|
Ablation
Ablation is a relatively non-invasive
procedure that involves inserting
catheters – narrow, flexible
wires – into a blood vessel,
often through a site in the
groin or neck, and winding the
wire up into the heart. The
journey from entry point to
heart muscle is navigated by
images created by a fluoroscope,
an x-ray-like machine that provides
continuous, “live”
images of the catheter and tissue.
Once the catheter reaches the
heart, electrodes at the tip
of the catheter gather data
and a variety of electrical
measurements are made. The data
pinpoints the location of the
faulty electrical site. During
this “electrical mapping,”
the cardiac arrhythmia specialist,
an electrophysiologist, may
sedate the patient and instigate
some of the very arrhythmias
that are the crux of the problem.
The events are safe, given the
range of experts and resources
close at hand, and are necessary
to ensure the precise location
of the problematic tissue.
Once the damaged site is confirmed,
energy is used to destroy a
small amount of tissue, ending
the disturbance of electrical
flow through the heart and restoring
a healthy heart rhythm. This
energy may take the form of
radiofrequency energy, which
cauterizes the tissue, or intense
cold, which freezes, or cryoablates
the tissue. Other energy sources
are being investigated.
Patients rarely report pain,
more often describing what they
feel as discomfort. Some watch
much of the procedure on monitors
and occasionally ask questions.
After the procedure, a patient
remains still for four to six
hours to ensure the entry point
incision begins to heal properly.
Once mobile again, patients
may feel stiff and achy from
lying still for hours.
Balloon
Angioplasty / Atherectomy (PTCA)
A Coronary Balloon Angioplasty
(PTCA) is a minimally invasive
procedure that is done to open
a heart artery that has been
narrowed by plaque. It also
can be done to reduce the risk
of a heart attack or to prevent
further heart damage. This increases
the amount of blood flow through
your coronary arteries. The
physician will determine if
you need this procedure after
reviewing the X-ray pictures
from your cardiac catheterization.
A flexible tube (guiding catheter)
is inserted into the artery
through the sheath and guided
towards the blocked area within
the artery. The physician is
able to view the procedure using
the X-ray images on a monitor.
There is a deflated balloon
at the tip which is inflated
to open up the blockage by compressing
the plaque and stretching the
artery open. It is then deflated
and removed. Some patients will
require stent placement to help
keep the artery open. (See stent
implantation)
This procedure can take 30 minutes
to an hour. An overnight stay
in the hospital is required.
Sometimes prior to a balloon
angioplasty, an Atherectomy
is done. The catheter for this
procedure has a coarse burr
near its tip. The physician
uses this device to shave the
plaque inside the artery into
small bits. These bits are carried
away in the bloodstream. A stent
may also be placed after this
procedure. An Atherectomy along
with balloon angioplasty and
stenting can take one to two
hours to complete.
Incision care and discharge
instructions should be given
to you prior to leaving the
hospital. Please ask the hospital
staff and or physician if you
have questions.
Coronary
Catheterization or Coronary
Angiogram
Cardiac Catheterization or Coronary
Angiogram is a minimally invasive
procedure that allows the physician
to see the blood flow through
your coronary arteries and the
inside of your heart as it pumps.
It also can help to determine
if any of the blood vessels
are blocked, if the heart valves
are working properly, if the
heart has been damaged by disease
or if you were born with a heart
defect.
Information will be given to
you by the physician's office
regarding the instructions to
follow prior to the procedure.
If you have any questions, please
give our office a call.
The procedure is done in a special
area of the hospital. A small
intravenous (IV) catheter is
inserted into your arm or hand
so fluid and/or medication can
be given as needed. Medication
can be given to help you relax;
however, you will need to be
awake during the procedure.
Electrodes will be placed on
your arms and legs so the staff
can monitor your heart rhythm.
Numbing medication will be injected
into the skin at the site where
the catheter will be inserted.
This will either be in your
arm or groin (most common site).
A small opening is made in the
artery in this area and a small
hollow tube (sheath) is placed
into the blood vessel. A thin
flexible tube (catheter) is
then inserted and guided through
until it reaches the heart.
Once there, dye, which is visible
to X-ray, is injected into the
heart. Pictures are then taken
and reviewed by the physician.
The catheterization can take
about 20 minutes to an hour.
There are several methods to
close the puncture site in the
artery; pressure and bed rest,
stitches or a collagen plug.
The physician will determine
the method which is best for
you.
Incision care and discharge
instructions should be given
to you prior to leaving the
hospital. Please ask the hospital
staff and/or physician if you
have any questions.
Electrophysiology
Study
This study is performed after
giving local anesthesia and
conscious sedation to keep the
patient as comfortable as possible.
The procedure involves inserting
a catheter – a narrow,
flexible tube – attached
to electricity monitoring electrodes,
into a blood vessel, often through
a site in the groin or neck,
and winding the catheter wire
up into the heart. The journey
from entry point to heart muscle
is navigated by images created
by a fluoroscope, an x-ray-like
machine that provides continuous,
“live” images of
the catheter and heart muscle.
Once the catheter reaches the
heart, electrodes at its tip
gather data and a variety of
electrical measurements are
made. These data pinpoint the
location of the faulty electrical
site. During this “electrical
mapping,” the cardiac
arrhythmia specialist, an electrophysiologist,
may instigate, through pacing
(the use of tiny electrical
impulses), some of the very
arrhythmias that are the crux
of the problem. The events are
safe, given the range of experts
and resources close at hand
and are necessary to ensure
the precise location of the
problematic tissue.
Once the damaged site or sites
are confirmed, the specialist
may administer different medications
or electrical impulses to determine
their ability to halt the arrhythmia
and restore normal heart rhythm.
Based on this data, as well
as information garnered before
the study, sometimes the specialist
will proceed to place an implantable
cardioverter device (ICD) or
a pacemaker or will perform
radiofrequency ablation. In
any case, the information proves
useful for diagnosis and treatment.
Throughout the procedure, the
patient is sedated but awake
and remains still. Patients
rarely report pain, more often
describing what they feel as
discomfort. Some watch the procedure
on monitors and occasionally
ask questions. Others sleep.
The procedure usually takes
about two hours. The patient
remains still for four to six
hours afterward to ensure the
entry point incision begins
to heal properly. Once mobile
again, patients may feel stiff
and achy from lying still for
hours.
Coronary
Stent Implantation
The need for a coronary stent
is determined by the physician
after reviewing cardiac catheterization
images. They are inserted after
most balloon angioplasties.
Stents are small, metal, spring-like
devices about the size of a
spring in an ink pen. Some patients
think they look like a small
chain link fence rolled into
a tube. They are used to help
prevent the coronary artery
from narrowing again (restenosis).
There are different sizes and
types of stents. Drug eluting
stents are coated in a medication
to help reduce the amount of
scar tissue that forms in the
artery. The type of stent that
is used will be determined by
the physician.
During the procedure, the stent
is mounted on a balloon-tipped
catheter. The physician moves
the catheter into the area of
the blockage and inflates the
balloon. This causes the stent
to expand and press against
the artery wall. The balloon
is then deflated and withdrawn,
leaving the stent in place to
hold the artery open and allow
blood flow through the artery.
X-ray pictures are taken again
to evaluate the improvement
of blood flow.
The procedure can take approximately
60 to 90 minutes to complete
if done with a balloon angioplasty.
An overnight stay in the hospital
will be required.
To reduce the risk of a blood
clot from forming inside your
stent, the physician may prescribe
an anti-platelet medication
for you take to make the platelets
in the blood less sticky. Other
medication changes may also
be suggested by the physician.
These medications are extremely
important and should not be
stopped or adjusted without
consulting your cardiologist.
Incision care and discharge
instructions will be given to
you prior to leaving the hospital.
Please ask the hospital staff
or physician if you have any
questions.
|