Toby Markowitz

Medtronic retired. ham. cycle. XC ski. invent. fundraise for diabetes. founded WAMXC( in 2000. @[email protected]

[mariana Z @mariana057]

I'm in search for someone to assist with milking cows on my dairy farm.

Must work well with udders.

[Venkatakrishna Tholakanahalli @VTholakanahalli]

Transcatheter epicardial pacing of the human Bachmann’s bundle via the... https://t.co/sjpCUyB6GQ

[Milan Koštek @KostekMilan]

A lot of us know it but repetition is good.
Also another reason to address factors leading to inappropriate shocks even with more lenient approach used these days
https://t.co/DZNHnRNFlB

[EHJ Editor-in-Chief @ehj_ed]

Endurance exercise is heart-healthy usually. New study shows it can remodel pulmonary vein myocytes and create a pro-arrhythmic atrial substrate. The atrial fibrillation–athlete link, explained. Read more in #EHJ.
https://t.co/sMZoSgBnmd
#AF #athlete #cardiotwitter @ESC_Journals @escardio

[Toby Markowitz @tobymarkowitz]

@TonyKorologos awesome.

[Ash Paul @pash22]

When Sponsors Stop Trials Everyone Loses:
The ANTHEM HFrEF trial of vagal nerve stimulation was proceeding well when the sponsor stopped the trial. The story...and some thoughts about the research enterprise via @drjohnm

[Anish Koka, MD @anish_koka]

Cardiac surgeon @georgetolisjr on @DRsLoungePod

[Heart Rhythm Society @HRSonline]

The keynote everyone's still talking about. 🎤

Dr. Will Flanary, a.k.a. @DGlaucomflecken — ophthalmologist, comedian, and SCA survivor — brought humor, honesty, and a powerful reminder of what it means to be both a doctor and a patient to #HRS2026.

▶️ Watch the full keynote on https://t.co/0BghdRTKLW.

[Toby Markowitz @tobymarkowitz]

@GopherVBall congratulations, graduates. you make us proud.

[Nick Mark MD @nickmmark]

One of my favorite aviation phrases:
“Superior pilots use their superior judgement to avoid having to demonstrate their superior skills.”

It’s true for any proceduralist btw.

[Turbine Traveller @Turbinetraveler]

There is still good left in humanity.

Captain Jon Jackson was supposed to take his final retirement flight with Spirit Airlines today. But after Spirit's shutdown, he instead found himself as a passenger on a Southwest Airlines flight into Baltimore.

What happened next was truly special. Capt. Jackson was honored with a traditional water cannon salute and a surprise welcome celebration at the gate.

This is a powerful reminder that the aviation community is built on respect, compassion, and solidarity—especially when it matters most. Above all, this moment was about honoring a fellow aviator.

Congratulations, Capt. Jackson, and thank you for your years of service in the skies.
Well done Southwest Airlines 💙

[ALBERTO ALFIE @ALFIEEP1]

After 20 yrs in EP, I’ve never seen hype like PFA. Point-by-point RF—when done properly—delivers excellent results, with no clear superiority of PFA. Are we driven by better outcomes, or by speed, simplicity, and industry momentum? Time to refocus on science over marketing.

[John Mandrola, MD @drjohnm]

One of the most important trials of #ehra2026

Next do it for ICE in AF ablation

[Josh Farkas MD 💊 @PulmCrit]

careful: if this technology falls into the hands of internal medicine docs, rounds may extend to 8 hours long

[JAMA @JAMA_current]

In adults ≥60 years, 26% discontinued levothyroxine while maintaining thyroid function, with 64% success for doses ≤50 μg/d, and no clinically important changes in thyroid-related symptoms. 🧵

https://t.co/3trWtP4WDu

[Stansaid Airport @StansaidAirport]

Airlines are going to love our new billboard.

[Chetan Shenoy @cshenoy3]

In science, successful replication is the ultimate quality check!

This is a highlight for our research group—David Birnie's group (one of the biggest names in cardiac sarcoidosis) just independently replicated our CMR phenotyping work!

https://t.co/usKJhRgufE
@EHJIMPEiC #EHJIMP

[Amitabh Yaduvanshi MD, DM, FACC, FSCAI @IntervnCardio]

1/8 🚨 BREAKING STUDY:
Is Right Ventricular Pacing (RVP) obsolete for Atrioventricular Block (AVB)?
The groundbreaking MELOS RELOADED study just dropped, comparing LBBAP vs RVP in 3,382 patients.
The results will change how we pace! 🫀👇

[Dena Zeraatkar @DenaZera]

"A significant fraction of the reporters covering the FDA and pharmaceutical industry have developed, over years of access journalism, a set of relationships and sympathies that align them more closely with the companies they cover than with the regulatory mission"

[George Tolis @georgetolisjr]

The current surgical education system forces all candidates to claim that their goal is to be an academic surgeon engaged in research and teaching, when in fact they may just be interested in a quiet rural general surgical practice that greatly benefits a local community.