کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5984646 1178607 2014 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Chest pain associated with rate-related left bundle branch block and cardiac memory mimicking ischemia
ترجمه فارسی عنوان
درد قفسه سینه همراه با وابستگی به میزان مرتبط با بستری سمت چپ بستری و حافظه قلبی تقلید از ایسکمی
موضوعات مرتبط
علوم پزشکی و سلامت پزشکی و دندانپزشکی کاردیولوژی و پزشکی قلب و عروق
چکیده انگلیسی

BackgroundIntermittent left bundle branch block (LBBB) has been linked to chest pain, and causes cardiac memory electrocardiographic (ECG) changes mimicking ischemia.PurposeTo present a case of chest pain with ECG abnormalities suggestive of ischemia, both likely caused by LBBB.CaseA 33-year-old hypertensive female evaluated for chest pain and LBBB by ECG was treated with lisinopril and metoprolol, and scheduled for stress testing. A 12-lead ECG performed prior to the stress test, due to recurrence of the chest pain the preceding night, showed resolution of the LBBB with a lower heart rate, and T-wave inversions in the precordial leads suggestive of ischemia. She developed chest pains with reappearance of LBBB during stress testing, which prompted cardiac catheterization. This revealed normal coronaries and left ventricular systolic function. The ECG abnormalities were in retrospect likely due to cardiac memory. Her chest pains may have been caused by the intermittent, rate-related LBBB, as control of her heart rate and blood pressure with metoprolol and lisinopril improved her symptoms on follow-up.ConclusionIntermittent LBBB causes chest pain and electrocardiographic abnormalities suggestive of ischemia in the absence of obstructive coronary disease. Certain clinical and electrocardiographic features may provide clues to a non-ischemic etiology.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Cardiology Cases - Volume 9, Issue 3, March 2014, Pages 87-90
نویسندگان
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