P wave

How do you explain the historical expression "mitral P"?

When the ECG was first introduced, rheumatic mitral valve stenosis caused by rheumatic fever (after streptococcal throat infection) was the most common cause of left atrial dilation in the Western world. For this reason, this ECG change was termed "mitral P". You may still come across this expression in the medical literature.

Ready to Master your ECG Skills ?

This is just a taste of our ecg course. Unlock your full course now !