Is J wave a Delayed Depolarization or an Early Repolarization?
نویسندگان
چکیده
منابع مشابه
J-wave syndromes caused by repolarization or depolarization mechanisms a debated issue among experimental and clinical electrophysiologists.
p n u d h e m d e d p d m a c I t r w e F p g p p a e he J-wave deflection occurring at the QRS-ST junction also known as Osborn waves) was first described in 1953 nd is seen in many conditions such as hypothermia; ypercalcemia; brain injury; vasospastic angina; acute ischmia, especially in true posterior myocardial infarction with cclusion of the left circumflex coronary artery; Brugada yndrom...
متن کاملJ-wave syndromes: Brugada and early repolarization syndromes.
A prominent J wave is encountered in a number of life-threatening cardiac arrhythmia syndromes, including the Brugada syndrome and early repolarization syndromes. Brugada syndrome and early repolarization syndromes differ with respect to the magnitude and lead location of abnormal J waves and are thought to represent a continuous spectrum of phenotypic expression termed J-wave syndromes. Despit...
متن کاملEarly repolarization: innocent or dangerous?
Electrocardiographic (ECG) findings of wide QRS complexes in right precordial leads with saddle ST elevation in patients with polyarthritis, palpitations and family history of syncope urged us to review early repolarization syndrome (ERS). ERS is commonly seen in young men. The main ECG features are as follows: wide spread concave ST-segment elevation, more in the precordial leads (usually V2-V...
متن کاملRationale for the use of the terms J-wave syndromes and early repolarization.
q a t r e c i F ( d g a e d a t f s f a t d t m The J-wave is a deflection immediately following the QRS complex of the surface electrocardiogram (ECG) that has been linked to the development of a pronounced dispersion of repolarization within the ventricular myocardium leading to the development of cardiac arrhythmias. When partially buried in the R-wave, the J-wave appears as a J-point elevat...
متن کاملLong-term prognosis of early repolarization with J-wave and QRS slur patterns on the resting electrocardiogram: a cohort study.
BACKGROUND The prognostic value of early repolarization with J waves and QRS slurs remains controversial. Although these findings are more prevalent in patients with idiopathic ventricular fibrillation, their ability to predict cardiovascular death has varied across studies. OBJECTIVE To test the hypothesis that J waves and QRS slurs on electrocardiograms (ECGs) are associated with increased ...
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ژورنال
عنوان ژورنال: Japanese Journal of Electrocardiology
سال: 2017
ISSN: 0285-1660,1884-2437
DOI: 10.5105/jse.37.111