2. ID 478 – 58 year old man with a dilated cardiomyopathy
Can you see P waves?
3. ID 478 – 58 year old man with a dilated cardiomyopathy
Yes: The P waves originate from the sinus node– The rhythm is regular – Each P is followed by a
QRS - The PR interval is normal – The rate is 97/min
Normal sinus rhythm, 97/min
4. ID 478 –
As we are looking at the P waves, we notice that evidence for right atrial enlargement and left atrial
enlargement (biatrial enlargement) is present
Normal sinus rhythm, 97/min.
Biatrial enlargement
5. ID 478 – Sinus rhythm, 97/min
Biatrial enlargement
Left ventricular hypertrophy with repolarization abnormality
Let’s look at the QRS complex. The QRS axis is normal. The QRS duration is 90 msec. (normal) – There
are no signs of bundle branch block. There is evidence of left ventricular hypertrophy with ST abnormality.
6. ID 478 – Final diagnosis: Sinus rhythm, 97/min
Biatrial enlargement
Left ventricular hypertrophy
with repolarization abnormality
There are no signs of myocardial infarction
7. ID 478 – Final diagnosis: Sinus rhythm, 97/min
Biatrial enlargement
Left ventricular hypertrophy
with repolarization abnormality
There are no signs of myocardial infarction
