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Treatment of Motionsickness in Prehospital Trauma Victims OxyarmTM Is More Effective Than a Venturi Mask

Treatment of Motionsickness in Prehospital Trauma Victims OxyarmTM Is More Effective Than a Venturi Mask

Anesthesiology Abstracts of Scientific Papers Annual Meeting ( ): Abstract No A-347

Background: Supplemental oxygen given in the PACU and on emergency transport reduces PONV and motion sickness. Unfortunately, patient's satisfaction is impaired by the discomfort of the convential face mask. OxyarmTM is a new oxygen delivery system without direct contact to the patient's face. We therefore tested the hypothesis that oxygen administration with oxyarmTM is more effective and better tolerated in treating motion sickness on emergency transport than a face mask. Methods: Forty victims of minor trauma were randomly assigned to either oxyarmTM (n=20) or face mask (n=20) for oxygen inhalation (8l/min) during transport. A paramedic measured vital signs before and after transport. Patients rated their levels of nausea, negative smell of the device, feeling of restriction by the device and satisfaction with their care on 100-mm-long visual analog scales. Results in the two groups were compared with Chi Square or unpaired, two-tailed t tests; data are presented as means +- SDs. Results: Before randomisation, patients did not differ significantly in morphometrics, demographics and SpO2 or in their scales of nausea. Oxygen saturation upon arrival at the hospital was comparable in both groups (oxyarmTM, 99 +- 1 vs. face mask, 99 +- 1%, P = 0.8). However, the patients using oxyarmTM had significantly less nausea (4.4 +- 2.1 vs. 27.5 +- 5 mm, P = 0.03) and vomiting (0 vs. 7 episodes, P < 0.01). The oxyarmTM group also had significantly lower scales for negative smell (4.5 +- 2 vs. 27.0 +- 13 mm, P < 0.01), restriction by the device (86 +- 12 vs. 94 +- 13 mm, P < 0.01), and greater overall satisfaction (4.2 +- 2.3 vs. 28.0 +- 9 mm, P < 0.01). Six patients removed the face mask on transport, none rejected oxyarmTM. Conclusion: Our results indicate that supplemental oxygen during hospital transport applicated by oxyarmTM is more effective in treatment of motion sickness than a face mask and increases patient's comfort and compliance significantly. We therefore can recommend the use of oxyarmTM in prehospital trauma care.

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