2016
Reassessment of Cardiac Function and Implantable Cardioverter-Defibrillator Use Among Medicare Patients With Low Ejection Fraction After Myocardial Infarction
Pokorney SD, Miller AL, Chen AY, Thomas L, Fonarow GC, de Lemos JA, Al-Khatib SM, Velazquez EJ, Peterson ED, Wang TY. Reassessment of Cardiac Function and Implantable Cardioverter-Defibrillator Use Among Medicare Patients With Low Ejection Fraction After Myocardial Infarction. Circulation 2016, 135: 38-47. PMID: 27881561, DOI: 10.1161/circulationaha.116.022359.Peer-Reviewed Original ResearchMeSH KeywordsAgedDatabases, FactualDefibrillators, ImplantableFemaleHeart VentriclesHumansMagnetic Resonance ImagingMaleMedicareMyocardial InfarctionMyocardial RevascularizationProportional Hazards ModelsRegistriesRetrospective StudiesStroke VolumeSurvival RateTomography, X-Ray ComputedUltrasonographyUnited StatesConceptsLow ejection fractionEjection fractionICD implantationMyocardial infarctionMI admissionsRevascularization statusImplantable cardioverter-defibrillator (ICD) useACTION Registry-GWTGICD implantation ratesMultivariable Cox modelPost-MI patientsYears of ageImplantation rateCardiac functionMedicare patientsCox modelPatientsAdmissionHigher likelihoodInfarctionImplantationAssociationYearsStatusICDAortic valve surgery and survival in patients with moderate or severe aortic stenosis and left ventricular dysfunction
Samad Z, Vora AN, Dunning A, Schulte PJ, Shaw LK, Al-Enezi F, Ersboll M, McGarrah RW, Vavalle JP, Shah SH, Kisslo J, Glower D, Harrison JK, Velazquez EJ. Aortic valve surgery and survival in patients with moderate or severe aortic stenosis and left ventricular dysfunction. European Heart Journal 2016, 37: 2276-2286. PMID: 26787441, PMCID: PMC5841220, DOI: 10.1093/eurheartj/ehv701.Peer-Reviewed Original ResearchConceptsAortic valve surgerySevere aortic stenosisModerate aortic stenosisAortic stenosisValve surgeryMean gradientMultivariable Cox modelVentricular systolic dysfunctionCoronary artery bypassHigh-risk cohortCurrent practice patternsArtery bypassCause mortalityEchocardiographic databaseSystolic dysfunctionVentricular dysfunctionMultivariable adjustmentTranscatheter approachMedical therapyPractice patternsBetter survivalCABGCox modelPatientsLower mortality
2013
Influence of Crossover on Mortality in a Randomized Study of Revascularization in Patients With Systolic Heart Failure and Coronary Artery Disease
Doenst T, Cleland JG, Rouleau JL, She L, Wos S, Ohman EM, Krzeminska-Pakula M, Airan B, Jones RH, Siepe M, Sopko G, Velazquez EJ, Racine N, Gullestad L, Filgueira JL, Lee KL. Influence of Crossover on Mortality in a Randomized Study of Revascularization in Patients With Systolic Heart Failure and Coronary Artery Disease. Circulation Heart Failure 2013, 6: 443-450. PMID: 23515275, PMCID: PMC3721746, DOI: 10.1161/circheartfailure.112.000130.Peer-Reviewed Original ResearchConceptsHeart failureCoronary artery bypass graft surgeryIschemic Heart Failure (STICH) trialPatient/family decisionArtery bypass graft surgeryImpact of CABGBypass graft surgeryHeart Failure TrialMultivariable Cox modelSystolic heart failureCoronary artery diseaseIschemic heart diseaseAcute decompensationGraft surgeryProgressive symptomsArtery diseaseMedical therapySurgical treatmentFailure TrialPatient populationHeart diseaseCABGCommon reasonCox modelPatients
2010
Atrial fibrillation management strategies and early mortality after myocardial infarction: results from the Valsartan in Acute Myocardial Infarction (VALIANT) Trial
Nilsson KR, Al-Khatib SM, Zhou Y, Pieper K, White HD, Maggioni AP, Kober L, Granger CB, Lewis EF, McMurray JJ, Califf RM, Velazquez EJ. Atrial fibrillation management strategies and early mortality after myocardial infarction: results from the Valsartan in Acute Myocardial Infarction (VALIANT) Trial. Heart 2010, 96: 838. PMID: 20406769, DOI: 10.1136/hrt.2009.180182.Peer-Reviewed Original ResearchConceptsRhythm control strategyAcute Myocardial Infarction trialMyocardial Infarction trialAtrial fibrillationMyocardial infarctionRate control strategyEarly mortalityAnti-arrhythmic drug therapyTreatment of AFPeri-infarct periodIncidence of strokeManagement of patientsRisk of deathLate mortalityPatient populationDrug therapyCox modelPatientsMortalityInfarctionStrokeValsartanTrialsDeathDaysMechanical Dyssynchrony After Myocardial Infarction in Patients With Left Ventricular Dysfunction, Heart Failure, or Both
Shin SH, Hung CL, Uno H, Hassanein AH, Verma A, Bourgoun M, Køber L, Ghali JK, Velazquez EJ, Califf RM, Pfeffer MA, Solomon SD. Mechanical Dyssynchrony After Myocardial Infarction in Patients With Left Ventricular Dysfunction, Heart Failure, or Both. Circulation 2010, 121: 1096-1103. PMID: 20176989, DOI: 10.1161/circulationaha.109.863795.Peer-Reviewed Original ResearchMeSH KeywordsAgedAnalog-Digital ConversionAngiotensin II Type 1 Receptor BlockersDeathDisease ProgressionFemaleFollow-Up StudiesHeart FailureHumansMaleMiddle AgedMotionMyocardial ContractionMyocardial InfarctionPrognosisProportional Hazards ModelsStress, MechanicalTetrazolesUltrasonographyValineValsartanVentricular Dysfunction, LeftVideo RecordingConceptsSD of timeLeft ventricular dysfunctionHeart failureMyocardial infarctionMechanical dyssynchronyVentricular dysfunctionIndependent predictorsPost-myocardial infarction prognosisPeak velocityAdverse cardiovascular outcomesMultivariate Cox modelRisk of deathLeft ventricular segmentsMeasures of dyssynchronyVelocity vector imagingCardiovascular outcomesEchocardiographic variablesVentricular synchronyVentricular dyssynchronyClinical outcomesEchocardiography studyRisk factorsContractile patternsVentricular segmentsCox model
2007
Amiodarone use after acute myocardial infarction complicated by heart failure and/or left ventricular dysfunction may be associated with excess mortality
Thomas KL, Al-Khatib SM, Lokhnygina Y, Solomon SD, Kober L, McMurray JJ, Califf RM, Velazquez EJ. Amiodarone use after acute myocardial infarction complicated by heart failure and/or left ventricular dysfunction may be associated with excess mortality. American Heart Journal 2007, 155: 87-93. PMID: 18082495, DOI: 10.1016/j.ahj.2007.09.010.Peer-Reviewed Original ResearchMeSH KeywordsAgedAmiodaroneCaptoprilCause of DeathDose-Response Relationship, DrugDouble-Blind MethodDrug Administration ScheduleDrug Therapy, CombinationFemaleHeart FailureHumansMaleMiddle AgedMultivariate AnalysisMyocardial InfarctionProbabilityProportional Hazards ModelsReference ValuesRisk AssessmentSeverity of Illness IndexSurvival AnalysisTetrazolesTreatment OutcomeValineValsartanVentricular DysfunctionConceptsVentricular systolic dysfunctionAmiodarone useAcute myocardial infarctionMyocardial infarctionSystolic dysfunctionLeft ventricular systolic dysfunctionPost-acute myocardial infarctionHazard ratio 1.5Higher Killip classTrials of amiodaroneKillip classVentricular dysfunctionBaseline characteristicsCardiovascular mortalityDiabetes mellitusHeart failureMedical regimenRandomized comparisonBaseline predictorsExcess mortalityCox modelSubsequent mortalityDay 1PatientsAmiodarone