Williams Daryl Lindsay, Kave Benjamin, Bodas Charles, Roberts Megan, Ng Irene
Department of Anaesthesia and Pain Management, Royal Melbourne Hospital, Parkville, VIC, Australia.
University of Melbourne, Parkville, VIC, Australia.
Antimicrob Steward Healthc Epidemiol. 2024 Apr 29;4(1):e65. doi: 10.1017/ash.2024.50. eCollection 2024.
Many available facepiece filtering respirators contain ferromagnetic components, which may cause significant problems in the magnetic resonance imaging (MRI) environment. We conducted a randomized crossover trial to assess the effectiveness, usability, and comfort of 3 types of respirators, judged to be "conditionally MRI safe" with an aluminum nosepiece (Halyard 46727 duckbill-type respirators and Care Essentials MSK-002 bifold cup-type respirators) or "MRI safe" completely metal free (Eagle AG2200 semirigid cup-type respirators).
We recruited 120 participants to undergo a quantitative fit test (QNFT) on each of the 3 respirators in a randomized order. Participants then completed a usability and comfort assessment of each respirator.
There were significant differences in the QNFT pass rates (51% for Halyard 46727, 73% for Care Essentials MSK-002, and 86% for Eagle AG2200, < .001). The first-time fit test pass rate and overall fit factor were significantly higher for Eagle AG2200 compared with the other 2 respirators. Eagle AG2200 scored the lowest ratings in the ease of use and overall comfort. There were no significant differences in other modalities, including the seal rating, breathability, firmness, and overall assessment.
Our study supports the utility of the Eagle AG2200 and Care Essentials MSK-002 respirators for healthcare professionals working in an MRI environment, based on their high QNFT pass rates and reasonably good overall usability and comfort scores. Eagle AG2200 is unique because of its metal-free construction. However, its comparatively lower usability and comfort ratings raise questions about practicality, which may be improved by greater user training.
许多现有的面罩式过滤呼吸器含有铁磁成分，这在磁共振成像（MRI）环境中可能会引发重大问题。我们进行了一项随机交叉试验，以评估3种类型呼吸器的有效性、可用性和舒适性，这3种呼吸器被判定为“有条件MRI安全”（带铝制鼻架，即Halyard 46727鸭嘴型呼吸器和Care Essentials MSK - 002双折杯型呼吸器）或“MRI安全”（完全无金属，即Eagle AG2200半刚性杯型呼吸器）。
我们招募了120名参与者，以随机顺序对这3种呼吸器分别进行定量适合性测试（QNFT）。参与者随后完成了对每种呼吸器的可用性和舒适性评估。
QNFT通过率存在显著差异（Halyard 46727为51%，Care Essentials MSK - 002为73%，Eagle AG2200为86%，P <.001）。与其他2种呼吸器相比，Eagle AG2200的首次适合性测试通过率和整体适合因数显著更高。Eagle AG2200在易用性和整体舒适性方面得分最低。在其他方面没有显著差异，包括密封等级、透气性、牢固性和整体评估。
我们的研究支持Eagle AG2200和Care Essentials MSK - 002呼吸器对在MRI环境中工作的医护人员有用，基于它们较高的QNFT通过率以及合理良好的整体可用性和舒适性评分。Eagle AG2200因其无金属结构而独特。然而，其相对较低的可用性和舒适性评分引发了关于实用性的问题，这可能通过更多的用户培训得到改善。
