title: Comparison of single, end-holed and multi-orifice extradural catheters when used for continuous infusion of local anaesthetic during labour.
abstract: Single, end-holed and multi-orifice extradural catheters were compared in terms of efficacy and complications when used for infusion of 0.1% bupivacaine during labour. In this study of 364 patients there was no difference in unilateral block after an initial bolus dose (18 (11.5%) for single, end-holed and 16 (10.9%) for multi-orifice catheters). Unilateral block recurred with seven (4.0%) single, end-holed and with eight (4.8%) multi-orifice catheters. Unilateral blocks, arising for the first time during infusion of local anaesthetic, occurred significantly more frequently when single, end-holed catheters were used (29 (16.4%)) compared with multi-orifice catheters (14 (8.4%)) (P < 0.05).
authors.affiliation: Department of Anaesthetics, Royal Infirmary of Edinburgh.
authors.forename: M A
authors.initials: MA
authors.lastname: Dickson
authors.forename: C
authors.initials: C
authors.lastname: Moores
authors.forename: J H
authors.initials: JH
authors.lastname: McClure
mesh_terms: D015360:Analgesia, Epidural / Q000295:instrumentation*; D016362:Analgesia, Obstetrical / Q000295:instrumentation*; D000779:Anesthetics, Local / Q000008:administration & dosage* / Q000009:adverse effects / Q000493:pharmacokinetics; D002045:Bupivacaine / Q000008:administration & dosage* / Q000009:adverse effects / Q000493:pharmacokinetics; D002406:Catheterization, Peripheral / Q000295:instrumentation*; D004824:Epidural Space / Q000378:metabolism; D005260:Female; D006801:Humans; D007263:Infusions, Parenteral; D011247:Pregnancy
chemical_list: D000779:Anesthetics, Local; D002045:Bupivacaine