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KMID : 0191120140290050685
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Journal of Korean Medical Science
2014 Volume.29 No. 5 p.685 ~ p.690
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The Relationship Between J Wave on the Surface Electrocardiography and Ventricular Fibrillation during Acute Myocardial Infarction
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Kim Soo-Han
Kim Dae-Hyeok
Park Sang-Don
Baek Yong-Soo
Woo Seong-Ill
Shin Sung-Hee
Kwan Jun
Park Keum-Soo
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Abstract
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We investigated whether the presence of J wave on the surface electrocardiography (sECG) could be a potential risk factor for ventricular fibrillation (VF) during acute myocardial infarction (AMI). We performed a retrospective study of 317 patients diagnosed with AMI in a single center from 2009 to 2012. Among the enrolled 296 patients, 22 (13.5%) patients were selected as a VF group. The J wave on the sECG was defined as a J point elevation manifested through QRS notching or slurring at least 1 mm above the baseline in at least two leads. We found that the incidence of J wave on the sECG was significantly higher in the VF group. We also confirmed that several conventional risk factors of VF were significantly related to VF during AMI; time delays from the onset of chest pain, blood concentrations of creatine phosphokinase and incidence of ST-segment elevation. Multiple logistic regression analysis demonstrated that the presence of J wave and the presence of a ST-segment elevation were independent predictors of VF during AMI. This study demonstrated that the presence of J wave on the sECG is significantly related to VF during AMI.
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KEYWORD
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J Wave, Ventricular Fibrillation, Acute Myocardial Infarction
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