Prognostic significance, angiographic characteristics and impact of antithrombotic and anticoagulant therapy on outcomes in high versus low grade coronary artery ectasia: A long‐term follow‐up study

Objectives To assess the prognostic significance of high vs. low grade coronary artery ectasia (CAE) and the impact of antithrombotic or anticoagulant therapy on adverse cardiac outcomes. Background There is paucity of knowledge on the impact of angiographic characteristics in CAE or that of antithrombotic or anticoagulant therapy on outcomes. Methods and results In this retrospective study, we reviewed angiograms and medical records of all cases of confirmed CAE (2001–2011). Extent of CAE was categorized using the Markis classification. Types 1 and 2 were categorized as high‐grade and types 3 and 4 as low‐grade CAE. Angiographic flow was recorded as normal or sluggish (