Transrectal ultrasound guided prostate biopsy is performed with a periprostatic nerve block to the neurovascular bundle bilaterally. This does not reduce the pain due to probe insertion and manipulation prior to nerve blockage. Our study goal is to assess whether topical analgesia would reduce pain during the early stages of the procedure.
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Pain level before probe insertion
Timeframe: Before transrectal ultrasound probe insertion
Pain level at TRUS probe insertion
Timeframe: During transrectal ultrasound probe insertion into the rectum (defined as beginning of procedure)
Pain level during TRUS probe manipulation in the rectum
Timeframe: During transrectal ultrasound probe manipulation in the rectum (estimated at 0-2 minutes length)
Pain level during periprostatic nerve block
Timeframe: During periprostatic nerve block (rectal wall puncture with needle, estimated at 2-3 minutes after beginning of procedure)
Pain level during biopsy collection
Timeframe: During biopsy collection using an 18-gauge needle (estimated at 3-10 minutes from beginning of procedure)
Pain level at termination of procedure
Timeframe: At termination of procedure (total estimated length of procedure is 10 minutes).