2024
Association Between High-Sensitivity Troponin (hs-cTnT) and Diagnosis of Myocarditis in Previously Healthy Pediatric Patients
Degen M, Leviter J, Bradley A, Karnik R, Ferdman D, McCollum S, Faherty E. Association Between High-Sensitivity Troponin (hs-cTnT) and Diagnosis of Myocarditis in Previously Healthy Pediatric Patients. Pediatric Cardiology 2024, 1-7. PMID: 39126513, DOI: 10.1007/s00246-024-03621-7.Peer-Reviewed Original ResearchDiagnosis of myocarditisPediatric patientsHs-cTnTTroponin levelsCardiac diagnosisHigh-sensitivity troponin THealthy pediatric patientsHigh-sensitivity troponinHs-cTnT groupMedian peak levelSensitivity troponin levelsElevated hs-cTnTCut-off valueInitial troponin levelMyocarditis diagnosisAcute myocarditisTroponin valuesCardiac troponinPediatric populationTroponin TMyocarditisPatientsPeak levelsDiagnosisMyocardial tissue
2023
Left ventricular strain in pediatric patients with bicuspid aortic valves and aortopathy
Frye R, Ittleman B, Shabanova V, Sugeng L, Steele J, Ferdman D, Karnik R. Left ventricular strain in pediatric patients with bicuspid aortic valves and aortopathy. Progress In Pediatric Cardiology 2023, 69: 101636. DOI: 10.1016/j.ppedcard.2023.101636.Peer-Reviewed Original ResearchBicuspid aortic valveLeft ventricular strainVentricular strainGlobal longitudinal strainGlobal circumferential strainAortic valvePediatric patientsEjection fractionLeft ventricle global longitudinal strainLeft ventricular global longitudinal strainBackground Bicuspid aortic valveVentricle global longitudinal strainSingle-center retrospective studyVentricular global longitudinal strainCommon congenital cardiac defectLongitudinal strainCircumferential strainAortic valve replacementNormal ejection fractionPrior cardiac interventionCongenital cardiac defectsYears of agePotential early markerLeft ventricular myocardiumSignificant differences
2015
A Smartphone Application to Diagnose the Mechanism of Pediatric Supraventricular Tachycardia
Ferdman DJ, Liberman L, Silver ES. A Smartphone Application to Diagnose the Mechanism of Pediatric Supraventricular Tachycardia. Pediatric Cardiology 2015, 36: 1452-1457. PMID: 25958154, DOI: 10.1007/s00246-015-1185-6.Peer-Reviewed Original ResearchConceptsAtrioventricular nodal reentrant tachycardiaAtrioventricular reentrant tachycardiaSupraventricular tachycardiaPediatric patientsReentrant tachycardiaHolter monitorNodal reentrant tachycardiaPediatric supraventricular tachycardiaChi-square testSingle-lead ECGPediatric electrophysiologistsProspective studyRetrograde P wavesSVT mechanismTachycardia mechanismCorrect diagnosisPatientsPairs of sinusesTachycardiaSmartphone applicationECG