----Arrhythmia
Research Technology, Inc. Zareba was in charge of ECG core lab for the
Multicenter Automatic Defibrillator Implantation Trial II (MADIT II)
and currently runs the ECG core lab for the North American ARVD
Registry (22 enrolling centers) as well as for the MADIT-CRT (100
enrolling centers). In such patients, SAECG
identifies groups with increased and lower risk of death.com, or by telephone at (719) 457-0820, passcode
6200414.

cardioverter congenital

"

Marathoners Run Increased Risk of Abnormal, Rapid Heart Beat
Athletes who participate in endurance sports such as marathons are
significantly more likely to experience atrial fibrillation (AF) than are
inactive people. While marathoners fare far better than sedentary individuals
on cardiovascular risk factors such as cholesterol levels, blood pressure and
heart rate, endurance runners are eight to 14 times more likely to develop AF. AF was documented in eight runners and two control
group individuals.

Thoratec Schedules First Quarter Conference Call Webcast

mended tickers

2. But for women
with two or more hours of moderate/vigorous exertion a week, the risk was 3. PLEASANTON, Calif.

All sites listed are interactive - you will find message boards

prolapse hypoplastic

Predictor(R) (the Company's patented Windows(R) SAECG
software platform) has long been recognized as the "gold standard" in
signal averaging and we are excited about the market prospects for
Predictor (R) as ICD therapy becomes more prevalent and cost becomes a
greater concern.electrocardiology. although endurance sport practice may reduce
cardiovascular events such as heart attack and stroke, it may also have a
negative effect in facilitating the appearance of lone atrial fibrillation.

fib prolapse

Zareba, who has used the ART's patented Predictor(R) signal
averaging software extensively, commented when asked what the
significance of the "rebirth of the method" means that ".. Investigators at the Hospital del Mar in Barcelona, Spain,
conclude that " . Please dial in ten to 15 minutes prior to the beginning of the call.

arrhythmia pacemaker

(the "Company" or "ART") (AMEX: HRT) is
pleased to announce that it will sponsor a satellite session, "Signal
Averaged ECG - Is SAECG Back?" at the combined ISHNE/ISE congress in
Gdansk, Poland on June 3, 2005.
Wojciech Zareba, MD, PHD, FACC, Associate Professor of Medicine
(Cardiology ) at the University of Rochester, Chairman of the
Scientific Committee of the Congress and President Elect of ISHNE will
present "SAECG in Risk Stratification for ICD Therapy" at the
satellite session ."
James E. The factors that could cause actual results to differ
materially include: interruptions or cancellation of existing
contracts, impact of competitive products and pricing, product demand
and market acceptance, risks, the presence of competitors with greater
financial resources than the Company, product development and
commercialization risks, changing economic conditions in developing
countries, and an inability to arrange additional debt or equity
financing.
In women, QT intervals were not affected by obesity.m.com.
A replay of the conference call will be available through Thursday, May 5,
via http://www. In November 2002, the HeartMate was
approved by the FDA as the first, and to date, only heart assist device for
Destination Therapy, or permanent support, providing a new lifesaving
treatment for late-stage heart failure patients ineligible for cardiac
transplantation .

chd 139

More information about factors that potentially could
affect the Company's financial results is included in the Company's
filings with the Securities and Exchange Commission, including its
Annual Report on Form 10-KSB for the year ended December 31, 2003.
The teleconference can be accessed by calling (719) 457-2638, passcode
6200414.

defects prolapse

Vinzenz Hombach (Germany), "Delayed Activation and
Ventricular Arrhythmias: SAECG Link", Dr.there is a
larger group of MADIT II (Multi-center Automatic Defibrillator
Implantation Trial II) type patients with normal QRS duration for whom
there is a limited ability to stratify risk and prioritize for therapy
with implantable cardioverter defibrillators.
Moreover , the overall long-term risk of SCA during the study's 18 years of
follow up was lower with increased physical activity.. The community-based study in Multnomah, OR,
evaluated the electrocardiograms of more than 300 residents who suffered
sudden cardiac death and found the QT intervals (the time for electrical
relaxation of the heart's lower chambers) in obese men were significantly
longer than people of normal weight.

arrhythmia sufferer

Software, such as the ART's patented Predictor(R) software, embedded
in the device then analyzes and filters the data to present the
signal-averaged ECG (SAECG) for interpretation by the cardiologist.
Frank Marcus (USA), SAECG in ARVD (Arrhythmogenic Right Ventricular
Dysplasia). This might improve cost-effectiveness of ICD
therapy in post infarction patients.

ishne. More than 9,000 of its Thoratec(R) Ventricular Assist Devices (VAD)
and HeartMate(R) Left Ventricular Assist Systems (LVAS) have been implanted in
patients suffering from heart failure.

tickers fibrillation

Forward -looking statements made herein are based on current
expectations of the Company that involve a number of risks and
uncertainties and should not be considered as guarantees of future
performance.

coronary fib

Business Editors/Health Editors

FITCHBURG, Mass. The Joint Congress of the
International Society for Holter and Noninvasive Electrocardiology
(ISHNE) and the International Society of Electrocardiology (ISE) will
take place in Gdansk from June 2 through June 4 and marks the first
joint congress of the two societies devoted to the advancement of
research, science and education in the field of electrocardiology. Signal-averaging, which improves the signal to noise ratio,
is the only means to detect and analyze such cardiac microvolt
signals. The most important aspect of
SAECG is its ability to predict those who will not experience these
events. Additionally, its
International Technidyne Corporation (ITC) division supplies blood coagulation
testing and skin incision products .

mended cardiomyopathy

Additional information about the
organizations can be found on the web at http://www., produces silver
plated sensors and distributes metal snaps for manufacturers of
disposable ECG electrodes . Micron's New England Molders division
manufactures custom injection molded products for medical , electronic,
industrial and consumer applications.thoratec.

coronary defects

"
Dr.gdansk2005. Investigators at Massachusetts General
Hospital and Brigham and Women's Hospital in Boston say, "Although it is
difficult to compare our study with similar ones conducted among men, our
study suggests the risk of SCA associated with physical activity may be lower
in women than in men..
The company will hold a conference call to discuss its financial results
and operating activities to all interested parties at 1:30 p.itcmed.

cardiomyopathy mended

Specifically, SAECG have been demonstrated to have predictive
values in the following areas: Stratification of risk of sustained
ventricular tachyarrhythmia's in patients recovering from myocardial
infarction; identification of patients with ischemic (inadequate blood
supply) heart disease; assessment of risk of sudden cardiac death and
predictive value of the need for an implantable cardiac defibrillator
(ICD) in patients with coronary artery disease. Gunter Breithardt (Germany) and Dr .
Thoratec Corporation is a world leader in products to treat cardiovascular
disease.com.

prolapse minuet

Dr . Rouse, the Company's President and CEO stated, "We are
extremely pleased to be a part of the combined ISHNE/ISE Congress
which will be attended by 1500 to 2000 clinicians and researchers from
all over the world. The
study is the first to assess both the short- and long-term risk of SCA
conferred by exercise among women.
The 10-year study compared 305 inactive people to 270 athletes who ran in the
1993 Barcelona Marathon."

Electrical Imbalance May Contribute To Sudden Cardiac Death In Obese Men
(Poster Session)
Electrical imbalances in the heart may be a risk factor for sudden cardiac
death (SCD) in obese men., Pacific
Daylight Time, (4:30 Eastern Daylight Time) , Tuesday, April 26, hosted by D.
Keith Grossman, president and chief executive officer.

pacemaker paroxysmal

."
For more information about the joint congress visit
http://www.viamedica.3
-- compared to 20. Long QT intervals are predictors for SCD.thoratec.

sufferer congenital

Arrhythmia Research Technology Inc. Announces Sponsorship of Satellite Session at Combined ISHNE/ISE Congress in Gdansk Poland.

In
particular, negative predictive value is of significance since SAECG
is able to determine one-third of patients with low risk that might
not require ICD therapy. Zareba has chosen
Predictor(R) for use in his studies and has requested the Company to
sponsor a significant satellite session "Signal-Averaged ECG - Is
SAECG Back?" at the combined congress.org and
http://www. NEW ORLEANS, The following studies on diet +
exercise are being presented during HEART RHYTHM 2005, the Heart Rhythm
Society's 26th Annual Scientific Sessions May 4-7 in New Orleans:

Increased, Long-Term Exercise Reduces Women's Risk of Sudden Cardiac
Arrest
Women may reduce their risk of sudden cardiac arrest (SCA) by exercising
more and over a longer period of time.
The webcast will be available via the Internet at http://www.

triumphs cardioverter

Also presenting at the session, which is being
co-chaired by Dr. Nabil El -Sherif
(USA), are Dr. Thoratec is headquartered in Pleasanton,
California. For more information , visit the company's web sites at
http://ww.

chd defibrillators

A signal-averaged electrocardiogram detects cardiac microvolt
signals. SAECG is recommended for patients recovering from myocardial
infarction to help determine their risk for developing sustained
ventricular tachyarrhythmia's (VT) that could lead to sudden cardiac
death., Thoratec
Corporation (Nasdaq: THOR), a world leader in products to treat cardiovascular
disease, today announced that it will report its operating results for the
first quarter of fiscal 2005 on Tuesday, April 26.

hypoplastic 139

cardioverter congenital

We are honored that Dr. Investigators at Oregon
Health + Science University in Portland hope to find novel ways of preventing
SCD in the general population.

pacemaker hypoplastic

The most commonly demonstrated use for SAECG is the ability to
predict the likelihood of sustained ventricular tachycardia,
ventricular fibrillation, and sudden cardiac death (SCD) in patients
with post myocardial infarction (MI).

The sites provide information and resources .

pacemaker coronary

HEART RHYTHM 2005 Meeting Highlights

9 for women who exercised less than two hours a week.

cabg implantable

Jonathan Steinberg (USA),
"P-Wave Averaging to Identify Risk of Atrial Fibrillation" and Dr.pl.net
In addition to its proprietary SAECG software used in the
detection of potentially lethal heart arrhythmias the Company, through
its wholly owned subsidiary, Micron Products Inc. While moderate to vigorous physical
activity in women was associated with a short-term increase in the risk of
SCA, the risk was lessened amid women who reported more weekly exercise. Thoratec's product line also includes the Vectra(R) vascular
access graft (VAG) for patients undergoing hemodialysis.

Many sites provide up to the minuet news on issues related to health.

arrhythmia tickers

High resolution acquisition equipment is used to collect the
microvolt signals and transfer the data to an analytical system. The continued interest in SAECG as a method of
identifying low risk patients who might not require the intervention
of a cardioverter defibrillator is a significant event for the
Company. Among almost 70,000
women without cardiovascular disease or history of stroke, the relative risk
of SCA within one hour of moderate/vigorous exertion was 6.

You will find sites that serve the needs of people who need support for Congenital Heart Defects, along with Coronary Heart Disease.

defibrillators cardioverter