Low-dose methoxyflurane provides superior pain relief in trauma patients
Published on 21 July 2022
https://hospitalpharmacyeurope.com/...ides-superior-pain-relief-in-trauma-patients/
Evaluation of the effectiveness and costs of inhaled methoxyflurane versus usual analgesia for prehospital injury and trauma: non-randomised clinical study
Published: 07 July 2022
https://bmcemergmed.biomedcentral.com/articles/10.1186/s12873-022-00664-y
"Results
Overall, 96 trained paramedics and technicians from the East Midlands Ambulance Service NHS Trust (EMAS) prepared 510 doses of methoxyflurane for administration to a total of 483 patients. Comparison data extracted from the EMAS database of UAP episodes involved: 753 patients using Entonox®, 802 patients using intravenous morphine, and 278 patients using intravenous paracetamol. Modelling results included demonstration of faster pain relief with inhaled methoxyflurane (all p-values < 0.001). Methoxyflurane’s time to achieve maximum pain relief was estimated to be significantly shorter: 26.4 min (95%CI 25.0–27.8) versus Entonox® 44.4 min (95%CI 39.5–49.3); 26.5 min (95%CI 25.0–27.9) versus intravenous morphine 41.8 min (95%CI 38.9–44.7); 26.5 min (95%CI 25.1–28.0) versus intravenous paracetamol 40.8 (95%CI 34.7–46.9). Scenario analyses showed that durations spent in severe pain were significantly less for methoxyflurane. Costing scenarios showed the added benefits of methoxyflurane were achieved at higher cost, eg versus Entonox® the additional cost per treated patient was estimated to be £12.30.
Conclusion
When administered to adults with moderate or severe pain due to trauma inhaled methoxyflurane reduced pain more rapidly and to a greater extent than Entonox® and parenteral analgesics. Inclusion of inhaled methoxyflurane to the suite of prehospital analgesics provides a clinically useful addition, but one that is costlier per treated patient."
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