Use of intermediate guide catheters as an adjunct in extracranial embolization to avoid onyx reflux into the anastomotic vasculature. A technical note
UMass Chan Affiliations
New England Center for Stroke ResearchDepartment of Radiology, Division of Neuroimaging and Intervention
Document Type
Journal ArticlePublication Date
2014-07-01Keywords
CathetersCentral Nervous System Vascular Malformations
Cerebral Angiography
Cerebral Veins
Dimethyl Sulfoxide
Embolization, Therapeutic
Humans
Male
Middle Aged
Occipital Lobe
Polyvinyls
Treatment Outcome
Vertebral Artery
Radiology
Metadata
Show full item recordAbstract
Onyx is a non-adhesive polymer used for embolization of arteriovenous malformations and dural arteriovenous fistulas (DAVFs). The limiting factor for Onyx embolization is usually the amount of microcatheter reflux, which can be safely tolerated. The dual microcatheter technique, compliant balloon use proximally and the use of the dual lumen Scepter balloon have been described to prevent and limit proximal Onyx reflux. We describe the use the Navien 058 intermediate guide catheter to accept the Onyx reflux in its lumen and possibly also serve as a mechanical barrier to avoid reflux into the anastomotic channel connecting the occipital artery to the vertebral artery during DAVF embolization via the occipital artery. Complete embolization of the DAVF was achieved using the lumen of the Navien catheter to accept aggressive Onyx reflux. Complete cure of the DAVF was obtained with Onyx cast filling the entire venous pouch. Besides providing distal access support, intermediate guide catheters can also prevent embolic material reflux by accepting reflux into the lumen and providing a mechanical barrier.Source
Interv Neuroradiol. 2014 Jul-Aug;20(4):424-7. doi: 10.15274/NRJ-2014-10040. Epub 2014 Aug 28.DOI
10.15274/NRJ-2014-10040Permanent Link to this Item
http://hdl.handle.net/20.500.14038/48021PubMed ID
25207904Related Resources
Link to Article in PubMedae974a485f413a2113503eed53cd6c53
10.15274/NRJ-2014-10040