缺血性J波是近年提出的一种心肌缺血超急性期的心电图表现,可在多种临床情况下出现,提示恶性心律失常和心脏性猝死的倾向。及时识别和诊断缺血性J波有助于及早诊断和干预严重的心肌缺血、降低心脏性猝死的发生率。本文回顾性分析了近五年的国内外相关文献,全面总结和深入探讨了多种临床状况(心肌梗死超急性期、变异性心绞痛等)下出现的缺血性J波的特点及其临床意义。 Ischemic J wave is a myocardial ischemia in recent years proposed a hyperesthera phase electrocardiogram, can appear in a variety of clinical situations, suggesting that malignant arrhythmias and sudden cardiac death tendencies. Timely identification and diagnosis of ischemic J wave help early diagnosis and intervention of severe myocardial ischemia, reduce the incidence of sudden cardiac death. This article retrospectively analyzed the relevant literatures at home and abroad in the past five years and summarized and characterized the characteristics and clinical significance of ischemic J waves in a variety of clinical conditions (acute myocardial infarction, variant angina, etc.) .