Lifelong learner. Electrophysiologist. Enjoys crossing bucket list items off that weren’t on the list, but should have. Geaux Tigers!
Minneapolis, MN
Joined October 2016
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John Nguyen retweeted
Pulmonary vein narrowing after voltage-guided adjunctive pulmonary vein sleeve pulsed field ablation
heartrhythmjournal.com/artic…
John Nguyen retweeted
Insane
Readers added context they thought people might want to know
The post contains invalid zipcode 32987 doesn’t exist and digitally altered or AI images
On adding the above items to cart on walmart.com - Miami Supercenter, the cost comes to $23.93 today in Oct 2026.
John Nguyen retweeted
Arrhythmogenic right ventricular cardiomyopathy: @ESC_Journals
🥸 It is a great to find one review on ARVD with all info in 1 place - congrats to authors great on great work
😱 Highlights are below (read full article)
👇👇👇
John Nguyen retweeted
This has to be the most chaotic FSD video on the Internet. 😆
📸 CORTEZ HEARNS

John Nguyen retweeted
“LSU is right, and you are all wrong”
A passionate rant from @TBob53 on the state of college football
John Nguyen retweeted
#AbbottProud to see the release of the 12-month data of the FlexPulse IDE for TactiFlex Duo. Grateful for the many scientific collaborators who came together to share these findings.
See the data: sl1nk.com/03kstz5 #LetsDuoIt #ESC2026
John Nguyen retweeted
Effect of Anterior vs Posterior Dispersive Patch Placement on Radiofrequency Ablation Lesion Size in Swine | JACC: Clinical Electrophysiology jacc.org/doi/10.1016/j.jacep…
John Nguyen retweeted
It’s heartbreaking to see, what happened to the Indian IC who posted an aorto-ostial dissection during RCA CTO on #CardioTwitter.
A genuine teaching case asking for senior opinions was met with mockery, sarcasm and personal attacks (and what should have been interesting discussion) -had to be deleted.
“Deploy two aortic stents + 3 ProGlides under sedation” type replies are not teaching and are nothing short of bullying.
These complications can happen to any of us. Interventional cardiology is unpredictable. Things can go south in seconds.
In many Indian centres, timely surgical backup is not the same as in high-resource Western setups ; cost and medico-legal realities matter.
We all lose when fear of ridicule replaces constructive discussion.
Teaching cases deserve respect IMO
sorry for the way #cardioX handled this
#CardioTwitter #MedTwitter
John Nguyen retweeted
Can reopening a chronic total occlusion (#CTO) make the heart electrically less prone to #ventricular #arrhythmias?
For years, small studies suggested the answer was yes.
We analyzed 7,496 ECGs from 1,232 patients undergoing 1,520 CTO PCIs using automated Python-based signal analysis.
Here's what we found... 🧵
John Nguyen retweeted
New Iconic Figure by Michel Haissaguerre, MD:
Initiation of ventricular fibrillation from the Purkinje system
heartrhythmjournal.com/artic…
John Nguyen retweeted
@EPeeps Excited to share #digitaltwins in #afib using patient-specific electrical, structural data to phenotype pro-arrhythmic regions + inform ablation @Mrodrigo_cardio @atulverma_md @nmarrouche @MoussaMansour10 @JonPicciniSr @ajrogers_md @sruiperez98 @BrototoD doi.org/10.1016/j.media.2026…
John Nguyen retweeted
#2
*⃣CIED reset and damage with Sphere-9 monopolar lattice-tip PFA (Nair et al.) @Drdevignair @VivekReddyMD
➡️ Case #1
✴️SVC PFA in a pt with CRT-D resulted in abrupt termination of energy delivery, temperature rise at the catheter, and irreversible loss of BiV pacing.
✴️CRT-D generator was non-interrogable & required replacement despite preserved lead integrity, strongly suggesting direct device-level injury;
➡️Case #2 - PFA PVI/CTI resulted in complete software reset of an Aveir AR leadless pacemaker, which subsequently recovered.
🧑🎓Monopolar energy delivery—where current travels between the catheter and surface electrodes—may facilitate energy coupling into adjacent conductive structures, resulting in either transient software effects or irreversible hardware disruption.
heartrhythmjournal.com/artic…
John Nguyen retweeted
(1) We have cases where PVCs are not produced on the table, particularly after sedation. @drrakeshg1 and I were able to prove a theory I have held for years regarding the MOA of outflow tract PVCs. Our workflow allows for identification of the trigger site when PVCs are absent.
John Nguyen retweeted
Endocardial entanglement was confirmed by using donor human hearts. Sufficient support of the delivery system is required to prevent endocardial entanglement @ducdoMD @HayaseJustin ahajrnls.org/3Q0SJTm
John Nguyen retweeted
🧵Surgical LAA exclusion is Class I recommendation in AF pts during cardiac surgery! But with prior #Watchman device, I wonder?
This Watchman (implanted 2016) was resected along with entire LAA during CABG for unrelated reason—surgeon preference. What would most surgeons do?
#Epeeps #CTSurgery #AFib #LAAO #CardioTwitter
John Nguyen retweeted
Endocardial pulsed field ablation of an inaccessible epicardial LV summit PVC
81-yo post-CABG patient → RF failed, no veins for alcohol, epicardial access impossible
Focal-bipolar PFA from inside the LV → instant PVC termination + full transmural scar on MRI + 100% PVC-free at 1 year
Full text available via this shareable link (before it expires): authors.elsevier.com/a/1m9p0…
