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Distal Transradial Access for Diagnostic Cerebral Angiography and Neurointervention: Systematic Review and
H Hoffman1, M S Jalal2, H E Masoud3
1From the Department of Neurosurgery (H.H., M.S.J., G.C.G.), State University of New York Upstate Medical University, Syracuse, New York hoffmanh@upstate.edu.
AJNR. American Journal of Neuroradiology
|March 12, 2021
Summary
Distal transradial access in the anatomic snuffbox is a safe and effective alternative for cerebral angiography and neurointerventions. This approach shows high success rates and low complication rates compared to traditional methods.
Area of Science:
- Neurology
- Interventional Radiology
- Vascular Surgery
Background:
- Traditional radial artery access for cerebral angiography is performed at the wrist.
- Distal transradial access in the anatomic snuffbox offers potential advantages over traditional methods.
Purpose of the Study:
- To review the safety and efficacy of distal transradial access for diagnostic cerebral angiography and neurointerventions.
- To evaluate outcomes associated with this alternative access site.
Main Methods:
- A comprehensive literature search was conducted using PubMed, Scopus, and EMBASE.
- Included were case series of at least 10 patients detailing outcomes of distal transradial access for cerebral angiography or neurointervention.
- Random-effects models were used to pool success and complication rates.
Main Results:
- Seven studies with 348 diagnostic angiograms and 111 interventions met the criteria.
- The pooled procedural success rate was 95% (95% CI, 91%-98%).
- The pooled minor complication rate was 2% (95% CI, 1%-4%), with no major complications reported.
Conclusions:
- Distal transradial access appears to be a safe and effective alternative for cerebral angiography and neurointerventions.
- Further studies are required to confirm its efficacy and compare it with other access sites like proximal radial or femoral access.

