What's up with these PR intervals?

[timn]

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Hi guys,

I'm not a cardiologist, but think this ECG looks weird. I don't know which lead it is from, but what I find weird is that after the T wave, the baseline doesn't recover until after the next QRS complex. Is there any lead where this is to be expected?

Of course no diagnosis can be made from a single unknown lead, but is this morphology wrong or expected?

By the way, sorry I couldn't get the neat millisecond grid you're all used to 🙁

 

[Dapado33]

I don't know which lead it is from, but what I find weird is that after the T wave, the baseline doesn't recover until after the next QRS complex.]

I think you have that backwards. The normal baseline is after the T wave and before the P wave. After the QRS and before the T wave, the baseline is depressed (ST depression). Sorry if I misinterpreted your question.

 

[Packman2003]

I think you have that backwards. The normal baseline is after the T wave and before the P wave. After the QRS and before the T wave, the baseline is depressed (ST depression). Sorry if I misinterpreted your question.

This is right. It is just ST depression.

 

[timn]

Ah, I get it. Thanks!

Any idea how I can see if it's a significant ST depression since I can't measure how many mm it is? Is there anything else to compare it to?

 

[officedepot]

.

 

[Dapado33]

I think this is the THIRD thread you, OP, posted about EKGs and asking for help. You need to do your own homework. Stop creating new account profiles to ask each question. It is against the rules.

I also think you did the same thing with an EEG earlier because the reading is in the same format. This needs to stop.

Are you saying he's the same person as that Manchester United guy who kept posting EKGs? I wouldn't have helped him if I'd known he was a United fan.

 

[LoveandHate]

I think this is the THIRD thread you, OP, posted about EKGs and asking for help. You need to do your own homework. Stop creating new account profiles to ask each question. It is against the rules.

I also think you did the same thing with an EEG earlier because the reading is in the same format. This needs to stop.

Yup same format as the previous EEG homework help question. Possibly different screen name

 

[timn]

I think this is the THIRD thread you, OP, posted about EKGs and asking for help. You need to do your own homework. Stop creating new account profiles to ask each question. It is against the rules.

I also think you did the same thing with an EEG earlier because the reading is in the same format. This needs to stop.

Certainly not. I posted an EEG question a couple of weeks ago (from this user), and this is the first ECG thread I've ever posted (second thread over all). Any moderator could compare the IPs, we're probably even in different countries. Please don't accuse me of being a United fan.

Also, neither of these two are my homework. The homework related to them is completely different (find the pulse for the ECG, find the interesting intervals of the EEG), I'm just curious and figured it would be a better idea to ask someone here rather than spend a year learning to interpret ECGs or ten years becoming a neurosurgeon.

 

[theubiquinator]

The rate is around 80, so it is probably not rate related ST change. I am not familiar with this type of scaled paper but even if it were corrected and put on standard ecg paper the QRSs seem like they would still be very narrow and tall, which is like a pediatric EKG, of a newborn with post-natal RVH and normal ST changes secondary to that. There is also RAE.

 

[Dapado33]

Please don't accuse me of being a United fan.