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Aneurysm Embolization System
for the Treatment
of Cerebral Aneurysms
Information for Patients and Families
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Information for patients and families
This booklet aims to provide
information about the WEB device
and how it is used to treat brain
(cerebral) aneurysms. It is intended
for use by patients and their families
in whom treatment with a WEB
device has been proposed.
If you have any questions about the
WEB device, or would like further
information about brain aneurysms,
please do not hesitate to contact a
member of the team caring for you.
They will be happy to answer any
question you may have.
1/
What is a brain aneurysm?
What are the different types of brain aneurysms?
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2/
What are the treatment options for brain aneurysms?
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3/
What is the WEB device?
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4/
How can the WEB device help?
How should I prepare for the WEB device procedure?
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5/
What happens during a WEB device procedure?
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6/
What should I expect after the WEB device procedure?
Emergency information
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1/
What is a brain aneurysm?
What are the different types of aneurysms?
A brain aneurysm is a bulging, weak area in the wall of an artery that supplies
blood to the brain. In some circumstances the brain aneurysm ruptures, releasing
blood into the skull and causing a hemorrhagic stroke. Brain aneurysms are also
called cerebral aneurysms.
Causes
This headache may be accompanied by other
A person may inherit the tendency to form an-
changes in speech, difficulty moving, neck pain
eurysms, or aneurysms may develop because of
and loss of consciousness. A ruptured brain
hardening of the arteries and aging. Additional
aneurysm is a life-threatening emergency that
risk factors may include: family history, previous
requires immediate medical attention.
symptoms that may include blurred vision,
aneurysms, gender, race, high blood pressure,
Aneurysm
Saccular aneurysm
drug use and smoking.
Saccular aneurysms
Symptoms
Saccular aneurysms account for 80 % to 90 % of
Brain aneurysms can manifest in two different
aneurysms are also known as “berry” aneurysms.
ways, un-ruptured and ruptured.
They often form at the “Y” segment of arteries.
Most un-ruptured brain aneurysms cause no
symptoms and may only be discovered during
tests for another, usually unrelated, condition.
Fusiform aneurysm
Fusiform aneurysms
Sometimes, un-ruptured aneurysms will cause
Fusiform aneurysms are less common and look
problems by pressing on nerves and other
like an out-pouching of an arterial wall on both
structures in the brain. This can cause a person
sides of the artery – similar to a blood vessel
to experience the following potential symptoms:
that is expanded in all directions.
headaches, blurred vision, changes in speech,
difficulty moving, and neck pain.
Ruptured aneurysm
all brain aneurysms. Given their shape, these
Ruptured brain aneurysms cause immediate,
significant, and life threatening symptoms.
In most circumstances, a ruptured aneurysm
will cause a severe headache often described
by patients as the “worst headache of my life.”
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2/
What are the treatment options for brain aneurysms?
As described below, there are several options available for the treatment of brain
aneurysms. The location, size and shape of the aneurysm help determine which
treatment is the safest and most effective. Your doctor or a member of their team
will talk through all options with you.
Surgical Clipping is a surgical
Coil Embolization is a minimally
Intraluminal Flow Diverter is a
procedure that requires the open-
invasive procedure. To start, a small
stent like device which is intended
ing of the skull. A small metal clip
puncture is made in the groin to
to divert flow away from the open-
is placed directly around the base
access the femoral artery. A small
ing of an aneurysm. It is placed
of the aneurysm to isolate it from
tube called a catheter is then
using a minimally invasive proce-
normal blood circulation.
inserted into the femoral artery.
dure much like that described for
This relieves the pressure on the
The catheter is then advanced
the coiling of an aneurysm. This
aneurysm and makes it less likely
through the main artery in the
allows for healing of the aneurysm.
to rupture
body and finally into the affected
artery in the brain. Once there,
the end of the catheter is carefully
positioned inside the aneurysm.
A series of tiny metal coils are then
moved through the catheter and
detached inside the aneurysm.
These coils help slow and eventually
stop blood flow into the aneurysm.
This causes the aneurysm to heal
and seal off. Sometimes tiny
balloons and/or small mesh tubes
called stents are used in conjunction with coils to help place the
coils inside the aneurysm and to
help the coils stay in place.
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What is the WEB device?
The WEB device is a tiny basket, made of
very fine wire mesh. The WEB is placed
into an aneurysm, reducing and eventually
stopping the blood flow within it. Over time,
the WEB device allows the aneurysm to heal
and seal off.
diameter
7 mm
WEB DL
WEB SL
WEB SLS
5 mm 11 mm
4 mm
4 mm
WEB DL is
WEB SL is
WEB SLS is
available in
available in
available in
24 sizes with
26 sizes with
8 spherical sizes
diameters
diameters
with diameters
from 5 – 11 mm
from 4 – 11 mm
from 4 – 11 mm
11 mm
11 mm
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How can the WEB device help?
How should I prepare for the WEB device procedure?
The aim of the WEB device is to prevent blood
from entering an aneurysm and therefore
reduce the risk of it bleeding. It is designed to
allow physicians to successfully treat large, wide
necked aneurysms that may be difficult to treat
with coils alone.
Coil technology
WEB technology
Tell your physician about all medications you are
taking prior to treatment to determine the best
way to prepare. After you arrive at the hospital,
the hospital staff will explain all the risks and
benefits of your proposed treatment. If you
are unsure about any aspect, do not hesitate to
speak with a member of the staff again. Final
preparations before the WEB procedure will
include additional tests, special medicines, and
preparation of the puncture site in your groin.
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What happens during a WEB device procedure?
The procedure is performed by a physician
trained in neurovascular procedures in a
special operating room.
Once the anesthetic has been delivered and you
are comfortably asleep, the physician will make
a small puncture in your groin to access the
large artery there called the femoral artery.
The physician will then use X-ray guidance to
place a thin, flexible plastic tube called a catheter
into the femoral artery. The catheter will be
advanced through the femoral artery into the
main artery in the body called the aorta and
finally into one of the arteries supplying the brain.
The catheter is then carefully advanced into the
aneurysm. Finally, the WEB device is collapsed
onto itself so it can be pushed through the catheter. As the WEB exits the end of the catheter it
folds back into its original basket-like shape and
is gently deployed into the aneurysm.
Once deployed, the WEB immediately reduces
and eventually stops the amount of blood getting
into the aneurysm and begins the process of the
aneurysm clotting off. The physician will verify
the placement of the WEB using special X-rays.
Once the physician is satisfied with the position
of the WEB it is detached from its delivery system and the catheter is removed.
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What should I expect after the WEB device procedure?
Emergency information
Although the post treatment regimen can vary
by hospital, generally after the procedure you
will spend time in a special recovery unit before
being transferred back to your room. This unit
provides a high level of monitoring.
You can expect to remain in the hospital after
the procedure until you are walking and feeling
normal.
Your physician will monitor the treated aneurysm over time to ensure it is healing properly.
Call your treating hospital /physician or emergency
if any of the following occur:
A post procedure head-
Any neurological
ache that becomes very
impairment including
severe
difficulty speaking,
difficulty moving or
visual disturbances
Drowsiness
Severe neck stiffness
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Notes and questions
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Notes and questions
Patient Information Card
LB0043–EN Rev A
The WEB Aneurysm Embolization System and
VIA Microcatheter have both received the CE
mark. They are not approved for or available
for sale or use in the United States.
Sequent Medical Inc.
11 Columbia
Aliso Viejo, CA 92656
Sequent Medical Europe GmbH
An der Marienkapelle 10
53179 Bonn / Germany
Office:+1 (949) 830-9600
Fax: +1 (949) 830-9699
Office: +49 - 228 - 550 791 - 0
Fax: +49 - 228 - 550 791 - 20
[email protected]
www.sequentmedical.com