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Ectopic Complexes: Difference between revisions
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→Ectopic pacemakers
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{| class="wikitable" | {| class="wikitable" | ||
|+ '''Cells that have pacemaker activity''' | |+ '''Cells that have pacemaker activity''' | ||
! cell || frequency | ! cell || frequency || QRS width | ||
|- | |- | ||
| ''SA node'' (not ectopic)|| 60-100 bpm | | ''SA node'' (not ectopic)|| 60-100 bpm || narrow | ||
|- | |- | ||
| ''Atrial || 55-60 bpm | | ''Atrial || 55-60 bpm || narrow | ||
|- | |- | ||
| ''AV Nodal ectopic pacemaker'' || 45-50 bpm | | ''AV Nodal ectopic pacemaker'' || 45-50 bpm || narrow | ||
|- | |- | ||
| ''His bundle'' || 40-45 bpm | | ''His bundle'' || 40-45 bpm || narrow | ||
|- | |- | ||
| ''Bundle branch'' || 40-45 bpm | | ''Bundle branch'' || 40-45 bpm || broad | ||
|- | |- | ||
| ''Purkinje cells'' || 35-40 bpm | | ''Purkinje cells'' || 35-40 bpm|| broad | ||
|- | |- | ||
| ''Myocardial cells'' || 30-35 bpm | | ''Myocardial cells'' || 30-35 bpm|| broad | ||
|- | |- | ||
|} | |} | ||