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Ectopic Complexes: Difference between revisions
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→Ectopic pacemakers
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{| class="wikitable" | {| class="wikitable" | ||
|+ '''Heart cells with pacemaker activity''' | |+ '''Heart cells with pacemaker activity''' | ||
! Celltype || Frequency || QRS width | ! Celltype || Frequency || QRS width (*) | ||
|- | |- | ||
| ''SA node'' (not ectopic)|| 60-100 bpm || narrow | | ''SA node'' (not ectopic)|| 60-100 bpm || narrow | ||
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|- | |- | ||
|} | |} | ||
* QRS width can only be narrow if the conduction system downstream is normal (i.e. no bundle branch block) | |||
===Examples=== | ===Examples=== | ||