PURPOSE: Laparoscopic partial nephrectomy is the standard treatment for peripheric cT1 renal tumours and is usually performed under warm ischaemia. However, it is important to reduce ischaemia time as much as possible to avoid renal damage. The aim of our study was to investigate the feasibility and safety of our technique and to evaluate short-term functional and oncological results. MATERIALS AND METHODS: From June 2010 to December 2012, 54 consecutive patients with T1a-T1b renal tumour were enrolled in a high-volume tertiary institution. All patients underwent laparoscopic enucleation with controlled selective hypotension on demand. Karnofsky performance status scale, R.E.N.A.L. Nephrometry Score and Clavien-Dindo Classification were used to assess patients' status, to stratify patients according to kidney disease and to evaluate complications, respectively. Renal function was evaluated with serum creatinine (sCr) and estimated glomerular filtration rate (eGFR) preoperative and 3, 5, 7 and 90 days postoperatively. RESULTS: All the procedures were completed laparoscopically. Renal hypotension was necessary in 3/54 cases. Mean intraoperatively blood loss was 210 ± 98 ml. Renal carcinoma was found in 87 % patients. Margins revealed to be positive in 5.5 % cases. Mean hospital stay was 7.2 days. Grade IIIa and IIIb postoperative complications were 5.5 and 11 %, respectively. At 3 months, increase for sCr was 0.04 mg/dL; eGFR reduction was 1.2 ml/min. At a median follow-up of 20 months, there was one local recurrence that happened in a positive margin case. CONCLUSIONS: Our preliminary results proved laparoscopic enucleation with controlled selective local hypotension on demand to be a feasible, safe and effective technique for T1 renal tumours.
PURPOSE: Laparoscopic partial nephrectomy is the standard treatment for peripheric cT1renal tumours and is usually performed under warm ischaemia. However, it is important to reduce ischaemia time as much as possible to avoid renal damage. The aim of our study was to investigate the feasibility and safety of our technique and to evaluate short-term functional and oncological results. MATERIALS AND METHODS: From June 2010 to December 2012, 54 consecutive patients with T1a-T1b renal tumour were enrolled in a high-volume tertiary institution. All patients underwent laparoscopic enucleation with controlled selective hypotension on demand. Karnofsky performance status scale, R.E.N.A.L. Nephrometry Score and Clavien-Dindo Classification were used to assess patients' status, to stratify patients according to kidney disease and to evaluate complications, respectively. Renal function was evaluated with serum creatinine (sCr) and estimated glomerular filtration rate (eGFR) preoperative and 3, 5, 7 and 90 days postoperatively. RESULTS: All the procedures were completed laparoscopically. Renal hypotension was necessary in 3/54 cases. Mean intraoperatively blood loss was 210 ± 98 ml. Renal carcinoma was found in 87 % patients. Margins revealed to be positive in 5.5 % cases. Mean hospital stay was 7.2 days. Grade IIIa and IIIb postoperative complications were 5.5 and 11 %, respectively. At 3 months, increase for sCr was 0.04 mg/dL; eGFR reduction was 1.2 ml/min. At a median follow-up of 20 months, there was one local recurrence that happened in a positive margin case. CONCLUSIONS: Our preliminary results proved laparoscopic enucleation with controlled selective local hypotension on demand to be a feasible, safe and effective technique for T1 renal tumours.
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