2018
Clinical Utility and Prognostic Value of Right Atrial Function in Pulmonary Hypertension
Alenezi F, Mandawat A, Il'Giovine ZJ, Shaw LK, Siddiqui I, Tapson VF, Arges K, Rivera D, Romano MMD, Velazquez EJ, Douglas PS, Samad Z, Rajagopal S. Clinical Utility and Prognostic Value of Right Atrial Function in Pulmonary Hypertension. Circulation Cardiovascular Imaging 2018, 11: e006984. PMID: 30571314, PMCID: PMC6309911, DOI: 10.1161/circimaging.117.006984.Peer-Reviewed Original ResearchConceptsPulmonary arterial hypertensionArterial hypertensionRA dysfunctionLongitudinal strainComplete echocardiographic dataResults Study subjectsRight atrial functionRight atrial enlargementComposite of timeEarly diastolic SRPeak longitudinal strainRA conduitRA reservoirMultivariable adjustmentPulmonary hypertensionAtrial functionComposite outcomeDiastolic SRAtrial enlargementAtrial sizePrimary outcomePrognostic importancePrognostic valueAdverse outcomesMean ageClinical and Echocardiographic Predictors of Outcomes in Patients With Pulmonary Hypertension
Siddiqui I, Rajagopal S, Brucker A, Chiswell K, Christopher B, Alenezi F, Mandawat A, Rivera D, Arges K, Tapson V, Kisslo J, Velazquez E, Douglas PS, Samad Z. Clinical and Echocardiographic Predictors of Outcomes in Patients With Pulmonary Hypertension. The American Journal Of Cardiology 2018, 122: 872-878. PMID: 30093068, PMCID: PMC6280670, DOI: 10.1016/j.amjcard.2018.05.019.Peer-Reviewed Original ResearchConceptsPrecapillary pulmonary hypertensionRV global longitudinal strainPulmonary hypertensionEchocardiographic parametersHard outcomesPulmonary arterial hypertension medicationsClass III symptomsREVEAL risk scoreRight heart functionCohort of patientsCumulative incidence rateCurrent clinical guidelinesGlobal longitudinal strainEchocardiographic predictorsHypertension medicationsNT-proBNPTransthoracic echocardiographyWalk distanceUnivariable analysisMean ageClinical guidelinesIncidence rateMultivariable modelSurrogate outcomesRisk scoreRight Ventricular Longitudinal Strain Reproducibility Using Vendor-Dependent and Vendor-Independent Software
Il'Giovine ZJ, Mulder H, Chiswell K, Arges K, Tomfohr J, Hashmi A, Velazquez EJ, Kisslo JA, Samad Z, Rajagopal S. Right Ventricular Longitudinal Strain Reproducibility Using Vendor-Dependent and Vendor-Independent Software. Journal Of The American Society Of Echocardiography 2018, 31: 721-732.e5. PMID: 29525250, PMCID: PMC6825401, DOI: 10.1016/j.echo.2018.01.008.Peer-Reviewed Original ResearchConceptsVendor-independent softwarePeak systolic longitudinal strainRight ventricular functionSingle-center studySystolic longitudinal strainMulticenter clinical trialCongenital heart diseaseRepeated-measures analysisRVLS valuesPulmonary hypertensionVentricular functionVendor-specific softwareHeart diseaseClinical trialsEchocardiographic scansClinical practiceLongitudinal strainWidespread variabilityDiseaseGlobal strainDifferent ultrasound scannersEffect of scannerWide variabilityRegional strainPossible interactions
2017
Improving on the diagnostic characteristics of echocardiography for pulmonary hypertension
Broderick-Forsgren K, Davenport CA, Sivak JA, Hargett CW, Foster MC, Monteagudo A, Armour A, Rajagopal S, Arges K, Velazquez EJ, Samad Z. Improving on the diagnostic characteristics of echocardiography for pulmonary hypertension. The International Journal Of Cardiovascular Imaging 2017, 33: 1341-1349. PMID: 28337558, DOI: 10.1007/s10554-017-1114-2.Peer-Reviewed Original ResearchMeSH KeywordsArea Under CurveCardiac CatheterizationEchocardiographyHumansHypertension, PulmonaryHypertrophy, Right VentricularModels, CardiovascularPredictive Value of TestsPulmonary ArteryReproducibility of ResultsRetrospective StudiesROC CurveVentricular Dysfunction, RightVentricular Function, RightVentricular PressureConceptsValue of echoRight heart catheterizationPulmonary hypertensionComplex congenital heart diseaseRight heart parametersEcho parametersCongenital heart diseaseVentricular assist deviceDiagnostic characteristicsTime of studyLower RVSPPA enlargementRV dysfunctionRV enlargementEchocardiographic parametersHeart catheterizationHeart transplantationAdult patientsProspective cohortMechanical ventilationRetrospective studyHeart diseaseAssist deviceRVSPScreening test
2015
Use of outcome measures in pulmonary hypertension clinical trials
Parikh KS, Rajagopal S, Arges K, Ahmad T, Sivak J, Kaul P, Shah SH, Tapson V, Velazquez EJ, Douglas PS, Samad Z. Use of outcome measures in pulmonary hypertension clinical trials. American Heart Journal 2015, 170: 419-429.e3. PMID: 26385024, DOI: 10.1016/j.ahj.2015.06.010.Peer-Reviewed Original ResearchMeSH KeywordsClinical Trials as TopicHemodynamicsHumansHypertension, PulmonaryOutcome Assessment, Health CareConceptsHypertension clinical trialsPulmonary arterial hypertensionPAH trialsClinical practiceInvasive hemodynamicsPrimary endpointClinical trialsOutcome measuresInvasive measuresSurrogate measureDuke University Medical CenterPatient-centered endpointsSecondary outcome measuresClinical treatment trialsMEDLINE/EMBASEUniversity Medical CenterSmall patient populationQuality of lifeContemporary clinical practicePAH therapyPH medicationsArterial hypertensionSerial echocardiographyPatient characteristicsSecondary outcomes
2014
Comprehensive Assessment of Right Ventricular Function in Patients with Pulmonary Hypertension with Global Longitudinal Peak Systolic Strain Derived from Multiple Right Ventricular Views
Rajagopal S, Forsha DE, Risum N, Hornik CP, Poms AD, Fortin TA, Tapson VF, Velazquez EJ, Kisslo J, Samad Z. Comprehensive Assessment of Right Ventricular Function in Patients with Pulmonary Hypertension with Global Longitudinal Peak Systolic Strain Derived from Multiple Right Ventricular Views. Journal Of The American Society Of Echocardiography 2014, 27: 657-665.e3. PMID: 24656881, DOI: 10.1016/j.echo.2014.02.001.Peer-Reviewed Original ResearchConceptsRV longitudinal peak systolic strainLongitudinal peak systolic strainPulmonary hypertensionRight ventricular functionRV functionPeak systolic strainFour-chamber viewRight ventricleRV dysfunctionClinical characteristicsWalk distanceVentricular functionSystolic strainGlobal longitudinal peak systolic strainTricuspid annular plane systolic excursionAssessment of PHMean pulmonary artery pressurePulmonary capillary wedge pressureRV myocardial performance indexAnnular plane systolic excursionRegional RV dysfunctionCapillary wedge pressurePulmonary artery pressureCohort of patientsMyocardial performance index