2024
Automated Identification of Heart Failure With Reduced Ejection Fraction Using Deep Learning-Based Natural Language Processing
Nargesi A, Adejumo P, Dhingra L, Rosand B, Hengartner A, Coppi A, Benigeri S, Sen S, Ahmad T, Nadkarni G, Lin Z, Ahmad F, Krumholz H, Khera R. Automated Identification of Heart Failure With Reduced Ejection Fraction Using Deep Learning-Based Natural Language Processing. JACC Heart Failure 2024 PMID: 39453355, DOI: 10.1016/j.jchf.2024.08.012.Peer-Reviewed Original ResearchReduced ejection fractionEjection fractionHeart failureLeft ventricular ejection fractionVentricular ejection fractionYale-New Haven HospitalIdentification of patientsCommunity hospitalIdentification of heart failureLanguage modelNorthwestern MedicineMeasure care qualityQuality of careNew Haven HospitalDeep learning-based natural language processingHFrEFGuideline-directed careDeep learning language modelsMIMIC-IIIDetect HFrEFNatural language processingReclassification improvementHospital dischargePatientsCare quality
2023
Left Ventricular Ejection Fraction and the Future of Heart Failure Phenotyping
Dimond M, Ibrahim N, Fiuzat M, McMurray J, Lindenfeld J, Ahmad T, Bozkurt B, Bristow M, Butler J, Carson P, Felker G, Jessup M, Murillo J, Kondo T, Solomon S, Abraham W, O'Connor C, Psotka M. Left Ventricular Ejection Fraction and the Future of Heart Failure Phenotyping. JACC Heart Failure 2023, 12: 451-460. PMID: 38099892, DOI: 10.1016/j.jchf.2023.11.005.Peer-Reviewed Original Research
2022
Alerting Clinicians to 1-Year Mortality Risk in Patients Hospitalized With Heart Failure
Ahmad T, Desai NR, Yamamoto Y, Biswas A, Ghazi L, Martin M, Simonov M, Dhar R, Hsiao A, Kashyap N, Allen L, Velazquez EJ, Wilson FP. Alerting Clinicians to 1-Year Mortality Risk in Patients Hospitalized With Heart Failure. JAMA Cardiology 2022, 7: 905-912. PMID: 35947362, PMCID: PMC9366654, DOI: 10.1001/jamacardio.2022.2496.Peer-Reviewed Original ResearchConceptsUsual care groupElectronic health recordsHeart failureAlert groupMedian agePrimary outcomeFemale patientsTerminal pro-brain natriuretic peptide levelsYale New Haven Health SystemPro-brain natriuretic peptide levelsMedian NT-proBNP levelLeft ventricular ejection fractionLarge tertiary care centerHeart failure hospitalizationHeart failure medicationsNatriuretic peptide levelsNT-proBNP levelsHealth recordsHours of admissionTertiary care centerVentricular ejection fractionRate of hospitalizationIntensive care unitEthnicity groupsSmall community hospitalElectronic Alerts to Improve Heart Failure Therapy in Outpatient Practice A Cluster Randomized Trial
Ghazi L, Yamamoto Y, Riello RJ, Coronel-Moreno C, Martin M, O'Connor KD, Simonov M, Huang J, Olufade T, McDermott J, Dhar R, Inzucchi SE, Velazquez EJ, Wilson FP, Desai NR, Ahmad T. Electronic Alerts to Improve Heart Failure Therapy in Outpatient Practice A Cluster Randomized Trial. Journal Of The American College Of Cardiology 2022, 79: 2203-2213. PMID: 35385798, DOI: 10.1016/j.jacc.2022.03.338.Peer-Reviewed Original ResearchConceptsGuideline-directed medical therapyUsual careEjection fractionHeart failureMedical therapyPrimary outcomeCluster-randomized comparative effectiveness trialSodium-glucose cotransporter 2 inhibitorsElectronic health record alertsAldosterone system inhibitorsReduced ejection fractionUsual care armCotransporter 2 inhibitorsMineralocorticoid receptor antagonistsVentricular ejection fractionComparative effectiveness trialNumber of patientsKnowledge of guidelinesLow-cost interventionCare armDays postrandomizationEligible patientsGDMT useFailure therapyPatient characteristics
2021
Rationale and design of a cluster-randomized pragmatic trial aimed at improving use of guideline directed medical therapy in outpatients with heart failure: PRagmatic trial of messaging to providers about treatment of heart failure (PROMPT-HF)
Ghazi L, Desai NR, Simonov M, Yamamoto Y, O'Connor KD, Riello RJ, Huang J, Olufade T, McDermott J, Inzucchi SE, Velazquez EJ, Wilson FP, Ahmad T. Rationale and design of a cluster-randomized pragmatic trial aimed at improving use of guideline directed medical therapy in outpatients with heart failure: PRagmatic trial of messaging to providers about treatment of heart failure (PROMPT-HF). American Heart Journal 2021, 244: 107-115. PMID: 34808104, DOI: 10.1016/j.ahj.2021.11.010.Peer-Reviewed Original ResearchConceptsGuideline-directed medical therapyBest practice alertLeft ventricular ejection fractionHeart failureUsual careMedical therapyPragmatic trialElectronic health recordsEjection fractionCluster-randomized pragmatic trialLarge integrated healthcare systemDays post randomizationAppropriate medical therapyHeart Failure TrialReduced ejection fractionUsual care groupCommon chronic illnessGlomerular filtration rateVentricular ejection fractionRecent blood pressureIntegrated healthcare systemUse of guidelinesLow-cost interventionCreatinine levelsReal-world practiceClinical phenogroups are more effective than left ventricular ejection fraction categories in stratifying heart failure outcomes
Gevaert AB, Tibebu S, Mamas MA, Ravindra NG, Lee SF, Ahmad T, Ko DT, Januzzi JL, Van Spall HGC. Clinical phenogroups are more effective than left ventricular ejection fraction categories in stratifying heart failure outcomes. ESC Heart Failure 2021, 8: 2741-2754. PMID: 33934542, PMCID: PMC8318507, DOI: 10.1002/ehf2.13344.Peer-Reviewed Original ResearchConceptsLeft ventricular ejection fractionChronic obstructive pulmonary diseaseHazard ratioComposite outcomePrimary outcomeAtrial fibrillationHeart diseaseComposite cardiovascular deathEjection fraction categoriesSecondary composite outcomeHeart failure outcomesPrimary composite outcomeObstructive pulmonary diseaseVentricular ejection fractionValvular heart diseaseCoronary heart diseaseGreater prognostic informationDifferent risk categoriesCause deathHF rehospitalizationPredominant comorbiditiesCardiovascular deathHF trialsBaseline characteristicsSecondary outcomes
2020
Mortality and readmission in non-ischemic compared with ischemic cardiomyopathies after implantable cardioverter-defibrillator implantation
Freeman J, Bjerre J, Parzynski C, Minges K, Ahmad T, Desai N, Enriquez A, Spatz E, Friedman D, Curtis J, Hlatky M, Higgins A. Mortality and readmission in non-ischemic compared with ischemic cardiomyopathies after implantable cardioverter-defibrillator implantation. European Heart Journal 2020, 41: ehaa946.0788. DOI: 10.1093/ehjci/ehaa946.0788.Peer-Reviewed Original ResearchNon-ischemic cardiomyopathyImplantable cardioverter defibrillator implantationPrimary prevention ICDsCardioverter-defibrillator implantationIschemic cardiomyopathyICM patientsNational Cardiovascular Data Registry ICD RegistryCox proportional hazards regression modelPrimary prevention ICD implantationLeft ventricular ejection fractionProportional hazards regression modelsOne-year mortalityHeart failure readmissionVentricular ejection fractionKaplan-Meier curvesHazards regression modelsRisk of mortalityMedian followCause readmissionICD implantationEjection fractionHeart failureHospital readmissionICD RegistryPatient subgroupsComparison of Mortality and Readmission in Non-Ischemic Versus Ischemic Cardiomyopathy After Implantable Cardioverter-Defibrillator Implantation
Higgins AY, Bjerre J, Parzynski CS, Minges KE, Ahmad T, Desai NR, Enriquez A, Spatz ES, Friedman DJ, Curtis JP, Hlatky MA, Freeman JV. Comparison of Mortality and Readmission in Non-Ischemic Versus Ischemic Cardiomyopathy After Implantable Cardioverter-Defibrillator Implantation. The American Journal Of Cardiology 2020, 133: 116-125. PMID: 32862971, DOI: 10.1016/j.amjcard.2020.07.035.Peer-Reviewed Original ResearchConceptsNon-ischemic cardiomyopathyImplantable cardioverter defibrillator implantationCardioverter-defibrillator implantationICM patientsIschemic cardiomyopathyNational Cardiovascular Data Registry ICD RegistryCox proportional hazards regression modelPrimary prevention ICD implantationLeft ventricular ejection fractionProportional hazards regression modelsPrimary prevention ICDsRetrospective cohort studyVentricular ejection fractionKaplan-Meier curvesHazards regression modelsRisk of mortalityComparison of mortalityMedian followCohort studyICD implantationEjection fractionHeart failureHospital readmissionICD RegistryPatient subgroups
2015
Cardiac dysfunction associated with a nucleotide polymerase inhibitor for treatment of hepatitis C
Ahmad T, Yin P, Saffitz J, Pockros PJ, Lalezari J, Shiffman M, Freilich B, Zamparo J, Brown K, Dimitrova D, Kumar M, Manion D, Heath-Chiozzi M, Wolf R, Hughes E, Muir AJ, Hernandez AF. Cardiac dysfunction associated with a nucleotide polymerase inhibitor for treatment of hepatitis C. Hepatology 2015, 62: 409-416. PMID: 25251156, DOI: 10.1002/hep.27488.Peer-Reviewed Original ResearchConceptsNucleotide polymerase inhibitorLVEF dysfunctionPolymerase inhibitorsB-type natriuretic peptide levelsChronic hepatitis C virus (HCV) infectionHepatitis C virus infectionActing antiviral (DAA) agentsSevere myocyte damageC virus infectionNatriuretic peptide levelsPhase II studyVentricular ejection fractionT-wave inversionOff-target toxicityHCV treatmentHepatitis CII studySystolic functionTransthoracic echocardiogramEjection fractionNew DAAsCardiac dysfunctionElectrocardiogram changesPathological findingsCardiac toxicity