2023
Continuous non-invasive hemodynamic monitoring in early onset severe preeclampsia
Ackerman-Banks C, Bhinder J, Eder M, Heerdt P, Sugeng L, Testani J, Alian A, Lipkind H, Velazquez E, Reddy U, Chou J. Continuous non-invasive hemodynamic monitoring in early onset severe preeclampsia. Pregnancy Hypertension 2023, 34: 27-32. PMID: 37783090, DOI: 10.1016/j.preghy.2023.09.003.Peer-Reviewed Original ResearchConceptsTotal peripheral resistanceCardiac outputSevere preeclampsiaHemodynamic monitoringEarly-onset severe preeclampsiaProspective observational studyOnset severe preeclampsiaContinuous hemodynamic monitoringNon-invasive hemodynamic monitoringEarly preeclampsiaPregnant patientsPeripheral resistanceObservational studyPreeclampsiaLow mean biasDays postpartumNICOMModerate correlationPoor correlationMean biasAntepartumPatients
2018
Pharmacokinetic/Pharmacodynamic Model of CW002, an Investigational Intermediate Neuromuscular Blocking Agent, in Healthy Volunteers
Kaullen JD, Owen JS, Brouwer KLR, Heerdt PM, Lien CA, Savarese JJ, Schmith VD. Pharmacokinetic/Pharmacodynamic Model of CW002, an Investigational Intermediate Neuromuscular Blocking Agent, in Healthy Volunteers. Anesthesiology 2018, 128: 1107-1116. PMID: 29494403, PMCID: PMC5953789, DOI: 10.1097/aln.0000000000002157.Peer-Reviewed Original ResearchConceptsNeuromuscular blocking agentsBlocking agentRapid onsetPharmacodynamic modelDifferent dose cohortsMuscle twitch heightOffset of effectSingle ascending dosePharmacokinetic/Pharmacodynamic ModelArterial plasma concentrationsIntermediate durationPlasma drug concentration dataSigmoid Emax modelDose-response studyDrug concentration dataConcentration-time dataLow interindividual variabilityDose cohortsED95 dosesAscending dosePredictable pharmacokineticsSevoflurane anesthesiaPopulation pharmacokineticsSingle dosesTwitch height
2017
Annexin A2 supports pulmonary microvascular integrity by linking vascular endothelial cadherin and protein tyrosine phosphatases
Luo M, Flood EC, Almeida D, Yan L, Berlin DA, Heerdt PM, Hajjar KA. Annexin A2 supports pulmonary microvascular integrity by linking vascular endothelial cadherin and protein tyrosine phosphatases. Journal Of Experimental Medicine 2017, 214: 2535-2545. PMID: 28694388, PMCID: PMC5584111, DOI: 10.1084/jem.20160652.Peer-Reviewed Original ResearchConceptsAlveolar hypoxiaVascular endothelial cadherinMicrovascular integrityPulmonary edemaSrc homology phosphatase 2Vascular integrityEndothelial cellsVascular endothelial growth factorMicrovascular endothelial cellsEndothelial growth factorAdherens junction protein vascular endothelial cadherinEndothelial cadherinAirway obstructionNeutrophil infiltrationPulmonary microvasculatureAnnexin A2 functionsVascular leakLung parenchymaMice displayAltitude sicknessBarrier functionGrowth factorHypoxiaPhospholipid-binding proteinsProtein tyrosine phosphatase
2016
Dose–response and Cardiopulmonary Side Effects of the Novel Neuromuscular-blocking Drug CW002 in Man
Heerdt PM, Sunaga H, Owen JS, Murrell MT, Malhotra JK, Godfrey D, Steinkamp M, Savard P, Savarese JJ, Lien CA. Dose–response and Cardiopulmonary Side Effects of the Novel Neuromuscular-blocking Drug CW002 in Man. Anesthesiology 2016, 125: 1136-1143. PMID: 27749289, DOI: 10.1097/aln.0000000000001386.Peer-Reviewed Original ResearchConceptsCardiopulmonary side effectsHistamine releaseSide effectsBlood pressureHealthy subjectsHeart rateSevoflurane/nitrous oxideDose-escalation clinical trialDynamic airway complianceNeuromuscular-blocking drugsEscalation clinical trialPlasma histamine concentrationSigmoid Emax modelClinical recoveryClinical durationAdductor pollicisTwitch depressionAirway complianceNeuromuscular blockadeClinical trialsPreclinical studiesArterial bloodEmax modelHistamine concentrationCW002
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 pressureEffect of gantacurium on evoked laryngospasm and duration of apnea in anesthetized healthy cats.
Martin-Flores M, Cheetham J, Campoy L, Sakai DM, Heerdt PM, Gleed RD. Effect of gantacurium on evoked laryngospasm and duration of apnea in anesthetized healthy cats. American Journal Of Veterinary Research 2015, 76: 216-23. PMID: 25710757, DOI: 10.2460/ajvr.76.3.216.Peer-Reviewed Original ResearchConceptsDuration of apneaHemoglobin oxygen saturationLast doseLaryngeal stimulationNeuromuscular blockOxygen saturationPelvic limbsLaryngeal mask airwayComplete neuromuscular blockDomestic shorthair catAdult domestic shorthair catsHealthy adult domestic shorthair catsMask airwayLaryngeal maskSE durationAnesthetized catsHemoglobin desaturationLaryngospasmShorthair catClinical relevanceGantacuriumHealthy catsApneaRima glottidisDose
2013
NHE Isoform Switching and KChIP2 Upregulation in Aging Porcine Atria
Kant R, Hu Z, Malhotra JK, Krogh-Madsen T, Christini DJ, Heerdt PM, Abbott GW. NHE Isoform Switching and KChIP2 Upregulation in Aging Porcine Atria. PLOS ONE 2013, 8: e82951. PMID: 24376615, PMCID: PMC3871617, DOI: 10.1371/journal.pone.0082951.Peer-Reviewed Original ResearchConceptsAtrial fibrillationMyocyte action potential durationHuman cardiac physiologyCessation of stimulationAction potential durationLarge animal modelSodium-hydrogen exchangerReperfusion arrhythmiasNHE1-specific inhibitorMyocardial responsivenessPharmacological responsivenessPharmacologic efficacyYoung adult pigsAtrial tissuePotential durationTherapeutic targetAnimal modelsCardiac pathologyKChIP2 expressionReal-time qPCRPotential molecular basisTherapeutic agentsCardiac physiologyFemale swineYoung adults
2011
Letter to the Editor: Response to Ballestero et al
Heerdt PM. Letter to the Editor: Response to Ballestero et al. Pediatric Cardiology 2011, 32: 866-867. PMID: 21509496, DOI: 10.1007/s00246-011-9992-x.Peer-Reviewed Original Research
2008
Activation of brain protein phosphatase‐1I following cardiac arrest and resuscitation involving an interaction with 14‐3‐3γ
Platholi J, Heerdt PM, Tung H, Hemmings HC. Activation of brain protein phosphatase‐1I following cardiac arrest and resuscitation involving an interaction with 14‐3‐3γ. Journal Of Neurochemistry 2008, 105: 2029-2038. PMID: 18284617, PMCID: PMC3872065, DOI: 10.1111/j.1471-4159.2008.05300.x.Peer-Reviewed Original ResearchConceptsGlobal cerebral ischemiaCerebral ischemiaCardiac arrestTransient global cerebral ischemiaTransient cerebral ischemiaPotential therapeutic targetRelevant pig modelIschemic brainNeuroprotective mechanismsControl brainsInhibitory modulatorTherapeutic targetPig modelIschemiaPig brainBrain proteinsMechanism-based approachBrainProtein betaResuscitationEnergy metabolismCritical regulatorArrestVivoActivationPractice Patterns in Choice of Left Double-Lumen Tube Size for Thoracic Surgery
Amar D, Desiderio DP, Heerdt PM, Kolker AC, Zhang H, Thaler HT. Practice Patterns in Choice of Left Double-Lumen Tube Size for Thoracic Surgery. Anesthesia & Analgesia 2008, 106: 379-383. PMID: 18227288, DOI: 10.1213/ane.0b013e3181602e41.Peer-Reviewed Original ResearchConceptsDouble-lumen tubeFr double lumen tubeLung isolationDLT repositioningThoracic surgeryDouble-lumen tube sizeSized double-lumen tubePilot studyIntraoperative outcome measuresLeft mainstem bronchusProspective pilot studyIntraoperative hypoxemiaAirway traumaTransient hypoxemiaFiberoptic bronchoscopyMainstem bronchusIntraoperative outcomesSimilar incidenceBronchial cuffDLT sizePractice patternsOutcome measuresSurgeryHypoxemiaPatients
2007
Inflammation and outcome after general thoracic surgery
Amar D, Zhang H, Park B, Heerdt PM, Fleisher M, Thaler HT. Inflammation and outcome after general thoracic surgery. European Journal Of Cardio-Thoracic Surgery 2007, 32: 431-434. PMID: 17643996, DOI: 10.1016/j.ejcts.2007.06.017.Peer-Reviewed Original ResearchConceptsC-reactive proteinMajor postoperative complicationsPostoperative complicationsIL-6Non-steroidal anti-inflammatory drug useHigh-sensitivity C-reactive proteinAnti-inflammatory drug usePreoperative C-reactive proteinSensitivity C-reactive proteinImportant postoperative complicationPreoperative albumin levelTertiary cancer centerMarkers of inflammationMarkers of outcomePostanesthesia care unitProspective data collectionGeneral thoracic surgeryLung resectionSystemic inflammationAlbumin levelsConsecutive patientsLow albuminCare unitPoor outcomeCancer Center
2006
Cardiomyopathic Etiology and SERCA2a Reverse Remodeling During Mechanical Support of the Failing Human Heart
Heerdt PM, Klotz S, Burkhoff D. Cardiomyopathic Etiology and SERCA2a Reverse Remodeling During Mechanical Support of the Failing Human Heart. Anesthesia & Analgesia 2006, 102: 32-37. PMID: 16368801, DOI: 10.1213/01.ane.0000183642.09435.ad.Peer-Reviewed Original ResearchMeSH KeywordsAdultAnalysis of VarianceAnimalsBiomechanical PhenomenaCalcium-Transporting ATPasesCardiomyopathy, DilatedConfidence IntervalsDatabases, FactualFemaleGene Expression Regulation, EnzymologicHeart-Assist DevicesHumansIn Vitro TechniquesMaleMiddle AgedRatsSarcoplasmic Reticulum Calcium-Transporting ATPasesVentricular RemodelingConceptsLeft ventricular assist deviceForce-frequency relationshipSERCA2a functionMyocardial force-frequency relationshipMyocyte calcium cyclingSERCA2a gene expressionFailing Human HeartVentricular assist deviceChronic failureProportion of trabeculaeReverse remodelingLVAD supportMyopathic originSubtype 2aDCM heartsDisease processSERCA2a mRNAAssist deviceCalcium cyclingHeart samplesAbnormal expressionMyocardial trabeculaeGene expressionMolecular remodelingHuman heart
2002
Disease-specific remodeling of cardiac mitochondria after a left ventricular assist device
Heerdt PM, Schlame M, Jehle R, Barbone A, Burkhoff D, Blanck TJ. Disease-specific remodeling of cardiac mitochondria after a left ventricular assist device. The Annals Of Thoracic Surgery 2002, 73: 1216-1221. PMID: 11996266, DOI: 10.1016/s0003-4975(01)03621-9.Peer-Reviewed Original Research
2001
Comparison of Right and Left Ventricular Responses to Left Ventricular Assist Device Support in Patients With Severe Heart Failure
Barbone A, Holmes J, Heerdt P, The’ A, Naka Y, Joshi N, Daines M, Marks A, Oz M, Burkhoff D. Comparison of Right and Left Ventricular Responses to Left Ventricular Assist Device Support in Patients With Severe Heart Failure. Circulation 2001, 104: 670-675. PMID: 11489773, DOI: 10.1161/hc3101.093903.Peer-Reviewed Original ResearchMeSH KeywordsAdultAge FactorsAgedBlood PressureCalcium-Transporting ATPasesCardiac OutputFemaleFibrosisHeart FailureHeart TransplantationHeart VentriclesHeart-Assist DevicesHemodynamicsHumansIn Vitro TechniquesLungMaleMiddle AgedSarcoplasmic Reticulum Calcium-Transporting ATPasesTime FactorsVenous PressureConceptsSevere heart failureLVAD supportRight ventricleLeft ventricleReverse remodelingHeart failureHigh central venous pressurePulmonary artery diastolic pressureVentricular assist device supportLV myocyte diameterCentral venous pressureAssist device supportHigh cardiac outputHearts of patientsForce-frequency relationVentricular assist deviceComparison of rightPossible primary roleRV trabeculaeVenous pressureVentricular responseDiastolic pressureHemodynamic unloadingCardiac outputNeurohormonal factors
2000
Chronic Unloading by Left Ventricular Assist Device Reverses Contractile Dysfunction and Alters Gene Expression in End-Stage Heart Failure
Heerdt P, Holmes J, Cai B, Barbone A, Madigan J, Reiken S, Lee D, Oz M, Marks A, Burkhoff D. Chronic Unloading by Left Ventricular Assist Device Reverses Contractile Dysfunction and Alters Gene Expression in End-Stage Heart Failure. Circulation 2000, 102: 2713-2719. PMID: 11094037, DOI: 10.1161/01.cir.102.22.2713.Peer-Reviewed Original ResearchMeSH KeywordsAdultAgedBlotting, NorthernBlotting, WesternCalcium-Transporting ATPasesFemaleGene Expression RegulationHeart FailureHeart VentriclesHeart-Assist DevicesHumansMaleMiddle AgedMyocardial ContractionRNA, MessengerRyanodine Receptor Calcium Release ChannelSarcolemmaSodium-Hydrogen ExchangersConceptsEnd-stage heart failureLVAD supportHeart failureContractile strengthLVAD implantationSarcoplasmic reticular membranesNegative FFRIntact myocardiumVentricular assist deviceBlot analysisExpression of genesWestern blot analysisContractile dysfunctionSERCA2a proteinLV trabeculaeSubtype 2aChronic unloadingLV tissueAssist deviceContractile forcePatientsAlters gene expressionHigher mRNAReticular membranesRyanodine receptorIsoflurane Pretreatment Ameliorates Postischemic Neurologic Dysfunction and Preserves Hippocampal Ca2+/Calmodulin-dependent Protein Kinase in a Canine Cardiac Arrest Model
Blanck T, Haile M, Xu F, Zhang J, Heerdt P, Veselis R, Beckman J, Kang R, Adamo A, Hemmings H. Isoflurane Pretreatment Ameliorates Postischemic Neurologic Dysfunction and Preserves Hippocampal Ca2+/Calmodulin-dependent Protein Kinase in a Canine Cardiac Arrest Model. Anesthesiology 2000, 93: 1285-1293. PMID: 11046218, DOI: 10.1097/00000542-200011000-00023.Peer-Reviewed Original ResearchMeSH KeywordsAnesthetics, InhalationAnimalsBlood PressureBlotting, WesternBrain DiseasesCalciumCalcium-Calmodulin-Dependent Protein Kinase Type 2Calcium-Calmodulin-Dependent Protein KinasesDogsFemaleHeart Arrest, InducedHeart RateHippocampusIschemic Attack, TransientIschemic PreconditioningIsofluraneNeuroprotective AgentsSynaptosomesConceptsNeurologic deficit scoreCanine cardiac arrest modelCardiac arrest modelDeficit scoresIschemic animalsCardiac arrestGlobal ischemiaStriatum of animalsEffective neuroprotective drugsIsoflurane pretreatmentNeurologic dysfunctionNeurologic functionHippocampal contentNeuroprotective effectsIsoflurane exposureHippocampal levelsIntensive careNeuroprotective drugsRat modelVentricular fibrillationInhalational anestheticsTreatment groupsBlinded evaluatorsCanine modelIschemia