What does P Mitrale mean?
P mitrale (left atrial abnormality) is an ECG finding of a P wave shaped like an M. Diagnostic criteria. there is notched or double peaked P wave in lead II. The notch is due to the delay of left atrial activation. the P wave duration is generally > 120ms (normal P wave duration should be < 120ms)
What is P Mitrale indicative of?
P-mitrale occurs when the depolarization of the right atrium and left atrium are both visible in the P wave. This is seen as a notch in the P wave and occurs when the left atrium is markedly enlarged, such as in mitral valve stenosis.
What does P wave morphology mean?
P waves indicate the result of atrial activation and may be broadly classified as concentric or eccentric. A P wave morphology identical to a sinus P wave suggests sinus tachycardia, inappropriate sinus tachycardia, sinoatrial nodal reentrant tachycardia, or AT arising close to the region of the sinus node.
Why is it called P Mitrale?
P mitrale: left atrial enlargement (hypertrophy, dilatation) The second hump in lead II becomes larger and the negative deflection in V1 becomes deeper. This is called P mitrale, because mitral valve disease is a common cause (Figure 1).
What is pseudo P Pulmonale?
• When the P pulmonale pattern is accompanied by typical ECG findings of hypokalemia, it might be pseudo due to hypokalemia. • Perhaps the cause of increase in P wave is partly due to the overlap of P wave and U wave.
What does P in AP Wave stand for?
Compressional waves are also called P-Waves, (P stands for “primary”) because they are always the first to arrive. Shear waves propagate more slowly through the Earth than compressional waves and arrive second, hence their name S- or secondary waves.
Why is it called P wave?
The P wave indicates atrial depolarization. The P wave occurs when the sinus node, also known as the sinoatrial node, creates an action potential that depolarizes the atria.
What does P wave inversion mean?
If the P wave is inverted, it is most likely an ectopic atrial rhythm not originating from the sinus node. Altered P wave morphology is seen in left or right atrial enlargement. The PTa segment can be used to diagnose pericarditis or atrial infarction.
What does a wide P wave mean?
If the p-wave is enlarged, the atria are enlarged. If the P wave is inverted, it is most likely an ectopic atrial rhythm not originating from the sinus node. Altered P wave morphology is seen in left or right atrial enlargement. The PTa segment can be used to diagnose pericarditis or atrial infarction.
What does a flattened P wave mean?
Absence of the P wave with a flat baseline may indicate: Fine atrial fibrillation. Sinoatrial arrest (with a secondary escape rhythm)