#EPeeps Synchronized atrial extrastimuli with Cheyenne Beach So much more fun than entraining! (And I think #HDGrid appreciates having a whole pin block to itself.)

Point density exclusion (PDX) technique allowed us to visualize this large eustachian ridge without ICE, achieving CTI block despite difficult anatomy. #PMA

Alternative form of entrainment with a sensed extrastimulus beat from a site of late activation. The paced wavefront travels orthodromically, captures atrial EGMs upstream, and resets the tach. The RA lateral wall is within the tach circuit. #PMA #REM pubmed.ncbi.nlm.nih.gov/33515142/

An untouched atrium, presenting with concordantly positive p-waves. A Reset ExtraStimulus Map helped limit ablation beyond PVI, despite multiple areas of deceleration and potential participating circuits. #PMA #Entrainment Ashit Patel Jordan Hemmen Abbott Cardiovascular

VT critical isthmus (left) correlated with deceleration zones localized with S3 protocol (right) Ivo Roca, FEHRA, FESC x.com/jaccjournals/s… #AblateVT Ashit Patel Brock Gambill Abbott Cardiovascular

Isabel Mauck Emily Frank Brock Gambill Madison West-Cary Here’s one high res from Prucka for those unfamiliar

The right lateral tricuspid annulus, a notoriously difficult ablation, despite alluring target. sciencedirect.com/science/articl… Tricuspid annular plane systolic excursion (TAPSE), one factor for stability. sciencedirect.com/topics/nursing… #PMA Edward Cheng, MD, PhD Emily Shaw Abbott Cardiovascular

Increased ectopy during ablation at this AT’s site of earliest activation, demonstrating irritation of the tachycardia’s focus Jaylynn Markey Emily Shaw #PMA

Ashit Patel Ivo Roca, FEHRA, FESC Brock Gambill Abbott Cardiovascular Neat to see septal scar correlated with ICE!

S3 protocol, once again proved valuable in identifying ablation targets within this complex ischemic substrate. Impressive decoupling of EGM's, otherwise missed with fixed S1 mapping. #AblateVT European Society of Cardiology Journals Abbott Cardiovascular academic.oup.com/europace/artic…

A patient frequently burdened with these PVC's originating at an anterior lateral attachment network of trabeculae carneae. Elongated strands of muscles lining the LV that attach to the solid portion of the LV wall. Permanently suppressed by #TactiFlex at site of 99%

Hx PVI + PW, presenting with typical AFL. CTI & re-isolation of LPV performed. During left atrial post mapping, induced 230 msec tachycardia. Inadvertently terminating during left atrial mapping, though incomplete, passively activated. Unable to reinduce. Right Atrial, S3

Clinical PVC mapped to moderator band via continuous score mapping with a correlation of 96%. The PDX technique was employed to project points to endocavitary structures, enabling precise identification and visualization of the ablation target. #PMA pmc.ncbi.nlm.nih.gov/articles/PMC81…

An unstable VT. Mappable with #StaMP. Guided by S3 Protocol. Jeff Hsing Emily Shaw - StaMP Roderick Tung - S3 Protocol Ivo Roca, FEHRA, FESC - PDX Technique Babak Nazer - #EnSite Abbott Cardiovascular

EnSite VT map hypothesis confirmed. Entrainment with concealed fusion, PPI = TCL. Downstream Pacing with long Upstream Capture observed, S-Vu >75% TCL Chirag Barbhaiya Gregory Michaud Abbott Cardiovascular

Premature His Bundle Complexes distinguished AVRT and AVNRT with 100% Specificity and Sensitivity irrespective of location. A simple & intuitive maneuver. PHC delivered 42 msec ahead of HIS, perturbed A1-A2 by 15 msec = AVNRT. Benzy Padanilam Ashit Patel Emily Shaw

Prior PVI and PWI. Narrow channel of slow conduction on the roof identified by #HDGrid. Entrainment yields a return interval of 0 ms; the roof is in this atypical flutter’s circuit. #Entrainment #PMA Brittany Metzler Madison West-Cary D Randy Jones

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…

#ViewFlex with #ViewMate Multi confirming #TactiFlex location and contact during CTI ablation #PMA

In this typical AVNRT, infranodal conduction block in the lower common pathway results in a 2:1 AV rhythm. Wavefront collision localizes the slow pathway by identifying the site of late activation, with stable junctionals observed during ablation. #PMA Cat Capper EP