Shinji FukuiShoji Samma

Abstract

We retrospectively investigated the surgical outcomes of renal cell carcinoma (RCC), perioperative complications, and residual renal function in patients receiving laparoscopic non-ischemic partial nephrectomy using a microwave tissue coagulator (MTC). Between January 2002 and December 2015, laparoscopic non-ischemic partial nephrectomy using MTC was performed in 49 patients. The histological diagnosis was RCC in 38 patients, angiomyolipoma in 4, oncocytoma in 2, and others in 5. A histologicallyproven positive surgical margin was observed in 1 (2.0%). Postoperative urine leakage occurred in 1, and it was treated conservatively. The mean follow-up period was 32.0 months. Although there was no patient who died of RCC, local recurrence occurred in 2 patients (4.1%) during the follow-up period. One of these 2 patients had a positive surgical margin. Deterioration of the residual renal function was not observed. Laparoscopic non-ischemic partial nephrectomy using MTC was safe and useful in terms of cancer control and preservation of renal function.

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