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Preface
illustrations to enhance understanding of the basic electrophysiologic principles of elec-
trocardiography. Jacob Simlund provided a new perspective on QT interval correction in
Chapter 3.
In the nine chapters of Section II (Abnormal Wave Morphology), the standard 12-lead
ECG recordings have been modified from their typical format. Single cardiac cycles are
included for each of the standard leads to show how the morphology of the ECG wave-
forms characteristically appears in each of these 12 different views of the cardiac electrical
activity. Ljuba Bacharova added her enthusiasm of studying left-ventricular hypertrophy to
Chapter 5 (“Chamber Enlargement”). There have been extensive revisions of the four chap-
ters on myocardial ischemia and infarction (Chapters 9 to 12) because of the many recent
advances in understanding their electrocardiographic manifestations. A broad spectrum of
health care providers are being challenged to learn the ECG interpretive skills required for
rapid prehospital diagnosis and management of patients with acute coronary syndrome.
The Marriott legacy is particularly strong in Section III (Abnormal Rhythms). Barney
Marriott and Galen Wagner worked extensively in the preparation for the 9th edition to
retain his methodical and innovative approach while including the more recent concepts.
In the 10th edition, Galen organized perspectives from clinical electrophysiologists into
a practical classification of the various tachyarrhythmias. In the 11th and 12th editions,
in-depth electrophysiologic principles were added to enhance understanding of the basic
pathophysiology. Ten-second rhythm strips from three simultaneously recorded ECG leads
are typically used for the illustrations. Chapter 23 (“Artificial Cardiac Pacemakers”) has
been extensively revised by Wesley (Ken) Haisty because of the current availability of a
wide variety of sophisticated devices.
Marcel Gilbert, an electrophysiologist at Laval University in Quebec, provided the
ECG illustrations for all of the chapters on tachyarrhythmias and contributed to rewrit-
ing Chapter 18 (“Reentrant Junctional Tachyarrhythmias”) and Chapter 19 (“Reentrant
Ventricular Tachyarrhythmias”).
Ken Haisty, an electrophysiologist at Wake Forest University in Winston-Salem,
and Tobin Lim share authorship with Galen Wagner of Chapter 23 (“Artificial Cardiac
Pacemakers”). It had become clear that advances in pacing had made the chapter in the
11th edition obsolete.
We coordinated our communication with LWW personnel, which included editorial sup-
port from Julie Goolsby (Acquisitions Editor) and Leanne Vandetty (Product Development
Editor), digital media support from Freddie Patane (Art Director, Media) and Mark Flanders
(Creative Media Director, BioMedia Communications), production support from Marian
Bellus (Production Project Manager) and Russ Hall (Executive Director, Absolute Service,
Inc.), and marketing support from Stephanie Manzo (Marketing Manager).
Our goal for the 12th edition is to continue to preserve the “spirit of Barney Marriott”
through the many changes in words and images. He had been a tough but most helpful
critic as Galen justified the maintenance of the title
Marriott’s Practical Electrocardiography
.
Barney passed away during the time of production of the 11th edition, so this is the first
edition without his own unique input. However, his long-time Tampa colleague Douglas
Schocken provides his warm personal tribute to Barney in the foreword to this 12th edition,
and “Dr. Marriott’s Systematic Approach to the Diagnosis of Arrhythmias” remains the
final chapter.
Galen S. Wagner and David G. Strauss
Durham, North Carolina, and Washington, District of Columbia
