Our review regarding
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“Functional substrate mapping of atrium in patients with atrial scar: A novel method to predict critical isthmus of atrial tachycardia”
has just published in Pacing and Clinical Electrophysiology
#EPeeps onlinelibrary.wiley.com/doi/full/10.11…

Hikmet Yorgun sharing some beautiful maps from his ventricular #Tachycardia case. Powerful example showcasing how our EnSite #OTNearField technology provides key insights to help streamline map interpretation.

Safety Info: cardiovascular.abbott/us/en/hcp/prod…

#ProudToBeAbbott

“Peak Frequency” annotation based voltage map using Near Field OT helps to identify the sites critical to #VT circuits.
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Endocardial map of non-ischemic VT after MV repair demonstrating low voltage-high frequency sites colocalized with critical isthmus of VT. #EPeeps #ablateVT

Could atrial functional substrate mapping during SR provide relevant data to predict critical site of reentry in pts with underlying scar?
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Right atrial ILAM in a pt with surgically repaired ToF. Deceleration zone colocalized with CI of reentry with fractionated EGMs #EPeeps

Automatic annotation of “Peak Frequency” signals in ischemic #VT during sinus rhythm;
👉High frequency EGMs in low voltage regions are relevant !!!
Emphasis of PF in low-voltage regions accurately predicted critical VT isthmus demonstrated by activation map. #EPeeps .

Could “Peak Frequency” map of ventricular substrate during SR characterize low voltage regions critical to #VT circuits?
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Epicardial map of ARVC demonstrating low voltage-high frequency site colocalized with DZ of ILAM and critical isthmus of VT. #EPeeps , #ablateVT

Does baseline atrial activation map during sinus / paced rhythm give insights about the functionality of substrate?
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Atrial late activation map in a patient with septal low voltage. Slow conduction with abnormal atrial EGMs predicts critical site of septal reentry. #EPeeps

Ischemic #VT case in a patient with LV assist device using Near Field OT. Emphasis of “peak frequency signals” during activation clearly demonstrated the VT isthmus, which was colocalized to low voltage-high PF area in the voltage map. #EPeeps

Functional evaluation of atrial substrate gives relevant data in AF recurrence with isolated PVs. Atrial late activation mapping demonstrated fractionated EGM in the roof - corresponding to low voltage zone-. This site predicted critical isthmus of roof dependent AT. #EPeeps

In a patient with confluent inferior PVs, we are lucky to demonstrate AF inside single circular lesion set encircling all PVs with #HDGrid ; whereas sinus rhythm in the rest of the atrium. After spontaneous termination, automaticity was observed in the posterior wall. #EPeeps

Who are the members of the #EHRAcertification committee? See their picture here during our in person meeting to prepare the 2023 exam. A group of passionate EP and CP specialists, including allied professionals and the mega-supportive #EHRA_ESC staff. Thank you all for your work!

Is PVI-only approach enough during re-do procedure in a paroxysmal AF with reconnected veins ? “Atrial late activation” map demonstrating fragmented EGM & slow conduction in the posterior wall (low-voltage zone) predicting roof-dependent macro-reentry. #EPeeps

Now online… Atrial late activation mapping demonstrating functionality of substrate to predict critical isthmus of atrial tachycardia. #EPeeps , Journal of Cardiovascular Electrophysiology doi.org/10.1111/jce.15…

Our paper regarding functional substrate mapping characteristics - atrial late activation mapping during sinus / paced rhythm - to predict critical isthmus of atrial tachycardia is online now!!! #EPeeps

Functional Substrate Mapping Under Sinus Rhythm Predicts Critical Isthmus of Atrial Tachycardia

Hikmet Yorgun and colleagues describe 3 cases of FSM characteristics and their relation to critical isthmus of reentrant atrial tachycardias. okt.to/swf9VJ

Ischemic #VT ablation in a patient with inferobasal ventricular scar. Late potentials evident at both RV & LV. Activation map revealed exit site of reentry in basal RV with presumed septal isthmus. #ablateVT from RV terminated tachycardia. #EPeeps

Two separate ATs - roof dependent & septal reentry in a patient with previous partial anterior mitral line. Ongoing septal reentry after completion of anterior mitral line. #EPeeps

Awesome demonstration of #HDGrid and late activation maps highlighting the macro-reentrant circuit and termination site on this #Tachycardia case. Thanks for sharing, Hikmet Yorgun.

Safety Info: cardiovascular.abbott/hdgridisw

Atrial “late activation” map demonstrating conduction slowing (dashed lines) on anterior wall in a patient with extensive scar. Critical site of localized reentry is compatible with deceleration zone of atrial ILAM. #EPeeps

Extensive epicardial substrate in a patient with advanced ARVC. Simultaneous endo & epicardial activation map demonstrating reentry circuit. First line endo ablation terminated #VT with subsequent loss of LPs on epicardial site. #AblateVT , #EPeeps