Immediate Versus Deferred PCI in Patients Presented With Acute ST Segment Elevation Myocardial Infarction with Moderate to High Thrombus Burden

Abstract

ABSTRACT During performing primary PCI, moderate to high thrombi may be found occluding the culprit artery partially or totally. Thrombus grading scales are essential tools used for qualification and quantification of the thrombus burden. They provide a platform for clinical assessment and subsequently affect the management decisions prior to and during interventions. The widely used TIMI thrombus grading scale was originally created by the TIMI study group investigators. TIMI classification relies on the angiographic assessment of the presence of thrombus and its relative size, utilizing a simple score ranging from grade 0 (no thrombus), to grade 5 (very large thrombus content that completely occludes vessel flow. (2)