2019
Echocardiographic Assessment of Right Ventricular Function and Response to Therapy in Pulmonary Arterial Hypertension
Shelburne NJ, Parikh KS, Chiswell K, Shaw LK, Sivak J, Arges K, Tomfohr J, Velazquez EJ, Kisslo J, Samad Z, Rajagopal S. Echocardiographic Assessment of Right Ventricular Function and Response to Therapy in Pulmonary Arterial Hypertension. The American Journal Of Cardiology 2019, 124: 1298-1304. PMID: 31481176, DOI: 10.1016/j.amjcard.2019.07.026.Peer-Reviewed Original ResearchMeSH KeywordsAdolescentAdultAgedAntihypertensive AgentsEchocardiographyExercise TestFemaleFollow-Up StudiesHeart VentriclesHumansMaleMiddle AgedNorth CarolinaPrognosisPulmonary Arterial HypertensionRetrospective StudiesSeverity of Illness IndexStroke VolumeSurvival RateVentricular Function, RightYoung AdultConceptsTricuspid annular plane systolic excursionPulmonary arterial hypertensionRV global longitudinal strainRV systolic pressureRight ventricular functionGlobal longitudinal strainArterial hypertensionSystolic pressureVentricular functionSevere pulmonary arterial hypertensionAnnular plane systolic excursionLongitudinal strainPAH-specific therapyManagement of patientsRight atrial areaMid-RVPAH therapyCause mortalityEchocardiographic parametersClinical responseEchocardiographic variablesSystolic excursionWalk distanceEchocardiographic assessmentAtrial areaHigh-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
2017
Prevalence and Outcomes of Left‐Sided Valvular Heart Disease Associated With Chronic Kidney Disease
Samad Z, Sivak JA, Phelan M, Schulte PJ, Patel U, Velazquez EJ. Prevalence and Outcomes of Left‐Sided Valvular Heart Disease Associated With Chronic Kidney Disease. Journal Of The American Heart Association 2017, 6: e006044. PMID: 29021274, PMCID: PMC5721834, DOI: 10.1161/jaha.117.006044.Peer-Reviewed Original ResearchMeSH KeywordsAdultAge FactorsAgedAged, 80 and overAortic ValveAortic Valve StenosisComorbidityDatabases, FactualEchocardiographyFemaleGlomerular Filtration RateHumansKaplan-Meier EstimateKidneyMaleMiddle AgedMitral ValveMitral Valve InsufficiencyNorth CarolinaPrevalencePrognosisProportional Hazards ModelsRenal Insufficiency, ChronicRetrospective StudiesRisk FactorsSeverity of Illness IndexSex FactorsTime FactorsConceptsChronic kidney diseaseFive-year survival estimatesNon-CKD patientsCKD patientsMitral regurgitationMR severityKidney diseaseSurvival estimatesCoronary artery bypassGlomerular filtration ratePercutaneous coronary interventionSevere mitral regurgitationValvular heart diseaseSerum creatinine valuesAdverse prognostic markerRegurgitant valve lesionsIndex echocardiogramSevere ASArtery bypassIntervention patientsValve lesionsValve surgeryCoronary interventionHazard ratioHeart failureComparison of Incidence of Left Ventricular Systolic Dysfunction Among Patients With Left Bundle Branch Block Versus Those With Normal QRS Duration
Sze E, Dunning A, Loring Z, Atwater BD, Chiswell K, Daubert JP, Kisslo JA, Mark DB, Velazquez EJ, Samad Z. Comparison of Incidence of Left Ventricular Systolic Dysfunction Among Patients With Left Bundle Branch Block Versus Those With Normal QRS Duration. The American Journal Of Cardiology 2017, 120: 1990-1997. PMID: 28958452, DOI: 10.1016/j.amjcard.2017.08.003.Peer-Reviewed Original ResearchConceptsLeft ventricular systolic dysfunctionLeft bundle branch blockVentricular systolic dysfunctionBundle branch blockEjection fractionBaseline echocardiogramSystolic dysfunctionBranch blockQRS durationRisk factorsRelative riskLeft ventricular assist deviceNarrow QRS durationCohort of patientsNormal QRS durationFinal study cohortCommon risk factorsComparison of incidenceVentricular assist deviceHeart transplantStudy cohortLBBB patientsHigh incidencePatientsEchocardiogramComparison of Clinical Characteristics and Outcomes of Patients With Versus Without Diabetes Mellitus and With Versus Without Angina Pectoris (from the Duke Databank for Cardiovascular Disease)
Banks A, Broderick S, Chiswell K, Shaw L, Devore A, Fiuzat M, O'Connor C, Felker GM, Velazquez E, Mentz R. Comparison of Clinical Characteristics and Outcomes of Patients With Versus Without Diabetes Mellitus and With Versus Without Angina Pectoris (from the Duke Databank for Cardiovascular Disease). The American Journal Of Cardiology 2017, 119: 1703-1709. PMID: 28395884, DOI: 10.1016/j.amjcard.2017.02.053.Peer-Reviewed Original ResearchConceptsCoronary artery diseaseAngina pectorisDiabetes mellitusDM statusCause mortalityMultivariable Cox regressionOutcomes of patientsDifferent prognostic implicationsSeverity of diseaseAP statusCV hospitalizationClinical characteristicsArtery diseaseCoronary angiographyDM patientsClinical outcomesCox regressionPrognostic implicationsPrognostic utilityRevascularizationSimilar riskPatientsRisk adjustmentMortalityPectoris
2016
Pulmonary function and adverse cardiovascular outcomes: Can cardiac function explain the link?
Peña M, Dunning A, Schulte PJ, Durheim MT, Kussin P, Checkley W, Velazquez EJ. Pulmonary function and adverse cardiovascular outcomes: Can cardiac function explain the link? Respiratory Medicine 2016, 121: 4-12. PMID: 27888991, DOI: 10.1016/j.rmed.2016.10.009.Peer-Reviewed Original ResearchConceptsLeft ventricular ejection fractionAdverse cardiovascular eventsPulmonary functionCause mortalityCardiovascular eventsCardiac hospitalizationCardiac functionDecreased LVEFNormal left ventricular ejection fractionSingle tertiary care medical centerTertiary care medical centerCox proportional hazards modelLeft heart remodelingRight heart dysfunctionAdverse cardiovascular outcomesRight ventricular functionTertiary care centerVentricular ejection fractionVentricular internal dimensionLeft heart structuresLeft heart sizeProportional hazards modelMultivariable linear regressionDecreased FVCCardiovascular outcomes
2015
Torsemide Versus Furosemide in Heart Failure Patients
Mentz RJ, Buggey J, Fiuzat M, Ersbøll MK, Schulte PJ, DeVore AD, Eisenstein EL, Anstrom KJ, O'Connor C, Velazquez EJ. Torsemide Versus Furosemide in Heart Failure Patients. Journal Of Cardiovascular Pharmacology 2015, 65: 438-443. PMID: 25945862, PMCID: PMC4423558, DOI: 10.1097/fjc.0000000000000212.Peer-Reviewed Original ResearchMeSH KeywordsAcademic Medical CentersAgedComorbidityDatabases, FactualFemaleFurosemideHeart FailureHumansKaplan-Meier EstimateMaleMiddle AgedNorth CarolinaRetrospective StudiesRisk FactorsSex FactorsSodium Potassium Chloride Symporter InhibitorsSulfonamidesTertiary Care CentersTorsemideTreatment OutcomeUltrasonographyConceptsHeart failure patientsFailure patientsEffects of torsemideFurosemide-treated patientsMore comorbiditiesCause mortalityBaseline characteristicsProspective trialHeart failureLoop diureticsResidual confoundingPatientsDuke HospitalFurosemideRisk adjustmentTorsemideMortalityLab databaseComorbiditiesDiureticsHospitalTrialsImplementation of Management Strategies for Diabetes and Hypertension From Local to Global Health in Cardiovascular Diseases
Bloomfield GS, Wang TY, Boulware LE, Califf RM, Hernandez AF, Velazquez EJ, Peterson ED, Li JS. Implementation of Management Strategies for Diabetes and Hypertension From Local to Global Health in Cardiovascular Diseases. Global Heart 2015, 10: 31-38. PMID: 25754564, PMCID: PMC4754665, DOI: 10.1016/j.gheart.2014.12.010.Peer-Reviewed Original ResearchConceptsCardiovascular diseaseNetwork-based careFuture cardiovascular diseasePopulation risk stratificationUniversity Health CentreSuccessful treatment interventionsChronic conditionsHealth centersTreatment interventionsHypertensionDiabetesImproved healthGlobal healthMajor causal factorDiseaseHealthManagement strategiesCausal factorsPrevalenceCare
2012
Long-Term Survival of Patients With Ischemic Cardiomyopathy Treated by Coronary Artery Bypass Grafting Versus Medical Therapy
Velazquez EJ, Williams JB, Yow E, Shaw LK, Lee KL, Phillips HR, O'Connor CM, Smith PK, Jones RH. Long-Term Survival of Patients With Ischemic Cardiomyopathy Treated by Coronary Artery Bypass Grafting Versus Medical Therapy. The Annals Of Thoracic Surgery 2012, 93: 523-530. PMID: 22269720, PMCID: PMC3638256, DOI: 10.1016/j.athoracsur.2011.10.064.Peer-Reviewed Original ResearchMeSH KeywordsAgedAngioplasty, Balloon, CoronaryCardiac CatheterizationCardiovascular AgentsComorbidityCoronary Artery BypassDatabases, FactualFemaleFollow-Up StudiesHeart FailureHumansKaplan-Meier EstimateMaleMiddle AgedMitral Valve InsufficiencyModels, CardiovascularMyocardial IschemiaNorth CarolinaRetrospective StudiesRisk FactorsStroke VolumeTreatment OutcomeConceptsVentricular ejection fractionCoronary artery diseaseMedical therapyArtery diseaseEjection fractionCanadian Cardiovascular Society class III anginaLeft ventricular ejection fractionRisk-adjusted mortality ratesClass III anginaLeft main diseaseCoronary artery bypassLeft main stenosisLong-term mortalityIschemic heart diseaseTrial entry criteriaAcute myocardial infarctionMain outcome measuresPropensity score analysisArtery bypassCohort studyMain stenosisObservational cohortSurvival benefitCardiac catheterizationDuke Databank
2010
Prevalence and predictors of mechanical dyssynchrony as defined by phase analysis in patients with left ventricular dysfunction undergoing gated SPECT myocardial perfusion imaging
Samad Z, Atchley AE, Trimble MA, Sun JL, Shaw LK, Pagnanelli R, Chen J, Garcia EV, Iskandrian AE, Velazquez EJ, Borges-Neto S. Prevalence and predictors of mechanical dyssynchrony as defined by phase analysis in patients with left ventricular dysfunction undergoing gated SPECT myocardial perfusion imaging. Journal Of Nuclear Cardiology 2010, 18: 24-30. PMID: 21082299, PMCID: PMC3077282, DOI: 10.1007/s12350-010-9310-7.Peer-Reviewed Original ResearchMeSH KeywordsAgedAlgorithmsCardiac-Gated Single-Photon Emission Computer-Assisted TomographyFemaleHumansImage EnhancementImage Interpretation, Computer-AssistedIncidenceMaleMyocardial Perfusion ImagingNorth CarolinaPrevalenceReproducibility of ResultsRisk AssessmentRisk FactorsSensitivity and SpecificityVentricular Dysfunction, LeftConceptsLeft ventricular dysfunctionMechanical dyssynchronyVentricular dysfunctionIndependent predictorsBlack raceQRS durationPhase SDGated SPECT myocardial perfusionLeft ventricular ejection fractionTomography myocardial perfusion imagingStress scoresVentricular ejection fractionIschemic heart diseasePopulation of patientsMeasures of dyssynchronySPECT myocardial perfusionMyocardial perfusion imagingSingle photon emissionSignificant dyssynchronyEjection fractionEntire cohortUnivariate predictorsClinical variablesHeart diseaseMale genderImpact of early surgery on survival of patients with severe mitral regurgitation
Samad Z, Kaul P, Shaw LK, Glower DD, Velazquez EJ, Douglas PS, Jollis JG. Impact of early surgery on survival of patients with severe mitral regurgitation. Heart 2010, 97: 221. PMID: 21071750, DOI: 10.1136/hrt.2010.202432.Peer-Reviewed Original ResearchConceptsSevere mitral regurgitationDegenerative mitral regurgitationEarly surgery groupLate surgery groupEarly surgeryMitral regurgitationSurgery groupLate surgeryGuideline indicationsOptimal timingValve diseaseMV repairAdjusted Cox regression modelCongenital mitral valve diseaseValve repair/replacementSevere degenerative mitral regurgitationACC/AHA guideline recommendationsSevere valve diseaseSurvival of patientsTiming of surgeryMitral valve diseaseCox regression modelLong-term survivalEarly referralCoronary disease
2008
Detection of Left Ventricular Thrombus by Delayed-Enhancement Cardiovascular Magnetic Resonance Prevalence and Markers in Patients With Systolic Dysfunction
Weinsaft JW, Kim HW, Shah DJ, Klem I, Crowley AL, Brosnan R, James OG, Patel MR, Heitner J, Parker M, Velazquez EJ, Steenbergen C, Judd RM, Kim RJ. Detection of Left Ventricular Thrombus by Delayed-Enhancement Cardiovascular Magnetic Resonance Prevalence and Markers in Patients With Systolic Dysfunction. Journal Of The American College Of Cardiology 2008, 52: 148-157. PMID: 18598895, DOI: 10.1016/j.jacc.2008.03.041.Peer-Reviewed Original ResearchConceptsDelayed-enhancement cardiovascular magnetic resonanceCine cardiovascular magnetic resonanceLarge mural thrombusLeft ventricular thrombusSystolic dysfunctionVentricular thrombusMural thrombusMyocardial scarringRisk factorsTertiary care referral centerPrevalence of thrombusIndependent risk factorPresence of thrombusLogistic regression analysisCardiovascular magnetic resonanceThrombus prevalenceWorse LVEFIschemic etiologyLower LVEFLV thrombusEmbolic eventsReferral centerConsecutive patientsIschemic cardiomyopathyMultivariable analysis
2007
Mortality risk associated with ejection fraction differs across resting nuclear perfusion findings
Bourque JM, Velazquez EJ, Tuttle RH, Shaw LK, O’Connor C, Borges-Neto S. Mortality risk associated with ejection fraction differs across resting nuclear perfusion findings. Journal Of Nuclear Cardiology 2007, 14: 165-173. PMID: 17386378, DOI: 10.1016/j.nuclcard.2006.11.011.Peer-Reviewed Original ResearchConceptsMortality riskEjection fractionPrognostic informationHigher long-term mortality ratesLong-term mortality ratesPerfusion single-photon emissionVentricular ejection fractionIschemic heart diseaseLong-term outcomesProportional hazard modelingLong-term survivalSingle photon emissionCardiac catheterizationNormal LVEFRisk stratificationPerfusion findingsPatient prognosticationHeart diseaseRest scoreLVEFMyocardial perfusionMortality ratePerfusion studiesHazard modelingSignificant predictors