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Procedures
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Interventional:
Diagnostic
Cardiac Catheterization
Coronary
Balloon Angioplasty
Peripheral
Angioplasty
Coronary
Stent Placement
Rotoblater
and Atherectomies
Permanent
Pacemakers
Defibrillator
Implantation
Electrophysiologic
Investigation
AICD
(Automatic Implantable Cardioverter Defibrillator)
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Outpatient:
Treadmill
Testing
Electrocardiogram
(EKG and ECG)
Peripheral
Vascular Testing (carotid, abdominal, renal, arterial, and venous doppler).
24-Hour
Holter Monitoring
Echocardiography
(both Transthoracic and Transesophageal)
Pacemaker
and Defibrillator Checkups
A
Fully-Equipped Laboratory
High-Complexity
Diagnostics
Nuclear
Cardiology
Cardioversion
Event
Recording and Assessment of Rhythm Disturbances
External Counterpulsation Therapy
Transcranial Doppler
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Diagnostic Cardiac Catheterization
A diagnostic cardiac Catheterization,
also called coronary angiography or heart catheterization, is a procedure
that provides detailed information about the function of the heart and
its arteries. By combining that information from blood tests and other
diagnostic tests with a cardiac catheterization procedure, your doctor
can accurately diagnose a heart condition and the most effective treatment
plan.
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Coronary Balloon Angioplasty
Percutaneous transluminal
coronary angioplasty (PTCA), or balloon angioplasty, is a procedure
used to open narrowed coronary arteries. It is performed with a local
anesthesia while the patient is awake. Patients whose angina has not
been relieved by medications are generally the best candidates for PTCA.
There are several other commonly used treatments for opening blocked
arteries such as the Rotoblator procedure (tiny rotating blades) or
Atherectomies (cutters) to cut away plaque buildup on the artery walls,
or Stents (a little metal "scaffold") that widens obstructed
arteries.
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Peripheral Angioplasty
Peripheral angioplasty is
performed much like that of PCTA or percutaneous transluminal coronary
angioplasty, but to open blocked arteries or remove blood clots in the
patient's legs.
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Coronary Stent Placement
The Stent is a stainless
steel device (scaffold) which compresses the plaque, much like in the
coronary balloon angioplasty procedure. It is implanted by guiding a
thin, balloon-tipped catheter through the artery to the blockage. The
collapsed stent is part of the catheter tip, and when the balloon is
inflated the stent expands into place allowing the flow of blood once
again through the coronary arteries. After a couple of weeks tissue
forms around the stent and it becomes a permanent support for the artery.
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Rotoblater and Atherectomies
The rotoblator is a procedure
used to clear blocked arteries. Your doctor guides a thin catheter through
the artery to the blocked area. The catheter contains a small, specially
designed, rotating blade which chips off hard plaque buildup on the
artery walls. The chips of plaque are then small enough to be absorbed
and expelled into the blood stream. The atherectomy procedure is similar
however it contains a cutter which shaves the plaque away from the artery
wall. The plaque is then removed through the catheter. Both procedures
are used to effectively clear blocked arteries.
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Permanent Pacemakers
A pacemaker
is a battery-operated device that helps maintain a normal heart rhythm.
It sends electrical signals to the heart to stimulate contracting or
pumping of the heart muscle. It is designed specifically for patients
who have irregular or very slow heart rates and symptoms of fainting
or fatigue.The rate is set by the doctor. The pacemaker generator is
placed under the skin on the chest wall below the collarbone. It contains
a battery and wires(leads) which are positioned inside the heart and
transmit the signal from the battery to the heart thus causing the
contracting.
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Defibrillator Implantation
An implantable cardiovertor
defibrillator system or implantable cardiac devices (ICD), is a small
electronic device that monitors heart rhythm and delivers a shock to
correct a potentially fatal heart rhythm if it should occur. The generator
is surgically implanted beneath the skin and muscle beneath the collarbone.
Wire electrodes attach the pulse generator to the heart. Some of the
wires are inserted through veins into the inside of the heart and can
sense the heartbeat. Other wires may be attached directly to the heart.
These wires are used to deliver the shock, if necessary, which converts
the heart back to its normal rhythm.
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Electrophysiologic Investigation
Electrophysiology testing
makes it possible to study heart rhythm disturbances under controlled
conditions. By using special insulated wires called catheters, your
doctor is able to identify the rhythm disturbance and choose the best
treatment method. The procedure is performed in the cath lab. It involves
inserting thin plastic catheters into the large blood vessels in your
groin and arm, then guiding them to the heart with the help of a special
X-ray machine. When the catheters are in place in your heart, a doctor
who specializes in electrophysiology will stimulate the heart artificially
with electrical impulses delivered through the catheters. Your doctor
will watch the heart's reaction to determine the extent of rhythm
disturbance.
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AICD (Automatic Implantable Cardioverter Defibrillator)
An AICD is a computerized
device implanted in the abdominal wall. It detects and generates electrical
impulses through leads placed on or in the heart that sense a cardiac
disturbance such as the onset of a recurrent heart attack or heart failure
(tachycardia or fibrillation). The primary purpose of the AICD is to
deliver a counter-shock to the heart in order to stabilize and resuscitate
the patient's normal heart rhythm.
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Transcranial Doppler
Transcranial Doppler (TCD) technology dramatically simplifies the detection
of PFO’s. Patent Foramen Ovale (PFO) is increasingly being recognized
as a cause of up to 56% of cryptogenic stroke and TIA’s, as well as a possible
cause of migraine headaches. Other benefits of TCD include increased
cost effectiveness and less patient discomfort compared to transesophageal
echocardiography (TEE).
Transcranial Doppler (TCD) allows for non-invasive monitoring of cerebral
blood flow. Embolic signals are detected after an injection of agitated
saline (micro air bubbles) into an arm vein. This safe non-invasive
procedure is done during resting conditions and during Valsalva.
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Treadmill Testing
Commonly referred to as the
Stress Test, Treadmill Testing takes about 45 minutes and evaluates
the heart's response to increased activity. It is used in several ways
to diagnose coronary artery disease, to monitor the progress of your
treatment or as part of a routine physical exam.
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Electrocardiogram (EKG and ECG)
The EKG records the heart's
electrical activity to detect abnormal heartbeats (rhythmias). It can
even show a heart attack in progress.
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Peripheral Vascular Testing (carotid, abdominal, renal, arterial, and venous doppler)
Peripheral Vascular Testing (carotid, abdominal, renal,
arterial, and venous doppler)
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24-Hour Holter Monitoring
The Holter monitor is used
in diagnosing heart rhythm disturbances that may occur at times when
you are away from the doctor. It is used in conjunction with a written
diary or log of your daily events and activities. The Holter monitor
allows doctors to relate those symptoms to actual variations in heart
rhythms, providing them with further diagnostic information for determining
the most course of treatment.
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Echocardiography (both Transthoracic and Transesophageal)
This test uses ultrasound-high
frequency sound waves-to create a videotape of the heart's chambers,
valves, wall motion, and blood flow patterns. This can be done by applying
the ultrasound probe to the chest wall or by passing the probe down
the patient's throat in order to image the patient's heart from inside
the chest (transesophageal).
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Pacemaker and Defibrillator Checkups
The heart is required to
maintain a fast enough heartbeat and rhythm to keep blood flowing throughout
the body. Pacemakers and Defibrillators are devices sometimes implanted
in the body to keep the heart beating properly. Period checkups are
required of these devices.
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A Fully-Equipped Laboratory
The lab is fully-equipped
to take chest X-rays to determine the size of the heart and condition
of the lungs, cardiac enzyme counts to determine if heart muscle is
damaged, cholesterol, triglyceride, and/or glucose (blood sugar) levels
to help identify risk factors for heart disease, and blood samples for
further diagnosis.
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High-Complexity Diagnostics
A common high-complexity
outpatient diagnostic test is cardiac catheterization, also called coronary
angiography or heart catheterization. These procedures provide more
detailed information about the function of the heart and its arteries
than other diagnostic tests. However, by combining information from
blood and other diagnostic tests with a cardiac cath procedure, your
doctor can more accurately diagnose a heart condition and prescribe
the most effective treatment plan.
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Nuclear Cardiology
Using a high resolution detector-camera
in conjunction with a pharmacologic radionuclide and treadmill test,
your doctor can perform four different nuclear cardiology studies of
the heart.
1. Cardiac Blood Pool Imaging, also known as a MUGA,
to evaluate the left and right ventricul function including
wall motion and blood ejection fraction.
2. A Myocardial Perfusion test can assess coronary
artery disease utilizing the treadmill and pharcologic
agent.
3. Radionuclide Angiocardiography to assess right
ventricular ejection fraction
4. Shunt Evaluation to assess abnormal intracardiac
communications.
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Cardioversion
With the patient sedated,
pads are applied to the chest and an electrical impluse is delivered
to correct some types of abnormal heart rhythm. Event Recording and
Assessment of Rhythm Disturbances Event recording is often necessary
when the normal pacing of the heart is disturbed. There are several
treatments which help in the assessment of a rhythm disturbance. They
are: Electrocardiogram or 24 Hour Holter Monitoring which records the
heart rate in the doctor's office or while you go about your daily activities,
or an echocardiogram whereby images are made of the heart through sound
waves otherwise known as ultrasound. In some cases it may also be necessary
to stimulate the heart through electrical Cardioversion
to restore normal rhythm.
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Event Recording and Assessment of Rhythm Disturbances
Event recording is often
necessary when the normal pacing of the heart is disturbed. There are
several treatments which help in the assessment of a rhythm disturbance.
They are: Electrocardiogram or 24 Hour Holter Monitoring which records
the heart rate in the doctor's office or while you go about your daily
activities, or an echocardiogram whereby images are made of the heart
through sound waves otherwise known as ultrasound. In some cases it
may also be necessary to stimulate the heart through electrical Cardioversion
to restore normal rhythm.
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External Counterpulsation Theraphy
External Counterpulsation (ECP) is a non-invasive outpatient treatment for
coronary artery disease that has not responded to conventional medical and/or
surgical therapy. ECP therapy is intended to help relieve persistent
anginal symptoms in those individuals who cannot be treated effectively with
medication, or who are unsuitable, or unwilling to undergo invasive procedures
such as angioplasty or bypass surgery.
ECP therapy typically consists of 35 one-hour treatments performed one to two
times daily, 5 days per week. Using three sets of cuffs that wrap around
the calves, thighs, and buttocks, serial inflations of the cuffs are performed,
increasing blood flow and oxygen back to the heart. It is also believed
that the pressure created by ECP therapy promotes the development of new
pathways or collateral vessels that form natural bypass networks around
narrowed or blocked arteries. As a result of this treatment, most patients
experience a reduction in the frequency and severity of anginal symptoms, as
well as, increased activity/exercise tolerance. Most patients tolerate
ECP therapy with few side effects.
ECP Therapy is best suited for patients with the following conditions:
Patients with persistent anginal symptoms despite conventional
therapy including angioplasty &/or bypass sugery
Patients who are not candidates for invasive or surgical
treatments due to other medical conditions
Patients who are not willing to have surgery or other invasive
procedures
Patients with very small coronary (heart) vessels, in particular
diabetic patients
Patients who are not provided adequate relief with Nitrates
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Copyright © 2003 by Heart & Vascular Center of Arizona
ALL RIGHTS RESERVED
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