Article

Combined use of stents and coils to treat experimental wide-necked carotid aneurysms: preliminary results.

Dent Neurologic Institute, Buffalo, NY.
American Journal of Neuroradiology (impact factor: 2.93). 07/1994; 15(6):1091-102.
Source: PubMed

ABSTRACT To develop a new technique to treat wide-necked side-wall aneurysms, combining the implantation of intraarterial stents with the endosaccular placement of coils.
Bilateral side-wall aneurysms were surgically created on the carotid arteries of four dogs. In each animal, Guglielmi detachable coils were introduced into one of the aneurysms after implantation of a balloon-expandable Strecker stent within the parent artery, adjacent to the aneurysm orifice. The contralateral aneurysms were treated with coils alone.
In two dogs, one of the stented and both nonstented aneurysms remained partially open for 4 weeks after subtotal packing with coils. In another two dogs, tight aneurysm packing with coils resulted in complete occlusion of all four aneurysms. Bulging of the coil mass resulted in 30% to 75% narrowing of the nonstented parent arteries. At 4 and 5 weeks, significant stenosis resulting from reactive hyperplasia was observed in all stented carotid arteries.
Based on these preliminary results, we conclude that Guglielmi detachable coils can be introduced into an aneurysm cavity through Strecker stents. The stents allow tighter packing of wide-necked aneurysms by preventing coils from migrating or bulging into the parent arteries.

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Keywords

5 weeks
 
75% narrowing
 
aneurysm cavity
 
aneurysms
 
balloon-expandable Strecker stent
 
Bilateral side-wall aneurysms
 
coil mass
 
coils
 
contralateral aneurysms
 
four aneurysms
 
Guglielmi detachable coils
 
intraarterial stents
 
nonstented aneurysms
 
nonstented parent arteries
 
reactive hyperplasia
 
stented
 
stented carotid arteries
 
two dogs
 
wide-necked aneurysms
 
wide-necked side-wall aneurysms
 

I Szikora