CVPR Week 2: Bradycardia and Tachycardia Flashcards
Ablation
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3D mapping
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Pacemakers and defibrillators
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Intracardiac ultrasound
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left atrial appendage occlusion
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phases of ventricular action potentials
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ion movement during the ventricular action potential
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fast-sodium channels
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Transient outward current
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L-type Ca2+ current
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Delayed rectifier current
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Inward rectifier current
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Inward vs outward currents
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Automaticity
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Specialized cell types of cardiac muscle cells
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Cell types with intrinsic automaticity
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cell types with automaticity
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Sinus node location and structure
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Automaticity in the _______ determines the HR
SA node
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Conduction through the AV node
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Pacemaker action potentials
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AV Nodal behavior
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Intrinsic rates and escape rhythms
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Sympathetic stimulation on the heart
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parasympathetic stimulation effects on the heart
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automaticity modulation
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Action potential propagation
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Sinus bradycardia
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Sinus node dysfunction
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Sinus arrest
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Sinoatrial block
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Parasympathetic stimulation: carotid sinus massage
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First degree AV block
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First degree AV block
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AV Block Mobitz Type I
AKA Wenkebach
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Second degree AV block
Wenkebach
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Second degree AV block Mobitz type II Wenkebach
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Second degree AV block Mobitz type II Wenkebach ECG
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Second degree AV block 2:1 AV conduction
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Second degree AV block 2:1 AV conduction ECG
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Third degree AV block
complete AV block
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Third degree AV block
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Third degree AV block ECG
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Third degree AV block ECG
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Atrio-ventricular dissociation
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Atrio-ventricular dissociation ECG
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Atrio-ventricular dissociation
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Cellular mechanisms of tachycardia
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Automaticity
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Types of pathologic automatic tachycardia
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ECG
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Automatic tachycardias
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ECG
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Triggered arrhythmias
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Premature beats
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Early and delayed after-depolarizations
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Early After-depolarizations
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EAD
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EAD ECG
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Arrhythmias of EAD
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Arrhythmias of EAD
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Torsade Du Pointes
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Very EAD
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DAD Mechanism
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Arrhythmias of DAD
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Re-entrant Arrhythmias
4 listed
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Requirements for Re-entry
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Re-entry
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Atrial flutter
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Atrial Flutter
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ECGs
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Ventricular tachycardia
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Describe
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Atrial Fibrillation
spiral waves
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AVNRT and AVRT
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AV Nodal Reentry tachycardia
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AVNRT ECG
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AVNRT ECG
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AVNRT
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AVNRT Circuit
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Describe
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Wolff-Parkinson-White Syndrome
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OVerdrive suppression?
AVRT
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AVRT ECG
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AVRT ECG
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AVRT ECG
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AVRT
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AVRT
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What is the most common indication for pacemaker implantation?
Sinus Node dysfunction
Sinus Node dysfunction is commonly associated with
Atrial fibrilation
Which nodal cells are more sensitive to ANS regulation
- Superior nodal cells have faster conduction and are more sensitive to ANS regulation
- Inferior nodal cells have slower conduction and are more resistant to ANS control
Vagal stimulation of the AV node can
prolong PR interval
A wide QRS is suggestive of?
A conduction system defect