Backgroud
Patient-controlled analgesia(PCA) with intravenous an opioid has been suggested as a effective method of postoperative pain relief. There are several randomized controlled trials (RCTs) of comparison of oxycodone and fentanyl for IV-PCA in surgical patients. The purpose of this study was to performed a meta-analysis to compare the effect of intravenous oxycodone and fentanyl on post-operative pain in sugical patients from collected current data.
Methods
The RCTs of oxycodone versus fentanyl for IV-PCA were gathered from PubMed, Embase, Cochrane library, CNKI and VIP data. After data extraction and quality assessment of the included RCTs, the RevMan 5.3 software was applied for meta-analysis of numerical rating scale (NRS) scores, accumulated IV-PCA consumption of oxycodone and fentanyl, patient satisfaction, postoperative nausea and vomiting (PONV), and other adverse events (AEs).
Results
Results reported from eight RCTs involving 600 patients are included in the meta-analysis. The NRS score at rest and upon movement of group oxycodone was significantly lower than that of group fentanyl (WMD= -3.85, 95% CI -4.93~-2.76, P<0.00001; WMD= -4.31, 95% CI -5.79~-2.84, P<0.00001); however, the incidence of PONV and dizziness was significantly higher in group oxycodone than in group fentanyl (OR = 2.41, 95% CI 1.60~3.63, P < 0.0001; OR=3.69, 95% CI 2.17~6.26, P<0.00001). Accumulated IV-PCA consumption in group oxycodone was less than in group fentanyl overall the 48 hours postoperatively (WMD= -12.11, 95% CI -18.42~-5.80, P = 0.0002). There was no significant difference in patient satisfaction between oxycodone and fentanyl (OR=0.73, 95% CI 0.11~5.04, P= 0.75).
Conclusion
According to the evidence, this meta-analysis suggest that oxycodone IV-PCA is superior to fentanyl in postoperative pain relief, whereas the higher incidence of PONV and dizziness was accompanied with oxycodone. Further large-scale and well-designed studies are needed to summarize and analyse the data to draw a more convincing conclusion.