کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
2969037 | 1178892 | 2008 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Early repolarization associated with accelerated atrioventricular conduction (short PR interval) and incomplete right bundle branch block: postulated mechanisms
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کلمات کلیدی
موضوعات مرتبط
علوم پزشکی و سلامت
پزشکی و دندانپزشکی
کاردیولوژی و پزشکی قلب و عروق
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چکیده انگلیسی
A 36-year-old male patient, who was admitted with atypical chest pain and had normal physical examination and laboratory findings, including on an echocardiogram and a maximal exercise treadmill/thallium test, is described. His electrocardiograms (ECGs) revealed ST-segment elevation in leads V1 through V1, suggestive of early repolarization variant (ERPV); in addition, there was evidence of accelerated atrioventricular conduction (short PR interval) and incomplete right bundle branch block (IRBBB). It is postulated that these 2 features represent ECG “correlates” of ERPV, which is characterized by accelerated repolarization and depolarization, and are due to a rapid conduction through all or some component(s) of the atria/AV-node/Hiss bundle/left bundle branch/left ventricle “chain,” leading to a short PR interval and early and accelerated activation of the left ventricle, with resultant IRBBB. In addition to this being a case report, it constitutes a speculation that all the noted ECG findings are related and occurred in the context of ERPV; in all scientific fairness, it is possible that the accelerated atrioventricular conduction and IRBBB could have also occurred in a patient who happened to have ERPV. Finally, the occasional occurrence of morbidity and mortality in a patient with ERPV does not mitigate (at least until we know more) the time-honored belief that the ERPV is, after all, a benign ECG variant.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Electrocardiology - Volume 41, Issue 1, JanuaryâFebruary 2008, Pages 35.e1-35.e7
Journal: Journal of Electrocardiology - Volume 41, Issue 1, JanuaryâFebruary 2008, Pages 35.e1-35.e7
نویسندگان
John E. MD, FACC, FAHA,