P Wave Morphology

tapasta liacc4tchi

«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.

Characteristics of a normal p wave:Spodick

• 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

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1. Spodick pmid=1575201

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