We sought to electrocardiographically distinguish ST-segment elevation (STE)-acute myocardial infarction (AMI) caused by occlusion of the first diagonal branch (D1) from STE-AMI caused by occlusion of the left anterior descending coronary artery (LAD).We examined 28 patients with STE-AMI caused by D1 occlusion (G-D) and 342 with STE-AMI caused by LAD occlusion (G-L).G-D had a higher prevalence of STE > or = 0.5 mm in each of leads I and aVL and a lower prevalence of STE > or = 1 mm in each of leads V(1) through V(6) than G-L. The prevalence of STE > or = 0.5 mm in lead aVL without STE > or = 1 mm in lead V(1) was higher in G-D (82.1%) than in G-L (9.4%, P < .01).ST-segment elevation > or = 0.5 mm in lead aVL without STE > or = 1 mm in lead V(1) may be useful to distinguish STE-AMI caused by occlusion of the D1 from STE-AMI caused by occlusion of the LAD.

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branch 01stsegment elevation elevation steacute myocardial infarction

Munenori, Kotoku Akira, Tamura Kazuhiro, Shinozaki Yusei, Abe Toru, Watanabe Junichi, Kadota,.Electrocardiographic differentiation between occlusion of the first diagonal branch and occlusion of the left anterior descending coronary artery.. 42 (5),440-4.

Munenori, Kotoku Akira, Tamura Kazuhiro, Shinozaki Yusei, Abe Toru, Watanabe Junichi, Kadota,"Electrocardiographic differentiation between occlusion of the first diagonal branch and occlusion of the left anterior descending coronary artery." 42

Munenori, Kotoku Akira, Tamura Kazuhiro, Shinozaki Yusei, Abe Toru, Watanabe Junichi, Kadota,"Electrocardiographic differentiation between occlusion of the first diagonal branch and occlusion of the left anterior descending coronary artery."