2009
Multicenter randomized study of anticoagulation guided by remote rhythm monitoring in patients with implantable cardioverter-defibrillator and CRT-D devices: Rationale, design, and clinical characteristics of the initially enrolled cohort The IMPACT study
Ip J, Waldo AL, Lip GY, Rothwell PM, Martin DT, Bersohn MM, Choucair WK, Akar JG, Wathen MS, Rohani P, Halperin JL, Investigators F. Multicenter randomized study of anticoagulation guided by remote rhythm monitoring in patients with implantable cardioverter-defibrillator and CRT-D devices: Rationale, design, and clinical characteristics of the initially enrolled cohort The IMPACT study. American Heart Journal 2009, 158: 364-370.e1. PMID: 19699858, DOI: 10.1016/j.ahj.2009.07.002.Peer-Reviewed Original ResearchConceptsAtrial high-rate episodesRisk of strokeAnticoagulant therapyAtrial fibrillationAtrial flutterCardiac resynchronization therapy-defibrillator deviceConventional clinical managementRemote rhythm monitoringStudies of anticoagulationRate of strokeOral anticoagulant therapyHigh-rate episodesAdditional risk factorsCRT-D devicesStroke risk stratificationCommon cardiac arrhythmiaAHRE burdenElectrocardiographic documentationMajor bleedingSystemic embolismProphylactic therapyClinical characteristicsStroke riskAnticoagulation decisionsClinical featuresElectroanatomic mapping of postpacing intervals clarifies the complete active circuit and variants in atrial flutter
Santucci PA, Varma N, Cytron J, Akar JG, Wilber DJ, Chekakie M, Brysiewicz N. Electroanatomic mapping of postpacing intervals clarifies the complete active circuit and variants in atrial flutter. Heart Rhythm 2009, 6: 1586-1595. PMID: 19879536, DOI: 10.1016/j.hrthm.2009.08.010.Peer-Reviewed Original ResearchConceptsTricuspid annulusAtrial flutterIsthmus-dependent atrial flutterFlutter cycle lengthPosterior borderTypical atrial flutterRight atrial appendageEntire right atriumFlutter circuitAtrial appendageRight atriumVena cavaElectroanatomic mappingElectroanatomic mapsOblique courseCycle lengthPatientsSimilar activationActivation mappingAnteriorFlutterActivationIntervalCavaAtrium
2007
Surface Electrocardiographic Patterns and Electrophysiologic Characteristics of Atrial Flutter Following Modified Radiofrequency MAZE Procedures
AKAR JG, AL‐CHEKAKIE M, HAI A, BRYSIEWICZ N, PORTER M, VARMA N, SANTUCCI P, WILBER DJ. Surface Electrocardiographic Patterns and Electrophysiologic Characteristics of Atrial Flutter Following Modified Radiofrequency MAZE Procedures. Journal Of Cardiovascular Electrophysiology 2007, 18: 349-355. PMID: 17394449, DOI: 10.1111/j.1540-8167.2007.00761.x.Peer-Reviewed Original ResearchConceptsCavo-tricuspid isthmusIsthmus ablationAtrial flutterElectrophysiological characteristicsElectrophysiological studiesECG appearanceCox maze III procedureIsthmus-dependent right atrial flutterRadiofrequency maze procedureSurface electrocardiographic patternsMitral isthmus ablationRight atrial flutterDiagnostic electrophysiological studyShorter cycle lengthsLA flutterPostoperative arrhythmiasRadiofrequency mazeCardiac surgeryConsecutive patientsAtrial circuitsAtrial fibrillationElectrophysiologic characteristicsSinus rhythmSurgical lesionsElectrocardiographic pattern
2001
Coexistence of type I atrial flutter and intra-atrial re-entrant tachycardia in patients with surgically corrected congenital heart disease
Akar J, Kok L, Haines D, DiMarco J, Mounsey J. Coexistence of type I atrial flutter and intra-atrial re-entrant tachycardia in patients with surgically corrected congenital heart disease. Journal Of The American College Of Cardiology 2001, 38: 377-384. PMID: 11499727, DOI: 10.1016/s0735-1097(01)01392-4.Peer-Reviewed Original ResearchConceptsIntra-atrial re-entrant tachycardiaIsthmus-dependent atrial flutterCongenital heart diseaseRe-entrant tachycardiaAtrial flutterHeart diseaseType I atrial flutterSurface electrocardiogramInferior vena cavaSlow conduction zoneRe-entrant tachyarrhythmiasLateral right atriumAtriotomy scarCoexistent arrhythmiaIART recurrenceConsecutive patientsAtrial tachyarrhythmiasProcedural complicationsSupraventricular tachyarrhythmiasFurther recurrenceSuccessful ablationRight atriumVena cavaSurgical correctionEntrainment mapping