Difference between revisions of "P Wave Morphology"

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[[Image:Normaal ecg.jpg|thumb| An example of normal sinus rhythm.]]
 
[[Image:Normaal ecg.jpg|thumb| An example of normal sinus rhythm.]]
 
[[Image:Nsr.jpg|thumb| Another example of normal sinus rhythm.]]
 
[[Image:Nsr.jpg|thumb| Another example of normal sinus rhythm.]]
Characteristics of a normal p wave:<cite>Spodick</cite>
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{| class="Wikitable"
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! Characteristics of a normal p wave:<cite>Spodick</cite>
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*The maximal height of the P wave is 2.5 mm in leads II and / or III
 
*The maximal height of the P wave is 2.5 mm in leads II and / or III
 
*The p wave is positive in II and AVF, and bifasic in V1
 
*The p wave is positive in II and AVF, and bifasic in V1
 
*The p wave duration is usually shorter than 0.12 seconds
 
*The p wave duration is usually shorter than 0.12 seconds
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Elevation or depression of the [[PTa segment]] (the part between the p wave and the beginning of the QRS complex) can result from [[Ischemia#Atrial infarction|Atrial infarction]] or [[Clinical Disorders#Pericarditis|pericarditis]].
 
Elevation or depression of the [[PTa segment]] (the part between the p wave and the beginning of the QRS complex) can result from [[Ischemia#Atrial infarction|Atrial infarction]] or [[Clinical Disorders#Pericarditis|pericarditis]].

Revision as of 22:35, 5 January 2008

«Step 4:Heart axis Step 6: QRS morphology»


Author(s) J.S.S.G. de Jong, MD
Moderator J.S.S.G. de Jong, MD
Supervisor
some notes about authorship

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 normal P wave

Normal sinus rhythm with a positive p wave in leads I, II en AVF and a biphasic p wave in V1.
An example of normal sinus rhythm.
Another example of normal sinus rhythm.
Characteristics of a normal p wave:[1]
  • The maximal height of the P wave is 2.5 mm in leads II and / or III
  • The p wave is positive in II and AVF, and bifasic in V1
  • The p wave duration is usually shorter than 0.12 seconds

Elevation or depression of the PTa segment (the part between the p wave and the beginning of the QRS complex) can result from Atrial infarction or pericarditis.

If the p-wave is enlarged, the atria are enlarged.


Referenties

Error fetching PMID 1575201:
  1. Error fetching PMID 1575201: [Spodick]