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Category:Impulse Conduction Abnormalities (view source)

Revision as of 09:50, 2 July 2010

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===1. SA Block===
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|pagetitle =Impulse Conduction Abnormalities
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<categorytree mode=pages>Impulse Conduction Abnormalities</categorytree>
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*The delay (sinus block) or failure (sinus arrest) of the sinoatrial node to conduct impulses.
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*SA Block=when an impulse does not leave the SA node
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*SA Arrest=momentary failure in the SA node to start an impulse causes a pause in the normal cardiac cycle
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[[Sino-Atrial Block]]
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====Causes====
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Sick sinus syndrome, electrolyte imbalances, atrial diseases, hypothyroidism etc.
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'''ECG Appearance:''' Absence of P-QRS-T complexes for a brief period of time
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-Sinus block=no P-QRS-T complexes for twice the R-R interval
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-Sinus arrest=no P-QRS-T complexes for greater than two R-R intervals
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====Treatment====
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Treat the underlying causes; atropine etc., surgical implantation of a pacemaker
      
===2. AV Block===  
 
===2. AV Block===  
Bara
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