Steven Marx

👉🏻Just published @NatureCVR! Our paper on ‘Three-dimensional visualization of arrhythmogenic substrate in mouse hearts using panoramic optical mapping and micro-computed tomography’ rdcu.be/femUt #Epeeps, FREE Open source algorithms for 3D reconstruction using deep learning #cardiotwitter #cardio

Honored to be elected to @the_asci so I may join my esteemed colleagues @ColumbiaMed who are already ASCI members. @ColumbiaCVRI @LizzyOelsner

Thanks to @HeartBobH for meeting with our @ColumbiaCardio fellows during your visit for Medicine Grand Rounds!

It’s a match! We’re so proud to welcome the newest members of the Columbia cardiology family

We're thrilled to announce our 2nd Annual #ATTR Early-Career #Research Forum #FinalFour! Drs. Boursiquot, @ekoikonomou, @ChetritMichael, and Asif will present their work at our Live Virtual Forum next week - and compete for two $100,000 #Wiesman Awards! #CardioTwitter

An outstanding session of the 2025 American Heart Association Scientific Sessions on "The questions to be addressed in Heart Failure research in the next 10 years". Leaders of various fields discuss where research is going. #AHA #AHA25 #AHA2025

A new paradigm for ion channel regulation! Geoffrey S. Pitt @geoffrey_pitt & team @WeillCornell @WCM_CVTI reveal FGF13 regulates cardiac sodium channels (no binding required) by affecting membrane cholesterol: jci.org/articles/view/… The figure shows cholesterol depletion reduces Nav1.5 fluorescence signal at intercalated discs in myocytes.

The NaV1.5 auxiliary subunit FGF13 modulates channels by regulating membrane cholesterol independent of channel binding

#InDepth review explores the role of calcium in the heart, therapeutic targets for heart failure and arrhythmias, current and investigational therapies, challenges, and future directions for treatment. ahajournals.org/doi/full/10.11…

Join us at HFRI Research Symposium! We’re already at 40 abstracts and counting!! Registration below!

Say hello to the newest cardiology fellows at @ColumbiaMed, we’re so excited to have you here with us!

Congrats @AniNalbandian1 for fellow-to-faculty transition as a critical care cardiologist at Columbia, after an inaugural 1-yr advanced critical care fellowship. Welcome to this year's fellow, Ari Miller! Interested future cardiology fellows, see: vagelos.columbia.edu/departments-ce…

We could not be more thrilled to welcome this phenomenal group of first year fellows to our Columbia Cardiology family! 💙

Honored to have Dr Melvin Scheinman @UCSF come visit @ColumbiaMed @ColumbiaMedRes to give Columbia EP a talk on the past and future of ablation as well as going through some complex SVT egms. Thank you sponsor @BSCCardiology! @abivianoMD @ecoromil @jesshenness @deepaksalujaMD

Congratulations to our amazing graduating fellows who are wrapping up general cardiology fellowship this week! 🎉🎊👏 We could not be more proud of this crew 💖🎖️ @SMarxLab

Huge congratulations to our stellar fellow @AlbertoPinsino on his American Society of Transplantation grant, awarded for his work on kidney function assessment in heart transplantation candidates and recipients! #AST2024 @SMarxLab #PaoloColombo #MelanaYuzefpolskaya @NirUrielMD

Today ⁦@lab_ferrari⁩ and ⁦@ColumbiaSurgery⁩ celebrate PGYLab general surgery resident Dov Levine for graduating Columbia’s PhD program! Well done Doctor/Doctor ! 🥳🍾🥂now back to clinical work. Thanks ⁦@DavidKalfaMD⁩ and ⁦@JuliePhillippi⁩

Congratulations to our 🌟 graduating fellows @EDrigginMD and #MichaelBohnen on their fantastic grand rounds presentations this morning, highlighting their T32 research projects. We are so proud of them!

Ever wonder why d-TGA or DORV occurs? It’s all about under-rotation of the outflow tract (OFT). As shown in our recent paper in Circulation, the aortic valve (red arrowhead) has to rotate to 6o’clock in the OFT where it meets the LVOT. If the OFT doesn’t rotate, the pulmonic valve (blue arrowhead) remains at 6 o’clock, leading to incorrect hook up with the LVOT (dTGA). Everything in between leads to DORV. ahajournals.org/doi/10.1161/CI… #cardiotwitter

@CircAHA Thrilled that our latest Rad study published in Circulation!

#ResearchLetter: Augmentation of cardiac contractility by phosphodiesterase inhibition requires phosphorylation of the Ca2+ channel inhibitor Rad and subsequent increased Ca2+ entry. ahajournals.org/doi/10.1161/CI…