A randomized double-blind study was undertaken using 0.5 per cent bupi
vacaine ilioinguinal field block and oral papaveretum-aspirin tablets
to assess pain relief after hernia surgery. A consecutive series of 20
0 men undergoing repair of a unilateral inguinal hernia underwent rand
om allocation into one of the four groups to receive: bupivacaine and
papaveretum-aspirin (group 1), bupivacaine and oral placebo (group 2),
saline and papaveretum-aspirin (group 3), or saline and oral placebo
(group 4). Patients were prescribed postoperative opiates to be given
on demand. Pain levels and mobility were A assessed at 6 and 24 h afte
r operation. Patients in group 1 reported significantly less pain, req
uired less additional opiates and had better mobility than those in gr
oup 4 (pain score P<0.001 at 6 h and P=0.002 at 24 h) and group 3 (P=0
.002 for pain and mobility scores at 6 h). Bupivacaine alone provided
good immediate postoperative pain relief (P=0.002 group 2 versus group
4 at 6 h). The combination of bupivacaine and papaveretum-aspirin pro
vided the best results and is suitable for day-case postoperative anal
gesia.