J Wave Syndrome-Early Repolarization or Delayed Depolarization?
نویسندگان
چکیده
منابع مشابه
J-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 کاملJ-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 کاملEarly repolarization syndrome- to be or not to be benign.
The early repolarization syndrome, particular electrocardiographic aspect defined as J point and concave ST segment elevation, interpreted by electrophysiologists as benign for over five decades, caused over the past three years many controversies. The trigger for controversy were the results of several, mostly retrospective, studies concluding that individuals with early repolarization syndrom...
متن کاملThe pathophysiological mechanism underlying Brugada syndrome: depolarization versus repolarization.
This Point/Counterpoint presents a scholarly debate of the mechanisms underlying the electrocardiographic and arrhythmic manifestations of Brugada syndrome (BrS), exploring in detail the available evidence in support of the repolarization vs. depolarization hypothesis.
متن کاملPathophysiological mechanisms of Brugada syndrome: depolarization disorder, repolarization disorder, or more?
After its recognition as a distinct clinical entity, Brugada syndrome is increasingly recognized worldwide as an important cause of sudden cardiac death. Brugada syndrome exhibits autosomal dominant inheritance with SCN5A, which encodes the cardiac sodium channel, as the only gene with a proven involvement in 20-30% of patients. Its signature feature is ST segment elevation in right precordial ...
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ژورنال
عنوان ژورنال: Journal of Arrhythmia
سال: 2011
ISSN: 1880-4276,1883-2148
DOI: 10.4020/jhrs.27.stl_1