TIMI flow grade
Pronunciation: TIE-mee flow grayd
Also written as: TIMI — Thrombolysis in Myocardial Infarction flow grade
Standardized angiographic scoring system (0-3) used to assess coronary blood flow during cardiac catheterization procedures.
Full Definition
The Thrombolysis in Myocardial Infarction (TIMI) flow grade is a widely used classification system for evaluating coronary perfusion during angiography. Grade 0 indicates no flow, Grade 1 shows minimal flow without complete vessel filling, Grade 2 demonstrates delayed but complete filling, and Grade 3 represents normal flow. This grading system is crucial for assessing the success of interventional procedures and predicting patient outcomes following acute coronary events.
Usage
Usage note: Always capitalize TIMI when referring to the scoring system.
In Context
- "Post-intervention angiography showed restoration of TIMI flow grade 3 in the left anterior descending artery." — Interventional cardiology procedure report
- "The patient presented with TIMI flow grade 0 in the right coronary artery requiring immediate intervention." — Emergency catheterization report