Chest X-Ray to Predict Difficult Right Transradial Cardiac Catheterization Due to Vascular Tortuosity: A...

Area of Science:

• Cardiology
• Radiology
• Medical Imaging

Background:

• Tortuosity in the brachiocephalic artery can complicate right transradial cardiac catheterization.
• Identifying this anatomical variation prospectively allows for alternative procedural site selection, preventing mid-procedure complications.

Purpose of the Study:

• To identify a reliable radiographic predictor of brachiocephalic artery tortuosity.
• To assess if preprocedural chest X-rays can identify patients at risk for procedural difficulties during right transradial cardiac catheterization.

Main Methods:

• A prospective study comparing 23 patients with challenging right transradial access due to brachiocephalic artery tortuosity against 29 controls.
• Analysis of preprocedural chest X-rays for measurable anatomic parameters, focusing on the vertebrocarinal distance.

Main Results:

• The vertebrocarinal distance, measured on midline chest X-rays, was the most reliable and statistically significant radiographic predictor of brachiocephalic artery tortuosity.
• This measurement aids in identifying patients likely to experience difficulties with right transradial access.

Conclusions:

• The vertebrocarinal distance is a novel, significant radiographic marker for predicting brachiocephalic artery tortuosity.
• Utilizing this predictor can decrease transradial cardiac catheterization failure rates, shorten procedure times, and reduce radiation exposure.