2023
Atrial fibrosis by cardiac MRI is a correlate for atrial stiffness in patients with atrial fibrillation
Lamy J, Taoutel R, Chamoun R, Akar J, Niederer S, Mojibian H, Huber S, Baldassarre L, Meadows J, Peters D. Atrial fibrosis by cardiac MRI is a correlate for atrial stiffness in patients with atrial fibrillation. The International Journal Of Cardiovascular Imaging 2023, 40: 107-117. PMID: 37857929, PMCID: PMC11378145, DOI: 10.1007/s10554-023-02968-x.Peer-Reviewed Original ResearchConceptsLate gadolinium enhancementLA reservoir strainLeft atrial pressureLA volumeReservoir strainLA fibrosisLA strainStiffness indexLA late gadolinium enhancementAtrial stiffness indexMaximal LA volumeAtrial fibrillation cohortLA minimum volumeAtrial tissue fibrosisMaximum LA volumeCardiac MR examsAtrial stiffnessAtrial strainAF ablationAtrial pressureAF cohortAtrial fibrillationAtrial fibrosisPatient subgroupsLGE volume
2018
Acute Left Ventricular Unloading Reduces Atrial Stretch and Inhibits Atrial Arrhythmias
Ishikawa K, Watanabe S, Lee P, Akar FG, Lee A, Bikou O, Fish K, Kho C, Hajjar RJ. Acute Left Ventricular Unloading Reduces Atrial Stretch and Inhibits Atrial Arrhythmias. Journal Of The American College Of Cardiology 2018, 72: 738-750. PMID: 30092950, PMCID: PMC6160394, DOI: 10.1016/j.jacc.2018.05.059.Peer-Reviewed Original ResearchConceptsLV end-diastolic pressureEnd-diastolic pressureLV unloadingMyocardial infarctionSubacute myocardial infarctionPressure-volume loopsLA pressureAortic regurgitationRyanodine receptor phosphorylationLA tissuesLV loadingReduced LV ejection fractionAtrial arrhythmia inducibilityLV assist deviceLV ejection fractionMean LA pressureLeft ventricular performancePressure-volume catheterMaximum LA volumeLV loading conditionsReceptor phosphorylationMedian 55NOX2 levelsArrhythmia inducibilityAtrial stretch
2008
Left atrial function and scar after catheter ablation of atrial fibrillation
Wylie JV, Peters DC, Essebag V, Manning WJ, Josephson ME, Hauser TH. Left atrial function and scar after catheter ablation of atrial fibrillation. Heart Rhythm 2008, 5: 656-662. PMID: 18452866, DOI: 10.1016/j.hrthm.2008.02.008.Peer-Reviewed Original ResearchConceptsAtrial systolic functionLA ejection fractionAtrial fibrillationCatheter ablationEjection fractionRadiofrequency ablationLeft atriumAF ablationSystolic functionLA functionCircumferential pulmonary vein isolationMaximum RA volumeRA ejection fractionCardiovascular magnetic resonance imagingPulmonary vein isolationLA scarPersistent atrial fibrillationMaximum LA volumeCine CMR imagingScar volumeMagnetic resonance imagingThromboembolic riskAtrial functionVein isolationConsecutive patients
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