4,199
edits
Atrial Premature Complexes: Difference between revisions
m
no edit summary
mNo edit summary |
mNo edit summary |
||
| Line 3: | Line 3: | ||
[[Image:Bes.png|thumb| A premature atrial complex (PAC) with evident negative p-wave]] | [[Image:Bes.png|thumb| A premature atrial complex (PAC) with evident negative p-wave]] | ||
Premature atrial complexes origin from an ectopic pacing region in the atria. They are an example of [[Ectopic Beats|ectopic beats]]. The result is a p-wave with often a different morphology as the preceding ones. | Premature atrial complexes origin from an ectopic pacing region in the atria. They are an example of [[Ectopic Beats|ectopic beats]]. The result is a p-wave with often a different morphology as the preceding ones. | ||
A premature atrial complexe is usually followed by a '''compensatory pause''' caused by the fact that atrial depolarization enters the sinus node and resets the sinus rhythm. | A premature atrial complexe is usually followed by a '''compensatory pause''' caused by the fact that atrial depolarization enters the sinus node and resets the sinus rhythm. | ||