JAHA:急诊暂时性和轻微神经系统症状患者接受高级神经影像学检查的成本效益

2021-06-01 MedSci原创 MedSci原创

短暂性或轻微神经系统事件患者进行准确诊断可能具有挑战性。最近的研究表明,高级神经影像学检查可以提高短暂性或轻微神经系统症状的低风险患者诊断准确性,但具有成本效益的急诊科诊断评估策略仍未明确。

短暂性或轻微神经系统事件患者进行准确诊断可能具有挑战性。最近的研究表明,高级神经影像学检查可以提高短暂性或轻微神经系统症状的低风险患者诊断准确性,但具有成本效益的急诊科诊断评估策略仍未明确。

近日,血管疾病领域权威杂志JAHA上发表了一篇研究文章,研究人员构建了一个决策分析模型来评估两种诊断评估策略对于具有低风险的暂时性或轻微神经系统症状患者的诊断效能:(1) 对每位患者进行高级神经影像学检查(脑部磁共振成像和头颈部磁共振血管造影)或 (2) 现有急诊科标准临床评估和基础神经影像学检查。

该研究的主要概率变量为:发生真正缺血事件的患者比例、策略的特异性和敏感性以及卒中复发率。研究人员纳入了直接医疗费用进行分析,并计算了增量成本效益比,且进行了敏感性分析。研究人员评估了各种诊断检查参数。如果增量成本效益比低于支付意愿,则符合成本效益标准。研究人员将支付意愿定义为每质量调整生命年为10万美元。

增量成本效益图

经过初步和敏感性分析发现,高级神经影像学检查策略比急诊科护理标准更具成本效益。高级神经影像学检查策略的成本效益略低于标准检查策略,但标准检查策略的成本更高。高级神经影像学检查策略作为潜在优势诊断方法特异性>92%,敏感性>70% ,并且成本低于或等于标准检查策略的成本。

由此可见,对短暂性或轻微的神经系统症状低风险急诊患者进行高级神经影像学检查是更具成本效益的策略

原始出处:

Ava L. Liberman.et al.Cost‐Effectiveness of Advanced Neuroimaging for Transient and Minor Neurological Events in the Emergency Department.J AM HEART ASSOC.2021.https://www.ahajournals.org/doi/10.1161/JAHA.120.019001

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