Patients with major myocardial infarction treated with acute coronary artery opening (reperfusion) within the recommended time, proportion (%) - Target level ≥ 90

The indicator refers to the time delay between the first ECG and the start of reperfusion therapy in patients with major myocardial infarction , ST segment elevation myocardial infarction. The measure shows the proportion of patients treated within the target time, for PCI 90 minutes and for thrombolysis 30 minutes. Fast reperfusion therapy is an important success factor – the shorter the time to treatment, the greater the treatment benefit. International and national guidelines recommend PCI within 90 minutes or thrombolysis within 30 minutes of the first ECG where PCI is not possible. The indicator reflects the health care's actions, in that the time for the first ECG is the starting point. The total time between onset of symptoms and treatment depends on how the patient, relatives, medical advice and emergency services relate to chest pain and other symptoms of myocardial infarction, as well as on transport times. The indicator is taken from SWEDEHEART's annual report of the quality index for myocardial infarction care and is one of the national heart guidelines' indicators for follow-up. The National Board of Health and Welfare has set the target level at 90 per cent or higher.本指标针对的是大面积心肌梗死、ST段抬高型心肌梗死（ST segment elevation myocardial infarction）患者首次心电图（Electrocardiogram, ECG）检查至再灌注治疗启动之间的时间延迟情况。该指标统计了符合目标时间窗要求的患者占比：经皮冠状动脉介入治疗（Percutaneous Coronary Intervention, PCI）需在首次心电图检查后90分钟内完成，溶栓治疗（Thrombolysis）则需在首次心电图检查后30分钟内启动。快速再灌注治疗是保障诊疗效果的核心要素——治疗启动时间越短，患者的治疗获益越大。国际及各国临床指南均推荐：对于可开展经皮冠状动脉介入治疗的患者，应在首次心电图检查后90分钟内完成手术；若无法实施PCI，则应在首次心电图检查后30分钟内启动溶栓治疗。该指标以首次心电图检查时间作为计时起始点，可反映医疗体系的诊疗服务行为。从症状发作至治疗启动的总时长，受多方面因素影响：包括患者、家属对胸痛及其他心肌梗死症状的识别与就医行为、医疗咨询与急诊服务的响应效率，以及患者转运耗时。本指标源自瑞典心脏登记研究（SWEDEHEART）发布的《心肌梗死诊疗质量指标年度报告》，是国家心脏疾病临床指南中用于诊疗质量随访的核心指标之一。瑞典国家卫生与福利委员会已将该指标的达标阈值设定为90%及以上。