RT Journal Article
SR Electronic
T1 Republished: The bumper technique for advancing a large profile microcatheter
JF Journal of NeuroInterventional Surgery
JO J NeuroIntervent Surg
FD BMJ Publishing Group Ltd.
SP e38
OP e38
DO 10.1136/neurintsurg-2016-012872.rep
VO 9
IS 12
A1 Christopher P Kellner
A1 Alexander G Chartrain
A1 Claire Schwegel
A1 Thomas J Oxley
A1 Hazem Shoirah
A1 J Mocco
YR 2017
UL http://jnis.bmj.com/content/9/12/e38.abstract
AB Operators commonly encounter difficulty maneuvering a microcatheter beyond the distal lip of wide neck aneurysms and aneurysms in challenging locations. Few techniques have been described to guide operators in these particular situations. In this case report of a 56-year-old woman with a 16 mm ophthalmic artery aneurysm, the microcatheter continually snagged the distal aneurysm lip, preventing delivery of a flow diverter into the distal parent vessel. In troubleshooting this obstacle, a second microguidewire was introduced alongside the microcatheter and was used to cover the distal lip of the aneurysm to prevent further snagging. The second guidewire successfully deflected the microcatheter into the distal vessel, a technique that we have aptly dubbed the ‘bumper technique’.