Usha Tedrow

VT after prior right ventricular ablation may present with a narrow-QRS complex and mimic SVT. High-density mapping and pacing maneuvers can reveal an iatrogenic conduction system–related reentrant circuit and guide effective ablation. jacc.org/doi/10.1016/j.… #JACCCaseReports

🔥Sphere 9 lattice @MDT_EPAblation for scar VT ablation @LiverpoolEP has proved efficient and effective 🔥We report on 3 pts with inadvertent CIED lead threshold rise despite ablation on the opposing myocardial surface 🔥#TRANSMURAL Open access @JICE_EP link.springer.com/article/10.100…

It’s that bittersweet time of year! Seeing how far you’ve come but also time to say goodbye to great friends along the way. Congratulations to our graduating fellows!!! @Brigham_EP @True_EP @BrighamFellows #EPeeps @CMAlbertEP

Grateful to @NatureCVR for featuring our @NIH research on the cover (designed by @pav_990) ! A special thanks to Bas Boukens and Daniël A. Pijnappels for their insightful and kind editorial. Check out the article here: nature.com/articles/s4416…. @ColumbiaCVRI #Epeeps @ColumbiaPS #cardiotwitter

Vector Field Heterogeneity as a Novel Omnipolar Mapping Metric for Functional Substrate Characterisation in Scar-related Ventricular Tachycardias #OpenAccess heartrhythmjournal.com/article/S1547-…

A striking sectional view of the cardiac apex from the superior direction, published in #JACC in collaboration with the Amara Yad Project jacc.org/doi/10.1016/j.… #AmaraYadProject #anatomy @shivkumarmd

Daily home-based stellate ganglion phototherapy reduced ATP/ICD shock burden from 3.9 to 0.0 events/month (P<0.01) in 28 patients with refractory VT — no serious adverse events. A novel outpatient neuromodulation strategy ahajrnls.org/3PiETvA

Congratulations @radhikawal @BrighamFellows

☢️STAR may silence VT, but long-term safety is still being defined. We report the first delayed ventricular septal defect occurring 2 years after STAR for VT, with dosimetric concordance at the VSD site ⚡️Long-term follow-up data are needed @JACCJournals sciencedirect.com/science/articl…

Reminds me of our discrete sarcoid aneurysm after SBRT. Definitely sobering. sciencedirect.com/science/articl…

Early Feasibility Study of Catheter-Free Cardiac Radioablation with Proton Beams for Refractory Ventricular Tachycardia @konsiont @mayocliniccv heartrhythmjournal.com/article/S1547-…

"She has been instrumental to my training, a sounding board for all questions related to work and life challenges, and is a true role model to all." — Heather Wheat, MD, honoring @KTamirisaMD through the HRS Honor Your Mentor program. Who was your mentor? Make a tribute gift today: bit.ly/49x3HGU

Premature ventricular complexes with a QRS morphology almost identical to the sinus rhythm was caused by a His-LBB twig that could be successfully ablated in or underneath the right coronary cusp without injury to the conduction system. jacc.org/doi/10.1016/j.… #JACCCEP

What a fitting honor! A career achievement award for one of the most brilliant and dedicated cardiologists of our time. Truly a well-deserved recognition! @MassGenBrigham

#EHRAtopicweek on electrical storm⚡ What to do when amiodarone and propranolol fail and catheter ablation is not feasible? Stellate ganglion block may be helpful. Read more #Europace doi.org/10.1093/europa… @EuropaceEIC

#2 *⃣CIED reset and damage with Sphere-9 monopolar lattice-tip PFA (Nair et al.) @Drdevignair @VivekReddyMD ➡️ Case #1 ✴️SVC PFA in a pt with CRT-D resulted in abrupt termination of energy delivery, temperature rise at the catheter, and irreversible loss of BiV pacing. ✴️CRT-D generator was non-interrogable & required replacement despite preserved lead integrity, strongly suggesting direct device-level injury; ➡️Case #2 - PFA PVI/CTI resulted in complete software reset of an Aveir AR leadless pacemaker, which subsequently recovered. 🧑‍🎓Monopolar energy delivery—where current travels between the catheter and surface electrodes—may facilitate energy coupling into adjacent conductive structures, resulting in either transient software effects or irreversible hardware disruption. heartrhythmjournal.com/article/S1547-…

🧵1/ Trigger vs Substrate in Purkinje VF — which strategy wins? #HRS2026 data comparing trigger vs substrate-based Purkinje de-networking provides first direct answer. Purkinje-mediated VF arises from: 🎯Discrete PVC/fascicular triggers 🌐Diffuse abnormal Purkinje substrate 👉 Key question: target the trigger… or the network?

More than 1 in 10 cardiovascular trials terminate early, most often due to poor recruitment, which is frequently under-reported. Improved feasibility assessment and transparent reporting are needed. jacc.org/doi/10.1016/j.… #JACCAdvances @MayraGuerreroMD

I am honored to be nominated and highlight the role of medical societies in bringing clinical champions to the innovation ecosystem. Let’s work together to drive patient-centered solutions. ✅ Check out all the nominees and cast your vote! lnkd.in/eighnsiW @HRSonline

Thanks @MGBResearchNews for highlighting our work, led by 🌟 #EPeeps fellow @AjufoEzim - get your exercise whatever time of day you want…as long as you get enough!