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. 2016 Jul-Aug;32(4):978-82.
doi: 10.12669/pjms.324.9823.

Advantages of caudal block over intrarectal local anesthesia plus periprostatic nerve block for transrectal ultrasound guided prostate biopsy

Na Wang  1 , Yaowen Fu  2 , Haichun Ma  3 , Jinguo Wang  4 , Yang Gao  5
Affiliations

Advantages of caudal block over intrarectal local anesthesia plus periprostatic nerve block for transrectal ultrasound guided prostate biopsy

Na Wang et al. Pak J Med Sci. 2016 Jul-Aug.

Abstract

Objective: To compare caudal block with intrarectal local anesthesia plus periprostatic nerve block for transrectal ultrasound guided prostate biopsy.

Methods: One hundred and ninety patients scheduled for transrectal ultrasound guided prostate biopsy were randomized equally into Group-A who received caudal block (20 ml 1.2% lidocaine) and Group-B who received intrarectal local anesthesia (0.3% oxybuprocaine cream) plus periprostatic nerve block (10 ml 1% lidocaine plus 0.5% ropivacaine) before biopsy. During and after the procedure, the patients rated the level of pain/discomfort at various time points. Complications during the whole study period and the patient overall satisfaction were also evaluated.

Results: More pain and discomfort was detected during periprostatic nerve block than during caudal block. Pain and discomfort was significantly lower during prostate biopsy and during the manipulation of the probe in the rectum in Group-A than in Group-B. No significant differences were detected in the pain intensity after biopsy and side effects between the two groups.

Conclusions: Caudal block provides better anesthesia than periprostatic nerve block plus intrarectal local anesthesia for TRUS guided prostate biopsy without an increase of side effects.

Keywords: Biopsy; Caudal block; Periprostatic nerve block; Prostate; Transrectal; Ultrasound.

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Conflict of interest statement

Declaration of interest: The authors have no financial conflicts of interest

Figures

Fig.1
Fig.1
Box plots of VAS scores at various time points. Results are expressed in median. The top and bottom of each box indicate 75th and 25th percentiles and the error bars minimum and maximum values. Abbreviations: VAS, visual analogue scale; T1, during caudal block or periprostatic nerve block; T2, during introduction and presence of the probe in the rectum; T3, during biopsy procedure; T4, 30 minutes after the procedure and T5, a day after the procedure; Group-A, the caudal block group; Group-B, The intrarectal local anesthesia and periprostatic nerve block group. * indicates P<0.05, *** indicates P<0.001.
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