2022
Frequency, predictors and cardiovascular outcomes associated with transthoracic echocardiographic findings during acute ischaemic stroke hospitalisation
Sharma R, Silverman S, Patel S, Schwamm LH, Sanborn DY. Frequency, predictors and cardiovascular outcomes associated with transthoracic echocardiographic findings during acute ischaemic stroke hospitalisation. Stroke And Vascular Neurology 2022, 7: 482-492. PMID: 35697387, PMCID: PMC9811598, DOI: 10.1136/svn-2021-001170.Peer-Reviewed Original ResearchConceptsStroke risk factorsAcute ischemic strokeStroke hospitalisationsTransthoracic echocardiographyRisk factorsClinical utilityAbnormal transthoracic echocardiographyHigh stroke riskCardiac event riskCoronary artery diseaseTransthoracic echocardiographic findingsNet reclassification improvementCategory ICardioembolic sourceRecurrent strokeTTE findingsCardiovascular outcomesEchocardiographic findingsCardiac eventsIschemic strokeOlder patientsStroke riskArtery diseaseSingle centerAtrial fibrillation
2020
Left Atrial Mechanics Assessed Early during Hospitalization for Cryptogenic Stroke Are Associated with Occult Atrial Fibrillation: A Speckle-Tracking Strain Echocardiography Study
Deferm S, Bertrand PB, Churchill TW, Sharma R, Vandervoort PM, Schwamm LH, Yoerger Sanborn DM. Left Atrial Mechanics Assessed Early during Hospitalization for Cryptogenic Stroke Are Associated with Occult Atrial Fibrillation: A Speckle-Tracking Strain Echocardiography Study. Journal Of The American Society Of Echocardiography 2020, 34: 156-165. PMID: 33132019, DOI: 10.1016/j.echo.2020.09.009.Peer-Reviewed Original ResearchMeSH KeywordsAtrial FibrillationEchocardiographyHeart AtriaHospitalizationHumansIschemic StrokeRetrospective StudiesStrokeConceptsMobile cardiac outpatient telemetryOccult atrial fibrillationBooster pump functionAtrial fibrillationCryptogenic strokeAtrial mechanicsStrain echocardiographyReservoir strainPump functionBaseline cardiovascular risk profileLA booster pump functionPresence of AFCardiovascular risk profileLA volume indexReceiver operator curve analysisOperator curve analysisSpontaneous cardioversionEmbolic strokeClinical characteristicsRetrospective cohortEchocardiography studyLA sizeMedian timeStroke hospitalizationsEchocardiography
2009
Cerebral Ischemic Events Associated With ‘Bubble Study’ for Identification of Right to Left Shunts
Romero J, Frey J, Schwamm L, Demaerschalk B, Chaliki H, Parikh G, Burke R, Babikian V. Cerebral Ischemic Events Associated With ‘Bubble Study’ for Identification of Right to Left Shunts. Stroke 2009, 40: 2343-2348. PMID: 19498192, DOI: 10.1161/strokeaha.109.549683.Peer-Reviewed Original ResearchConceptsCerebral ischemic eventsIschemic eventsPatent foramenBubble studyIschemic strokePulmonary shuntEarly brain MRIIschemic Cerebrovascular ComplicationsCryptogenic ischemic strokeTransient ischemic attackEvaluation of patientsPulmonary arteriovenous malformationsDegree of disabilitySaline intravenous injectionCerebrovascular complicationsIschemic attackInfarct volumeIschemic complicationsRare complicationAcute infarctionClinical featuresTransient symptomsTrue incidenceReporting of drugDevice complications
2003
Interatrial septal mobility predicts larger shunts across patent foramen ovales: An analysis with transmitral Doppler scanning
Fox E, Picard M, Chow C, Levine R, Schwamm L, Kerr A. Interatrial septal mobility predicts larger shunts across patent foramen ovales: An analysis with transmitral Doppler scanning. American Heart Journal 2003, 145: 730-736. PMID: 12679772, DOI: 10.1067/mhj.2003.5.Peer-Reviewed Original ResearchConceptsAtrial septal aneurysmCryptogenic strokeDegree of rightLarge shuntBubble scoreMitral inflow profileCerebral ischemic eventsEtiology of strokeRight atrial pressurePatent foramen ovaleSaline contrast studySize of shuntHigh-intensity signalIschemic eventsParadoxical embolismAtrial pressureConsecutive patientsSeptal aneurysmPatent foramenSeptal motionForamen ovaleRisk factorsContrast studiesDoppler scanningPatients
1999
Diffusion-Weighted Imaging Identifies a Subset of Lacunar Infarction Associated With Embolic Source
Ay H, Oliveira-Filho J, Buonanno F, Ezzeddine M, Schaefer P, Rordorf G, Schwamm L, Gonzalez R, Koroshetz W. Diffusion-Weighted Imaging Identifies a Subset of Lacunar Infarction Associated With Embolic Source. Stroke 1999, 30: 2644-2650. PMID: 10582991, DOI: 10.1161/01.str.30.12.2644.Peer-Reviewed Original ResearchConceptsLacunar syndromeSmall infarctsIdentifiable causeClinical syndromeCareful pathological studyClassic lacunar syndromeDWI hyperintense lesionsSingle lacunar infarctionBrain stem lesionsDay of admissionDistinct clinical syndromeDiffusion-weighted imagingMultiple infarctionsEmbolic mechanismEmbolic sourceArtery territoryClinical characteristicsLacunar infarctionSecondary preventionConsecutive patientsAcute lesionsIndex lesionSuch infarctsEmergency roomPathological studies