کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2757522 1567513 2015 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effect-site concentration of remifentanil during patient-controlled analgesia in labour
ترجمه فارسی عنوان
محدوده اثر محلول رمی فنتانیل در زمان بیهوشی کنترل شده توسط بیمار در کار
کلمات کلیدی
رمی فنتانیل، درد کار، بیهوشی کنترل شده توسط بیمار، اثر تمرکز سایت، مدل سازی فارماکوکینتیک
موضوعات مرتبط
علوم پزشکی و سلامت پزشکی و دندانپزشکی بیهوشی و پزشکی درد
چکیده انگلیسی


• Intravenous remifentanil was used in patient-controlled analgesia for labour.
• Hypothetical effect-site remifentanil concentration (Minto’s model) was examined.
• Higher value before contraction (residual value) resulted in lower pain score.
• Monitoring this parameter may be useful in future clinical practice.
• Confirmation with a pharmacokinetic model optimized for pregnant patients is required.

BackgroundIntravenous remifentanil has been described for patient-controlled analgesia in labour. Recently, the application of target-controlled infusion pumps with Minto’s pharmacokinetic/pharmacodynamic model has been reported. Hypothetical effect-site remifentanil concentration during patient-controlled analgesia for labour has yet to be examined. The aim of this concept study was to explore characteristics of this parameter.MethodsWe performed a historical cohort study based on our previous randomised cross-over clinical trial and analysed hypothetical effect-site remifentanil concentration. Values at spontaneous vaginal delivery and Apgar scores were tested for correlation. The association between pain score and the corresponding effect-site remifentanil concentration before and after bolus administration, and their relative difference, was examined with a linear mixed-effects model, adjusted for other variables.ResultsA series of 23 parturients with uncomplicated singleton pregnancies were included. On average, effect-site remifentanil concentration was highest during the third quarter throughout our recordings (5.5 ng/mL; maximum 15.8 ng/mL). The mean (median) {IQR} [range] at spontaneous vaginal delivery (n=14) was 2.52 (1.32) {0.95–4.28} [0.65–6.88] ng/mL, all Apgar scores were >7, and no correlation was confirmed. A negative association between effect-site remifentanil concentration before bolus administration and pain score (scale 0–100) was observed (−3.9, 95% CI −5.16 to −2.61, P <0.01).ConclusionsThe residual value of hypothetical effect-site remifentanil concentration before uterine contraction, at the beginning of bolus administration, predicted lower pain scores. Monitoring effect-site remifentanil concentration may be potentially useful when remifentanil is administered for labour analgesia. However, our results need to be confirmed with a pharmacokinetic model optimized for pregnant patients.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Obstetric Anesthesia - Volume 24, Issue 3, August 2015, Pages 230–236
نویسندگان
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