Balloon-Assisted
Technique for Trapped Microcatheter
Retrieval Following Onyx Embolization. A Case Report
A.
Santillan,
W.
Zink,
J.
Knopman,
H.
Riina,
Y.P.
Gobin
Summary
-
During
embolization
of
a
large
frontal
arteriovenous
malformation
(AVM),
Onyx-18
(eV3)
was
injected
into
an
M3
branch
of
the
middle
cerebral
artery
via
a
Marathon
microcatheter
(eV3).
After
40
minutes
of
embolization,
the
microcatheter
could
not
be
retracted
due
to
fixation
within
the
Onyx
cast
despite
prolonged,
robust
attempts.
A
balloon
microcatheter
(HyperformTM,
eV3)
was
advanced
distally
and
inflated
to
provide
distal
counter
tension,
allowing
microcatheter
retrieval
with
minimal
traction
on
the
vasculature.