Background/objective: To present the long-term result and efficacy of robotic partial nephrectomy (RPN) for renal angiomyolipomas (AMLs) with perioperative outcome and renal function preservation.
Methods: From September 2006 to October 2014, the database of a single medical center was reviewed and patients who underwent RPN for AMLs were enrolled. The patient demographics, perioperative complications, and postoperative outcomes were analyzed.
Results: We identified 23 patients who were treated with RPN for renal AMLs. The average age was 52.7 (± 9.9) years, and 20 (87%) patients were female. The median size of the resected AML was 5.2 [interquartile range (IQR)=3.1-6.8] cm. The median estimated blood loss was 100 (IQR=50-225) mL, and three (13%) patients required blood transfusion. Perioperative complications occurred in six (26%) patients and none of them are higher than Clavien Grade II. The median estimated glomerular filtration rate at 3-month and the latest follow-ups were 103 (IQR=85.5-112) mL/min/1.73m2 and 104 (IQR=90-112) mL/min/1.73m2, respectively, with a median of 89.6% (IQR=84.2-100) and 86.9% (IQR=81.3-97.8) preservation, respectively. The median follow-up period was 40 (IQR=30.5-61.5) months. None of the patients developed complications requiring a second intervention or local recurrence of AML.
Conclusion: A long-term follow-up of RPN for renal AMLs revealed good preservation of renal function with a low complication rate. It may be considered as a reliable method to manage renal AMLs.
Keywords: angiomyolipoma; da Vinci; kidney; partial nephrectomy; robot.
Copyright © 2016. Published by Elsevier Taiwan.