|ECG 1 and ECG 2: Limb Leads Only|
I propose that this change is due to a simple reversal of two leads. If we take a look at our friend Einthoven's Triangle (we covered this in a previous post on the S5 Lead) we can see that this makes sense!
|LA/LL Swap: Einthoven's Triangle is "Flipped"|
What I find most interesting is if you compare every ECG except the first, it appears to be a case with subtle posteriolateral changes that may have been missed had there not been the lead reversal!