A new operative classification of both anatomic vascular variants and physiopathologic conditions affecting...

Area of Science:

• Cardiovascular Interventions
• Interventional Cardiology
• Vascular Anatomy

Background:

• The transradial approach (TRA) reduces access-site complications in coronary procedures compared to the transfemoral approach.
• However, limited adoption of TRA is attributed to its higher failure rate, often stemming from anatomical variations in upper limb arteries.
• Existing classifications of these variants are based on postmortem or systematic angiographic studies, lacking an 'operative' focus.

Discussion:

• This study introduces a simplified 'operative' classification for anatomical vascular variants and physiopathological conditions affecting the arterial axis from the radial artery to the aortic root.
• This classification aims to provide a practical framework for interventional cardiologists to anticipate and manage TRA failures.
• Understanding these specific arterial variations is crucial for improving the success rates of transradial cardiovascular procedures.

Key Insights:

• Anatomical variations in the upper limb arterial system are the primary cause of transradial approach failure.
• A novel, simplified 'operative' classification is proposed to categorize these vascular variants and conditions.
• This classification facilitates better procedural planning and management, potentially improving transradial approach success rates.

Outlook:

• Further validation of this operative classification in clinical practice is warranted.
• Implementation of this classification may lead to reduced transradial approach failure rates and improved patient outcomes.
• This work could enhance the diffusion and standardization of the transradial approach in interventional cardiology.