• Andreas P Berger, Ferdinand Frauscher, Ethan J Halpern, Robert Spranger, Hannes Steiner, Georg Bartsch, and Wolfgang Horninger.
• Department of Urology, University of Innsbruck, Innsbruck, Austria.
• Urology. 2003 Mar 1;61(3):585-8.

ObjectivesTo evaluate the effect of periprostatic infiltration with local anesthesia on the level of discomfort associated with transrectal ultrasound-guided needle biopsy of the prostate. Transrectal ultrasound-guided needle biopsy of the prostate is the standard procedure to diagnose prostate cancer.MethodsA prospective, randomized, double-blind study was performed on 100 men referred for biopsy of the prostate. Fifty subjects were randomized to periprostatic injection of 10 mL of 2% lidocaine solution without epinephrine, and 50 were randomized to injection of placebo (10 mL of 0.9% NaCl). Each subject completed three 10-point visual analog scales for pain after a series of 15 needle biopsies. Pain was rated during the biopsy, diagnostic investigation, and injection of lidocaine.ResultsPatients who received local anesthesia had significantly lower visual analog scale scores compared with the group without lidocaine during the biopsy (mean score 0.76 versus 3.62, P <0.001) and diagnostic examination (mean score 1.08 versus 1.86, P = 0.025). Lidocaine injection caused no adverse effects.ConclusionsPeriprostatic injection of lidocaine represents a simple and safe procedure that significantly reduces discomfort during probe manipulation and biopsy. We recommend this procedure in men undergoing transrectal ultrasound-guided prostate biopsy.

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