032623
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What is your ECG dx? Poll next
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From the📦/📧 by a 🫂
Difficulty level (out of 5⭐️): ⭐️⭐️⭐️
What is your ECG dx? Poll next
#FOAMed
#MedEd
#MedTwitter
#CardioTwitter
#EPeeps
What is your ECG dx?
🐦 ur reply if none of the 4 choices
🐦 ur reply if none of the 4 choices
1/
Thanks for all the replies. This is a normal pacemaker (PM) function. Here I annotated the PM events.
1-4 - AP with prolonged AV conduction
4- AP with loss of AV conduction (x)
5- AVP with a pace-AV interval of about 80 ms (Ventricular back-up)
Thanks for all the replies. This is a normal pacemaker (PM) function. Here I annotated the PM events.
1-4 - AP with prolonged AV conduction
4- AP with loss of AV conduction (x)
5- AVP with a pace-AV interval of about 80 ms (Ventricular back-up)
2/
6 - AP with loss of AV conduction (x)
7- AVP with a pace-AV interval of ~80 ms (Ventricular back-up)
8 - AVP with a pace-AV interval of ~ 200 ms
9- AVP with a pace-AV interval of ~40 ms (Pace AV)
10- AVP with a pace-AV interval of ~ 200 ms
6 - AP with loss of AV conduction (x)
7- AVP with a pace-AV interval of ~80 ms (Ventricular back-up)
8 - AVP with a pace-AV interval of ~ 200 ms
9- AVP with a pace-AV interval of ~40 ms (Pace AV)
10- AVP with a pace-AV interval of ~ 200 ms
3/
11- AVP with a pace-AV interval of ~ 200 ms
12- AVP with a pace-AV interval of ~40 ms (Pace AV)
13- AVP with a pace-AV interval of ~ 200 ms
So, the PM in 1-7 is in AAI mode then after the loss of AV conduction (x events), the PM switches to DDD mode.
11- AVP with a pace-AV interval of ~ 200 ms
12- AVP with a pace-AV interval of ~40 ms (Pace AV)
13- AVP with a pace-AV interval of ~ 200 ms
So, the PM in 1-7 is in AAI mode then after the loss of AV conduction (x events), the PM switches to DDD mode.
4/
However, during loss of AV conduction, back-up pacing is delivered by the PM.
In events 8-13, the PM is in DDD mode. This behavior can be seen Managed Ventricular Pacing (which is unique for Medtronic device).
However, during loss of AV conduction, back-up pacing is delivered by the PM.
In events 8-13, the PM is in DDD mode. This behavior can be seen Managed Ventricular Pacing (which is unique for Medtronic device).
5/
However, there are PAV events that is really short (9 & 12). This behavior was not described in the original MVP. This must be the "enhancement" made is newer pacemakers.
I think our 🐦friends from @Medtronic can shed light on this.
Oh the device was Medtronic - Azure.
However, there are PAV events that is really short (9 & 12). This behavior was not described in the original MVP. This must be the "enhancement" made is newer pacemakers.
I think our 🐦friends from @Medtronic can shed light on this.
Oh the device was Medtronic - Azure.
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