Introduction to Clinical Electrophysiology and the ECG A slide presentation prepared by Michael Mazzini, MD, Massachusetts General Hospital. Contributor(s) Click To Begin This Training Module LessonsLesson #1: IntroductionLesson #2: Ion MovementLesson #3: Basic ElectrophysiologyLesson #4: ElectrocardiologyLesson #5: Electrocardiogram-IntroLesson #6: 12 Lead ECGLesson #7: ECG Limb LeadsLesson #8: 12 Lead ECG InterpretationLesson #9: Determining Heart RateLesson #10: RhythmLesson #11: QRS AxisLesson #12: IntervalsLesson #13: QRS ComplexLesson #14: ST Segment & T WaveLesson #15: Bundle Branch BlockLesson #16: Ventricular HypertrophyLesson #17: Atrial EnlargementLesson #18: Premature BeatsLesson #19: References LessonsIntroduction.Ion Movement.Basic Electrophysiology.Electrocardiology.Electrocardiogram-Intro.12 Lead ECG.ECG Limb Leads.12 Lead ECG Interpretation.Determining Heart Rate.Rhythm.QRS Axis.Intervals.QRS Complex.ST Segment & T Wave.Bundle Branch Block.Ventricular Hypertrophy.Atrial Enlargement.Premature Beats.References.