Extradural analgesia with clonidine and fentanyl compared with 0.25% bupivacaine in the first stage of labour.

Abstract:

:Conventional extradural analgesia during labour with 0.25-0.375% bupivacaine may induce motor weakness and subjective sensory deficit, reducing maternal satisfaction. Even in a regimen for ambulatory extradural analgesia (0.1% bupivacaine-fentanyl 2 micrograms ml-1), a potential for proprioreception impairment exists, which may impair safe ambulation. We have combined fentanyl with clonidine for extradural analgesia in labour, and compared its effects with 0.25% bupivacaine, in a randomized, double-blind study. We studied 28 women requesting extradural analgesia for labour; they were allocated randomly to either group 1, who received clonidine 120 micrograms with fentanyl 50 micrograms, or group 2, who received bupivacaine 25 mg. Detailed clinical neurological examination was undertaken 30 min later. Pain was assessed subjectively using a 10-cm visual analogue scale (VAS). There were no significant differences in VAS between the groups at any time. Median onset of analgesia was longer in group 1 (24.3 (interquartile range 20-35) compared with 17.5 (15-25) min) (P < 0.05) and 79% of group 1 vs 86% of group 2 patients reported a high degree of satisfaction with extradural analgesia. Patients in group 2 had a much higher incidence of motor weakness (P < 0.01), impaired perception of pinprick (P < 0.01) and impaired distal joint proprioception (P < 0.05) than group 1. We conclude that clonidine 120 micrograms-fentanyl 50 micrograms provided comparable extradural analgesic efficacy as 0.25% bupivacaine for the first stage of labour. Furthermore, unwanted neurological effects were significantly less.

journal_name

Br J Anaesth

authors

Buggy DJ,MacDowell C

doi

10.1093/bja/76.2.319

subject

Has Abstract

pub_date

1996-02-01 00:00:00

pages

319-21

issue

2

eissn

0007-0912

issn

1471-6771

pii

S0007-0912(17)43913-4

journal_volume

76

pub_type

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