Hand-assisted laparoscopic partial nephrectomy after 60 cases: comparison with open partial nephrectomy |
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Authors: | William B. DeVoe Kent W. Kercher William W. Hope Amy E. Lincourt H. James Norton Chris M. Teigland |
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Affiliation: | (1) Department of Urology, Carolinas Medical Center, 1000 Blythe Boulevard, Charlotte, NC 28203, USA;(2) Department of General Surgery, Carolinas Medical Center, 1000 Blythe Boulevard, Charlotte, NC 28203, USA;(3) 1023 Edgehill Road South, Charlotte, NC 28207, USA |
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Abstract: | Background Partial nephrectomy is the surgical standard of care for favorably located, small renal tumors. As the incidence of renal cell carcinoma (RCC) and detection of small kidney masses have increased over the past 20 years, minimally invasive management of these lesions has become more common. We report our single-institution experience with hand-assisted laparoscopic partial nephrectomy (HALPN) compared with open partial nephrectomy (OPN). Methods Relevant outcome and demographic information was collected prospectively for HALPNs (N = 60) and retrospectively for OPNs (N = 40). A p-value of < 0.05 denotes statistical significance. Results Average tumor size (2.6 cm HALPN versus 2.6 cm OPN, p = 0.97) was similar. Mean operative times were shorter for HALPN compared with OPN (161 versus 191 min, p = 0.027). HALPN was also associated with less blood loss (mean 120 cc versus 353 cc, p = 0.0003). Warm ischemia time was shorter for HALPN (mean 27.0 min versus 33.0 min, p = 0.035), as was hospital stay (mean 4.9 days versus 6.9 days, p = 0.007). Although four HALPN renal tumors required intraoperative margin re-excision (based on immediate gross evaluation by a pathologist), the final positive margin rate was 0%. A 5% final positive margin rate was observed in the OPN group. There were two conversions from HALPN to HAL radical nephrectomy and no conversions to an open technique. The HALPN minor complication rate was 18.3% versus 32.5% for OPN (p = 0.10). Complications included delayed bleeding (1, 2.5% OPN), urine leak (2, 5% OPN; 2, 3.3% HALPN), hypoxia, and nausea or fever lasting >3 days. Tumor pathology was as follows: 80.7% and 80% RCC, 12.3% and 8% oncocytoma, and 7% and 12% angiomyolipoma, for HALPN and OPN, respectively in each case. Conclusions HALPN is associated with diminished blood loss, operating time, warm ischemia time, positive margin rates, and length of stay compared with OPN. In our institution, HALPN is the standard approach for patients with small, surgically accessible renal tumors. |
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Keywords: | Kidney Nephrectomy Laparoscopy Hand-assisted Carcinoma Renal cell |
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