Is Radial Access Safer for Brain Aneurysm Treatments?

Access Route and Radiation Exposure in Aneurysm Care

Physicians choose between two main routes for endovascular aneurysm treatment. They typically use either the radial artery in the wrist or the femoral artery in the groin. However, many experts worry about potential radiation exposure differences. Therefore, researchers recently investigated whether transradial access increases radiation doses. This comparison helps interventionalists prioritize patient safety during complex brain procedures. Consequently, understanding these metrics is essential for optimizing neurointerventional practice.

Improving Endovascular Aneurysm Treatment Safety

A retrospective study at a major medical center analyzed over 200 patients. Experienced neuroradiologists performed all endovascular aneurysm treatment procedures using standard protocols. Interestingly, the data revealed no significant difference in radiation between the two access routes. Specifically, the median dose area product remained similar for both transradial and transfemoral groups. Moreover, procedural outcomes and success rates did not vary significantly based on the chosen path. These results suggest that doctors can safely choose the most appropriate access for each patient. Nevertheless, other factors like the specific device used still influence the total radiation dose.

Key Factors Influencing Total Exposure

Complex techniques like stent-assisted coiling significantly increased radiation levels in this study. Furthermore, the use of flow diverters also correlated with higher cumulative exposure. Physicians should monitor these factors closely to minimize risks during intervention. Additionally, shorter procedure times generally lead to lower radiation doses for patients. Therefore, technical proficiency remains a critical component of radiation safety. Ultimately, this study reinforces the safety of radial access in neurovascular care. Consequently, neuroradiologists in India and abroad can continue adopting radial-first strategies with confidence.

Frequently Asked Questions

Q1: Is radial access associated with higher radiation in aneurysm treatment?

No, recent evidence suggests that radiation exposure is comparable between transradial and transfemoral access routes during these procedures.

Q2: Which procedures lead to the highest radiation exposure?

Stent-assisted coiling and the use of flow diverters typically involve higher radiation doses due to increased procedural complexity.

References

1. Peter G et al. Radiation exposure in transradial versus transfemoral access in endovascular treatment of intracranial aneurysms. Eur Radiol. 2026 May 04. doi: 10.1007/s00330-026-12603-7. PMID: 42080881.
2. Amankwah C et al. Comparison of radiation exposure and clinical outcomes between transradial and transfemoral diagnostic cerebral approaches. BMJ Open. 2022;12(1):e055639.
3. Salehi A et al. Transradial versus transfemoral approach in cerebral angiography: A meta-analysis. J Clin Neurosci. 2021;89:102-108.