2019
Differential Clinical Profiles, Exercise Responses, and Outcomes Associated With Existing HFpEF Definitions
Ho J, Zern E, Wooster L, Bailey C, Cunningham T, Eisman A, Hardin K, Zampierollo G, Jarolim P, Pappagianopoulos P, Malhotra R, Nayor M, Lewis G. Differential Clinical Profiles, Exercise Responses, and Outcomes Associated With Existing HFpEF Definitions. Circulation 2019, 140: 353-365. PMID: 31132875, PMCID: PMC6684250, DOI: 10.1161/circulationaha.118.039136.Peer-Reviewed Original ResearchConceptsHeart Failure Society of AmericaEuropean Society of CardiologyClinical profileHeart failureCardiovascular outcomesComprehensive cardiopulmonary exercise testingHemodynamic profile of patientsChronic exertional dyspneaDefinitions of HFpEFExercise responseSuspected heart failureAmerican College of Cardiology/American Heart AssociationInvasive hemodynamic monitoringPhenotype of patientsIncidence of cardiovascular outcomesCardiopulmonary exercise testingProfile of patientsClinical trial criteriaSociety of CardiologyPeak oxygen uptakeConsecutive patientsHFpEF subgroupsEjection fractionExertional dyspneaPrognostic implications
2014
Mechanisms of Exercise Intolerance in Heart Failure With Preserved Ejection Fraction
Dhakal B, Malhotra R, Murphy R, Pappagianopoulos P, Baggish A, Weiner R, Houstis N, Eisman A, Hough S, Lewis G. Mechanisms of Exercise Intolerance in Heart Failure With Preserved Ejection Fraction. Circulation Heart Failure 2014, 8: 286-294. PMID: 25344549, PMCID: PMC5771713, DOI: 10.1161/circheartfailure.114.001825.Peer-Reviewed Original ResearchConceptsHeart failureExercise capacityEjection fractionC(a-v)O2Peripheral O2 extractionMechanisms of exercise intoleranceElevated systemic blood pressureIV heart failureReduced ejection fractionCardiac filling pressuresInvasive hemodynamic monitoringMaximum incremental cardiopulmonary exercise testingPeripheral microvascular functionPeak respiratory exchange ratioSystemic blood pressureImpaired exercise capacityO2 extractionPredictors of peak VO2Cardiopulmonary exercise testingIncremental cardiopulmonary exercise testImpairing O2 extractionNYHA IIPeak heart ratePeak oxygen uptakeIntrinsic abnormality