Transatlantic Inter-Society Consensus
Also written as: TASC — Transatlantic Inter-Society Consensus
A standardized classification system (TASC) for aortoiliac and femoropopliteal arterial lesions used to guide treatment decisions.
Full Definition
The Transatlantic Inter-Society Consensus (TASC) is a comprehensive classification system that categorizes peripheral arterial lesions into four types (A, B, C, D) based on complexity, length, and location. TASC A lesions are typically treated endovascularly, while TASC D lesions usually require surgical bypass. TASC B and C lesions represent intermediate complexity where treatment approach depends on patient factors and institutional expertise. The classification has been updated (TASC II) to reflect advances in endovascular techniques and is widely used in clinical practice and research to standardize treatment recommendations.
Usage
Usage note: Always capitalize TASC when used as acronym; specify TASC I or TASC II when referencing specific versions.
In Context
- "The patient presented with TASC D femoropopliteal disease requiring surgical bypass." — consultation note
- "TASC B lesions may be suitable for either endovascular or open surgical treatment." — treatment guidelines