Featured Publications
Diagnosis of coronary microvascular dysfunction in the clinic
Ong P, Safdar B, Seitz A, Hubert A, Beltrame J, Prescott E. Diagnosis of coronary microvascular dysfunction in the clinic. Cardiovascular Research 2020, 116: 841-855. PMID: 31904824, DOI: 10.1093/cvr/cvz339.Peer-Reviewed Original ResearchConceptsInterventional diagnostic proceduresCoronary microvascular dysfunctionCoronary microcirculationMicrovascular dysfunctionIntracoronary acetylcholine testingCoronary microvascular functionCoronary blood flowIndividual patient characteristicsChronic pathologic conditionsAcetylcholine testingCoronary spasmRecurrent symptomsCoronary vasoconstrictorPatient characteristicsCoronary thrombosisMicrovascular functionInvasive assessmentClinical conditionsEffective treatmentRespective patientsBlood flowCardiac metabolismClinical importancePathologic conditionsInvasive methodElevated renalase levels in patients with acute coronary microvascular dysfunction – A possible biomarker for ischemia
Safdar B, Guo X, Johnson C, D'Onofrio G, Dziura J, Sinusas AJ, Testani J, Rao V, Desir G. Elevated renalase levels in patients with acute coronary microvascular dysfunction – A possible biomarker for ischemia. International Journal Of Cardiology 2019, 279: 155-161. PMID: 30630613, PMCID: PMC6482834, DOI: 10.1016/j.ijcard.2018.12.061.Peer-Reviewed Original ResearchConceptsCoronary microvascular dysfunctionFramingham risk scorePET/CTChest painInflammatory markersMicrovascular dysfunctionEmergency departmentRisk scoreRb-82 PET/CTElevated renalase levelsAcute chest painCoronary artery diseaseC-reactive proteinVascular endothelial growth factorAnti-inflammatory proteinTumor necrosis factorEndothelial growth factorAngina historyCMD diagnosisRenalase levelsHypertensive crisisED presentationsHemodynamic instabilityArtery diseaseHeart failurePrevalence and characteristics of coronary microvascular dysfunction among chest pain patients in the emergency department
Safdar B, D’Onofrio G, Dziura J, Russell RR, Johnson C, Sinusas AJ. Prevalence and characteristics of coronary microvascular dysfunction among chest pain patients in the emergency department. European Heart Journal Acute Cardiovascular Care 2018, 9: 5-13. PMID: 29543037, DOI: 10.1177/2048872618764418.Peer-Reviewed Original ResearchConceptsCoronary microvascular dysfunctionCoronary artery diseaseCardiac positron emission tomography/Positron emission tomography/Chest pain patientsArtery diseaseAcute myocardial infarctionEmission tomography/Chest painMyocardial infarctionMicrovascular dysfunctionPain patientsEmergency departmentTomography/General emergency department populationLower coronary flow reserveNon-obstructive coronary arteriesPrior emergency department visitsTraditional cardiac risk factorsCardiac risk factorsModerate-risk patientsEmergency department visitsEmergency department patientsCoronary flow reserveEmergency department populationIdentifying Myocardial Ischemia due to Coronary Microvascular Dysfunction in the Emergency Department: Introducing a New Paradigm in Acute Chest Pain Evaluation
Safdar B, Ong P, Camici PG. Identifying Myocardial Ischemia due to Coronary Microvascular Dysfunction in the Emergency Department: Introducing a New Paradigm in Acute Chest Pain Evaluation. Clinical Therapeutics 2018, 40: 1920-1930. PMID: 30458932, DOI: 10.1016/j.clinthera.2018.09.010.Peer-Reviewed Original ResearchConceptsAcute myocardial infarctionRecurrent chest painCoronary microvascular dysfunctionChest painEmergency departmentHs-TnTMicrovascular dysfunctionMyocardial ischemiaAcute chest pain evaluationHigh-sensitivity troponin TDiagnosis of AMIType 2 acute myocardial infarctionElevated hs-TnTIschemia/necrosisChest pain evaluationGroup of patientsAssessment of symptomsIdentification of patientsAppropriate medical treatmentSex-specific thresholdsPulmonary embolismVasomotor disordersAortic dissectionPain evaluationEpicardial coronaries
2024
Sex differences in proteomics of cardiovascular disease: results from the Yale-CMD registry
Liu Y, Wang Z, Collins S, Testani J, Kleinstein S, Safdar B. Sex differences in proteomics of cardiovascular disease: results from the Yale-CMD registry. European Heart Journal 2024, 45: ehae666.3091. DOI: 10.1093/eurheartj/ehae666.3091.Peer-Reviewed Original ResearchCoronary microvascular dysfunctionCoronary artery diseaseUpregulation of lipidCardiovascular diseaseAcute heart failureCoronary artery disease cohortHistory of diabetesPathophysiology of CVDProximity extension assayBody mass indexSignificant sex differencesRegulation of blood flowSerum proteomic profilesSex differencesProteomic profilingAngiogenesis-related proteinsCardiac PET/CTHemodynamic instabilityIschemic symptomsMicrovascular dysfunctionFalse discovery rateHeart failureFebrile illnessFunctional pathway analysisMass index
2021
Corrigendum to: Mild cognitive impairment in middle-aged adults with coronary microvascular dysfunction
Nowroozpoor A, Sharp E, Gordon R, Malicki C, Hwang U, Dziura J, D'Onofrio' G, Safdar B. Corrigendum to: Mild cognitive impairment in middle-aged adults with coronary microvascular dysfunction. European Heart Journal 2021, 43: 1776-1776. PMID: 34897369, DOI: 10.1093/eurheartj/ehab845.Peer-Reviewed Original ResearchCoronary microvascular dysfunctionMiddle-aged adultsMild cognitive impairmentMicrovascular dysfunctionMild cognitive impairment in middle-aged adults with coronary microvascular dysfunction
Nowroozpoor A, Sharp E, Gordon R, Malicki C, Hwang U, Dziura J, D'Onofrio' G, Safdar B. Mild cognitive impairment in middle-aged adults with coronary microvascular dysfunction. European Heart Journal 2021, 42: ehab724.2744. DOI: 10.1093/eurheartj/ehab724.2744.Peer-Reviewed Original ResearchCoronary microvascular dysfunctionCoronary flow reservePerfusion defectsCognitive impairmentMean ageCMD patientsCardiac positron emission tomography/Chest pain observation unitPositron emission tomography/Coronary artery diseaseSmall vessel diseaseEmission tomography/Montreal Cognitive AssessmentChest discomfortHypertensive urgencyMicrovascular dysfunctionArtery diseaseHeart failureVessel diseaseMyocardial infarctionTomography/Odds ratioFlow reserveNormal groupYears of educationUse of peripheral arterial tonometry in detection of abnormal coronary flow reserve
Gaeta M, Nowroozpoor A, Dziura J, D'Onofrio G, Sinusas AJ, Safdar B. Use of peripheral arterial tonometry in detection of abnormal coronary flow reserve. Microvascular Research 2021, 138: 104223. PMID: 34256085, PMCID: PMC10227886, DOI: 10.1016/j.mvr.2021.104223.Peer-Reviewed Original ResearchConceptsLower coronary flow reserveCoronary flow reserveCoronary microvascular dysfunctionCoronary artery diseaseClinical screening toolPET/CTFlow reserveRubidium-82 positron emission tomography/Large vessel coronary artery diseaseNormal coronary flow reserveTraditional CAD risk factorsVessel coronary artery diseaseAbnormal coronary flow reservePositron emission tomography/Screening toolPeripheral arterial tonometryCAD risk factorsEmission tomography/Presence of calcificationLower RHIHyperemia indexArterial tonometryMicrovascular dysfunctionArtery diseaseAugmentation index
2020
International prospective cohort study of microvascular angina – Rationale and design
Suda A, Takahashi J, Beltrame JF, Berry C, Camici PG, Crea F, Escaned J, Ford T, Kaski J, Kiyooka T, Metha PK, Ong P, Ozaki Y, Pepine C, Rimoldi O, Safdar B, Sechtem U, Tsujita K, Yii E, Merz C, Shimokawa H, Group O. International prospective cohort study of microvascular angina – Rationale and design. IJC Heart & Vasculature 2020, 31: 100630. PMID: 32984497, PMCID: PMC7494778, DOI: 10.1016/j.ijcha.2020.100630.Peer-Reviewed Original ResearchCoronary artery diseaseLong-term prognosisCoronary microvascular dysfunctionMajor cardiovascular eventsMicrovascular anginaClinical characteristicsMyocardial ischemiaMicrovascular dysfunctionMVA patientsDiagnostic criteriaNon-obstructive coronary artery diseaseNon-fatal myocardial infarctionObstructive coronary artery diseaseInternational prospective cohort studyCoronary functional abnormalitiesProspective registry studyNon-fatal strokeProspective cohort studyCardiovascular deathCardiovascular eventsPrimary endpointCohort studyRegistry studyUnstable anginaArtery diseaseUtility of discovery approach using proteomics to create a biomarker profile for coronary microvascular dysfunction
Nowroozpoor A, Gutterman D, Safdar B. Utility of discovery approach using proteomics to create a biomarker profile for coronary microvascular dysfunction. Microvascular Research 2020, 129: 103985. PMID: 32007502, PMCID: PMC10291513, DOI: 10.1016/j.mvr.2020.103985.Peer-Reviewed Original ResearchConceptsCoronary microvascular dysfunctionCoronary flow reserveMicrovascular dysfunctionNormal coronary flow reservePositron emission tomography/Beta-blocker useAcute myocardial infarctionEmission tomography/Regional perfusion defectsSerum proteinsBaseline characteristicsCoronary calcificationMyocardial infarctionTomography/Perfusion defectsCMD patientsFlow reserveSerial measurementsBiomarker profilesAdvanced imagingPatientsPotential biomarkersPotential protein biomarkersSerum samplesObservation unit
2019
Classification of Patients with Coronary Microvascular Dysfunction
Fodeh S, Li T, Jarad H, Safdar B. Classification of Patients with Coronary Microvascular Dysfunction. IEEE/ACM Transactions On Computational Biology And Bioinformatics 2019, 17: 704-711. PMID: 31056516, DOI: 10.1109/tcbb.2019.2914442.Peer-Reviewed Original Research
2018
Identifying Patients with Coronary Microvascular Dysfunction using Machine Learning
Fodeh S, Li T, Jarad H, Safdar B. Identifying Patients with Coronary Microvascular Dysfunction using Machine Learning. 2018, 00: 715-721. DOI: 10.1109/icdmw.2018.00109.Peer-Reviewed Original Research
2017
Ranolazine and Microvascular Angina by PET in the Emergency Department: Results From a Pilot Randomized Controlled Trial
Safdar B, D’Onofrio G, Dziura J, Russell RR, Johnson C, Sinusas AJ. Ranolazine and Microvascular Angina by PET in the Emergency Department: Results From a Pilot Randomized Controlled Trial. Clinical Therapeutics 2017, 39: 55-63. PMID: 28081848, PMCID: PMC10345862, DOI: 10.1016/j.clinthera.2016.12.002.Peer-Reviewed Original ResearchConceptsCoronary microvascular dysfunctionCoronary flow reserveCoronary artery diseaseChest painSymptomatic patientsArtery diseasePrimary outcomeEmergency departmentNonobstructive coronary artery diseaseRb-82 positron emission tomographyEffect of ranolazineRate-pressure productEmergency department patientsQTc-prolonging drugsRobust clinical trialsPositron emission tomographyHypertensive urgencyMicrovascular anginaMicrovascular dysfunctionUnderdiagnosed causeControlled TrialsDepartment patientsHeart failureAcute symptomsPressure product