Heart rhythm doc, writer for @Medscape, host of This Week in Cardiology podcast, editor of Sensible Medicine. The more you see, the harder medicine gets.

Joined May 2010
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Twitter thread coming on what @adamcifu @VPrasadMDMPH @AndrewFoy82 and I think is the BEST approach to pt care. This is ... The Case for Being a Medical Conservative. amjmed.com/article/S0002-934… Thanks to the @amjmed for publishing this.
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One of the first writing books (of many) that I read. Great tips below👇🏻
William Zinsser taught writing at Yale, then wrote the book that has fixed more bad writing than every English class combined. Here are 10 cuts from "On Writing Well" that instantly make your writing twice as strong. 1) Delete every word doing no work
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John Mandrola, MD retweeted
The great debate at #las2026 - left atrial appendage closure: expanding evidence or expanding enthusiasm? A winning argument by @drjohnm and a very balanced and considered rebuttal by Tim Betts. More agreement than disagreement! @ShouvikHaldar @MillbrookMed
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It’s hard not to see this as comedy Whilst LAAC, tricuspid valve interventions and coronary CT scans act as bank machines Reducing low value care would likely shred the AHA, ACC, HRS and likely ESC too
Jun 12
Strategies to Reduce Low-Value Cardiovascular Care via @American_Heart ahajournals.org/doi/10.1161/…
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Another example of a reversal RCT coming way too late. Gosh. Cc @Sensible__Med
Replying to @EMrobg
remapcap.org/oseltamivir-cli… With millions of cases of severe flu worldwide annually, this result should have been reached back in the 1990s. Oseltamivir should be withdrawn from hospital formularies. 2/4
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John Mandrola, MD retweeted
remapcap.org/oseltamivir-cli… With millions of cases of severe flu worldwide annually, this result should have been reached back in the 1990s. Oseltamivir should be withdrawn from hospital formularies. 2/4
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John Mandrola, MD retweeted
The stage is set. Faculty dinner ahead of #LAS2026 with experts joining us from across the UK, Europe and North America for a day focused on the future of arrhythmia care. Looking forward to a day of great discussions and science! @drjohnm @ProfDConnelly @JohnSilberbauer @g_andre_ng @DavideFabb amongst many others!
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It just keeps getting better. Bass Pro Shops. LOL
We found another surreal place on our way. I know some people will say I’m too positive about everything I see, but this place was crazy. They had a shooting range in the store.
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Hugely important post below about an important trial
ARISE-FLUIDS has arrived and it's awesome 🥳 For over a decade, the Surviving Sepsis Guidelines recommended that septic patients get at least 30 cc/kg fluid. In the United States, these guidelines were weaponized into performance metrics, pressuring clinicians to prescribe arbitrary volumes to every patient. Evidence-based clinicians have LONG known that this guideline lacked evidentiary support. For example, I've attached a picture of a blog I wrote about this back in 2017. Despite the lack of evidentiary support and some evidence of harm, the Surviving Sepsis Guidelines INSISTED on perpetually recommending 30 cc/kg fluid resuscitation. We finally have a prospective RCT demonstrating that mandating early administration of 30 cc/kg fluid (as compared to early vasopressors) doesn't help and may actually cause harm. It's important to note that all of the hard endpoints in this trial were neutral (e.g., mortality, days free of organ support). I still think that 30 cc/kg fluid is a pretty reasonable volume of fluid for *most* patients. But the study does suggest that giving too much fluid may promote edema - so we should be *thoughtful* about this intervention rather than mandating it for every septic patient. Based on the subgroup analysis, the fluid-conservative strategy may have helped the subgroup of pneumonia patients the most. This is statistically nonsignificant but aligns with my expectation. ARDSy patients often don't respond well to fluid. (In contrast, I really doubt that a liter of fluids in either direction matters for most urosepsis patients.) This is a great example of the over-reach of guidelines and protocoled medicine. People get all upset about practice variation, so sometimes they try to stomp it out using guidelines and protocols. But these guidelines are highly fallible, so what may occur is that you standardize care in a way that harms everyone equally. 🤦‍♂️
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John Mandrola, MD retweeted
It is absolutely wrong to refer to the AMA as America’s physicians. There are hardly any active practicing physicians who belong to the AMA. They say they have 350,00 members because they consider all 300,000 students and residents as members of the AMA. I can tell you from having a worked there that they don’t even tell their own employees how many actual members they have it’s embarrassingly small. I also know because I used to manage the CME portfolio that they provide very few CME credits for their members – another indicator of how small their membership is. When I was there they would issue about 20 to 30,000 CME credits per year which almost all came from JAMA. Less than 10% of their CME came from AMA activities. This is in contrast hundreds of thousands or millions of credits given by other by other organizations that actually do have very large memberships When I first went to work there I was shown a poll that showed 70% of physicians have a unfavorable view of the AMA. 2/3 of their income comes from their ownership of CPT and HHS mandates that CPT be used for billing. Without CPT there would be no AMA. I had an awful experience working there as some of you might know. The physician community should absolutely not let the AMA present themselves as representing American medicine
America’s doctors just voted for war with RFK Jr. dlvr.it/TSzRvc
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John Mandrola, MD retweeted
"LAS was created to be the meeting we would want to attend ourselves" — Dr Shouvik Haldar, Course Director 3 days to go. Registration closes Thursday noon. Friday 12 June · London · Under £100. londonarrhythmiasummit.com/
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John Mandrola, MD retweeted
Jun 10
"I'm healthy. I'm a little overweight. Should I start a GLP-1?" A first, second, and third opinion from @adamcifu & @VPrasadMDMPH & @drjohnm sensible-med.com/p/im-health…
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John Mandrola, MD retweeted
Replying to @pash22 @drjohnm
👏👏👏 Precisely this. I teach my trainees that EBM demands proof in the exact patients we treat. Borrowed optimism from healthier cohorts is not evidence.
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My take away is more pedestrian. Avoid Uber. Go by train. Even if complicated. Just don’t forget to validate your ticket.
🇮🇹 Travel is far more than just arriving at a destination; the journey itself should be an unforgettable experience. If you are looking to elevate your next European holiday into something truly extraordinary, look no further than the Venice Simplon-Orient-Express. Widely celebrated as the world's most luxurious sleeper train, its history is as dramatic as the landscapes it traverses. Originally launched in 1883, the legendary line served as critical transportation for elite European travellers before falling into disrepair after the Second World War with the rapid rise of cars and commercial flights. However, the iconic history and glamour of the train were never truly forgotten. In 1982, the historic carriages were beautifully restored and relaunched to their former glory. Today, this magnificent train gives luxury travellers exclusive entry into a lost era of old-world elegance. With its historic Art Deco carriages snaking across the most breathtaking landscapes in Europe, a journey aboard the VSOE is a spectacular step back into the timeless opulence of luxury rail travel. 🎥 alextravel.s | IG
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Amen
A few Germans like Freddy, went to the United States for the World Cup and have been travelling around the country. They ended up going viral because they were genuinely amazed by America and shared their enthusiasm online. As someone who has been to the U.S. around twenty times and even lived there for a year, I can understand their reaction. In my experience, Americans are generally friendlier, more polite, and warmer than Germans, especially in smaller towns. And once you get away from the main tourist routes, there is an incredible amount of beautiful nature, unique experiences, and fascinating places to discover. If you know where to go, even the food can be outstanding. I think the reason their videos went viral is that, for the past decade or so, most of the news coming to Europe about America has been negative. As a result, many people have developed a distorted image of the country. If you follow German news and media, you mostly see stories about school shootings, racism, police brutality, political conflicts, and similar issues. I honestly cannot remember the last time I saw a genuinely positive portrayal of America in the German media. So when people actually visit the United States, they are often surprised by how different the reality feels from the image they had in their minds. In a way, I think America could use a rebranding. Growing up, I remember hearing stories about the "American Dream," and many of us in Germany dreamed of visiting or living in America. That sense of optimism and opportunity seems to have faded from the public conversation.
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Unlike @x THIS IS NORMAL IN FLY OVER COUNTRY
I love Americans. We were about to walk an hour to the stadium in the rain to save on an Uber, and the receptionist at the hotel we were parked in front of decided to drive us there.🙏
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John Mandrola, MD retweeted
Friends If you are a clinician involved in ambulatory heart failure care, including cardiologists, nephrologists, internists, and family physicians, please consider participating in this University of British Columbia research survey on loop diuretic practice and clinical decision making. The anonymous survey takes 5 to 8 minutes. Participants may choose to enter a draw for one of twenty $50 Amazon gift cards. Survey link:
ubc.ca1.qualtrics.com/jfe/fo… @AmitaiSegev1

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John Mandrola, MD retweeted
@drjohnm open.substack.com/pub/sensib… TRACK trial lesson: sicker patients ≠ more benefit from treatment. Statins failed in dialysis. ICD failed in CKD. Now rivaroxaban fails in advanced CKD. Every therapy has a sweet spot. Outside it, harm beats benefit. Don't assume. Demand the trial in YOUR population. 📌
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Kentucky next please. Southeast USA is pretty cool. Watch out for bears.
Somewhere in Tennessee
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Funny. Not only do I remember these things, I remember thinking they were pretty hazardous.
Kids have safety scissors now. But back in the day, we were totally allowed to use the classroom guillotine at 10 years old.
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