Margo Shemaria

Truly remarkable remote case support at HRS by Dr. Bernard, @Skhatib55, and our Abbott Remote Specialist team. Really powerful demonstration of how #EnSiteConnect & @medinbox can transform the reach of EP. #AbbottProud #HRS2023

#EnsiteX just keeps getting better. New #OTNearField annotation perfectly displaying LAA circuit despite <.04mv voltage. Emphasis feature highlighted the diastolic activation and pointed @docAnneSquared and @ChauVoMD to a one burn term 🔥.@AbbottCardio #EPeeps @MUSC_EP

New advancement in VT mapping: OT Near Field software uses peak frequency to annotate NF component of EGM. In this case, using OT NF in ILAM cleanly defines line of block, revealing potential VT channel along the mitral valve. #OTNearField #VTin3D @AbbottCardio

Redo AF with extremely fractionated & low amplitude posterior wall signals (gained up in images). OT Activation Vectors indicated a slow breakthrough below the left inferior vein, ablated with TCSE @bharathreddymd @AbbottCardio #EPeeps #OnlywithOT

Ischemic VT. 6 different VTs induced. Scar homogenization was necessary as adjunct ILAM guided ablation to stop easy VT inductions. @bharathreddymd @MShemaria_EP @AbbottCardio

Can OT activation vectors help pinpoint a focal breakout better than LAT alone? In this RA tach, activation vectors showed us a more specific early point with a QS unipole and first burn termination at this site with TactiCath. Great case with @bharathreddymd! #onlywithOT #EPeeps

Incredible that technology allows us to make such accurate models of this anatomy. McAlpine’s contributions to our field continue to influence and inspire.

Propagation Map:

One burn termination for this dual loop atypical AFL with @thehungryEP and @KristinP_EP. Where would you ablate? #epeeps

@MonicaKorzon Voltage scale was 0.1 to 1 mV!

@MShemaria_EP @EPeeps_Bot @bharathreddymd What were your voltage settings? The DZ region is intriguingly healthy!

Epicardial ILAM for a non-ischemic patient with prior endocardial ablation. Three VT morphologies were inducible at the beginning of the case. After targeting isochronal crowding and late potentials seen on HD Grid, patient is completely non-inducible! @bharathreddymd #EPeeps

So excited to see this publication hot off the press! “HD grid catheter is safe to use in children & CHD patients and not associated with higher complication rates” 🙌🏻 #EPeds #EPeeps @SusanEtheridg12 #accessDenialLayout" target="_blank" rel="nofollow noopener">onlinelibrary.wiley.com/doi/pdf/10.111…

WPW pattern on EKG and wide complex tachycardia termination with adenosine in ER. Orthodromic or antidromic tachycardia? 👀 #HDGrid and Omnipolar Technology (OT) rapidly discovered the truth. #TrueEGMs @RajeevJoshi400 @AbbottCardio

Starting Friday off with some atrial tachycardia fun! OT vectors show a line of block just below the breakout of this fast AT. Despite close proximity to the phrenic nerve, ablating more anteriorly safely eliminated the tach. @bharathreddymd #EPeeps #EnsiteX

Pathway damaged but not eliminated after initial ablation - pre-excitation weak on ECG but present with CS pacing. Local ventricular signal shows successful subsequent ablation despite subtle ECG changes.

How much emphasis is put on the A:V ratio when ablating AVNRT? SP site w/ "ideal A:V" on A2B2. Wavefront-corrected OT EGM would typically be seen as too large of an A. Has an error in directional sensitivity been assumed as physiology? #OmnipolarTechnology challenges convention.

HD Grid and OT Activation Vectors helped localize the breakout of this left inferobasal PVC. No more PVCs after ablation with TactiCath SE! @bharathreddymd @KristinP_EP #EPeeps #onlywithOT

Nice Non-Ischemic VT/PVC by @bharathreddymd . Started epicardial, changed the exit/morphology, and chased it to the LV for elimination. First class mapping by @MShemaria_EP

Accessory pathway extravaganza! 4 discreet left sided pathways, and there was even a bonus right septal! Whats the most AP’s you’ve seen in a single patient? @bharathreddymd @MShemaria_EP

Nonsustained AT with sporadic PACs? No problem for the #HDGrid. Bracketed with confidence in just a few beats, and highlighted but that insane fractionation at the earliest site. @bharathreddymd