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Research ArticleINTERVENTIONAL

Initial Clinical Experience with a New Self-Expanding Nitinol Stent for the Treatment of Intracranial Cerebral Aneurysms: The Cordis Enterprise Stent

Randall T. Higashida, Van V. Halbach, Christopher F. Dowd, Louis Juravsky and Sean Meagher
American Journal of Neuroradiology August 2005, 26 (7) 1751-1756;
Randall T. Higashida
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Van V. Halbach
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Christopher F. Dowd
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Louis Juravsky
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Sean Meagher
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  • Fig 1.
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    Fig 1.

    Cordis Enterprise stent, a nitinol, self-expanding, microstent with a closed-cell design. When fully expanded, it is 4.5 mm in its central portion. The distal ends flare out, and each end has four radiopaque markers for enhanced visibility.

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    Fig 2.

    A, Posterior communicating artery aneurysm. Coil compaction with residual aneurysm filling. The neck width (arrows) is 5.5 mm and the dome height with residual aneurysm filling is 4.9 mm.

    B, Enterprise stent (arrows) is placed across the neck of the aneurysm in the supraclinoid internal carotid artery.

    C, Following stent placement and coiling, there is excellent blood flow across the stent and excellent coil occlusion of the aneurysm (arrow).

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    Fig 3.

    A, Fusiform aneurysm of the distal vertebral artery (arrows) measuring 10.6 mm in length, with the posterior inferior cerebellar artery arising from the distal portion of the aneurysm (curved arrow).

    B, Enterprise stent has been placed across the aneurysm, a microcatheter (white arrow) is in the aneurysm, and a balloon (black arrows) is placed across the stent to ensure that the coils remain within the aneurysm and outside the parent artery.

    C, A total of eight Orbit coils were placed into the aneurysm, with occlusion of the lower two-thirds of the aneurysm and preservation of the upper one-third to preserve blood flow to the posterior inferior cerebellar artery (arrow).

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    Fig 4.

    A, A 54-year-old woman presenting with recurrence of a giant distal basilar artery aneurysm. The base of the aneurysm incorporates both superior cerebellar arteries (small arrows) and the right posterior cerebral artery (large arrow). The left posterior cerebral artery is occluded.

    B, To maintain patency of both superior cerebellar arteries and the posterior cerebral artery, it was decided to place the stent 5 mm above the origin of the right posterior cerebral artery, directly within the aneurysm. The “white line” indicates stent deployment.

    C, Following stent deployment, a total of 13 additional Orbit coils were placed above the stent and were well maintained in position by the deployed stent. The postocclusion angiogram demonstrates significant reduction in flow to the aneurysm, while maintaining sufficient blood flow to both superior cerebellar arteries (small arrows) and the posterior cerebral artery (large arrow) by the stent.

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    TABLE 1:

    Characteristics of patients treated by stenting

    Age (years)SexAn. LocationPresenting SxNeck Size (mm)Height (mm)Width (mm)No. Coils
    65MSupraclinoidPrior SAH3.32.93.21
    70MPost comm.Prior SAH5.55.04.94
    64FDistal basilarPrior SAH4.35.13.15
    71MDistal vertebralMass effect10.68.58.58
    54FDistal basilarPrior SAH6.97.912.113
    • Note.—An. indicates aneurysm; Sx, symptoms; Comm., communicating; SAH, subarachnoid hemorrhage.

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American Journal of Neuroradiology: 26 (7)
American Journal of Neuroradiology
Vol. 26, Issue 7
1 Aug 2005
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Initial Clinical Experience with a New Self-Expanding Nitinol Stent for the Treatment of Intracranial Cerebral Aneurysms: The Cordis Enterprise Stent
Randall T. Higashida, Van V. Halbach, Christopher F. Dowd, Louis Juravsky, Sean Meagher
American Journal of Neuroradiology Aug 2005, 26 (7) 1751-1756;

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Initial Clinical Experience with a New Self-Expanding Nitinol Stent for the Treatment of Intracranial Cerebral Aneurysms: The Cordis Enterprise Stent
Randall T. Higashida, Van V. Halbach, Christopher F. Dowd, Louis Juravsky, Sean Meagher
American Journal of Neuroradiology Aug 2005, 26 (7) 1751-1756;
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