Balloon-augmented carotid artery sacrifice with Onyx: A proof of concept study in a swine model

Alejandro M. Spiotta, Thinesh Sivapatham, Qingshan Teng, Shaye I. Moskowitz, Ferdinand K. Hui

Research output: Contribution to journalArticlepeer-review

9 Scopus citations


Introduction: Carotid sacrifice remains a valuable tool in the treatment of select vascular lesions. Neurointerventionalists have relied on coil embolization as their primary means of carotid sacrifice, a procedure that can be lengthy and expensive with long fluoroscopy times. We investigated a novel technique for carotid sacrifice in a swine model using temporary balloon occlusion to achieve proximal flow arrest in the carotid artery while embolizing the vessel with a liquid embolic agent. Methods: A total of 10 common carotid artery sacrifices were performed in pigs under fluoroscopic guidance. Various balloons were employed to achieve near total proximal flow arrest to allow an Onyx cast to accumulate in the target vessel. Results: The technique for sacrifice was modified during the experiment with the final procedures yielding successful sacrifice using Onyx through a dimethylsulfoxide-tolerant catheter (Echelon 14) with the assistance of two fibered coils and a 5 mmx30 mm Hyperglide balloon resulting in a 2.5 cm long cast. Conclusion: Carotid artery sacrifice using commercially available non-adhesive liquid embolic agents is feasible with balloon assistance, allowing for reduced radiation and material costs. Coils may be beneficial in providing an anchor point for liquid embolic deposition, as well as reducing the volume of liquid embolysate required to achieve vessel occlusion.

Original languageEnglish (US)
Pages (from-to)390-394
Number of pages5
JournalJournal of neurointerventional surgery
Issue number4
StatePublished - Dec 1 2011
Externally publishedYes

ASJC Scopus subject areas

  • Surgery
  • Clinical Neurology


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