2013
Variable Selection and Prediction Using a Nested, Matched Case-Control Study: Application to Hospital Acquired Pneumonia in Stroke Patients
Qian J, Payabvash S, Kemmling A, Lev MH, Schwamm LH, Betensky RA. Variable Selection and Prediction Using a Nested, Matched Case-Control Study: Application to Hospital Acquired Pneumonia in Stroke Patients. Biometrics 2013, 70: 153-163. PMID: 24320930, PMCID: PMC3954429, DOI: 10.1111/biom.12113.Peer-Reviewed Original ResearchConceptsMassachusetts General HospitalCase-control studyStroke patientsAcute ischemic stroke patientsBrain regionsMatched Case-Control StudyHospital-Acquired PneumoniaIschemic stroke patientsLarge prospective studiesUnconditional logistic regressionCase-control designSpecific brain regionsAcquired PneumoniaAcute infarctionClinical featuresProspective studyClinical variablesGeneral HospitalEpidemiologic studiesPatientsModern imagingLarger studyLogistic regressionAppropriate statistical analysisHAP studiesHospital Acquired Pneumonia Is Linked to Right Hemispheric Peri-Insular Stroke
Kemmling A, Lev MH, Payabvash S, Betensky RA, Qian J, Masrur S, Schwamm LH. Hospital Acquired Pneumonia Is Linked to Right Hemispheric Peri-Insular Stroke. PLOS ONE 2013, 8: e71141. PMID: 23951094, PMCID: PMC3737185, DOI: 10.1371/journal.pone.0071141.Peer-Reviewed Original ResearchConceptsHemispheric infarctsBrain regionsConsecutive acute stroke patientsConditional logistic regression modelsHospital-Acquired PneumoniaRight hemispheric infarctAcute stroke patientsInsular cortex volumeVolume-based variablesSpecific brain regionsLogistic regression modelsAcquired PneumoniaControl patientsMajor complicationsBrainstem strokeImmune suppressionInfarct sizeStroke patientsAutonomic modulationClinical variablesAdmission imagingInfarct locationUnivariate analysisImmune mechanismsCortex volume
2006
Neuroanatomic correlates of stroke-related myocardial injury
Ay H, Koroshetz W, Benner T, Vangel M, Melinosky C, Arsava E, Ayata C, Zhu M, Schwamm L, Sorensen A. Neuroanatomic correlates of stroke-related myocardial injury. Neurology 2006, 66: 1325-1329. PMID: 16525122, DOI: 10.1212/01.wnl.0000206077.13705.6d.Peer-Reviewed Original ResearchMeSH KeywordsAgedAged, 80 and overBiomarkersBrain IschemiaCardiomyopathiesCase-Control StudiesCerebral CortexCerebral InfarctionDiffusion Magnetic Resonance ImagingFemaleHumansInfarction, Middle Cerebral ArteryMaleMiddle AgedMyocardial InfarctionMyocardiumNecrosisParietal LobeSingle-Blind MethodSympathetic Nervous SystemTroponin TConceptsCTnT elevationMyocardial injuryIschemic strokeRight middle cerebral artery infarctionSerum cardiac troponin T levelsCardiac troponin T elevationBrain regionsMiddle cerebral artery infarctionCardiac troponin T levelsPrimary cardiac causeTroponin T elevationAcute ischemic strokeTroponin T levelsCerebral artery infarctionCoronary artery diseaseSex-matched patientsRight inferior parietal lobuleSpecific brain regionsInferior parietal lobuleFrequency of rightBrain infarctionCardiac causesInfarction volumeSymptom onsetArtery disease