2015
Relation of Elevated Heart Rate in Patients With Heart Failure With Reduced Ejection Fraction to One-Year Outcomes and Costs
DeVore AD, Schulte PJ, Mentz RJ, Hardy NC, Kelly JP, Velazquez EJ, Maya JF, Kielhorn A, Patel HK, Reed SD, Hernandez AF. Relation of Elevated Heart Rate in Patients With Heart Failure With Reduced Ejection Fraction to One-Year Outcomes and Costs. The American Journal Of Cardiology 2015, 117: 946-951. PMID: 26805662, PMCID: PMC5429586, DOI: 10.1016/j.amjcard.2015.12.031.Peer-Reviewed Original ResearchConceptsBeats/minReduced ejection fractionElevated heart rateHeart rateHeart failureEjection fractionΒ-blockersMedical costsHospital cost accounting dataLarge tertiary care centerMortality/hospitalizationTertiary care centerOne-year outcomesDirect medical costsNational death recordsRoutine clinical practiceMedian heart rateProportional hazards modelDuke University HospitalHeart rate assessmentElectronic medical recordsCause mortalityEligible patientsMultivariate adjustmentAtrial fibrillation
2008
Measuring left ventricular mechanical dyssynchrony from ECG-gated SPECT myocardial perfusion imaging.
Chen J, Garcia EV, Henneman MM, Bax JJ, Boogers MJ, Trimble MA, Borges-Neto S, Velazquez EJ, Iskandrian AE. Measuring left ventricular mechanical dyssynchrony from ECG-gated SPECT myocardial perfusion imaging. Minerva Cardioangiologica 2008, 56: 227-35. PMID: 18319701.Peer-Reviewed Original ResearchConceptsCardiac resynchronization therapyTissue Doppler imagingMyocardial perfusion imagingLV dyssynchronyECG-gated SPECT myocardial perfusion imagingPerfusion imagingCardiac resynchronization therapy (CRT) trialsMyocardial strain-rate imagingTomography myocardial perfusion imagingClinical validationAvailable echocardiographic techniquesSPECT myocardial perfusion imagingSevere heart failureVentricular mechanical dyssynchronyPredictors of responseRoutine clinical practiceStrain rate imagingSingle photon emissionEntire left ventricleHeart failureMechanical dyssynchronyResynchronization therapyEchocardiographic techniquesDyssynchronyClinical practice