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Canadian Journal of Anesthesia, Vol 41, 568-571, Copyright © 1994 by Canadian Anesthesiologists' Society

ARTICLES

Repeat epidural analgesia and unilateral block

DE Withington and SK Weeks
Department of Anaesthesia, Royal Victoria Hospital, Montreal, Quebec.

The use of epidural analgesia has become so widespread in recent years that many women are now requesting repeat epidural analgesia for their second or subsequent labour. This study examines the incidence of problems at insertion and of inadequate block in 71 multiparae having second epidurals compared with 150 primiparae having their first epidural. Unilateral block occurred in 6.66% of primiparae and 18.3% of multiparae (P < 0.02). There was no association between difficulty of insertion of catheter, blood in needle/catheter or paraesthesia and unilateral blockade. Epidurals were inserted at a greater dilatation (P < 0.05) and there was a shorter time to delivery (P < 0.01) in the multiparous group. We conclude that unilateral block is thus more common in women receiving repeat epidurals.


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Copyright © 1994 by the Canadian Anesthesiologists' Society.