I am playing catchup on some of your previous posts. They are all so helpful, but this one caught me off guard. I’m afraid I would have shrugged my shoulders and assumed so mysterious mechanism made the AV node conduct faster for one beat. I would not have considered ventricular echo. Your explanation reminds me to rule OUT possibilities first. Thank you!
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I am playing catchup on some of your previous posts. They are all so helpful, but this one caught me off guard. I’m afraid I would have shrugged my shoulders and assumed so mysterious mechanism made the AV node conduct faster for one beat. I would not have considered ventricular echo. Your explanation reminds me to rule OUT possibilities first. Thank you!
Thanks, Dawn. The difference in the PR intervals is quite subtle!