Periarterial papaverine improves early postoperative renal function after retroperitoneoscopic partial nephrectomy.

Area of Science:

• Urology
• Nephrology
• Surgical Research

Background:

• Retroperitoneoscopic partial nephrectomy (PN) is a standard procedure for kidney tumor removal.
• Assessing and preserving postoperative renal function, particularly glomerular filtration rate (GFR), is crucial after PN.
• Periarterial papaverine has been explored for its potential nephroprotective effects in renal surgery.

Purpose of the Study:

• To evaluate the impact of intraoperative periarterial papaverine application on postoperative GFR following retroperitoneoscopic PN.
• To determine if papaverine administration mitigates the decline in renal function after PN.

Main Methods:

• A comparative study involving patients undergoing retroperitoneoscopic PN.
• Patients receiving periarterial papaverine (50 mg) were matched with a control group who did not receive papaverine.
• Matching criteria included preoperative GFR, tumor size, ischemia time, and operative time.

Main Results:

• The papaverine group (n=37) showed a significantly smaller relative decrease in GFR (5.3%) compared to the control group (n=37, 12.5%; P=0.02).
• Postoperative GFR was higher in the papaverine group (91.8 ml/min/1.72 m(2)) versus controls (86.4 ml/min/1.72 m(2)).
• No papaverine-related side effects or surgical complications were observed.

Conclusions:

• Periarterial papaverine application appears to improve postoperative renal function after retroperitoneoscopic PN.
• This nephroprotective effect may be especially beneficial for patients with pre-existing renal impairment.
• Papaverine did not hinder the surgical procedure or cause adverse events.