transradial approach
Percutaneous coronary access through the radial artery, associated with reduced bleeding complications compared to transfemoral access.
Full Definition
The transradial approach refers to cardiac catheterization performed via puncture of the radial artery at the wrist, as opposed to the traditional transfemoral approach through the groin. This technique has gained widespread adoption due to significantly lower rates of access site bleeding, reduced patient discomfort, and earlier mobilization. The approach requires specific equipment including smaller guide catheters and longer guidewires. Contraindications include inadequate collateral circulation confirmed by negative Allen's test, severe peripheral artery disease affecting the upper extremity, or need for large-bore devices that exceed radial artery capacity.
Usage
Usage note: Often abbreviated as TRA in procedural notes.
In Context
- "The transradial approach was selected to minimize bleeding risk in this patient on dual antiplatelet therapy." — Procedure planning note
- "Conversion from transradial to transfemoral access was necessary due to severe radial artery spasm." — Catheterization laboratory report