12 Lead ECG Features of Proximal LAD Occlusion

An ECG pattern is described in chest pain patients which signifies proximal LAD artery occlusion found at angiography: precordial ST-segment depression at the J-point followed by peaked, positive T-waves. Lead aVR displays also displayed slight ST-segment elevation in the majority of cases.
A letter in response points out that this finding was first reported in 1947.
Persistent precordial “hyperacute” T-waves signify proximal left anterior descending artery occlusion
Heart 2009;95;1701-1706

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