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The Lead Episode 66: Class 1C Antiarrhythmics for Premature Ventricular Complex Suppression in Nonischemic Cardiomyopathy with Implantable Cardioverter-Defibrillators

William H. Sauer, MD, FHRS, CCDS, Brigham and Women's Hospital is joined by Edward P. Gerstenfeld, MD, MS, FHRS, University of California, San Francisco, and Yasser Rodriguez, MBA, MD, Cleveland Clinic Florida to discuss;

Background: Premature ventricular complexes (PVCs) are common and associated with worse outcomes in patients with heart failure. Class 1C antiarrhythmic drugs (AADs) effectively suppress PVCs, but guidelines currently restrict their use in structural heart disease.
Conclusions: Class 1C AADs effectively suppressed PVCs in patients with NICM and ICDs, leading to increases in LVEF and biventricular pacing percentage. In this limited sample, their use was safe. Larger studies are needed to confirm the safety of this approach.
Learning Objectives
  • To understand the results and limitations of the discussed paper entitled: "Class 1C Antiarrhythmics for Premature Ventricular Complex Suppression in Nonischemic Cardiomyopathy With Implantable Cardioverter-Defibrillators" 
Article Authors and Podcast Contributors
Article Authors

Mohamad Raad, MD, Haran Yogasundaram, MD, Justice Oranefo, MD, Gustavo Guandalini, MD, Timothy Markman, MD, Matthew Hyman, MD, PHD, Robert Schaller, DO, Gregory Supple, MD, Rajat Deo, MD, Saman Nazarian, MD, Michael Riley, MD, PHD, David Lin, MD, Fermin Garcia, MD, Sanjay Dixit, MD, Andrew E. Epstein, MD, David Callans, MD, Francis E. Marchlinski, MD, David S. Frankel, MD

Podcast Contributors

William H. Sauer, MD, FHRS, CCDS, Brigham and Women's Hospital
Edward P. Gerstenfeld, MD, MS, FHRS, University of California, San Francisco
Yasser Rodriguez, MBA, MD, Cleveland Clinic Florida

Disclosure Policy

ACE Disclosure Policy

The Heart Rhythm Society is committed to the provision of Accredited Continuing Education (formerly known as Continuing Medical Education (CME)) that is balanced, objective, and evidence based. HRS adheres to the Standards for Integrity and Independence in Accredited Continuing Education of the Accreditation Council for Continuing Medical Education (ACCME) which require that those individuals in a position to control the content of an educational activity (including, but not limited to, planners, faculty, authors, committee members, content reviewers, editors, and staff) disclose all financial relationships with an ACCME-defined ineligible company* within the 24 months prior to the disclosure.


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All relevant financial relationships have been mitigated.

Host Disclosure(s):

W. Sauer: Honoraria/Speaking/Consulting: Biotronik, Biosense Webster, Inc., Abbott, Boston Scientific, Research: Medtronic

Contributor Disclosure(s):
E. Gerstenfeld: Honoraria/Speaking/Teaching: Abbott, Biosense Webster, Inc., Boston Scientific, Medtronic, Membership on Committees/Advisory Boards: Boston Scientific, Farapulse, Honoraria/Speaking/Consulting: Boston Scientific, Abbott Medical, Medtronic, Adagio Medical, Research: Boston Scientific
Y. Rodriguez: Nothing to disclose. 

Staff Disclosure(s) (note: HRS staff are NOT in control of educational content. Disclosures are provided solely for full transparency to the learner):
S. Sailor: No relevant financial relationships with ineligible companies to disclose.
S. Colbert: No relevant financial relationships with ineligible companies to disclose.
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The Heart Rhythm Society designates this internet-enduring activity for a maximum of .25 AMA PRA Category 1 Credits™. Physicians should claim only the credit commensurate with the extent of their participation in the activity.

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Successful completion of this ACE activity, which includes participation in the evaluation component, enables the participant to earn up to .25 MOC points in the American Board of Internal Medicine's (ABIM) Maintenance of Certification (MOC) program. Participants will earn MOC points equivalent to the amount of ACE credits claimed for the activity. It is the ACE activity provider's responsibility to submit participant completion information to ACCME for the purpose of granting ABIM MOC credit.

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Through an agreement between the Accreditation Council for Continuing Medical Education and the Royal College of Physicians and Surgeons of Canada, medical practitioners participating in the Royal College MOC Program may record completion of accredited activities registered under the ACCME’s “ACE in Support of MOC” program in Section 3 of the Royal College’s MOC Program.

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A Credit Certificate (for physicians) or Certificate of Participation (for non-physicians) will be provided to individuals seeking credit from the following organizations which accept AMA PRA Category 1 Credit(s)™. Note that participants are advised to contact their certifying body for specific information regarding credit submissions:
·         American Academy of Family Physicians (AAFP) (for elective credit)
·         American Academy of Nurse Practitioners Certification Board (AANPCB)
·         American Academy of Physician Assistants (AAPA)
·         American Nurses Credentialing Center (ANCC)
·         American Osteopathic Association (AOA) (for Category 2 credit)
·         Committee on Accreditation of Continuing Medical Education (Canada)
·         European Board for Accreditation in Cardiology (EBAC)
·         European CME Credits (ECMEC)
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·         Oman Medical Specialty Board
·         Qatar Council for Healthcare Practitioners
·         Royal College of Physicians and Surgeons of Canada (RCPSC)

Availability: On-Demand
Cost: FREE
Credit Offered:
0.25 ACE Credit
0.25 COP Credit
0.25 ABIM-MOC Point
0.25 ABP-MOC Point
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