2019
Automated expiratory ventilation assistance through a small endotracheal tube can improve venous return and cardiac output
Berlin DA, Manoach S, Oromendia C, Heerdt PM. Automated expiratory ventilation assistance through a small endotracheal tube can improve venous return and cardiac output. Intensive Care Medicine Experimental 2019, 7: 6. PMID: 30627962, PMCID: PMC6326914, DOI: 10.1186/s40635-018-0217-y.Peer-Reviewed Original ResearchConventional positive pressure ventilationExpiratory ventilation assistancePositive pressure ventilationSmall endotracheal tubeMedian cardiac outputVenous returnCardiac outputPressure ventilationEndotracheal tubeArterial pressureConventional ventilationVentilation assistanceLow central venous pressureCentral venous pressureSystemic arterial pressureEVA groupPEEP 0Venous pressureExpiratory pressureStroke volumeControl groupPorcine modelEffective ventilationVentilationHemorrhage24 Cardiovascular Physiology Integrative Function
Crystal G, Assaad S, Heerdt P, Desso R, Swenson J, Kolbay P, Kuck K, Decou J. 24 Cardiovascular Physiology Integrative Function. 2019, 473-519. DOI: 10.1016/b978-0-323-48110-6.00024-7.ChaptersBlood flowPerioperative cardiovascular monitoringEnd-systolic pressure-volume relationPulmonary artery catheterMyocardial oxygen demandCoronary blood flowSufficient blood flowCardiac function curveTissue blood flowTissue oxygen deliveryPressure-volume loopsTissue oxygen consumptionCirculatory reflexesPerioperative periodArtery catheterBody tissuesEjection fractionPressure-volume relationCardiac outputCardiac functionMyocardial contractilityMyocardial ischemiaStroke volumePatient managementOxygen delivery
2015
Non-invasive cardiac output monitoring for cesarean delivery under epidural anesthesia in a patient with Marfan syndrome and cardiomyopathy
Beaudry S, Pick J, Heerdt P. Non-invasive cardiac output monitoring for cesarean delivery under epidural anesthesia in a patient with Marfan syndrome and cardiomyopathy. International Journal Of Obstetric Anesthesia 2015, 25: 82-85. PMID: 26718697, DOI: 10.1016/j.ijoa.2015.11.003.Peer-Reviewed Original ResearchConceptsNon-invasive cardiac output monitoringCardiac outputCardiac output monitoringCesarean deliveryStroke volumeEpidural anesthesiaBaseline valuesMarfan syndromeLeft ventricular ejection fractionOutput monitoringUse of phenylephrineEnd of surgeryIntravascular volume depletionMaternal cardiac outputMitral valve replacementSystemic blood pressureAdequate surgical anesthesiaClose hemodynamic monitoringVentricular ejection fractionAcute blood lossAcute volume overloadStroke volume increaseValve replacementBlood lossBlood pressure