2011
Deciphering Arrhythmia Mechanisms: Tools of the Trade
Salama G, Akar FG. Deciphering Arrhythmia Mechanisms: Tools of the Trade. Cardiac Electrophysiology Clinics 2011, 3: 11-21. PMID: 21572551, PMCID: PMC3093299, DOI: 10.1016/j.ccep.2010.10.013.Peer-Reviewed Original ResearchArrhythmia mechanismsIschemia-reperfusion injuryCalcium handling propertiesLong QT syndromeMultiple cardiovascular disordersHeart failureCardiac functionCardiovascular disordersQT syndromeComplex arrhythmiasAction potentialsOptical action potentialsPathophysiological remodelingTissue levelsOrgan system levelRepolarization gradientsArrhythmiasSub-cellular changesSyndromeInjuryLevels
2010
Left ventricular repolarization heterogeneity as an arrhythmic substrate in heart failure.
Akar FG. Left ventricular repolarization heterogeneity as an arrhythmic substrate in heart failure. Minerva Cardioangiologica 2010, 58: 205-12. PMID: 20440250.ChaptersConceptsHeart failureElectrophysiological substrateSudden cardiac deathCalcium handling proteinsRepolarization gradientsVentricular repolarization heterogeneityHeterogeneous remodelingCardiac deathCardiac functionArrhythmic substrateLeft ventriculeHandling proteinsMuscle layerPathophysiological remodelingRepolarization heterogeneityTissue levelsOrgan system levelArrhythmiasGap junctionsIon channelsOverview of mechanismsSub-cellular changesRemodelingFailureVentricule
1998
Modulated Dispersion Explains Changes in Arrhythmia Vulnerability During Premature Stimulation of the Heart
Laurita K, Girouard S, Akar F, Rosenbaum D. Modulated Dispersion Explains Changes in Arrhythmia Vulnerability During Premature Stimulation of the Heart. Circulation 1998, 98: 2774-2780. PMID: 9851966, DOI: 10.1161/01.cir.98.24.2774.Peer-Reviewed Original ResearchConceptsVentricular fibrillation thresholdSingle premature stimulusPremature stimuliArrhythmia vulnerabilityBaseline levelsPremature stimulationS1S2 intervalRepolarization gradientsGuinea pig heartsBaseline pacingFibrillation thresholdArrhythmogenic substrateVentricular fibrillationVentricular sitesStimulus-induced changesVentricular repolarizationCoupling intervalCardiac arrhythmiasS2 beatElectrophysiological propertiesAction potentialsOptical action potentialsHeterogeneous electrophysiological propertiesPig heartsRepolarization