Heart Rhythm Society 2007

 

 

Presentation

Authors

Session

 

1.

(PO3-72) SPATIAL CORRELATION OF EPICARDIAL AND ENDOCARDIAL ACTION POTENTIAL DURATION ALTERNANS WITH BODY SURFACE T WAVE ALTERNANS:
A SIMULATION STUDY

Raja J. Selvaraj, MD and Vijay S. Chauhan, MD, FRCP. University Health Network, Toronto, ON, Canada

Poster Session
Poster Session III

2.

(AB27-3) Calsequestrin-Mediated Mechanism of Calcium Transient Alternans without Sarcoplasmic Reticulum Content Alternans

Juan G. Restrepo, PhD, Alain Karma, PhD and James N. Weiss, PhD. Northeastern University, Boston, MA, Departments of Medicine (Cardiology) and Physiology, David Geffen School of Medicine at UCLA, Los Angeles, CA

Oral Abstract Session
Mechanisms of Cardiac Alternans in Health and Disease

3.

The Link between Cellular Alternans, T-Wave Alternans, and Arrhythmogenesis

David S. Rosenbaum, MD, FHRS, Case Western Reserve University, Cleveland, OH.

Core Curriculum
T-Wave Alternans: Mechanisms and Implications to Clinical Practice

4.

(AB27-5) Electrical Restitution and Alternans of Monophasic Action Potentials in Patients with and Without Systolic Dysfunction

Jason Kim, BS, Gautam Lalani, MD, Ashwani Sastry, MD, Michael R. Franz, MD, PhD and Sanjiv M. Narayan, MD, PhD. University of California and VA Medical Center, San Diego, CA, Cornell University, New York, NY, VA Medical Center, Washington, DC

Oral Abstract Session
Mechanisms of Cardiac Alternans in Health and Disease

5.

(AB2-1) Sarcoplasmic Reticulum Calcium ATPase Overexpression Abolishes Calcium Alternans in Ventricular Myocyte Monolayers.

Ramy L. Hanna, MD, PhD, Carlos De Diego, MD, Christine Rongey, BS, Frederica Del Monte, PhD, Lai-Hua Xie, PhD and James N.. Weiss, MD. UCLA, Los Angeles, CA

Oral Abstract Session
Cell Physiology, Pharmacology and Signaling

6.

(AB27-6) Action Potential Alternans as a Preclinical Marker of Drug-Induced Proarrhythmia

Tamer H. Said, MD, Lance D. Wilson, MD, Xiaoping Wan, MD, PhD, Anthony Fossa, PhD and David S. Rosenbaum, MD. MetroHealth Campus, Case Western Reserve University, Cleveland, OH, Pfizer Global Research and Development, Groton, CT

Oral Abstract Session
Mechanisms of Cardiac Alternans in Health and Disease

7.

What is the Source of Cardiac Alternans?

David A. Eisner, PhD, University of Manchester, Manchester, United Kingdom.

Core Curriculum
T-Wave Alternans: Mechanisms and Implications to Clinical Practice

8.

(PO3-78) Is Microvolt T-Wave Alternans a universal marker for prediction of cardiac events after acute MI ?

Artur T. Filipecki, MD, PhD, Krystian Wita, MD, PhD, Zbigniew Tabor, MD, Jaroslaw Myszor, MD, PhD, Maciej Turski, MD, Jan Szczogiel, MD and Maria Trusz-Gluza, MD, PhD. I Department of Cardiology, Silesian Medical University, Katowice, Poland, I Dep. of Cardiology, Silesian Medical University, Katowice, Poland

Poster Session
Poster Session III

9.

(AB27-4) Fibroblasts Potentiate Cardiac Alternans and Conduction Block: A Simulation Study

Yuanfang Xie, PhD, Alan Garfinkel, PhD, James N Weiss, MD and Zhilin Qu, PhD. UCLA, Los Angeles, CA

Oral Abstract Session
Mechanisms of Cardiac Alternans in Health and Disease

10.

(PO3-75) Absence of Correlation between Microvolt T-Wave Alternans by Spectral Analysis and Newly Developed Ambulatory Electrocardiogram-Based T-Wave Alternans by Time-Domain Analysis

Katsura Sakaki, MD, Hideaki Yoshino, MD, Yosuke Miwa, MD, Mutsumi Miyakoshi, MD, Haruhisa Ishiguro, MD, Takehiro Tsukada, MD, Atsuko Abe, MD, Hisaaki Mera, MD, Kentaro Nakamura, MD, Satoru Yusu, MD and Takanori Ikeda, MD. Kyorin University, Tokyo, Japan

Poster Session
Poster Session III

 

 

 

 

 

11.

(AB43-1) Steep APD Restitution Curve is not essential for Microvolt T-Wave Alternans: Insights from Computer Simulations

Takashi Ashihara, MD, PhD, Takenori Yao, MD, PhD, Makoto Ito, MD, PhD, Minoru Horie, MD, PhD, Tsunetoyo Namba, MD, PhD, Ryo Haraguchi, PhD, Kazuo Nakazawa, PhD, Takanori Ikeda, MD, PhD and Natalia A. Trayanova, PhD. Shiga University of Medical Science, Otsu, Japan, Japanese Working Group on Cardiac Simulation and Mapping, Tokyo, Japan, Johns Hopkins University, Baltimore, MD

Oral Abstract Session
Risk Stratification for Sudden Death

 

12.

(PO2-48)
Dispersion of Refractoriness with Action Potential Alternans and Catecholamine Sensitivity with Enhanced Triggered Activity Lead to Lethal Ventricular Arrhythmias in the LQT8 (Timothy) Syndrome

Ruey J. Sung, MD, Han-Dong Chang, MD, Chia-Tso Tsai, BS and and Shen-Nan Wu, MD, PhD. Stanford University School of Medicine, Stanford, CA, Depatment of Basic Medicine, College of Medicine, National Cheng Kung University, tainan, Taiwan, National Cheng Kung University, Tainan, Taiwan, Department of Physiology College of Medicine, National Cheng Kung University, Tainan, Taiwan, Depatment of Basic Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan

Poster Session
Poster Session II

 

13.

(AB27-2) Cellular Mechanism for Susceptibility to Arrhythmogenic Alternans in Heart Failure

Lance D. Wilson, MD, Tamer H. Said, MD, Darwin Jeyaraj, MD, Xiaoping Wan, MD, PhD, Gregory S. Hoeker, BS, Haiyan Lui, MD, Isabelle Deschenes, PhD, Kenneth R. Laurita, PhD and David S. Rosenbaum, MD. MetroHealth Campus, Case Western Reserve University, Cleveland, OH

Oral Abstract Session
Mechanisms of Cardiac Alternans in Health and Disease

 

14.

(PO1-73) In Ischemic Cardiomyopathy with Moderately Reduced Ejection Fraction, QRS Duration Is More Effective for Risk Stratification than T-Wave Alternans

Daniel P. Morin, MD, MPH, Eran S. Zacks, MD, Andreas C. Mauer, MD, Matthew Janik, MD, Shaun Ageno, MD, Steven M. Markowitz, MD, Sei Iwai, MD, Bindi K. Shah, MD, Bruce B. Lerman, MD and Kenneth M. Stein, MD. Cornell University Medical Center, New York, NY

Poster Session
Featured Poster Session and Reception

 

15.

(PO1-74) COMPARISON OF MODIFIED MOVING AVERAGE AND SPECTRAL ANALYSIS FOR DETECTING MICROVOLT T WAVE ALTERNANS IN AMBULATORY ECG RECORDINGS

Raja J. Selvaraj, MD and Vijay S. Chauhan, MD, FRCP. University of Toronto, Toronto, ON, Canada, University Health Network, Toronto, ON, Canada

Poster Session
Featured Poster Session and Reception

 

16.

(AB43-4) T-wave Alternans and Electrophysiology Study Offer Additive Risk Stratification Information in Ischemic Cardiomyopathy

Daniel P. Morin, MD, MPH, Eran S. Zacks, MD, Andreas C. Mauer, MD, Shaun Ageno, MD, Matthew Janik, MD, Steven M. Markowitz, MD, Sei Iwai, MD, Bindi K. Shah, MD, Bruce B. Lerman, MD and Kenneth M. Stein, MD. Cornell University Medical Center, New York, NY

Oral Abstract Session
Risk Stratification for Sudden Death

 

17.

Chair

David S. Rosenbaum, MD, FHRS, Case Western Reserve University, Cleveland, OH.

Core Curriculum
T-Wave Alternans: Mechanisms and Implications to Clinical Practice

 

18.

Chair

Vladimir Shusterman, MD, PhD, University of Pittsburgh, Pittsburgh, PA.

Core Curriculum
T-Wave Alternans: Mechanisms and Implications to Clinical Practice

 

19.

Evidence Supporting TWA as a Marker of Sudden Cardiac Death in Patients

Theodore Chow, MD, Ohio Heart and Vascular Center, Cincinnati, OH.

Core Curriculum
T-Wave Alternans: Mechanisms and Implications to Clinical Practice

 

20.

Use of TWA in Primary Prevention of Sudden Cardiac Death: Lessons from the ABCD Trial

Ottorino Costantini, MD, MetroHealth Campus/Case Western Reserve University, Cleveland, OH.

Core Curriculum
T-Wave Alternans: Mechanisms and Implications to Clinical Practice

 

 

 

21.

Chair

Robert F. Gilmour, Jr., PhD, Cornell University, Ithaca, NY.

Oral Abstract Session
Mechanisms of Cardiac Alternans in Health and Disease

 

22.

Chair

Sanjiv M. Narayan, MD, PhD, University of California, San Diego VA Medical Center, San Diego, CA.

Oral Abstract Session
Mechanisms of Cardiac Alternans in Health and Disease

 

23.

Structural Origin of Arrhythmogenic Discordant Alternans

David S. Rosenbaum, MD, FHRS, Case Western Reserve University, Cleveland, OH.

Core Curriculum
Role of Cardiac Structure in Arrhythmogenesis

 

24.

Restitution and Alternans in Humans: Insights from Monophasic Action Potential Recordings

Robert F. Gilmour, Jr., PhD, Cornell University, Ithaca, NY.

Core Curriculum
Human Ventricular Restitution Properties and Fibrillation

 

25.

Restitution and Alternans in Humans: Insights from Epicardial Mapping Studies

Peter Taggart, MD, The Hatter Cardiovascular Institute, London, United Kingdom.

Core Curriculum
Human Ventricular Restitution Properties and Fibrillation

 

26.

(AB43-2) Myocardial Scar Detected by Contrast-Enhanced Magnetic Resonance Imaging and Electrophysiological Risk-Stratification Markers in Patients with Nonischemic Cardiomyopathy

Kentaro Nakamura, MD, Hideaki Yoshino, MD, Satoru Yusu, MD, Yosuke Miwa, MD, Katsura Sakaki, MD, Mustumi Miyakoshi, MD, Haruhisa Ishiguro, MD, Takehiro Tsukada, MD, Atsuko Abe, MD, Hisaaki Mera, MD, Konomi Sakata, MD and Takanori Ikeda, MD. Kyorin University, Tokyo, Japan

Oral Abstract Session
Risk Stratification for Sudden Death

 

27.

(AB43-6) High Amplitude T-wave Alternans Precedes Spontaneous Ventricular Tachyarrhythmias in Humans

Olga Voroshilovsky, MD, Xiaohong Zhou, MD, Jeffrey Gillberg, MS and Charles Swerdlow, MD. Cedars-Sinai Medical Center, Los Angeles, CA

Oral Abstract Session
Risk Stratification for Sudden Death

 

28.

(PO6-118) Myocardial Ischemia and Heart Failure Promote Intracardiac Microvolt T-wave Alternans that Increases in Magnitude Prior to Ventricular Arrhythmias in Canines

John C. Lopshire, MD, PhD, Xiaohong Zhou, MD, Joseph Hensley, BS, Joshua Rosenberger, BS, Cristian Dusa, MD, Thomas Mullen, PhD, Michael Ulhelyi, PharmD, Douglas Zipes, MD and Mithilesh Das, MD. Krannert Institute of Cardiology, Indianapolis, IN, Medtronic, Inc, Minneapolis, MN

Poster Session
Poster Session VI

 

29.

(AB27-1)
Spontaneous Ventricular Fibrillation Triggered in Aged Hearts Subjected to Oxidative Stress

Norishige Morita, MD, Norihiko Ono, MD, Hideki Hayashi, MD, Masahiro Ogawa, MD, Shien-Fong Lin, PhD, Peng-Sheng Chen, MD, James N. Weiss, MD and Hrayr S. Karagueuzian, PhD. Division of Cardiology, Department of Medicine Cedars-Sinai Medical Center, Los Angeles, CA, Department of Medicine (Cardiology) and Physiology, David Geffen School of Medicine at UCLA, Los Angeles, CA

Oral Abstract Session
Mechanisms of Cardiac Alternans in Health and Disease

 

30.

(AB43-5) Noninvasive Assessment of Sudden Death Risk After Myocardial Infarction - Results of the REFINE Study.

Derek V. Exner, MD, MPH, Katherine M. Kavanagh, MD, Darlene Ramadan, RN, BSN, Sandeep G. Aggarwal, MD, Catherine Noulett, RN, Michael P. Slawnych, MD, PhD, Allie Van Schaik, RN, L. Brent. Mitchell, MD, Sajad Gulamhusein, MD, Henry J. Duff, MD, on behalf of the Risk Estimation Following Infarction, Noninvasive Evaluation (REFINE) Investigators. Libin Cardiovascular Institute of Alberta, Calgary, AB, Canada, University of Alberta, Edmonton, AB, Canada

Oral Abstract Session
Risk Stratification for Sudden Death