TIMI flow
Pronunciation: TIE-mee flow
A standardized grading system for assessing coronary artery blood flow during angiography.
Full Definition
TIMI (Thrombolysis in Myocardial Infarction) flow is a standardized classification system used to grade coronary artery perfusion during angiography. The scale ranges from TIMI 0 (no flow) to TIMI 3 (normal flow), with TIMI 1 indicating minimal flow and TIMI 2 representing slow flow. This grading system was developed to provide consistent assessment of coronary flow in acute myocardial infarction studies and has become the standard for evaluating procedural success in coronary interventions. TIMI flow assessment is crucial for determining treatment efficacy and predicting patient outcomes.
Usage
Usage note: Always specify the TIMI grade (0-3) and vessel when documenting flow.
In Context
- "Post-intervention angiography showed restoration of TIMI 3 flow in the RCA." — Primary PCI procedure note
- "The patient presented with TIMI 0 flow in the left main coronary artery." — Emergency cardiac catheterization report