"
The Yale investigators had previously shown that anger predisposed people
to having arrhythmias. ZOLL also will unveil
its latest automated external defibrillator (AED) for professional
first responders , the AED Pro(TM), which extends ZOLL's AED product
line. Factors that
could cause actual results to differ materially from those expressed
or implied by such forward-looking statements include, but are not
limited to the ability of the ZOLL sales force to market successfully
multiple resuscitation products, and those factors discussed in the
section entitled "Risk Factors" in ZOLL's Quarterly Report on Form
10-Q, which was filed with the SEC on February 11, 2005. All rights reserved. 2002:106 (19)(Suppl II):538.

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The world's most renowned scientists and physicians will present a
wide range of heart rhythm topics including advances in statins, cardiac
resynchronization therapy, catheter ablation, cardiac pacing and heart failure
and the latest technology, including state-of-the-art pacemakers and
defibrillators. Packer, President and Chief Executive
Officer of ZOLL. It also provides AED capability with manual override
access for Advanced Life Support (ALS) users.

stethoscope rfitt

org.

The AutoPulse(TM) Non-invasive Cardiac Support Pump provides
the potential of normal blood flow levels during sudden
cardiac arrest(1,2). AED Plus, AED Pro, AutoPulse,
CodeNet, LifeBand, and M Series are trademarks of ZOLL Medical
Corporation. Improved survival with a novel chest
compression device during a porcine model of cardiac arrest.

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The new study finds that the electrical
characteristics of anger-triggered arrhythmias are more disorganized and
unstable than arrhythmias unrelated to emotional events -- a possible clue
explaining why sudden cardiac arrest increases in people during stressful
times."

HEART RHYTHM 2005 is May 4-7 at the Ernest N.
There is a growing body of third-party research supporting the
benefits of the AutoPulse. The U.

The ZOLL AED Plus(TM) can help infrequent rescuers administer
defibrillation and CPR in non-clinical areas of the hospital,
or as part of community outreach programs.

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Food and Drug Administration (FDA) cleared
ZOLL's Rectilinear Biphasic(TM) waveform (RBW), which is used
in all ZOLL defibrillators, to be labeled as clinically
superior to monophasic defibrillators for the conversion of
ventricular fibrillation in high impedance patients, and for
cardioversion of atrial fibrillation. All trademarks are property of their respective owners. 2004;61:273-280.

rfitt intraoperative

----

Unveils the AED Pro, an Automated External Defibrillator for
Professional First Responders

ZOLL Medical Corporation (NASDAQ: ZOLL), a manufacturer of
resuscitation devices and software solutions, will display its
advanced products in Booth #2981 at the American College of
Cardiology's 54th Annual Scientific Sessions. This statement
does not convey or imply the American Heart Association
endorsement, or suggestion of superiority of this or any
product or equipment.

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2005;9(1):61-67.

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They asked 24 patients with implantable cardiac
defibrillators (ICDs) to keep a diary of their emotions before they received a
shock for a cardiac arrhythmia. "Learning more about the electrical
characteristics of these emotionally-triggered events could help in the
prevention and treatment of sudden cardiac arrest. The AED Plus converts the
compression data from the CPR-D-padz and provides visual and
audible feedback that tells a rescuer, "Push harder" or "Good
compressions. ZOLL also designs
and markets software that automates the documentation and management
of both clinical and non-clinical data. Circulation .

(5) Casner M et al.

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It is the only AED
that helps rescuers achieve the recommended rate and depth of
chest compressions during CPR.

catheters subcutaneous

Prehospital Emergency Care.

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The new study
finds that all anger-triggered arrhythmias were initiated by one or more
premature ventricular contractions (PVC), while 68 percent of arrhythmias not
caused by anger were initiated by PVCs. Hammill , MD, the Heart
Rhythm Society's president. The AED Pro features a
high-quality display for ECG monitoring with standard ECG electrodes.

Additional ZOLL Products On Display at ACC's 2005 Scientific
Sessions

ZOLL CodeNet is the first software system for hospital code
response teams to document, manage, and review cardiac arrest
event and resuscitation data.

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"Our new AED Pro(TM), CodeNet(TM), and the
AutoPulse(TM) Non-invasive Cardiac Support Pump are examples that
reinforce our commitment to advance the practice of resuscitation, and
help clinicians save lives that would otherwise be lost.

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"This study provides valuable insight into the mystery surrounding these
heart disorders caused by anger," says Stephen C.
The meeting is the most comprehensive educational event on heart rhythm
disorders, offering over 400 educational opportunities in multiple formats and
over 125 innovative products and services for the heart rhythm management
field. It provides efficiencies in data
capture, event-time synchronization, and reporting. ZOLL is a registered trademark of ZOLL Medical
Corporation.

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"Our study suggests that anger is associated with more dangerous
arrhythmias, which could possibly be due to the higher adrenaline levels
associated with anger and stress," says Matthew Stopper, MD, lead author in
the Department of Internal Medicine at Yale School of Medicine. Using data from this earlier work, the
current study compared the electrical characteristics of anger-triggered
arrhythmias against arrhythmias not associated with anger.

(3) Timerman S et al.

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M Series customers can configure the
device to include multiple monitoring parameters and operating
modes. Additional subscription to the NRCPR is
required .
Circulation. Prehospital Emergency Care.

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NEW ORLEANS, Cardiac arrhythmias brought on by anger
are more deadly than arrhythmias not caused by extreme emotion, according to a
new study presented today at HEART RHYTHM 2005, the Heart Rhythm Society's
26th Annual Scientific Sessions.

"To improve resuscitation outcomes, we believe additional
technology must become available as an adjunct to defibrillation
efforts," said Richard A. It is the
only system that time stamps logged events and synchronizes
these times with defibrillator data, providing clinicians with
a complete and accurate timeline of an entire cardiac arrest
event.S. 2003;108(17 )(suppl IV):381.
9(1):104.

zmi transvac

It is comprised of a backboard and a
simple load-distributing LifeBand(TM) that fastens across a
patient's chest and moves more blood, more
effectively,(1,2,3,4,5) than human hands can possibly do.
ZOLL has operations in the United States , Canada, the United
Kingdom, Germany, France, The Netherlands, Australia, and Austria.
(C) 2005 ZOLL Medical Corporation. 269 Mill
Road, Chelmsford, MA 01824-4105. Improved hemodynamics with a novel chest
compression device during a porcine model of cardiac arrest.

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Morial Convention Center in
New Orleans. Attended by more than 16,000 medical professionals, the sessions
will take place March 6 through March 9 in Orlando, Florida.

(a) This software is compatible with the NRCPR . Improvement in field return of spontaneous
circulation using circumferential chest compression
cardiopulmonary resuscitation.

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With direct operations, international offices, and business partners
in all of the world's major markets, ZOLL markets and sells its
products in more than 140 countries. The impact of a new CPR assist device on rate
of return of spontaneous circulation in out-of-hospital
cardiac arrest.

qrs catheters

"This could
be a contributing factor as to why the rate of sudden death increases during
natural disasters and war."

ZOLL AED Pro for Professional First Responders

The AED Pro offers advanced capabilities for Basic Life Support
(BLS) users.
It is the only professional defibrillator to use ZOLL's CPR-D-padz(TM)
electrode that measures the rate and depth of chest compressions
during CPR, and provides visual and audible feedback on performance.
Certain statements contained in this press release, including
statements regarding the anticipated development of ZOLL's business ,
potential sales levels, its ability to differentiate its products from
others on the market, and other statements contained herein regarding
matters that are not historical facts, are "forward -looking"
statements (as defined in the Private Securities Litigation Reform Act
of 1995).

(1) Halperin HR et al. Improved hemodynamic performance with a
novel chest compression device during treatment of in-hospital
cardiac arrest.

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With
products for pacing, defibrillation, circulation , ventilation, and
fluid resuscitation, ZOLL provides a comprehensive set of technologies
that can help clinicians, EMS professionals, and lay rescuers
resuscitate sudden cardiac arrest or trauma victims. Because such statements are subject to risks and
uncertainties, actual results may differ materially from those
expressed or implied by such forward-looking statements.

(2) Ikeno F et all.

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For more information, please visit the Heart Rhythm Society website at
http://www .

The WCD 3000S Patient Management System allows in-hospital
patients who are at high risk of ventricular fibrillation and
ventricular tachycardia to be monitored constantly and receive
an immediate defibrillating shock, if needed."

About ZOLL Medical Corporation

ZOLL Medical Corporation (NASDAQ: ZOLL) is committed to developing
technologies that help advance the practice of resuscitation.

(4) Ornato JP et al.

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HRSonline. It provides
patients with unhindered mobility, and clinicians with the
assurance of high-quality care , regardless of the patient's
location or need to ambulate.
Circulation.

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Clue May Explain Mystery of Emotionally-Triggered Sudden Cardiac Arrest

Zoll Displays Advanced Resuscitation Products at 2005 Scientific Sessions of the American College of Cardiology

Business Editors
2005 Scientific Sessions of the American College of Cardiology

CHELMSFORD, Mass.

The ZOLL M Series(TM) is the monitor/defibrillator of choice
at top cardiac hospitals.