Mason McNeil

Over 500ms of fractionated EGMs across #HDGrid, capturing entirety of TCL during this left atrial flutter. Hx cryo PVI. credit @DrSSahaCardio

High-density vs point-by-point mapping in ventricular tachycardia ablation: A comparative analysis of substrate characterization, by @adrian_petzl and colleagues @PennMedicine @AbbottNews @MedUnivSC #EPeeps heartrhythmopen.com/article/S2666-…

Stephon Castle tonight: • 16 PTS, 11 AST, 4 BLKS all while holding Cade to 5/26 shooting

Wemby dropped 25 Points in 8 minutes ON THE LAKERS HOME FLOOR 😭 This is Wemby’s house now lmfaooo

Challenging 3D VT ablation where pt had previously undergone two ablations including bipolar RF and dual energy on another mapping system. Extensive endo and epicardial mapping and long endocardial lesions resulted in VT termination and noninducibility. #3DVT #intramuralsubstrate

I tried to tell you

@peterkistler3 @drjohnm The problem is not the ablation method thermal or non-thermal, RF or PFA. As with WACA, the real issue is that you can’t truly demonstrate transmurality. Moreover, the posterior wall is particularly challenging due to the thick septopulmonary epicardial fibers.

What’s the obsession with PWI in AF ablation? It may appear “safe & easy” ⁦@drjohnm⁩ BUT no randomised evidence & there is downside #TWIC Oct 10

Great talk @DJ_Lakkireddy on important limitations of PFA outside of the veins. Single digit long term durability in La Fazia et al. Dual energy sources can’t come soon enough for redo ablations. There need not be discussions with current PFA iterations for VT. ahajournals.org/doi/10.1161/CI…

PFA with the pentaspline catheter achieves acute CS, LAA isolation and MI block, but lesion durability is poor at 3-month remapping @luigidibiasemd @aalahmadmd @giuseppe.stifano @WeeBodeMD @_nicolapierucci @dogi84md #AHAJournals #Epeeps doi.org/10.1161/CIRCEP…

An ideal outcome. A single morphology with bigeminal burden. PVC with an ATV3 morphology, localized and ablated at RCC/LCC commissure (65 msec pre QRS). Credit: @Ashit_EPS @isabelmauckEP @AbbottCardio #EnSite #TactiFlex #ViewFlex

Here is the video of PFA delivered near a LAA occlusion device

@JRWinterfield @AbbottCardio @BrysonTindal Awesome case and ILAM map narrowing our ablation target. From being induced with singles to non-inducible at triples, great outcome.

Endo-epicardial Transmural Lesion Formation Utilizing Multipolar Radiofrequency Ablation heartrhythmjournal.com/article/S1547-…

A life changed. Young adult debilitated with frequent syncopal events. 5 months, symptom free post Cardioneural Ablation @Ashit_EPS. #GridX with OT Near Field, Fractionation & Peak Frequency Emphasis overlay enhanced localization of GP's. #CNA #Syncope #EPeeps #CardioTwitter @MDTolgaAksu @AbbottCardio

Do you really wonder the best GP mapping strategy so far A combination of EGM characteristics by Ensite X @AbbottGlobal @AbbottNews and anatomy by @inheartmedical This is just a trailer Just follow our live case in #EHRA2025 @escardio @EHRAPresident @SergeBoveda

Case after case - Wavefront Direction is Key: Pacing perpendicular to WADLs is best for identifying fixed lines of block that perfectly match the VT isthmus lateral boundaries. @BIDMC_VT with star fellow Gabriel Odozynski, maps with @sarah_chomos #ablateVT

Incredible recent #ablateVT case, refractory to multiple outside epi-endo ablations and SBRT. Respect to @DrKatrapati for taking the lead as our new attending. Flawless, precise, elegant. Proud🙏 Spoiler alert: ILAM showed the isthmus between 2 fixed LOB on the epi. Diastolic buffet EGMs shown to feast on. 1s term.

The notorious papillary muscle PVC. Originating from lateral aspect of the pap, these bigeminal PVCs were eliminated during the first RF session with the help of the tried and true PDX method. Link to publication: pmc.ncbi.nlm.nih.gov/articles/PMC81…

An unstable VT. Mappable with #StaMP. Guided by S3 Protocol. @JeffHsingMD @EP_EmilyS - StaMP @DrRoderickTung - S3 Protocol @ivroca - PDX Technique @B_Naz_MD - #EnSite @AbbottCardio