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연세대학교 의과대학 Yonsei Medical Journal Yonsei Medical Journal 제55권 제3호
발행연도
2014.1
수록면
800 - 806 (7page)

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Purpose: This analysis was done to investigate the optimal regimen for fentanyl-based intravenous patient-controlled analgesia (IV-PCA) by finding a safe and effectivebackground infusion rate and assessing the effect of adding adjuvant drugs to the PCA regimen. Materials and Methods: Background infusion rate of fentanyl,type of adjuvant analgesic and/or antiemetic that was added to the IV-PCA, and patients that required rescue analgesics and/or antiemetics were retrospectivelyreviewed in 1827 patients who underwent laparoscopic abdominal surgery at a single tertiary hospital. Results: Upon multivariate analysis, lower background infusionrates, younger age, and IV-PCA without adjuvant analgesics were identified as independent risk factors of rescue analgesic administration. Higher background infusion rates, female gender, and IV-PCA without additional 5HT3 receptor blockers were identified as risk factors of rescue antiemetics administration. A background infusion rate of 0.38 μg/kg/hr [area under the curve (AUC) 0.638] or lower required rescue analgesics in general, whereas, addition of adjuvant analgesicsdecreased the rate to 0.37 μg/kg/hr (AUC 0.712) or lower. A background infusionrate of 0.36 μg/kg/hr (AUC 0.638) or higher was found to require rescue antiemeticsin general, whereas, mixing antiemetics with IV-PCA increased the rate to 0.37 μg/kg/hr (AUC 0.651) or higher. Conclusion: Background infusion rates of fentanyl between 0.12 and 0.67 μg/kg/hr may safely be used without any serious side effects for IV-PCA. In order to approach the most reasonable background infusionrate for effective analgesia without increasing postoperative nausea and vomiting, adding an adjuvant analgesic and an antiemetic should always be considered.

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