<Tr> <Td> </Td> <Td> This article needs additional citations for verification . Please help improve this article by adding citations to reliable sources . Unsourced material may be challenged and removed . (February 2016) (Learn how and when to remove this template message) </Td> </Tr> <P> The P wave is a summation wave generated by the depolarization front as it transits the atria . Normally the right atrium depolarizes slightly earlier than left atrium since the depolarization wave originates in the sinoatrial node, in the high right atrium and then travels to and through the left atrium . The depolarization front is carried through the atria along semi-specialized conduction pathways including Bachmann's bundle resulting in uniform shaped waves . Depolarization originating elsewhere in the atria (atrial ectopics) result in P waves with a different morphology from normal . </P> <P> Peaked P waves (> 0.25 mV) suggest right atrial enlargement, cor pulmonale, (P pulmonale rhythm), but have a low predictive value (~ 20%). </P> <P> AP wave with increased amplitude can indicate hypokalemia . It can also indicate right atrial enlargement . </P>

What part of the heart has an anomaly of the p wave is abnormal on an ecg