2020
Implications of Abnormal Exercise Electrocardiography With Normal Stress Echocardiography
Daubert MA, Sivak J, Dunning A, Douglas PS, Coyne B, Wang TY, Mark DB, Velazquez EJ. Implications of Abnormal Exercise Electrocardiography With Normal Stress Echocardiography. JAMA Internal Medicine 2020, 180: 494-502. PMID: 31985749, PMCID: PMC6990669, DOI: 10.1001/jamainternmed.2019.6958.Peer-Reviewed Original ResearchConceptsNormal stress echocardiographyComposite end pointStress echoExercise electrocardiographyStress echocardiographyMyocardial infarctionDownstream testingEnd pointDuke University Medical CenterExercise stress echoNegative exercise ECGStress ECG findingsAdverse cardiac eventsIncremental prognostic valueObservational cohort studyAdverse clinical eventsCoronary artery diseaseIndividual adverse eventsPopulation of patientsUniversity Medical CenterImaging resultsCoronary revascularizationAdverse eventsCardiac eventsCohort study
2019
High-Density Lipoprotein Particle Subfractions in Heart Failure With Preserved or Reduced Ejection Fraction
Hunter WG, McGarrah RW, Kelly JP, Khouri MG, Craig DM, Haynes C, Felker GM, Hernandez AF, Velazquez EJ, Kraus WE, Shah SH. High-Density Lipoprotein Particle Subfractions in Heart Failure With Preserved or Reduced Ejection Fraction. Journal Of The American College Of Cardiology 2019, 73: 177-186. PMID: 30654890, DOI: 10.1016/j.jacc.2018.10.059.Peer-Reviewed Original ResearchConceptsLipoprotein particle subfractionsHeart failureEjection fractionTotal HDLSmall HDLMajor adverse cardiac eventsVentricular end-diastolic pressureHDL-P sizeAdverse cardiac eventsReduced ejection fractionEnd-diastolic pressureCox proportional hazardsStrict inclusion criteriaCATHGEN biorepositoryDiastolic dysfunctionAdverse eventsCardiac eventsSequential patientsCardiac catheterizationEndothelial functionMultivariable analysisPrognostic utilityAdverse outcomesClinical covariatesHFpEF
2013
Effect of Escitalopram on Mental Stress–Induced Myocardial Ischemia: Results of the REMIT Trial
Jiang W, Velazquez EJ, Kuchibhatla M, Samad Z, Boyle SH, Kuhn C, Becker RC, Ortel TL, Williams RB, Rogers JG, O’Connor C. Effect of Escitalopram on Mental Stress–Induced Myocardial Ischemia: Results of the REMIT Trial. JAMA 2013, 309: 2139-2149. PMID: 23695483, PMCID: PMC4378823, DOI: 10.1001/jama.2013.5566.Peer-Reviewed Original ResearchConceptsMental stress-induced myocardial ischemiaStable coronary heart diseaseExercise-induced ischemiaCoronary heart diseaseMyocardial ischemiaHeart diseaseVentricular ejection fraction reductionStress-induced myocardial ischemiaMental stressRegional wall motion abnormalitiesEjection fraction reductionPlacebo-controlled trialST-segment depressionEffect of escitalopramTertiary medical centerWall motion abnormalitiesWeeks of escitalopramSignificant differencesEnd-point assessmentStressor taskEscitalopram groupCardiac eventsEscitalopram treatmentMore patientsTreat analysis
2012
Race and gender variation in the QT interval and its association with mortality in patients with coronary artery disease: Results from the Duke Databank for Cardiovascular Disease (DDCD)
Williams ES, Thomas KL, Broderick S, Shaw LK, Velazquez EJ, Al-Khatib SM, Daubert JP. Race and gender variation in the QT interval and its association with mortality in patients with coronary artery disease: Results from the Duke Databank for Cardiovascular Disease (DDCD). American Heart Journal 2012, 164: 434-441. PMID: 22980312, DOI: 10.1016/j.ahj.2012.05.024.Peer-Reviewed Original ResearchConceptsCoronary artery diseaseCause mortalityArtery diseaseProlonged QTcRisk factorsQT intervalMortality riskLow glomerular filtration rateHigher diastolic blood pressureNative coronary artery stenosisCardiac risk factorsLow ejection fractionDiastolic blood pressureGlomerular filtration rateCoronary artery stenosisRisk of deathCardiac catheterizationCardiac eventsDuke DatabankBlood pressureEjection fractionQTc intervalQTc prolongationArtery stenosisBaseline electrocardiogram
2011
Utility of a Simple Algorithm to Grade Diastolic Dysfunction and Predict Outcome After Coronary Artery Bypass Graft Surgery
Swaminathan M, Nicoara A, Phillips-Bute BG, Aeschlimann N, Milano CA, Mackensen GB, Podgoreanu MV, Velazquez EJ, Stafford-Smith M, Mathew JP, Group C. Utility of a Simple Algorithm to Grade Diastolic Dysfunction and Predict Outcome After Coronary Artery Bypass Graft Surgery. The Annals Of Thoracic Surgery 2011, 91: 1844-1850. PMID: 21492828, DOI: 10.1016/j.athoracsur.2011.02.008.Peer-Reviewed Original ResearchConceptsLeft ventricular diastolic dysfunctionMajor adverse cardiac eventsCoronary artery bypass graft surgeryArtery bypass graft surgeryBypass graft surgeryDiastolic dysfunctionGraft surgeryLong-term major adverse cardiac eventsCoronary artery bypass graft patientsMitral annular tissue velocityEarly flow velocityAdverse cardiac eventsVentricular diastolic dysfunctionBypass graft patientsLVDD gradeMedian followGraft patientsCardiac eventsEchocardiographic variablesCardiac surgeryCox modelingMore patientsPredicts outcomeTissue DopplerHigh incidence
2010
Does Myocardial Perfusion Imaging Provide Incremental Prognostic Information to Left Ventricular Ejection Fraction?
Mudrick DW, Velazquez E, Borges-Neto S. Does Myocardial Perfusion Imaging Provide Incremental Prognostic Information to Left Ventricular Ejection Fraction? Current Cardiology Reports 2010, 12: 155-161. PMID: 20425171, DOI: 10.1007/s11886-010-0093-x.Peer-Reviewed Original ResearchMeSH KeywordsCardiac-Gated Single-Photon Emission Computer-Assisted TomographyCoronary Artery DiseaseDeath, Sudden, CardiacHumansMass ScreeningMyocardial Perfusion ImagingPositron-Emission TomographyPredictive Value of TestsPrognosisRisk AssessmentSensitivity and SpecificityStroke VolumeVentricular Function, LeftConceptsEjection fractionVentricular functionNonfatal cardiac eventsGated single-photon emissionIncremental prognostic informationSignificant coronary diseaseVentricular ejection fractionCoronary artery diseaseOptimal treatment strategySudden cardiac deathNuclear imaging studiesImportant clinical implicationsMyocardial perfusion imagingPositron emission tomographySingle photon emissionIschemic burdenCardiac eventsArtery diseaseCardiac deathCoronary diseasePrognostic informationTreatment strategiesMyocardial perfusionPerfusion imagingBest predictor