Aaron Matthews

Map maker

[Aaron Matthews @AMatthews0]

Proud to have assisted some great EPs on this work and thankful for their pursuit of new methods to help patients with VT.

High frequency in scar to identify decel Zones using #EnsiteX

Check out the video in the comments.
@JPayne_EP @JRWinterfield

https://t.co/9zJIwmiiop

[HeartRhythm @hrs_journal]

Comparison of Far-Field and Peak Frequency Electrogram Characteristics at the Earliest Activation Sites during Idiopathic Ventricular Arrhythmias: A novel index to predict ablation success #OpenAccess

@TakuroNishimu @ISCT_cvm

https://t.co/m4OSXVuUz5

[JICE @JICE_EP]

🚨Newest #FreeRead Article in
@JICE_EP

Functional Mapping Identifies Early Arrhythmogenic Substrate in Recurrent Atrial Fibrillation

🧐📖https://t.co/g0ALeRNy88

by Chiara Valeriano, @Davidsotoiglesi, @diegopenela1, @DrFalasconi, @dariorici, @FedericoLandra1, @JAldereteM, @daniviverosf, Aldo Bellido, Fatima Zaraket, Paula Franco, @CarloGig, Lucio Teresi, Bruno Tonello, Lautaro Sánchez-Mollá, @ACLatini, Roberta Mea, Carmine De Lucia, Emanuele Curti, Andrea Saglietto, Pietro Francia, Etel Silva Garcia, Julio Martí-Almor, Juan Fernández-Armenta & Antonio Berruezo
74 Accesses

[JK Han MD @netta_doc]

Great reminder from @Phiso_de - many #AFib #ablation approaches likely target comparable areas in the atrium

Need to remain open minded, understanding there is overlap between voltage mapping, dispersion, non-PV triggers & VOM

#WAFib2026 #EPeeps

[HeartRhythm @hrs_journal]

Arrhythmia Substrates Accessible from the Aortic Root and Immediate Sub-aortic Areas: Mapping and Ablation #OpenAccess

https://t.co/gWrqdWIxa5

[Aaron Matthews @AMatthews0]

@LaredoMikael Thanks for sharing this technique! What power and duration was given through the wire?

[Mikael Laredo @LaredoMikael]

Ablation of a left ventricular summit premature ventricular contraction using radiofrequency through a guidewire

[Aaron Matthews @AMatthews0]

There’s no replacement for quality mapping. Well done 👏

[Bishnu Dhakal MD FHRS @dhakalbish]

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

[Atul Verma @atulverma_md]

Volt released some pretty impressive 12 month data with over 80% success in paroxysmals and excellent persistent AF results. Read the simultaneous publication! https://t.co/rXBZzjlPj1

[Aaron Matthews @AMatthews0]

Septal VT mapped by @ChauVoMD of @MUSChealth. Entrained and terminated. @AbbottCardio @inheartmedical

[Aaron Matthews @AMatthews0]

@pjsm83 @swatirao24 @MUSChealth @JRWinterfield @dhakalbish @docAnneSquared @SergioPinski @mike_lean @forkknifecab_EP @brysontindal9 Pablo J. Sánchez Millán
- MB created using PDX with confirmation by a combo of ICE, grid deflection and force vector.
-not an excessive amount that would have kept us from accurately finding the source. Keeping the score match criteria to >97% minimized points taken from bumps.

[Aaron Matthews @AMatthews0]

Successful ablation of PVC arising from a complex moderator band apparatus by @swatirao24 of @MUSChealth. Conspicuous Purkinje at target site.

[Dr. Devi G Nair @Drdevignair]

First-in-Nation: Integrating ViewFlex X SE ICE with VOLT PFA
This week started with a meaningful milestone at St. Bernards Healthcare (Jonesboro, AR) — first-in-nation combining Abbott’s ViewFlex X Sensor Enabled ICE with the VOLT PFA platform.
This builds on our prior experience with:
• FIH clinical trial use of ViewFlex X SE
• Post-FDA VOLT PFA cases as part of the VOLT LMR
What stood out was how well imaging + mapping + energy delivery functioned as one ecosystem in a zero fluoroscopy / zero contrast workflow .
Key takeaways
🔹 ICE integrated into EnSite X for real-time anatomic confirmation during PFA
🔹 Safe ICE-in-LA workflow and transseptal planning that reduced unnecessary manipulation in small LA anatomy. Integration helped support transseptal decision-making up front—optimizing trajectory and reducing unnecessary catheter manipulation in small LA anatomy.
🔹 Quick LA shell creation to confirm ridge/posterior wall/carina geometry early
🔹 Small atria lesion strategy: integration helped us decide tighter antral lesions vs intentionally addressing a posterior “critical isthmus” when the posterior corridor was inherently narrow
🔹 During VOLT delivery: very low microbubble visualization on ICE and no clinical hemolysis observed

VOLT workflow highlights: single-catheter mapping/pacing/ablation, impedance-based contact visualization, balloon-in-basket (8 splines), selective electrode delivery; PVI ± PVI+ as clinically indicated (GA used).

Grateful for the St. Bernards EP Lab team and the Abbott clinical support team.
#ViewFlexXSE #VOLTPFA #FirstInNation #ICE #EnSiteX #ZeroFluoro #ZeroContrast #EPWorkflow #Innovation #epeeps
@StBernards | @ARGJonesboro I @AbbottNews I @AbbottCardio

[Raphael Martins @MartinsRaphae15]

⚡️New ELECTRICAL STORM paper out
We propose the 5-stage STORM classification for electrical storm – a simple bedside scale that stratifies 30-day mortality from 5% to 50% and helps structure multidisciplinary care
https://t.co/kzRCIE7V5I

[Dr. Zhong @pzhong2016]

Understanding 12-Lead Electrocardiographic Anatomy https://t.co/ct2rW9GLnQ

[Aaron Matthews @AMatthews0]

@ConstanEmilio @pjsm83 @mike_lean @danealson @_shannonmillard @Hapa_EP @javadm20 @Yogesh_EP @forkknifecab_EP @ALFIEEP1 @hikmetyorgun @da_silvr @AbbottCardio @DrRoderickTung @TimothyMaherMD1 @AkihikoNogami @finnakerstrom Agree with you but, layering Frequency Emphasis on top of LAT can also accomplish this.

[Eduardo Sanhueza @DrEdoSanhueza]

Radiofrequency Ablation and Right Purkinje De-Networking for Moderator Band PVC-Induced VF: Broadening the Therapeutic Landscape

@andresenriqueza @hanson_matthewg @BURAKCMD2 @victorneirav @queensu @QueensUHealth @QueensuDOM @KingstonHSC

https://t.co/SgJSOpFFtW

[Mike Lean @mike_lean]

Some post-case learning with @danealson (Dr. Neal Bhatia) and @_shannonmillard: following an ischemic VT case, together we compared how the clinical VT circuit presented when mapped with the First Deflection algorithm versus EnSite™ OT Near Field.

What we found brings up an interesting question. Is it better to….
- Force the system to visualize the full circuit with First Deflection, or
- Illustrate the potential midmyocardial bridges and touchdown points with OT NF?

While there may not be a "correct" answer, we think there is value in appreciating both pieces of information. And if nothing else, it makes for a fun discussion with talented colleagues like Dr. Bhatia and Shannon.

[Bishnu Dhakal MD FHRS @dhakalbish]

First burn termination of RV pap PVC by our first year fellow @BhattacharyaPri. Great use of new Abbott Viewflex ICE with AI countering as a part of phase 3 research study. @AMatthews0 @MUSC_EP @JRWinterfield @AbbottCardio

[Sachin Vadodaria @sachinjv]

Wow!

Dr. @PrashSanders presented VOLT-AF IDE Study 6-Month Results where #VoltPFA demonstrated:
- 93.1% effective in PAF
- 81.9% effective in PsAF
- Low adverse event rate
- Durable PVI

#AbbottProud