Sedoanalgesia with midazolam and fentanyl citrate controls probe pain during prostate biopsy by transrectal ultrasound

A Comparison of Prilocaine vs Prilocaine + Bupivacaine in Periprostatic Block in Ambulatory Prostate Biopsies: A Single-Blind Randomized Controlled Study

Objective

The purpose of this study was to evaluate the analgesic effect of a prilocaine + bupivacaine combination in patients undergoing periprostatic nerve block (PNB) by comparing its effects with those of prilocaine alone.

Design

Single center, single-blind, prospective descriptive study.

Subjects

Four hundred patients with transrectal prostate biopsy pain.

Methods

The patients in this prospective, randomized controlled study were divided into two groups. The first group received prilocaine during PNB (Group 1), whereas the second received a prilocaine + bupivacaine combination (Group 2).

Results

The mean visual analog scale (VAS) scores immediately after biopsy were 2.52 ± 0.7 and 2.53 ± 0.9, respectively (P = 0.35). VAS values were significantly lower in Group 2 at one and six hours following the procedure. The most painful part of the biopsy according to many patients was the probe insertion.

Conclusions

The prilocaine + bupivacaine combination is an effective analgesic method during prostate biopsies and for one and six hours after prostate biopsy.

Effect of patient position on pain scales during transrectal ultrasound-guided prostate biopsy

Purpose

Transrectal ultrasound (TRUS)-guided prostate biopsy is the most useful technique for the diagnosis of prostate cancer; however, many patients describe the procedure as uncomfortable and painful. We investigated the effect of the patient's position on pain scales during TRUS-guided prostate biopsy.

Materials and Methods

Between July 2012 and June 2013, a total of 128 consecutive patients who underwent TRUS-guided prostate biopsy were included in this study. Seventy patients underwent the procedure in the lithotomy position performed by a urologist and the other patients (n=58) underwent the procedure in the left lateral decubitus (LLD) position performed by a radiologist. Pain was assessed by using visual analogue scale (VAS) scores from 0 to 10. Using a linear regression model, we analyzed the correlation between pain scale score and clinical variables with a focus on patient position.

Results

No significant differences related to age, body mass index, prostate volume, prostate-specific antigen (PSA), hematuria, pyuria, International Prostate Symptom Score, or the cancer detection rate were observed between the lithotomy and the LLD groups. In the correlation analysis, VAS score showed a significant correlation with diabetes mellitus, PSA level, and lithotomy position (p<0.05). In the multiple linear regression model, VAS score showed a significant correlation with lithotomy position (β=-0.772, p=0.003) and diabetes mellitus (β=-0.803, p=0.033).

Conclusions

We suggest that the lithotomy position may be the proper way to reduce pain during TRUS-guided prostate biopsy.

What is the ideal core number for ultrasound-guided prostate biopsy?

Purpose

We evaluated the utility of 10-, 12-, and 16-core prostate biopsies for detecting prostate cancer (PCa) and correlated the results with prostate-specific antigen (PSA) levels, prostate volumes, Gleason scores, and detection rates of high-grade prostatic intraepithelial neoplasia (HGPIN) and atypical small acinar proliferation (ASAP).

Materials and Methods

A prospective controlled study was conducted in 354 consecutive patients with various indications for prostate biopsy. Sixteen-core biopsy specimens were obtained from 351 patients. The first 10-core biopsy specimens were obtained bilaterally from the base, middle third, apex, medial, and latero-lateral regions. Afterward, six additional punctures were performed bilaterally in the areas more lateral to the base, middle third, and apex regions, yielding a total of 16-core biopsy specimens. The detection rate of carcinoma in the initial 10-core specimens was compared with that in the 12- and 16-core specimens.

Results

No significant differences in the cancer detection rate were found between the three biopsy protocols. PCa was found in 102 patients (29.06%) using the 10-core protocol, in 99 patients (28.21%) using the 12-core protocol, and in 107 patients (30.48%) using the 16-core protocol (p=0.798). The 10-, 12-, and 16-core protocols were compared with stratified PSA levels, stratified prostate volumes, Gleason scores, and detection rates of HGPIN and ASAP; no significant differences were found.

Conclusions

Cancer positivity with the 10-core protocol was not significantly different from that with the 12- and 16-core protocols, which indicates that the 10-core protocol is acceptable for performing a first biopsy.