缺血性J波的特征及临床意义

Characteristics and clinical significance of ischemic J wave

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 Jwave is brought forward in recent years as an electrocardiographic phenom-enon of myocardial ischemia in the hyperacute phase. It may appear under various clinical condi-tions and indicates tendencies of malignant arrhythmia and sudden cardiac death. Timely identifica-tion and diagnosis of ischemic Jwave helps to diagnose and interfere in serious myocardial ischemia, and to reduce the incidence of sudden cardiac death. This paper retrospectively analyzes the related literature at home and abroad during the last five years, and roundly summarizes and further discus-ses the characteristics and clinical significance of ischemic Jwave which appears under multiple clinical circumstances（myocardial ischemia in the hyperacute phase, variant angina, etc.）.