Hanna H J, Emmanuel J, Naim S, Umasunthar T, Boyle R J
Department of Paediatric Allergy, Imperial College London, London, UK.
Clin Exp Allergy. 2016 Dec;46(12):1588-1595. doi: 10.1111/cea.12846.
Fatal food anaphylaxis is rare, but a major concern for people with food allergy and their carers. We evaluated whether community healthcare professionals accurately estimate risk of fatal anaphylaxis for food allergic children, and whether accurate risk estimation is related to competence in recognizing and managing anaphylaxis.
We enrolled 90 community healthcare professionals in a cross-sectional survey - 30 primary care nurses, 30 school first aiders, 30 community pharmacists. Participant risk estimates for fatal and non-fatal anaphylaxis, and all-cause fatalities, were measured using a risk ladder. Participant anaphylaxis knowledge was assessed by questionnaire, and practical skills using a simulated anaphylaxis scenario.
In all three groups, participants significantly overestimated the risk of fatal anaphylaxis for food allergic children, by a mean factor of 13.5-fold (95% CI 5.0, 31.6), but did not overestimate non-fatal anaphylaxis risk or all-cause fatality risk. We found no evidence of a relationship between successful adrenaline administration and risk estimation.
In conclusion, we have found evidence that community pharmacists, school first aiders and primary care nurses in the UK systematically overestimate the risk of fatal anaphylaxis for a food allergic child. This overestimation may result in increased patient and carer anxiety. Community practitioners who manage childhood food allergy and anaphylaxis need to be educated about the level of risk for fatal anaphylaxis in such children.
致命性食物过敏反应虽罕见,但却是食物过敏患者及其护理人员主要担忧的问题。我们评估了社区医疗专业人员是否能准确估计食物过敏儿童发生致命性过敏反应的风险,以及准确的风险估计是否与识别和处理过敏反应的能力相关。
我们招募了90名社区医疗专业人员参与一项横断面调查,其中包括30名初级护理护士、30名校医急救员、30名社区药剂师。使用风险阶梯来衡量参与者对致命性和非致命性过敏反应以及全因死亡的风险估计。通过问卷调查评估参与者的过敏反应知识,并使用模拟过敏反应场景评估其实践技能。
在所有三组中,参与者显著高估了食物过敏儿童发生致命性过敏反应的风险,平均高估了13.5倍(95%可信区间5.0,31.6),但未高估非致命性过敏反应风险或全因死亡风险。我们没有发现成功注射肾上腺素与风险估计之间存在关联的证据。
总之,我们发现有证据表明,英国的社区药剂师、校医急救员和初级护理护士系统性地高估了食物过敏儿童发生致命性过敏反应的风险。这种高估可能会导致患者及其护理人员焦虑加剧。需要对管理儿童食物过敏和过敏反应的社区从业者进行此类儿童致命性过敏反应风险水平的教育。