basic cardiac pacing claire regan msc chief cardiac physiologist uhsm 2009
TRANSCRIPT
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Basic Cardiac Pacing
Claire Regan MSc
Chief Cardiac Physiologist
UHSM
2009
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A Pacemaker!
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What is a Pacemaker?
A pacemaker is an electronic device implanted in the body to regulate the heart beat.
It consists of a battery and electronic circuits enclosed in a hermetically sealed can.
The pacemaker delivers electrical stimuli over leads with electrodes in contact with the heart.
(‘Cardiac Pacemakers Step by Step’ – S.Serge Barold, Roland X. Stroobandt, Alfons F. Sinnaeve).
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Atrial and Ventricular Leads
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Lead Detail
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RA and RV Leads
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RA Septum/RVOT Leads
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Pacemaker Code
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Unipolar
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Bipolar
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Reasons for Implanting AAI
Sinus Node Dysfunction. Sick Sinus Syndrome in the absence of
known or anticipated AV block.
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Contraindications for AAI
Heart Block known or anticipated. Atrial Tachyarrhythmias. Neurally Mediated Syncope.
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AAI
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AAIR
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AAI Pacing
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AAI Pacing
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Reasons for Implanting VVI
Chronic Atrial Tachyarrhythmias.
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Contraindications for VVI
Heart Failure. Left Ventricular Systolic or Diastolic
Dysfunction. Neurally Mediated Syncope.
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VVI
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VVIR
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VVI Pacing
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VVI Pacing (Bipolar – RVA)
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Ventricular Pacing (Unipolar - RVOT)
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Reasons for Implanting DDD
♥ AV block
♥ Chronic Bi/Trifascicular block
♥ Sinus Node Dysfunction
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Contraindications for DDD
♥ Heart Failure
♥ Chronic Atrial Tachyarrhythmias
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DDD
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DDDR
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AV (DDD) Pacing
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AV (DDD) Pacing
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References
• Barold, S. S., Stroobandt, R. X., Sinnaeve, A. F. (2004). Cardiac Pacemakers Step by Step. USA: Blackwell Futura.
• Bennett, D. H. (2007). Cardiac Arrhythmias. London: Hodder Arnold.
• Ellenbogen, K. A., Wood, M. A. (2002). Cardiac Pacing and ICD’s. USA: Blackwell Science.
• Hayes, D. L., Lloyd, M. A., Friedman, P. A. (2000). Cardiac Pacing and Defibrillation: A Clinical Approach. USA: Futura Publishing Company.
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Any Questions?