2024
A Multimodal Video-Based AI Biomarker for Aortic Stenosis Development and Progression
Oikonomou E, Holste G, Yuan N, Coppi A, McNamara R, Haynes N, Vora A, Velazquez E, Li F, Menon V, Kapadia S, Gill T, Nadkarni G, Krumholz H, Wang Z, Ouyang D, Khera R. A Multimodal Video-Based AI Biomarker for Aortic Stenosis Development and Progression. JAMA Cardiology 2024, 9: 534-544. PMID: 38581644, PMCID: PMC10999005, DOI: 10.1001/jamacardio.2024.0595.Peer-Reviewed Original ResearchCardiac magnetic resonanceAortic valve replacementCardiac magnetic resonance imagingAV VmaxSevere ASAortic stenosisCohort studyPeak aortic valve velocityCohort study of patientsAortic valve velocityCohort of patientsTraditional cardiovascular risk factorsAssociated with faster progressionStudy of patientsCedars-Sinai Medical CenterAssociated with AS developmentCardiovascular risk factorsCardiovascular imaging modalitiesIndependent of ageModerate ASEjection fractionEchocardiographic studiesValve replacementRisk stratificationCardiac structure
2023
Predicting aortic stenosis progression using a video-based deep learning model of aortic stenosis built for single-view two-dimensional echocardiography
Oikonomou E, Holste G, Mcnamara R, Velazquez E, Nadkarni G, Ouyang D, Krumholz H, Wang Z, Khera R. Predicting aortic stenosis progression using a video-based deep learning model of aortic stenosis built for single-view two-dimensional echocardiography. European Heart Journal 2023, 44: ehad655.040. DOI: 10.1093/eurheartj/ehad655.040.Peer-Reviewed Original ResearchLeft ventricular ejection fractionSevere aortic stenosisAortic stenosisAS progressionAV VmaxTransthoracic echocardiographyYale New Haven Health SystemBaseline left ventricular ejection fractionAortic stenosis progressionModerate aortic stenosisRetrospective cohort studyVentricular ejection fractionTwo-dimensional echocardiographyMean rateModerate ASAS severityCohort studyEjection fractionPatient sexStenosis progressionTTE studiesEligible participantsSerial monitoringSpecialized centersTimely diagnosis
2022
Association Between Depressive Symptoms and Cardiac Structure and Function in a Peruvian Population
Santiago C, Peña M, Brown T, Shakil S, Januzzi J, Velazquez E, Miranda J, Rivera D, Checkley W. Association Between Depressive Symptoms and Cardiac Structure and Function in a Peruvian Population. Global Heart 2022, 17: 78. PMID: 36382157, PMCID: PMC9615600, DOI: 10.5334/gh.981.Peer-Reviewed Original ResearchConceptsSignificant depressive symptomsDepressive symptomsHeart failureCardiac structureTransthoracic echocardiographyEpidemiological Studies Depression ScaleCRONICAS Cohort StudyDiastolic relaxation velocityCause of disabilityMultivariable linear regressionNon-depressed subjectsCohort studyEchocardiographic measuresMiddle-income countriesWorse outcomesDepressive disorderDepression ScaleCardiac diseaseRelaxation velocityDepression symptomsNon-depressed participantsSymptomsPeruvian populationRelevant covariatesAdult participants
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
Speckle Tracking Analysis of Left Ventricular Systolic Function Following Traumatic Brain Injury: A Pilot Prospective Observational Cohort Study
Krishnamoorthy V, Chaikittisilpa N, Lee J, Mackensen GB, Gibbons EF, Laskowitz D, Hernandez A, Velazquez E, Lele AV, Vavilala MS. Speckle Tracking Analysis of Left Ventricular Systolic Function Following Traumatic Brain Injury: A Pilot Prospective Observational Cohort Study. Journal Of Neurosurgical Anesthesiology 2019, 32: 156-161. PMID: 30676403, PMCID: PMC6646112, DOI: 10.1097/ana.0000000000000578.Peer-Reviewed Original ResearchConceptsLeft ventricular ejection fractionGlobal longitudinal strainTraumatic brain injuryAge/sex-matched controlsSex-matched controlsModerate-severe traumatic brain injurySystolic dysfunctionCohort studyBrain injuryMean global longitudinal strainProspective observational cohort studyObservational cohort studyProspective cohort studySubclinical myocardial dysfunctionVentricular ejection fractionSpeckle trackingSpeckle tracking analysisFirst dayMid-ventricular segmentsModerate-severe TBI patientsSystolic functionTransthoracic echocardiographyEjection fractionMyocardial dysfunctionTBI patients
2017
Clinical characteristics and 12-month outcomes of patients with valvular and non-valvular atrial fibrillation in Kenya
Temu TM, Lane KA, Shen C, Ng'ang'a L, Akwanalo CO, Chen PS, Emonyi W, Heckbert SR, Koech MM, Manji I, Vatta M, Velazquez EJ, Wessel J, Kimaiyo S, Inui TS, Bloomfield GS. Clinical characteristics and 12-month outcomes of patients with valvular and non-valvular atrial fibrillation in Kenya. PLOS ONE 2017, 12: e0185204. PMID: 28934312, PMCID: PMC5608343, DOI: 10.1371/journal.pone.0185204.Peer-Reviewed Original ResearchConceptsValvular AFValvular heart diseaseAtrial fibrillationNVAF patientsAF patientsHeart diseaseNon-valvular atrial fibrillationGlobal cardiovascular disease burdenValvular atrial fibrillationRates of hypertensionCardiovascular disease burdenLong-term outcomesProspective data collectionAnticoagulation therapyClinical characteristicsCohort studyClinical profileHeart failureOverall mortalityClinical featuresComorbid conditionsFatal outcomeMean ageFemale sexDisease burden
2015
Relationship Between Daily Exposure to Biomass Fuel Smoke and Blood Pressure in High-Altitude Peru
Burroughs Peña M, Romero KM, Velazquez EJ, Davila-Roman VG, Gilman RH, Wise RA, Miranda JJ, Checkley W. Relationship Between Daily Exposure to Biomass Fuel Smoke and Blood Pressure in High-Altitude Peru. Hypertension 2015, 65: 1134-1140. PMID: 25753976, PMCID: PMC4466100, DOI: 10.1161/hypertensionaha.114.04840.Peer-Reviewed Original ResearchConceptsDiastolic blood pressureSystolic blood pressureBlood pressureBiomass fuel useHousehold air pollutionVital capacityFuel smokeHigher systolic blood pressurePopulation-based cohort studyDaily exposureHigher diastolic blood pressureBiomass fuel usersBlood pressure outcomesElevated blood pressureHigh blood pressureBiomass fuel smokeMultivariable regression modelsCardiovascular preventionCohort studyLung functionPressure outcomesEffect modificationHigher likelihoodHypertensionFuel users
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
2008
Impact of Left Ventricular Dysfunction on Hospital Mortality Among Patients Undergoing Elective Percutaneous Coronary Intervention
Wallace TW, Berger JS, Wang A, Velazquez EJ, Brown DL. Impact of Left Ventricular Dysfunction on Hospital Mortality Among Patients Undergoing Elective Percutaneous Coronary Intervention. The American Journal Of Cardiology 2008, 103: 355-360. PMID: 19166689, DOI: 10.1016/j.amjcard.2008.09.088.Peer-Reviewed Original ResearchConceptsElective percutaneous coronary interventionPercutaneous coronary interventionHospital mortalityEjection fractionCoronary interventionOdds ratioLeft ventricular systolic dysfunctionHospital mortality increasesReduced ejection fractionRetrospective cohort studyVentricular systolic dysfunctionLeft ventricular dysfunctionLow ejection fractionLV ejection fractionAdjusted hospital mortalitySystolic dysfunctionVentricular dysfunctionCohort studyMultivariate adjustmentMedical therapyEF groupPatientsMortalityOutcome variablesMortality increases