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Abstract

The effect of flow arrest on distal embolic events during arterial occlusion with detachable coils: a canine study.

S R Hughes, V B Graves, P P Kesava and A H Rappe
American Journal of Neuroradiology April 1996, 17 (4) 685-691;
S R Hughes
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V B Graves
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P P Kesava
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A H Rappe
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Abstract

PURPOSE To determine the effect of proximal flow arrest on the frequency and timing of distal embolic events during occlusion of the common femoral artery with detachable coils.

METHODS Twenty-three complex fibered platinum coils were delivered into 10 common femoral arteries without proximal flow arrest. The arteries were continuously monitored for flow and embolic events by Doppler sonography during delivery and for at least 10 minutes after delivery of each coil. Thirty-four coils were delivered into 6 arteries after proximal flow arrest by inflation of a nondetachable balloon. After balloon deflation, each artery was monitored by Doppler sonography for 10 minutes.

RESULTS In the 10 arteries occluded without flow arrest, 87 events (8.7 per artery) occurred, of which 47 were embolic and 40 were indeterminate. In the 6 arteries with flow arrest, the number of emboli detected was 3 (0.5 per artery). Embolic events occurred only if there was residual flow. In those arteries that were occluded when the flow-arrest balloon was deflated, no emboli were detected.

CONCLUSIONS Proximal flow arrest virtually eliminates the risk of distal emboli during arterial occlusion with detachable fibered coils. The use of fibered coils, in conjunction with proximal flow arrest, allows for safe arterial occlusion when detachable balloons are not available or their use is not feasible.

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American Journal of Neuroradiology
Vol. 17, Issue 4
1 Apr 1996
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The effect of flow arrest on distal embolic events during arterial occlusion with detachable coils: a canine study.
S R Hughes, V B Graves, P P Kesava, A H Rappe
American Journal of Neuroradiology Apr 1996, 17 (4) 685-691;

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The effect of flow arrest on distal embolic events during arterial occlusion with detachable coils: a canine study.
S R Hughes, V B Graves, P P Kesava, A H Rappe
American Journal of Neuroradiology Apr 1996, 17 (4) 685-691;
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