2025
Exercise Pulmonary Hypertension and Beyond: Insights in Exercise Pathophysiology in Pulmonary Arterial Hypertension (PAH) from Invasive Cardiopulmonary Exercise Testing
Tarras E, Singh I, Kreiger J, Joseph P. Exercise Pulmonary Hypertension and Beyond: Insights in Exercise Pathophysiology in Pulmonary Arterial Hypertension (PAH) from Invasive Cardiopulmonary Exercise Testing. Journal Of Clinical Medicine 2025, 14: 804. PMID: 39941482, PMCID: PMC11818252, DOI: 10.3390/jcm14030804.Peer-Reviewed Original ResearchInvasive cardiopulmonary exercise testingPulmonary arterial hypertensionCardiopulmonary exercise testingArterial hypertensionAssociated with pulmonary vascular remodelingExercise testRight heart failureExercise pulmonary hypertensionPulmonary vascular remodelingPulmonary hypertensionProgressive diseasePulmonary vasculatureTherapeutic optionsExercise pathophysiologyHigh morbidityHeart failureEarly diagnosisVascular remodelingTherapeutic approachesPersonalized treatmentHypertensionDisease subtypesDiagnosisSkeletal muscleDisease
2023
Proteomic profiling demonstrates inflammatory and endotheliopathy signatures associated with impaired cardiopulmonary exercise hemodynamic profile in Post Acute Sequelae of SARS‐CoV‐2 infection (PASC) syndrome
Singh I, Leitner B, Wang Y, Zhang H, Joseph P, Lutchmansingh D, Gulati M, Possick J, Damsky W, Hwa J, Heerdt P, Chun H. Proteomic profiling demonstrates inflammatory and endotheliopathy signatures associated with impaired cardiopulmonary exercise hemodynamic profile in Post Acute Sequelae of SARS‐CoV‐2 infection (PASC) syndrome. Pulmonary Circulation 2023, 13: e12220. PMID: 37091121, PMCID: PMC10113513, DOI: 10.1002/pul2.12220.Peer-Reviewed Original ResearchInvasive cardiopulmonary exercise testPASC patientsPost-acute sequelaeAcute sequelaeInfection syndromeUnexplained exertional intoleranceCardiopulmonary exercise testSystemic oxygen deliveryPersistent inflammatory stateVenous blood plasmaExertional intolerancePeak exerciseEndothelial dysfunctionHemodynamic profileInflammatory stateExercise testFibrotic processPathophysiological hallmarkAberrant protein expressionExpression of proteinsOxygen deliveryOxygen extractionProteomic profilingPatientsPhysiologic responses
2020
Diagnostic utility of sub‐maximum cardiopulmonary exercise testing in the ambulatory setting for heart failure with preserved ejection fraction
Oakland HT, Joseph P, Elassal A, Cullinan M, Heerdt PM, Singh I. Diagnostic utility of sub‐maximum cardiopulmonary exercise testing in the ambulatory setting for heart failure with preserved ejection fraction. Pulmonary Circulation 2020, 10: 1-10. PMID: 33282205, PMCID: PMC7691918, DOI: 10.1177/2045894020972273.Peer-Reviewed Original ResearchIsolated post-capillary pulmonary hypertensionPost-capillary pulmonary hypertensionCardiopulmonary exercise testRight heart catheterizationPulmonary vascular capacitanceVE/VCOPulmonary hypertensionEnd-tidal carbon dioxideEjection fractionHeart failureExercise testHeart catheterizationVascular capacitanceCombined preElevated left-sided filling pressuresLeft-sided filling pressuresGender-matched control subjectsOxygen uptake efficiency slopeCarbon dioxide slopeCardiopulmonary exercise testingPulmonary artery complianceEnd-tidal COAdjunct diagnostic toolMaximum oxygen uptakeGreater ventilatory
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