• J. Korean Med. Sci. · May 2014

    The relationship between J wave on the surface electrocardiography and ventricular fibrillation during acute myocardial infarction.

    • Soo-Han Kim, Dae-Hyeok Kim, Sang-Don Park, Yong-Soo Baek, Seong-Ill Woo, Sung-Hee Shin, Jun Kwan, and Keum-Soo Park.
    • Department of Internal Medicine, Inha University Hospital, Incheon, Korea.
    • J. Korean Med. Sci. 2014 May 1; 29 (5): 685-90.

    AbstractWe 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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