Jeffrey M Vinocur
@jeffreyvinocur.bsky.social
900 followers 72 following 220 posts
Pediatric/congenital electrophysiologist. Lapsed computer scientist. #ZeroFluoro. Views are my own, and not medical advice.
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Reposted by Jeffrey M Vinocur
narrowqrs.bsky.social
2 hearts.
Mom?
Ecg tech?
jeffreyvinocur.bsky.social
#EPeeps This baby's ECG has one of my favorite findings
jeffreyvinocur.bsky.social
So here's the mind-bending part. The ventricular lead is two unipolar screw-in leads with a Y adapter. So then have we localized to the adapter?

I did not think of the tip migrating hypothesis. But they are chronic screw-in leads. Actually did not re-image but here is an old film
jeffreyvinocur.bsky.social
Those strips were from programmer and I agree signal dropout can occur. But we previously had VHR episodes capturing abnormal device behavior (third one is example of how normal paced beat appears on the ring channel; this is unipolar pacing).

My best idea is intermittent short between tip and ring
jeffreyvinocur.bsky.social
#EPeeps Very unusual tracings from epicardial pacemaker - mirror noise all well and good, but has anyone seen bipolar go flat like this? Note carefully EGM configuration.

@narrowqrs.bsky.social
Reposted by Jeffrey M Vinocur
cciari1.bsky.social
Bilateral arm-leg reversal IMO
jeffreyvinocur.bsky.social
In line at coffee shop and silently cracking up randomly remembering the day somebody put hazelnut beans in the espresso machine
jeffreyvinocur.bsky.social
#EPeeps Don't see this so often!
jeffreyvinocur.bsky.social
#EPeeps Pacemaker patient reporting two weeks of fatigue

#IYKYK @narrowqrs.bsky.social
jeffreyvinocur.bsky.social
Such a convincing dot plot for a real pause and yet totally undersensing.
jeffreyvinocur.bsky.social
#EPeeps What do you think from the dot plot? Then see below.
Reposted by Jeffrey M Vinocur
narrowqrs.bsky.social
Click BP tracing to expand.
What do you think the heart rhythm is before and after the transition?
jeffreyvinocur.bsky.social
#EPeeps My best trick for right anterior/anterolateral pathways is to use SR0, flex catheter until it points straight down, advance sheath to SVC-RA junction, and unflex onto the annulus.

You see the angle achieved in Fig 1…you have to take my word for the stability but often better than IJ access.
jeffreyvinocur.bsky.social
#EPeeps I am strangely amused by this. Epicardial pacemaker with failing atrial lead, left in place as VVI backup in case of dislodgement of new transvenous system. "V sensing episode" corresponds to interrogation of new system:
Reposted by Jeffrey M Vinocur
cciari1.bsky.social
Possibly PVC with retroconduction ➡️ atrial capture failure (or due to atrial refractoriness?➡️ VA conduction ➡️pacemaker syndrome.Are the narrow QRSs paced?
jeffreyvinocur.bsky.social
#EPeeps Guess what we induced next? #ILAM
jeffreyvinocur.bsky.social
Never seen this with temporary pacing! Admittedly we normally do AAI for sinus node dysfunction.
Reposted by Jeffrey M Vinocur
narrowqrs.bsky.social
Patient is s/p cardiac surgery with temporary epicardial wires in place. This pacing behavior was seen back and forth, also correlating with 15-20 mmHg systolic BP changes.
What could be done to prevent this from happening?
@jeffreyvinocur.bsky.social
jeffreyvinocur.bsky.social
Did the computer read it as borderline QTc? 😂
Reposted by Jeffrey M Vinocur
narrowqrs.bsky.social
Patient admitted with leg injury. No history of syncope. No family history of sudden death. Any concerns?
@jeffreyvinocur.bsky.social
jeffreyvinocur.bsky.social
#EPeeps Always take the opportunity to review the classics #HoltOramSyndrome
jeffreyvinocur.bsky.social
#EPeeps Are people replacing advisory SICD leads at time of gen change?