期刊
CANADIAN JOURNAL OF ANAESTHESIA-JOURNAL CANADIEN D ANESTHESIE
卷 47, 期 2, 页码 113-119出版社
SPRINGER
DOI: 10.1007/BF03018845
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Purpose: To determine the analgesic efficacy of equipotent doses of PCA (patient-controlled analgesia) fentanyl and PCA alfentanil for labour pain. Methods: Twenty three, ASA I - II parturients between 32-42 wk gestational age in whom epidural analgesia was contraindicated were randomized to receive PCA fentanyl (Group F)or alfentanil (Group A). Plain numbered vials contained 21 mi fentanyl 50 mu g.ml(-1) or alfentanil 500 mu g.ml(-1). A one millilitre loading dose was administered, The PCA solution was prepared by diluting 10 mi study drug with 40 mi saline and the PCA pump was programmed to deliver a dose of 2 mi, delay of five minutes and a basal rate of 2 ml.hr(-1). Maternal measurements obtained were hourly drug dose, total dose, Visual Analog Pain Score (VAPS) q 30 min, sedation score q I hr and side effects. Neonates were assessed by 1,5, and 10-min Apgar scores, umbilical venous and arterial blood gases and neurobehavioural scores at four and 24 hr. Results: Mean VAPS from 7 - 10 un cervical dilatation were higher in Group A than in Group F; (85.7 +/- 13.9 vs 64.6 +/- 12.1; P < 0.01) There were no inter-group differences in VAPS from 1 - 3 cm, or from 4 - 6 cm dilatation, in maternal sedation scores or side effects, or in neonatal outcomes. Conclusion: In the doses prescribed in this study, PCA fentanyl was found to provide more effective analgesia in late first stage labour than PCA alfentanil.
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