Related Experiment Video
Updated: Jun 4, 2026

Transradial Access Chemoembolization for Hepatocellular Carcinoma Patients
Published on: September 20, 2020
Transulnar approach: the rationale from the radialist's view.
Pedro Beraldo de Andrade1, Marden André Tebet, Mônica Vieira Athanazio de Andrade
1Santa Casa de Marília, Marília, SP, Brazil. pedroberaldo@gmail.com
Ulnar artery access is a safe and effective alternative for coronary procedures when radial access fails. This approach minimizes vascular complications and offers a similar safety profile, especially regarding bleeding.
Area of Science:
- Cardiology
- Vascular Access Techniques
Background:
- Radial access offers patient comfort and reduced costs, with fewer vascular complications.
- Ulnar access is a viable alternative when radial artery access is not feasible.
Purpose of the Study:
- To assess the safety and effectiveness of using the ulnar artery for coronary procedures.
- Evaluate ulnar access outcomes following unsuccessful radial artery attempts.
Main Methods:
- Prospective registry of 115 patients undergoing 122 coronary procedures via ulnar access.
- Data collected from May 2007 to February 2009.
Main Results:
- Successful coronary procedures in 95% of cases.
- No major bleeding, transfusions, or vascular repair surgeries.
- Minor complications included hematomas (4.9%), spasms (4%), and asymptomatic ulnar artery occlusion (1.6%) without ischemia.
Conclusions:
- Ulnar artery access is a feasible and effective option for coronary interventions.
- It provides a comparable safety profile to radial access, particularly concerning hemorrhagic complications.
Related Concept Videos
Bones of the Upper Limb: Radius
The radius has a nail-shaped head, and a short...
Arteries of the Upper Limbs
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:
Bones of the Upper Limb: Ulna
Radial System Protection
In a radial system with a fault downstream of the third breaker, ideally, only the third breaker will open, isolating the fault and interrupting the load connected beyond it. The second breaker has a longer delay setting,...
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
