Wellens syndrome is a typical electrocardiographic and clinical pattern that correlates with a severe proximal stenosis of the left anterior descending artery (LAD). It is associated with previous angina, no or slightly increased cardiac markers, and two ECG patterns: diphasic T wave in V2-V3 (Type A) or deep negative T waves from V1 to V4 (type B). In this paper, we described two cases with asymptomatic Wellens patterns. We describe two cases of Wellens syndrome ECG pattern that we observed in our Emergency Department not accompanied by chest pain or angina equivalents. Both patients presented significant stenosis of LAD at the coronary angiography. Asymptomatic patients presenting with Wellens ECG pattern should perform a coronary arteriography cause of the risk of a severe LAD stenosis. We need further studies to confirm if all "silent" Wellens syndromes deserve angiographic study.