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Analgesic Efficacy and Safety of Spinal Oxycodone in Total Hip Arthroplasty: A Preliminary Study.
- Source :
-
Current medicinal chemistry [Curr Med Chem] 2022; Vol. 29 (21), pp. 3806-3814. - Publication Year :
- 2022
-
Abstract
- Aim: The aim of this study was to assess the analgesic efficacy and safety of 1 mg and 0.5 mg oxycodone administration in a spinal block procedure for a total hip arthroplasty (THA).<br />Patients and Methods: Forty-two THA patients aged 59-81 with American Society Anesthesiology (ASA) II-III were included. All patients received anesthesia using spinal blockade, with bupivacaine 0.5% spinal heavy 2.5 ml, with 0.5 ml oxycodone hydrochloride 1.0 mg (group A; n = 28) or 0.5 mg (group B; n = 14). During surgery, each patient was sedated with 2-4 mg/kg/h intravenous propofol infusion. They received 100 mg intravenous ketoprofen at the end of the surgery at 8 pm and 8 am, with recommended doses every 12 h thereafter. Subcutaneous morphine 5 mg was used as a rescue analgesic, and the time to morphine use was recorded. After surgery, pain intensity (at the moment of patient report) was assessed using an 11-point numerical rating scale (NRS). The incidence of adverse effects was monitored. Blood samples were taken for assays of serum oxycodone, noroxycodone and bupivacaine levels.<br />Results: The time to rescue analgesia was 9.6 ± 5.6 h in group A and 7.3 ± 1.9 h in group B, and it did not differ between patient groups (P = 0.179). The mean NRS pain score was 4.5 in group A and 4.2 in group B. Three group A patients had detectable oxycodone levels: two < 7.1 ng/ml and in 1 spinal block induced anesthesia was unsuccessful and so he/she underwent general anesthesia (this patient was excluded from the analysis). Four group B patients had single values < 5 ng/ml. Noroxycodone levels were in all patients undetectable, and bupivacaine levels were 70-300 ng/ml. Regarding adverse effects, one patient had hypotension, one had bradycardia, and one had pruritus.<br />Conclusion: Oxycodone in spinal block prolongs analgesia period, does not cause serious adverse effects and seems to be safe and effective opioid for patients undergoing THA.<br /> (Copyright© Bentham Science Publishers; For any queries, please email at epub@benthamscience.net.)
Details
- Language :
- English
- ISSN :
- 1875-533X
- Volume :
- 29
- Issue :
- 21
- Database :
- MEDLINE
- Journal :
- Current medicinal chemistry
- Publication Type :
- Academic Journal
- Accession number :
- 35081884
- Full Text :
- https://doi.org/10.2174/0929867329666220126125256