J Korean Neurosurg Soc.  2012 Jun;51(6):374-376. 10.3340/jkns.2012.51.6.374.

Retained Microcatheter after Onyx Embolization of Intracranial Arteriovenous Malformation

• Lee JI
• Choi CH
• Ko JK
• Lee TH

• KMID: 2190494
• DOI: http://doi.org/10.3340/jkns.2012.51.6.374

Abstract

Endovascular embolization is being increasingly used to treat intracranial arteriovenous malformations (AVMs). However, we experienced two patients with retained microcatheters after AVM embolization using Onyx.

Keyword

Arteriovenous malformation; Onyx; Retained microcatheter

MeSH Terms

Arteriovenous Malformations
Humans
Intracranial Arteriovenous Malformations

Figure

• 

  Fig. 1 A : Non contrast enhanced brain computed tomography shows small amount of intraventricular hemorrhage in both lateral ventricle. B : Right vertebral artery angiography reveals small arteriovenous malformation (AVM) fed by right superior cerebellar artery braches and draining through internal cerebral vein (arrow). C : Superselective angiography demonstrates angioarchitecture of the AVM. D : Postprocedural radiography shows Onyx material. Black arrow indicates the cast of Onyx. E : Abdomino-pelvic computed tomography 2 years after embolization shows peripheral wall reposition of the retained microcatheter in descending aorta.

• 

  Fig. 2 Anterior-posterior view of plain X-ray of the skull and pelvis. Black arrows indicate a retained microcatheter in arteries.

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