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[Partial nephrectomy for renal cell carcinoma using a microwave tissue coagulator--postoperative recurrence and renal
Kiyohide Fujimoto1, Nobumichi Tanaka, Yoshihiko Hirao
1The Department of Urology, Nara Medical University.
Hinyokika Kiyo. Acta Urologica Japonica
|September 17, 2005
Summary
Partial nephrectomy using microwave tissue coagulator (MTC) is a safe and effective nephron-sparing surgery for small renal cell carcinoma (RCC). This technique offers a high survival rate and preserves renal function, making it a reliable option for T1 RCC treatment.
Area of Science:
- Urology
- Oncology
- Surgical Innovation
Context:
- Partial nephrectomy is the standard for small renal cell carcinoma (T1a RCC) due to its favorable prognosis.
- Microwave tissue coagulator (MTC) offers a non-ischemic approach to partial nephrectomy.
- Evaluating MTC's efficacy in T1 RCC patients is crucial for refining surgical techniques.
Purpose:
- To assess the methodological utility and treatment outcomes of partial nephrectomy using MTC in T1 RCC patients.
- To determine the safety, efficacy, and renal function preservation of MTC-assisted partial nephrectomy.
- To establish predictive factors for postoperative renal function following MTC partial nephrectomy.
Summary:
- A study of 121 patients (124 kidneys) with T1 RCC undergoing MTC partial nephrectomy showed a median operation time of 150 minutes and median blood loss of 217 ml.
- Postoperative renal function was preserved, predictable by preoperative serum creatinine and renal volume.
- The 5-year overall survival rate was 91%, with 107 patients alive and disease-free at a mean follow-up of 37.9 months.
Impact:
- MTC-assisted partial nephrectomy is a simple, reliable, and nephron-sparing surgical option for small RCC.
- This technique demonstrates excellent oncological outcomes with minimal impact on renal function.
- The findings support MTC as a valuable tool in urologic oncology for kidney-sparing procedures.