Influence of conduction disturbances on clinical outcome in patients with acute myocardial infarction receiving thrombolysis (results from the ARGAMI-2 study) |
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Authors: | Abidov Aiden Kaluski Edo Hod Hanoch Leor Johnatan Vered Zvi Gottlieb Shmuel Behar Solomon Cotter Gad;Israel Working Group on Intensive Cardiac Care |
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Institution: | Cardiology Department, Assaf-Harofeh Medical Center, Zerifin, Israel. |
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Abstract: | Right bundle branch block and complete atrioventricular (AV) block are conduction disorders (CDs) that have been observed in 14% of patients admitted with ST-elevation acute myocardial infarction. CDs carry a poor prognosis, with a threefold increase in the mortality rate, mainly due to cardiogenic shock and recurrent fatal myocardial infarction at 1-year follow-up. According to multivariable analysis, CD was the second strongest predictor of death, after high Killip class. Compared with patients without CD, the 1-year outcome of patients with CD was identically worse, irrespective of whether CD appeared during admission, disappeared, or remained constant. Similar adverse outcomes were seen in patients with complete AV block and right bundle branch block. |
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