Differential Diagnosis of AMI and PTE in Patients with Negative T Wave in Anterior Leads of Electrocardiogram
의약학 > 내과학
( Donghan Kim ) , ( Jeong Gwan Cho ) , ( Ki Hong Lee ) , ( Min Goo Lee ) , ( Keun Ho Park ) , ( Doo Sun Sim ) , ( Nam Sik Yoon ) , ( Hyun Ju Yoon ) , ( Kye Hun Kim ) , ( Young Joon Hong ) , ( Ju Han Kim ) , ( Youngkeun Ahn ) , ( Myung Ho Jeong ) , ( Jong
대한내과학회 추계학술발표논문집 2011년, 제2011권 제1호, 135(총1페이지)
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    Background and study objective: The anterior ischemic pattern such as negative T wave is most frequent Electrocardiographic (ECG) sign of pulmonary thromboembolism (PTE) or anterior wall acute myocardial infarction (AMI). The aim of the present study was to evaluate the distinguishable findings between AMI and PTE in patients with negative T wave in anterior lead. Subject and methods: We analyzed 12-lead ECG, echocardiography and laboratory finding of 151 patients (PTE group; n=51, AMI group; n=100) with the diagnosis of PTE and AMI confirmed by computed tomography or coronary angiography, at Chonnam National University Hospital, between July 2008 and July 2011. The ECG analysis included S1Q3T3 complex(negative S waves in lead I and negative Q or T waves in lead III), sinus tachycardia(>100 beats/min), right bundle branch block (RBBB), low QRS voltage in peripheral leads and pulmonary P wave in lead II. Echocardiographic findings was included both ventricular systolic function and right ventricular systolic pressure (RVSP). We compared the ECG, echocardiography and biomarkers to distinguish from PTE and AMI. Results: S1Q3T3 was the most frequent ECG finding (42%), and was more common in PTE than AMI (42% vs. 8.1%, p<0.001). Also sinus tachycardia (36% vs. 6.1%, p<0.001), low QRS in peripheral leads (24% vs. 8.1%, p=0.011), pulmonary P wave in lead II (10% vs. 1%, p=0.016) was more common in AMI than PTE. In echocardiography, RVSP (56 mmHg vs. 29.85 mmHg, p<0.001) and systolic function (65.64% vs. 56.41%, p<0.001) were significantly higher in PTE than AMI. In laboratory findings, D-dimer (0.7851 vs. 0.2112, p<0.001) was significantly higher and Troponin-I was significantly lower (0.4814 vs. 5.7928, p<0.001) in PTE than AMI. Conclusion: The S1Q3T3 in ECG, elevated RVSP in echocardiography, and D-dimer in laboratory findings were useful to distinguish AMI from PTE in patients with negative T wave in anterior lead.
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