Preoperative superselective transarterial embolization in laparoscopic partial nephrectomy: technique, oncologic, and...

Area of Science:

• Urology
• Surgical Oncology
• Interventional Radiology

Background:

• Laparoscopic partial nephrectomy (LPN) is a standard treatment for renal tumors.
• Superselective arterial embolization (SEA) is an adjunct technique used prior to LPN.
• Evaluating the mid-term outcomes of LPN following SEA is crucial for understanding its efficacy.

Purpose of the Study:

• To report the mid-term oncologic and functional outcomes of 110 patients undergoing LPN after SEA for T1 renal tumors.
• To assess the safety and effectiveness of this combined approach.

Main Methods:

• A prospective database was used to collect data from 110 patients treated between August 2003 and August 2007.
• Patients underwent LPN after SEA for T1 renal tumors.
• Renal function was evaluated using (99m)Tc diethylenetetramine pentacetic acid renal scans preoperatively and at 3 and 12 months postoperatively.

Main Results:

• Mean operative time was 58 minutes with a mean blood loss of 106 mL.
• No conversion to open surgery was required; one patient needed radical nephrectomy.
• At a median follow-up of 41 months, two local recurrences were observed, and the median decrease in glomerular filtration rate was 5%.

Conclusions:

• Preoperative SEA enables LPN without hilar vessel clamping, mitigating ischemic damage.
• Oncologic outcomes are comparable to open surgery.
• Functional results are encouraging due to optimal preservation of renal function.