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心性猝死至今仍是医学界面临的最大挑战。据统计，致死性心律失常患者若能得到即刻有效的救治，其中1／3患者有希望获得生存。故临床亟需一种能对严重性心电改变如心肌缺血、坏死、恶性心律失常及时作出诊断，并指导现场救治的医疗仪器。CardGuard（英文原意为磁卡哨兵）心电监
Sudden cardiac death is still the biggest challenge facing the medical community. According to statistics, if patients with fatal arrhythmia can receive immediate and effective treatment, one-third of patients have hope to survive. Therefore, there is an urgent need for a clinical instrument that can diagnose acute electrocardiographic changes such as myocardial ischemia, necrosis, and malignant arrhythmias in a timely manner and instructs on-site treatment. CardGuard (English for the magnetic card sentry) ECG monitor