Study | Protocol | Number of patients | Pain score at prostate biopsy | p value | Conclusion | ||
---|---|---|---|---|---|---|---|
A | B | A | B | ||||
Na Wang et al. [13] | CBα | PPNBβ + IRLAδ | 190 (95 each) | 1.4 ± 1.3 | 1.9 ± 1.6 | 0.01 | CB better |
Horinaga et al. [9] | CBϕ | PPNBϕ | 100 (50 each) | 2.1 ± 1.9 | 1.1 ± 1.3 | 0.01 | PPNB better |
Urabe et al. [10] | CBϕ + IRLAε | PPNBϕ + IRLAε | 532 (266 each) | 3.0 ± 2.6 | 2.9 ± 2.5 | 0.56 | No difference |
Obi et al. [12] | CBλ (saddle) | PPNBϕ (digit guided) | 75 (25 each—added a 3rd group with no analgesia) | 0.7 ± 1.6 | 4.6 ± 2.3 | 0.00 | CB better |
Our study | CBμ | PPNBσ | 80 (40 each) | 3.1 ± 2.6 | 2.8 ± 2.7 | 0.40 | No difference |