Sinoatrial block: Difference between revisions

Latest revision as of 06:36, 30 March 2011

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-= Sinoatrial Block (SA Block) =
+#REDIRECT [[Sino-atrial exit block]]
-{|
-|+ During the event
-|-
-|Rate || Normal to slow || Defined by duration of frequency of block
-|-
-|Rhythm || Irregular when a block occurs
-|P wave || Upright and uniform, except during the dropped beat
-|PR interval || Normal (0.12 - 0.20 sec), except during the dropped beat
-|QRS || Normal (0.06 - 0.10 sec), except during the dropped beat
-|}
-- Cardiac output will decrease, possibly causing syncope or dizziness.
-- Occurs in some multiple of the PP interval.
-- After dropped beat, cycles continue on time.