Open AccessDynamicity of J waves during coronary intervention and angiography in a patient with non‐Q inferior myocardial infarction
Author(s) -
Kitazawa Hitoshi,
Matsushita Hirooki,
Takarada Ken,
Oguro Takeo,
Satoh Masahito,
Aizawa Yoshifusa
Publication year - 2013
Publication title -
journal of arrhythmia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.463
H-Index - 21
eISSN - 1883-2148
pISSN - 1880-4276
DOI - 10.1016/j.joa.2013.01.012
Subject(s) - medicine , cardiology , t wave , myocardial infarction , ischemia , percutaneous coronary intervention , myocardial ischemia , artery , coronary angiography , revascularization , abnormality , st segment , electrocardiography , psychiatry
Slurs or notches at the terminal portion of the QRS complexes are called J waves, which may be associated with myocardial ischemia. We describe our experience with a case of a patient with acute inferior myocardial infarction in whom J waves were observed in the inferior leads with ST‐segment elevation. The coronary artery was completely occluded, and during percutaneous intervention, ST‐segment elevation was normalized first, followed by the disappearance of the J waves after full revascularization. On follow‐up coronary angiography (CAG), the J waves in the inferior leads reappeared during the right CAG. The J waves were associated with an alteration of the electrical axis. J waves developing in association with myocardial ischemia seemed to be more sensitive to ischemia and might represent a depolarization abnormality.