2022
Hospital market concentration and the use of mechanical circulatory support devices in acute myocardial infarction complicated by cardiogenic shock
Vohra A, Jang S, Feldman D, Goyal P, Krishnan U, Sciria C, Cheung J, Kim L. Hospital market concentration and the use of mechanical circulatory support devices in acute myocardial infarction complicated by cardiogenic shock. BMC Health Services Research 2022, 22: 89. PMID: 35045849, PMCID: PMC8772168, DOI: 10.1186/s12913-021-07458-1.Peer-Reviewed Original ResearchConceptsUse of MCSMechanical circulatory supportAMI-CSAcute myocardial infarctionCardiogenic shockCirculatory supportMyocardial infarctionMechanical circulatory support devicesPrimary study exposurePrimary study outcomeMultivariable logistic regressionNational Inpatient SampleCirculatory support devicesHospital mortalityBaseline characteristicsInpatient SampleMore frequent useSubgroup analysisCompetitive hospital marketsMultivariable regressionQuery patientsStudy exposurePatientsLogistic regressionStudy outcomes
2021
Leaks after Left Atrial Appendage Closure: Ignored or Neglected?
Jang S, Wong S, Mosadegh B. Leaks after Left Atrial Appendage Closure: Ignored or Neglected? Cardiology 2021, 146: 384-391. PMID: 33735867, DOI: 10.1159/000513901.Peer-Reviewed Original ResearchConceptsPeri-device leakAtrial appendage closureLAA closureThromboembolic eventsAppendage closureLong-term oral anticoagulationLeft atrial appendage closureLarger long-term studiesEpicardial LAA closureChronic atrial fibrillationRisk of thromboembolismHigh-velocity blood flowIncomplete LAA closureLong-term safetySmall study populationLAA closure procedureAtrial ostiumOral anticoagulationStroke preventionPercutaneous closureAtrial fibrillationResidual leakIncrease of riskClinical significanceStudy population
2020
Associations Between Hospital Length of Stay, 30‐Day Readmission, and Costs in ST‐Segment–Elevation Myocardial Infarction After Primary Percutaneous Coronary Intervention: A Nationwide Readmissions Database Analysis
Jang S, Yeo I, Feldman D, Cheung J, Minutello R, Singh H, Bergman G, Wong S, Kim L. Associations Between Hospital Length of Stay, 30‐Day Readmission, and Costs in ST‐Segment–Elevation Myocardial Infarction After Primary Percutaneous Coronary Intervention: A Nationwide Readmissions Database Analysis. Journal Of The American Heart Association 2020, 9: e015503. PMID: 32468933, PMCID: PMC7428974, DOI: 10.1161/jaha.119.015503.Peer-Reviewed Original ResearchMeSH KeywordsAgedAnterior Wall Myocardial InfarctionCost SavingsCost-Benefit AnalysisDatabases, FactualFemaleHospital CostsHumansLength of StayMaleMiddle AgedPatient ReadmissionPercutaneous Coronary InterventionRecurrenceRisk FactorsST Elevation Myocardial InfarctionTime FactorsTreatment OutcomeUnited StatesConceptsST-segment elevation myocardial infarctionPrimary percutaneous coronary interventionPercutaneous coronary interventionCoronary interventionSTEMI groupShorter LOSReadmission ratesMyocardial infarctionInfarct locationNationwide Readmissions Database AnalysisNationwide Readmissions DatabaseElevation myocardial infarctionEnormous economic burdenBackground ReadmissionLOS cohortReadmission mortalitySTEMI cohortSTEMI hospitalizationsUS healthcare systemHospital stayHospital lengthLonger LOSReadmissionEconomic burdenPatients
2019
An augmented reality system for image guidance of transcatheter procedures for structural heart disease
Liu J, Al’Aref S, Singh G, Caprio A, Moghadam A, Jang S, Wong S, Min J, Dunham S, Mosadegh B. An augmented reality system for image guidance of transcatheter procedures for structural heart disease. PLOS ONE 2019, 14: e0219174. PMID: 31260497, PMCID: PMC6602420, DOI: 10.1371/journal.pone.0219174.Peer-Reviewed Original ResearchMeSH KeywordsAugmented RealityCardiac CatheterizationCardiac Surgical ProceduresCathetersFiducial MarkersFluoroscopyFourier AnalysisHeartHumansImaging, Three-DimensionalModels, AnatomicPatient Care PlanningPhantoms, ImagingPreoperative CarePrinting, Three-DimensionalSpineSurgery, Computer-AssistedTomography, X-Ray ComputedConceptsReal-time 3D positionLow registration errorAutomated registration methodAcceptable computational costReality systemImage guidance systemReality devicesComputational costRegistration methodLand markersRegistration errorLow contrastGuidance systemTraining toolRenderingVisual environmentDepth perceptionQuantitative feedbackFluoroscopic imagesVisualizationNext generationSystemRealityBetter visualizationHigh success rate
2017
Comparison of Accuracy of One-Use Methods for Calculating Fractional Flow Reserve by Intravascular Optical Coherence Tomography to That Determined by the Pressure-Wire Method
Jang S, Ahn J, Kim B, Gu J, Sung H, Park S, Oh W. Comparison of Accuracy of One-Use Methods for Calculating Fractional Flow Reserve by Intravascular Optical Coherence Tomography to That Determined by the Pressure-Wire Method. The American Journal Of Cardiology 2017, 120: 1920-1925. PMID: 29050684, DOI: 10.1016/j.amjcard.2017.08.010.Peer-Reviewed Original Research
2016
Intracoronary dual-modal optical coherence tomography-near-infrared fluorescence structural–molecular imaging with a clinical dose of indocyanine green for the assessment of high-risk plaques and stent-associated inflammation in a beating coronary artery
Kim S, Lee M, Kim T, Song J, Nam H, Cho H, Jang S, Ryu J, Oh D, Gweon D, Park S, Park K, Oh W, Yoo H, Kim J. Intracoronary dual-modal optical coherence tomography-near-infrared fluorescence structural–molecular imaging with a clinical dose of indocyanine green for the assessment of high-risk plaques and stent-associated inflammation in a beating coronary artery. European Heart Journal 2016, 37: 2833-2844. PMID: 26787442, DOI: 10.1093/eurheartj/ehv726.Peer-Reviewed Original ResearchConceptsHigh-risk plaquesCoronary arteryOptical coherence tomographyIndocyanine greenClinical doseCoherence tomographySwine coronary arteriesLipid-rich plaquesNIRF signalStent-associated complicationsSaline-injected controlsStrong NIRF signalPlaque inflammationPlaque disruptionDES deploymentCoronary imagingFibrous plaquesHuman plaquesInflammationICG uptakeYucatan minipigsPlaquesArteryHistological validationStent struts
2015
GPU-Accelerated Framework for Intracoronary Optical Coherence Tomography Imaging at the Push of a Button
Han M, Kim K, Jang S, Cho H, Bouma B, Oh W, Ryu S. GPU-Accelerated Framework for Intracoronary Optical Coherence Tomography Imaging at the Push of a Button. PLOS ONE 2015, 10: e0124192. PMID: 25880375, PMCID: PMC4400174, DOI: 10.1371/journal.pone.0124192.Peer-Reviewed Original ResearchConceptsOptical coherence tomographyStent strutsCoherence tomographyIntracoronary OCT imagingLong coronary arteryCoronary artery diseaseCause of deathIntracoronary optical coherence tomographyImportant clinical toolRaw OCT dataOCT dataArtery diseaseCoronary arteryGPU-Accelerated FrameworkIntracoronary imagingFD-OCT imagesGraphics processing unitsAccurate diagnosisClinical tool
2014
Prognostic Implications of Initial Echocardiographic Findings in Adolescents and Adults with Supracristal Ventricular Septal Defects
Cho M, Jang S, Sun B, Jang J, Ahn J, Kim D, Song J, Kang D, Song J. Prognostic Implications of Initial Echocardiographic Findings in Adolescents and Adults with Supracristal Ventricular Septal Defects. Journal Of The American Society Of Echocardiography 2014, 27: 965-971. PMID: 24996557, DOI: 10.1016/j.echo.2014.05.016.Peer-Reviewed Original ResearchConceptsSupracristal ventricular septal defectVentricular septal defectOverall survival rateAortic regurgitationGroup 1Septal defectSurvival rateValsalva ruptureGroup 2High-risk echocardiographic featuresProgression-free survival ratesPerimembranous ventricular septal defectEvent-free rateInitial echocardiographic findingsSevere aortic regurgitationRetrospective observational studySinus of ValsalvaMain clinical eventsAR progressionEchocardiographic featuresEchocardiographic findingsHeart failurePediatric patientsPrognostic implicationsClinical events
2013
Differential long‐term outcomes of zotarolimus‐eluting stents compared with sirolimus‐eluting and paclitaxel‐eluting stents in diabetic and nondiabetic patients: Two‐year subgroup analysis of the ZEST randomized trial
Jang S, Park D, Kim W, Kim Y, Yun S, Kang S, Lee S, Lee C, Park S, Park S. Differential long‐term outcomes of zotarolimus‐eluting stents compared with sirolimus‐eluting and paclitaxel‐eluting stents in diabetic and nondiabetic patients: Two‐year subgroup analysis of the ZEST randomized trial. Catheterization And Cardiovascular Interventions 2013, 81: 1106-1114. PMID: 22899589, DOI: 10.1002/ccd.24603.Peer-Reviewed Original ResearchMeSH KeywordsAgedCardiovascular AgentsChi-Square DistributionCoronary AngiographyCoronary Artery DiseaseCoronary ThrombosisDiabetes MellitusDrug-Eluting StentsFemaleHumansKaplan-Meier EstimateMaleMiddle AgedMyocardial InfarctionPaclitaxelPercutaneous Coronary InterventionProportional Hazards ModelsProspective StudiesProsthesis DesignRepublic of KoreaRisk AssessmentRisk FactorsSirolimusTime FactorsTreatment OutcomeConceptsMajor adverse cardiac eventsPaclitaxel-eluting stentsZotarolimus-eluting stentsSirolimus-eluting stentsNondiabetic patientsDiabetic statusDiabetic patientsStent typeIschemia-driven target vessel revascularizationDifferential long-term outcomesLower ratesAdverse cardiac eventsComposite of deathTarget vessel revascularizationLong-term outcomesDifferential treatment effectsSimilar ratesAngiographic characteristicsIschemic complicationsCardiac eventsDiabetes mellitusPrimary outcomeMACE occurrenceStent groupMyocardial infarction
2012
Impact of heart failure with normal ejection fraction on the occurrence of ischaemic stroke in patients with atrial fibrillation
Jang S, Kim M, Park H, Han S, Kang D, Song J, Park S, Park S, Kim J. Impact of heart failure with normal ejection fraction on the occurrence of ischaemic stroke in patients with atrial fibrillation. Heart 2012, 99: 17. PMID: 22942291, DOI: 10.1136/heartjnl-2012-301980.Peer-Reviewed Original ResearchConceptsIschemic strokeNormal ejection fractionRisk of strokeAtrial fibrillationHeart failureEjection fractionNon-valvular atrial fibrillationChronic kidney diseaseDiabetes mellitusKidney diseaseFemale sexMyocardial infarctionEchocardiographic dataHFNEFTreatment weightingPropensity score methodsΒ-blockersPatientsStrokeInverse probabilityDeathFibrillationRiskScore methodFailureA unique pattern of extranodal involvement in Korean adults with sporadic Burkitt lymphoma: a single center experience
Jang S, Yoon D, Kim S, Yoon S, Kim D, Park C, Huh J, Lee S, Lee D, Ryu J, Suh C. A unique pattern of extranodal involvement in Korean adults with sporadic Burkitt lymphoma: a single center experience. Annals Of Hematology 2012, 91: 1917-1922. PMID: 22864762, DOI: 10.1007/s00277-012-1531-1.Peer-Reviewed Original ResearchMeSH KeywordsAcademic Medical CentersAdolescentAdultAgedAged, 80 and overBone Marrow ExaminationBone Marrow NeoplasmsBone NeoplasmsBurkitt LymphomaCohort StudiesFemaleFollow-Up StudiesGastrointestinal NeoplasmsHospitals, VeteransHumansMaleMiddle AgedNeoplasm StagingRepublic of KoreaRetrospective StudiesSurvival AnalysisTomography, X-Ray ComputedUrogenital NeoplasmsYoung AdultConceptsComplete response rateExtranodal involvementExtranodal sitesSporadic Burkitt lymphomaBurkitt's lymphomaClinical outcomesGenitourinary tractBone marrowTwo-year overall survival ratesResponse rateCentral nervous system involvementMore extranodal sitesNervous system involvementProgression-free survivalSingle-center cohortSingle-center experienceAsan Medical CenterOverall survival rateAdult Korean patientsNon-Hodgkin lymphomaBL patientsBaseline characteristicsOverall survivalCenter cohortCenter experienceAssociation of early systolic blood pressure response to exercise with future cardiovascular events in patients with uncomplicated mild-to-moderate hypertension
Cho M, Jang S, Lee C, Park C. Association of early systolic blood pressure response to exercise with future cardiovascular events in patients with uncomplicated mild-to-moderate hypertension. Hypertension Research 2012, 35: 922-927. PMID: 22534519, PMCID: PMC3434366, DOI: 10.1038/hr.2012.52.Peer-Reviewed Original ResearchConceptsFuture cardiovascular eventsBlood pressure responseCardiovascular eventsSustained hypertensionSystolic BPQuartiles 3New onset ischemic heart diseaseSurvival rateEvent-free survival rateSystolic blood pressure responseComposite end pointIschemic heart diseaseTarget heart ratePressure responseCause deathModerate hypertensionMultivariable adjustmentCardiovascular riskSBP responseUncomplicated mildPrimary outcomeQuartiles 1Heart diseaseMonitoring registryExercise test
2011
Fatal Rhabdomyolysis in a Patient with Liver Cirrhosis after Switching from Simvastatin to Fluvastatin
Baek S, Jang S, Park S, Ok T, Leem J, Lee H, Park S, Kim T. Fatal Rhabdomyolysis in a Patient with Liver Cirrhosis after Switching from Simvastatin to Fluvastatin. Journal Of Korean Medical Science 2011, 26: 1634-1637. PMID: 22148003, PMCID: PMC3230026, DOI: 10.3346/jkms.2011.26.12.1634.Peer-Reviewed Original ResearchConceptsFatal rhabdomyolysisLiver cirrhosisContinuous renal replacement therapyAcute renal failureRenal replacement therapyCoronary artery diseaseHMG-CoA reductase inhibitorsSerum creatine kinaseAsymptomatic elevationIntravenous furosemideRenal failureUrine alkalizationArtery diseaseHepatic failureReplacement therapyMassive hydrationRhabdomyolysisPatientsCirrhosisReductase inhibitorsCreatine kinaseAdverse effectsSimvastatinFluvastatinCandesartan