摘要
Objective： To assess the effect of transrectal ultrasound guided prostatic nerve blockade on the discomfort associated with systematic biopsy of the prostate. Methods： 73 patients receiving systematic 13 cores biopsy of the prostate were randomized into two groups. Group A（37 cases） received an injection of 5 ml 1% lidocaine into the prostatic neurovascular bundles on each side at the base of the prostate under ultrasound guidance and group B（36 cases） received 5 ml saline injection （0.9% sodium chloride） at the same site. Pain during biopsy was assessed by using a 10-point linear visual analog score （VAS） immediately after the biopsy. Results： The mean pain scores during transrectal prostate biopsy were significantly lower in group A than group B（1.1±0.6 versus 5.9±3.1, t=4.81, P〈0.01）. During this study no patient in either group had any adverse effect from the injection. Conclusion： Transcrectal ultrasound guided prostatic nerve blockade is a safe and efficacious method for providing satisfactory anesthesia in transrectal prostate biopsy. We recommend its routine administration in all patients during this procedure.
Objective： To assess the effect of transrectal ultrasound guided prostatic nerve blockade on the discomfort associated with systematic biopsy of the prostate. Methods： 73 patients receiving systematic 13 cores biopsy of the prostate were randomized into two groups. Group A（37 cases） received an injection of 5 ml 1% lidocaine into the prostatic neurovascular bundles on each side at the base of the prostate under ultrasound guidance and group B（36 cases） received 5 ml saline injection （0.9% sodium chloride） at the same site. Pain during biopsy was assessed by using a 10-point linear visual analog score （VAS） immediately after the biopsy. Results： The mean pain scores during transrectal prostate biopsy were significantly lower in group A than group B（1.1±0.6 versus 5.9±3.1, t=4.81, P〈0.01）. During this study no patient in either group had any adverse effect from the injection. Conclusion： Transcrectal ultrasound guided prostatic nerve blockade is a safe and efficacious method for providing satisfactory anesthesia in transrectal prostate biopsy. We recommend its routine administration in all patients during this procedure.
