P Wave Morphology: Difference between revisions

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[[Image:normalSR.jpg|thumb|Normal sinus rhythm with a positive p wave in leads I, II en AVF and a biphasic p wave in V1.]]
[[Image:p_wave_morphology.png|thumb|Altered P wave morfology is seen in left or right atrial enlargement.]]
[[Image:pta_changes.svg|thumb|The PTa segment can be used to diagnose pericarditis or atrial infarction.]]


The ''p wave morphology'' can reveal right or left atrial stretch.
The ''p wave morphology'' can reveal right or left atrial stretch.


The P-wave morphology is best determined in leads II and V1 during sinus rhythm.
The P-wave morphology is best determined in leads II and V1 during sinus rhythm.
===The normal P wave===
[[Image:normalSR.jpg|thumb|Normal sinus rhythm with a positive p wave in leads I, II en AVF and a biphasic p wave in V1.]]
[[Image:Normaal ecg.jpg|thumb| An example of normal sinus rhythm.]]
[[Image:Nsr.jpg|thumb| Another example of normal sinus rhythm.]]
{| class="wikitable"
{| class="wikitable"
! Characteristics of a normal p wave:<cite>Spodick</cite>
! Characteristics of a normal p wave:<cite>Spodick</cite>
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If the P wave is inverted, it is most likely an [[ectopic atrial rhythm]] not originating from the sinus node.
If the P wave is inverted, it is most likely an [[ectopic atrial rhythm]] not originating from the sinus node.
{{clr}}
{{clr}}
 
==Examples==
 
<gallery>
Image:Normaal ecg.jpg|thumb| An example of normal sinus rhythm.
Image:Nsr.jpg|thumb| Another example of normal sinus rhythm.
</gallery>
==References==
==References==
<biblio>
<biblio>
#Spodick pmid=1575201
#Spodick pmid=1575201
</biblio>
</biblio>

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