Related Experiment Video
Updated: Aug 6, 2026

Upper-extremity Approach for Secondary Access in Transfemoral Transcatheter Aortic Valve Implantation
Published on: August 8, 2025
Precision approach for transradial access during PCI: a state-of-the-art review
Tanawat Attachaipanich1, Muzamil Khawaja2, Hafeez Ul Hassan Virk3
1Department of Internal Medicine, University of Missouri-Kansas City School of Medicine, Kansas city, MO, United States.
The transradial approach (TRA) is preferred for cardiac procedures due to fewer complications. Refinements improve success, but optimal anticoagulation and alternative access sites need further study.
Area of Science:
- Cardiology
- Interventional Cardiology
- Vascular Access
Background:
- The transradial approach (TRA) is now the standard for coronary angiography and percutaneous coronary intervention (PCI).
- TRA offers significant benefits over the transfemoral approach, including reduced bleeding, vascular complications, and mortality in acute coronary syndromes (ACS).
Purpose of the Study:
- To review technical refinements and strategies to optimize TRA success.
- To discuss alternative access sites like distal radial (dTRA) and ulnar approaches.
- To examine optimal anticoagulation strategies and management of TRA-related complications.
Main Methods:
- Review of current literature on TRA techniques, including puncture methods and vasodilator use.
- Analysis of alternative access strategies (dTRA, ulnar) and their associated benefits and limitations.
- Discussion of anticoagulation protocols and complication management in the context of TRA.
Main Results:
- Technical refinements like ultrasound guidance and radial cocktails improve TRA success and reduce radial artery spasm (RAS).
- Distal radial (dTRA) and ulnar approaches may lower radial artery occlusion (RAO) rates and preserve conduit arteries but require more experience.
- Optimal anticoagulation strategies for TRA are still debated, as the bleeding risk is already low.
Conclusions:
- TRA is a safe and effective vascular access method for cardiac procedures, with ongoing refinements enhancing its utility.
- While dTRA and ulnar approaches show promise, further research and operator experience are needed.
- Preventing and managing complications like hematoma, RAS, and RAO remains crucial for successful TRA outcomes.
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Assessment of radial pulse
The radial pulse, located at the wrist, is often the preferred site for assessing peripheral pulse because of its accessibility and dependability. The process of determining the radial pulse involves several steps:
Cardiac Catheterization I: Pre-Procedure Overview
Assessment of apical radial pulse
The A-R pulse assessment involves simultaneous evaluation of the apical and radial pulses. When the apical and radial pulse rates vary, this assessment helps identify a pulse deficit.
Pre-Procedural Preparation

