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July 7, 2014Annals of Noninvasive ElectrocardiologyOpen Access

Characteristics of the Electrocardiogram in Patients with Continuous-Flow Left Ventricular Assist Devices

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Why the study?

Does LVAD implantation alter ECG characteristics in patients with advanced congestive heart failure?

Population

143 patients, including 43 with advanced congestive heart failure pre- and post-implantation of a HeartMate…

Comparison

HeartMate II left ventricular assist device… vs Pre-implantation ECGs and non-LVAD patient ECGs

Design

Cohort

Authors

SMSara C. MartinezUniversity of CaldasDFDerrick R. FanslerWashington University in St. LouisJLJeffrey LauDuke-NUS Medical School

Discussion

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Implication

ECG interpretation in LVAD patients warrants attention to artifact and low voltage; extends prior descriptions but leaves diagnostic performance untested.

Structured PICO

Does LVAD implantation alter ECG characteristics in patients with advanced congestive heart failure?

P
Population
143 patients, including 43 with advanced congestive heart failure pre- and post-implantation of a HeartMate II LVAD, 50 non-LVAD patients with lateral myocardial infarction, and 50 non-LVAD patients with ventricular pacing.
I
Intervention
HeartMate II left ventricular assist device (LVAD) implantation
C
Comparator
Pre-implantation ECGs and non-LVAD patient ECGs
O
Outcome
Presence of LVADS2 criteria on ECG (low limb-lead voltage, ventricular pacing, electrical artifact, QRS > 120 milliseconds, ST-elevation in lateral leads, and splintering of the QRS complex)surrogate

LVAD implantation significantly alters the ECG, establishing a new baseline characterized by electrical artifact, low limb-lead voltage, ventricular pacing, lateral ST-elevation, and QRS splintering.

Cite This Study

Martinez et al. (2014) studied this question.

synapsesocial.com/papers/6a8344fe85d091feed18f50fhttps://doi.org/10.1111/anec.12181

Topics

Mechanical circulatory supportHeart failureHFrEF treatment
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Usefulness of the 12-lead electrocardiogram in the follow-up of patients with cardiac resynchronization devices. Part I2011 · 43 citations
  2. 2The Value of the Electrocardiogram and Chest X-ray for Confirming or Refuting a Suspected Diagnosis of Heart Failure in the Community2004 · 58 citations
  3. 3The Effect of Cardiac Resynchronization on Morbidity and Mortality in Heart Failure2005 · 6,311 citations
  4. 4Biventricular Pacing for Atrioventricular Block and Systolic Dysfunction2013 · 861 citations
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