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KMID : 0385920160270010043
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Journal of the Korean Society of Emergency Medicine
2016 Volume.27 No. 1 p.43 ~ p.51
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Clinical Usefulness of T wave Inversion in Lead aVL of ECG on Acute Coronary Syndrome Patients
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Choi Young-Jin
Park Sang-O
Kim Jong-Won
Hong Dae-Young
Lee Kyeong-Ryong
Baek Kwang-Je
Kim Keun-Soo
Kim Sang-Chul
Kim Jin-Yong
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Abstract
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Purpose: The aim of the study is to evaluate the clinical usefulness of a TWI in the lead aVL of 12-lead ECG for predicting the left ascending artery (LAD) lesion, high risk, and 30-days mortality in patients with acute coronary syndrome (ACS).
Method: A total of 275 patients who underwent coronary angiography under the diagnosis of ACS were analyzed retrospectively from Jan 2012 to December 2013.
Results: A total of 355 patients underwent coronary angiography. Of these, 275 patients (77.5%) were diagnosed with ACS. Of these, 187 patients (68.0%) had a left LAD lesion. Of these, 111 patients (59.3%) had a mid-LAD lesion. Of these, only 23 patients (22.5%) showed a TWI in the aVL lead. However, regarding the prediction of the high risk group, if there is a TWI in the aVL, when compared with patients without a TWI in the aVL, the high risk rate is four times higher in the univariable logistic regression analysis and 2.687 times higher in the multivariable logistic regression analysis.
Conclusion: A TWI in the lead aVL of ECG of patients with chest pain in the ER was closely associated with high risk of ACS patients.
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KEYWORD
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Electrocardiography, Acute coronary syndrome
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