2014
Exercise Capacity and Mortality in Patients With Ischemic Left Ventricular Dysfunction Randomized to Coronary Artery Bypass Graft Surgery or Medical Therapy An Analysis From the STICH Trial (Surgical Treatment for Ischemic Heart Failure)
Stewart RA, Szalewska D, She L, Lee KL, Drazner MH, Lubiszewska B, Kosevic D, Ruengsakulrach P, Nicolau JC, Coutu B, Choudhary SK, Mark DB, Cleland JG, Piña IL, Velazquez EJ, Rynkiewicz A, White H. Exercise Capacity and Mortality in Patients With Ischemic Left Ventricular Dysfunction Randomized to Coronary Artery Bypass Graft Surgery or Medical Therapy An Analysis From the STICH Trial (Surgical Treatment for Ischemic Heart Failure). JACC Heart Failure 2014, 2: 335-343. PMID: 25023813, PMCID: PMC4127151, DOI: 10.1016/j.jchf.2014.02.009.Peer-Reviewed Original ResearchConceptsCoronary artery bypass graft surgeryIschemic left ventricular dysfunctionLeft ventricular dysfunctionArtery bypass graft surgeryBypass graft surgeryPoor exercise capacityExercise capacityMedical therapyVentricular dysfunctionSTICH trialGraft surgeryBetter exercise capacityWalk testMedical managementPrognostic significanceTreatment allocationPhysical activityPatientsEarly riskHigh mortalityMortalityTherapyDysfunctionSurgeryTrials
2011
Response to Letter Regarding Article, “Pathogenesis of Sudden Unexpected Death in a Clinical Trial of Patients With Myocardial Infarction and Left Ventricular Dysfunction, Heart Failure, or Both”
Pouleur A, Barkoudah E, Uno H, Skali H, Finn P, Zelenkofske S, Belenkov Y, Mareev V, Velazquez E, Rouleau J, Maggioni A, Køber L, Califf R, McMurray J, Pfeffer M, Solomon S. Response to Letter Regarding Article, “Pathogenesis of Sudden Unexpected Death in a Clinical Trial of Patients With Myocardial Infarction and Left Ventricular Dysfunction, Heart Failure, or Both”. Circulation 2011, 123: e586-e587. DOI: 10.1161/circulationaha.111.021600.Commentaries, Editorials and LettersNo Mortality Benefit from CABG When Added to Optimal Medical Therapy in Patients with CAD and LV Dysfunction: Results from the STICH Trial
Velazquez E. No Mortality Benefit from CABG When Added to Optimal Medical Therapy in Patients with CAD and LV Dysfunction: Results from the STICH Trial. MD Conference Express 2011, 11: 20-21. DOI: 10.1177/155989771103012.Peer-Reviewed Original ResearchMyocardial Viability and Survival in Ischemic Left Ventricular Dysfunction
Bonow RO, Maurer G, Lee KL, Holly TA, Binkley PF, Desvigne-Nickens P, Drozdz J, Farsky PS, Feldman AM, Doenst T, Michler RE, Berman DS, Nicolau JC, Pellikka PA, Wrobel K, Alotti N, Asch FM, Favaloro LE, She L, Velazquez EJ, Jones RH, Panza JA. Myocardial Viability and Survival in Ischemic Left Ventricular Dysfunction. New England Journal Of Medicine 2011, 364: 1617-1625. PMID: 21463153, PMCID: PMC3290901, DOI: 10.1056/nejmoa1100358.Peer-Reviewed Original ResearchMeSH KeywordsAgedCardiovascular DiseasesCombined Modality TherapyCoronary Artery BypassCoronary Artery DiseaseEchocardiography, StressFemaleFollow-Up StudiesHeart FailureHumansKaplan-Meier EstimateMaleMiddle AgedMyocardial IschemiaMyocardiumProportional Hazards ModelsStatistics, NonparametricTomography, Emission-Computed, Single-PhotonVentricular Dysfunction, LeftConceptsCoronary artery diseaseVentricular dysfunctionMedical therapyMyocardial viabilityArtery diseaseViable myocardiumSurvival benefitBaseline variablesIschemic left ventricular dysfunctionDifferential survival benefitSubstudy of patientsCoronary artery bypassLeft ventricular dysfunctionDobutamine echocardiographyUnderwent assessmentPatientsCABGDysfunctionTreatment assignmentTherapyMyocardiumDiseaseGreater likelihoodMortalityTrials
2009
Use of phase analysis of gated SPECT perfusion imaging to quantify dyssynchrony in patients with mild-to-moderate left ventricular dysfunction
Atchley AE, Trimble MA, Samad Z, Shaw LK, Pagnanelli R, Chen J, Garcia EV, Iskandrian AE, Velazquez EJ, Borges-Neto S. Use of phase analysis of gated SPECT perfusion imaging to quantify dyssynchrony in patients with mild-to-moderate left ventricular dysfunction. Journal Of Nuclear Cardiology 2009, 16: 888-894. PMID: 19690935, PMCID: PMC3048054, DOI: 10.1007/s12350-009-9136-3.Peer-Reviewed Original ResearchConceptsModerate LV dysfunctionSevere LV dysfunctionLV dysfunctionMechanical dyssynchronyQRS durationNormal controlsGated SPECTModerate left ventricular dysfunctionNYHA class IIIPrevalence of dyssynchronyLeft ventricular dysfunctionCohort of patientsMajority of patientsLV mechanical dyssynchronyGated SPECT imagingCurrent selection criteriaLess dyssynchronyLVEF 35More dyssynchronyVentricular dysfunctionPatient selectionDyssynchronyPatientsSPECT perfusionDysfunction
2008
24.09: Differences in electrical and mechanical dyssynchrony as quantified by phase analysis of gated SPECT imaging in patients with mild to moderate left ventricular dysfunction
Trimble M, Atchley A, Samad Z, Sun J, Shaw L, Pagnanelli R, Chen J, Garcia E, Iskandrian A, Borges-Neto S, Velazquez E. 24.09: Differences in electrical and mechanical dyssynchrony as quantified by phase analysis of gated SPECT imaging in patients with mild to moderate left ventricular dysfunction. Journal Of Nuclear Cardiology 2008, 15: s27-s28. DOI: 10.1016/j.nuclcard.2008.06.151.Peer-Reviewed Original ResearchRepeatability and reproducibility of phase analysis of gated single-photon emission computed tomography myocardial perfusion imaging used to quantify cardiac dyssynchrony
Trimble MA, Velazquez EJ, Adams GL, Honeycutt EF, Pagnanelli RA, Barnhart HX, Chen J, Iskandrian AE, Garcia EV, Borges-Neto S. Repeatability and reproducibility of phase analysis of gated single-photon emission computed tomography myocardial perfusion imaging used to quantify cardiac dyssynchrony. Nuclear Medicine Communications 2008, 29: 374-381. PMID: 18317303, PMCID: PMC3048057, DOI: 10.1097/mnm.0b013e3282f81380.Peer-Reviewed Original ResearchConceptsSingle photon emissionLeft ventricular dysfunctionTomography perfusion imagingPhase standard deviationNormal controlsPerfusion imagingVentricular dysfunctionTomography myocardial perfusion imagingMyocardial perfusion imagingIntraclass correlation coefficientCardiac dyssynchronyDyssynchronyPatientsInterobserver comparisonsIntraobserver comparisonsDysfunctionPhase indexMean absolute differenceImaging
2006
Epidemiology of Heart Failure and Left Ventricular Systolic Dysfunction after Acute Myocardial Infarction: Prevalence, Clinical Characteristics, and Prognostic Importance
Weir RA, McMurray JJ, Velazquez EJ. Epidemiology of Heart Failure and Left Ventricular Systolic Dysfunction after Acute Myocardial Infarction: Prevalence, Clinical Characteristics, and Prognostic Importance. The American Journal Of Cardiology 2006, 97: 13-25. PMID: 16698331, DOI: 10.1016/j.amjcard.2006.03.005.Peer-Reviewed Original ResearchConceptsVentricular systolic dysfunctionHeart failureSystolic dysfunctionAcute myocardial infarction resultsConcomitant heart failureLong-term mortalityAcute myocardial infarctionMyocardial infarction resultsEvidence-based treatmentsAggressive treatmentClinical characteristicsInhospital deathRehospitalization ratesHospital admissionInfarction resultsPrognostic importanceMyocardial infarctionEarly initiationHigh riskSignificant riskStrongest predictorAdmissionSignificant increaseDysfunctionTreatment
2005
Sudden Death in Patients with Myocardial Infarction and Left Ventricular Dysfunction, Heart Failure, or Both
Solomon SD, Zelenkofske S, McMurray JJ, Finn PV, Velazquez E, Ertl G, Harsanyi A, Rouleau JL, Maggioni A, Kober L, White H, Van de Werf F, Pieper K, Califf RM, Pfeffer MA. Sudden Death in Patients with Myocardial Infarction and Left Ventricular Dysfunction, Heart Failure, or Both. New England Journal Of Medicine 2005, 352: 2581-2588. PMID: 15972864, DOI: 10.1056/nejmoa043938.Peer-Reviewed Original ResearchConceptsLeft ventricular ejection fractionVentricular ejection fractionLeft ventricular dysfunctionMyocardial infarctionCardiac arrestSudden deathVentricular dysfunctionEjection fractionHeart failureLeft ventricular systolic functionHigh-risk patientsVentricular systolic functionSudden unexpected deathAcute myocardial infarctionCardiac causesHospital dischargeSystolic functionPercent confidence intervalsUnexpected deathHigh riskInfarctionPatientsResuscitationDysfunctionDeath
2004
Usefulness of myocardial viability or ischemia in predicting long-term survival for patients with severe left ventricular dysfunction undergoing revascularization
Liao L, Cabell CH, Jollis JG, Velazquez EJ, Smith WT, Anstrom KJ, Pappas PA, Ryan T, Kisslo JA, Landolfo CK. Usefulness of myocardial viability or ischemia in predicting long-term survival for patients with severe left ventricular dysfunction undergoing revascularization. The American Journal Of Cardiology 2004, 93: 1275-1279. PMID: 15135703, DOI: 10.1016/j.amjcard.2004.01.071.Peer-Reviewed Original ResearchConceptsSevere left ventricular dysfunctionLeft ventricular dysfunctionVentricular dysfunctionDobutamine stress echocardiographySignificant survival advantageLong-term survivalCoronary diseaseStress echocardiographyViable myocardiumMyocardial viabilityPrognostic powerSurvival advantagePatientsRevascularizationDysfunctionEchocardiographyIschemiaMyocardiumDiseaseMonthsValsartan, captopril, or both in myocardial infarction complicated by heart failure, left ventricular dysfunction, or both
Pfeffer M, McMurray J, Velazquez E, Investigators V. Valsartan, captopril, or both in myocardial infarction complicated by heart failure, left ventricular dysfunction, or both. ACC Current Journal Review 2004, 13: 31. DOI: 10.1016/j.accreview.2003.12.039.Commentaries, Editorials and Letters
2002
A Reappraisal of Myocardial Viability Testing in Patients with Coronary Artery Disease and Left Ventricular Dysfunction: Can Meta-Analysis Be Trusted?
Bourque J, Velazquez E, Borges-Neto S, Hasselblad V, O’Connor C. A Reappraisal of Myocardial Viability Testing in Patients with Coronary Artery Disease and Left Ventricular Dysfunction: Can Meta-Analysis Be Trusted? Cardiology 2002, 2: 204-205. DOI: 10.1159/000065943.Commentaries, Editorials and Letters