ECG Quiz, Focusing Mainly on Rhythm

Here is the transcript of the video: Now we will have an ECG, focusing mainly on the rhythm analysis. That is what we are going to see. Clinical history is currently not available, let us see, what we can make out from the ECG. If you have a look at this ECG, sometimes, in this region, you may pass off it as just a low normal heart rate with nothing else. But careful analysis in this region will easily tell you that, this is one P wave with a fairly normal PR interval. But you have another P wave here, which is not conducted. So, for two P waves, you have one QRS. You might be tempted to think that this is 2:1 AV block. Then there are T wave inversions. What could be the reason for that T wave inversions? Have a look at this rhythm strip. You can very well see that it is not as simple as you thought. It is not a 2 to 1 AV block. There is a lot of variation in the PR interval. This is a near normal PR interval, you have a blocked P wave superimposed on the T wave here as in this case, and another P wave here, very long PR interval, a slight prolongation of PR interval, long PR interval, a medium prolongation, very long PR interval, a slight prolongation of PR interval, very long PR interval. So there is total variation in the PR interval and the heart rate is around 60 per minute. But the rate of P wave is higher. It is nearly, a little lower than 100 per minute. So, overall it will qualify for a complete atrioventricular block, complete heart block. T inversion being a narrow...
Source: Cardiophile MD - Category: Cardiology Authors: Tags: General Cardiology Source Type: blogs