2017
Race and Sex Differences in QRS Interval and Associated Outcome Among Patients with Left Ventricular Systolic Dysfunction
Randolph TC, Broderick S, Shaw LK, Chiswell K, Mentz RJ, Kutyifa V, Velazquez EJ, Gilliam FR, Thomas KL. Race and Sex Differences in QRS Interval and Associated Outcome Among Patients with Left Ventricular Systolic Dysfunction. Journal Of The American Heart Association 2017, 6: e004381. PMID: 28320746, PMCID: PMC5523998, DOI: 10.1161/jaha.116.004381.Peer-Reviewed Original ResearchConceptsQRS durationBundle branch blockWhite patientsHeart failureBlack patientsBranch blockNon-left bundle branch block morphologyLeft ventricular systolic dysfunctionMultivariable Cox regression modelsBundle branch block morphologyLeft bundle branch blockMedian QRS durationVentricular systolic dysfunctionHeart failure patientsVentricular ejection fractionShorter QRS durationCox regression modelRisk of mortalityDuke University HospitalBlack individualsSex differencesCause mortalitySystolic dysfunctionCoronary angiographyEjection fraction
2007
Racial Disparity in the Utilization of Implantable-Cardioverter Defibrillators Among Patients With Prior Myocardial Infarction and an Ejection Fraction of ≤35%
Thomas KL, Al-Khatib SM, Kelsey RC, Bush H, Brosius L, Velazquez EJ, Peterson ED, Gilliam FR. Racial Disparity in the Utilization of Implantable-Cardioverter Defibrillators Among Patients With Prior Myocardial Infarction and an Ejection Fraction of ≤35%. The American Journal Of Cardiology 2007, 100: 924-929. PMID: 17826371, DOI: 10.1016/j.amjcard.2007.04.024.Peer-Reviewed Original ResearchConceptsSudden cardiac deathLeft ventricular systolic dysfunctionVentricular systolic dysfunctionCardiac deathEjection fractionBlack patientsMyocardial infarctionSystolic dysfunctionWhite patientsPrimary preventionSignificant left ventricular systolic dysfunctionLower mean ejection fractionSudden cardiac death rateCardiac death rateMean ejection fractionPrior myocardial infarctionMultivariate logistic regressionImplantable cardioverter defibrillatorClinical characteristicsICD implantationICD useOverall mortalityProphylactic implantationPatient raceNational registry