Your doctor has scheduled you for an electrophysiology study otherwise
known as EPS or EP studies. The purpose of doing an EPS is to study the
electrical system of the heart so the doctor will know best how to treat
you. The heart has an electrical system that controls how your heart beats.
When this electrical system is working properly the heart usually beats
between 60 an 100 times per minute. The electrical impulse travels a pathway
from the top of the heart to the bottom of the heart. Sometimes, the electrical
system is not following a normal pathway, and the heart may beat too rapidly
or too slowly. When this happens, the heart may not be able to pump adequate
amounts of blood to your body.
Before The Test
You may be asked to stop
taking any medicines that
affect your heart
Your heart will be monitored
prior to the procedure.
You will be asked to
sign consent forms after your doctor
has answered all of
Most patients are not
allowed to eat or drink after
midnight prior to the
procedure. Ask your nurse.
You will be asked to
empty your bladder prior to the
procedure and to wear
only a hospital gown.
You may be given some
medicine to help you relax
before the procedure.
You will be taken to
the cardiac cath lab by wheelchair
During The Test
You will be lying on
a padded flat table. Your heart will
be monitored, and X
ray equipment will be around you.
The equipment is sensitive
to heat so therefore, the room
is kept cold.
A numbing medicine (local
anesthetic) will be injected into
your groin area and
a small catheter (tube) will be inserted
into the vein in your
Small wires will be guided
into your heart through the
catheters in the groin.
X ray equipment will be used to tell
if the wires are in
the correct position in your heart.
The doctor will use the
wires to attempt to determine
what is wrong with the
electrical system in your heart.
Inform your doctor how
you are feeling during the
Immediately After The Test
The catheter in your
groin may be removed before you
return to your room,
or it may remain in place for a short
time. When this catheter
is removed, a bandage will be
applied and the site
will be checked. You will be ordered
to stay at bed rest
for at least several hours after the
The doctor will talk
to you about the results of the study
and the plans for the