Alright, now that we've talked about ventricular arrythmias, let's take a case.
Here's a 40-year-old vigorous female.
She's seen in the office and complains about occasional 'extra heart beats'.
She feels her heart going flip flop. Feels like the heart's doing somersaults and then pausing.
So, she has palpitations and here's her ECG.
Look at the ECG and see if you can recognize what's going on.
Notice that there are extra beats occurring early and that the QRS is very differently oriented
and different shape from the normal rhythm.
And the ST segment is in the opposite direction.
If you looked at the rhythm strip down at the bottom, you'll see first there's the standard
and then you'll see normal beat, normal beat PVC.
Normal beat, normal beat PVC. Normal beat, normal beat PVC.
Notice QRS is wide, very different from the normal beat, and the ST and T wave
are oppositely directed from the direction that the QRS is taking.
So, these are single, premature ventricular contractions
and are usually benign in the absence of heart disease.
Sometimes if the patients has been drinking a lot of coffee, taking a lot of caffeine,
the patient has been smoking, or the patient has been excited or frightened,
you will see some PVCs. They can be benign.
Thank you very much for attending this lecture.
I look forward to talking with you in the next one.