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.

Louisville, KY
Joined May 2010
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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We have known about #WPW and accessory pathways as a common cause of SVT for >100 years and have effective procedures to address them, but we still have NO IDEA why some patients are born with these extra slivers of muscle that electrically connect atria to ventricles. Medicinal use of lithium in pregnant women leads to heightened risk of a particular form of congenital heart disease associated with these pathways. Might variable levels of lithium in drinking water affect the chance a growing fetus will be born with such a pathway? @jclinicalinvest @UCSF @UCSFHospitals @stopafib @DrDave01 @KnowYourPulse JCI - Elevated lithium levels in drinking water are associated with higher prevalence of Wolff-Parkinson-White diagnoses jci.org/articles/view/205020
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John Mandrola, MD retweeted
We have finished sharing our nine free "How to Not Get Fooled by the Medical Literature." Today, on @Sensible__Med, we post the first of nine lecture for paid subscribers. Join us. It is a fun set of lectures. You will definitely learn a ton! sensible-med.com/p/episode-1…
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Amen: “The EP community at-large, and other relevant stakeholders, have to be the arbiters of whether the right questions are being asked and whether the right studies are being done. This is why it is critical to ensure that we refocus training programs with this goal in mind.”
Cardiac Electrophysiology at a Crossroads: Building on Dr. Josephson's 20 years of observations. Is EP science, procedure or both? What is the future of EP science? authors.elsevier.com/a/1nzSl… #EPeeps #CardioX @ACCinTouch @HRSonline
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See...real medical science exists. This is important work trying to sort out the findings of Gunawardene et al showing late coronary events after PFA PFA has been great, but it is still VERY EARLY and we need to keep our guard up for adverse effects both short and long-term There's much to learn about PFA and I am glad there are academic folks looking into these matters
‼️ Now online in the #EHJ @ESC_Journals: The Vasc-PFA study 📖 academic.oup.com/eurheartj/a… @ehj_ed Our study provides important insights into the acute coronary vascular effects of monopolar biphasic #PulsedFieldAblation 🔬 Key findings: 👉 Acute, localized endothelial dysfunction occurs following coronary exposure to PFA, while vascular smooth muscle function remains preserved. 👉 The effects are site-dependent: endothelial dysfunction was least pronounced after cavotricuspid isthmus (CTI) ablation and most evident following great cardiac vein (GCV) and epicardial PFA. 👉 Selective endothelial injury with preserved smooth muscle cell function may explain the observed vasomotor dysfunction and why nitroglycerin can rapidly reverse clinically apparent coronary spasm despite persistent endothelial impairment. 📌 Why does this matter? Anatomical factors may influence electric field delivery and the degree of coronary exposure. The findings also raise important questions about the potential relationship between acute endothelial injury and delayed coronary complications, including myocardial ischaemia, ventricular arrhythmias, and longer-term vascular remodelling. #PulsedFieldAblation #Electrophysiology #CardiacElectrophysiology #Cardiology #CoronaryArteries #Arrhythmia #CardiacResearch @drjohnm @DrJasonAndrade @TinaBaykaner @DrRoderickTung @ftrae @peterkistler3 @ivroca @shivkumarmd @LuigiDiBiaseMD @nmarrouche @S_NarayanMD @Dr_Santangeli @atulverma_md @SCYap77 @VivekReddyMD @MoritzNies @jskoruth @arnelasaljic @DalgasSarah @PrashSanders @harry_crijns @Elliott_AD @kvernooy @Ed_Gerst @True_EP @Drdevignair @Mel_Gunawardene @jongichun @RolandTilz @Phiso_de lnkd.in/p/eNvPWUK9
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John Mandrola, MD retweeted
Is the gap between healthcare charlatan and healthcare expert narrowing? Opinions by @VPrasadMDMPH & @adamcifu & @drjohnm sensible-med.com/p/is-the-ga…
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John Mandrola, MD retweeted
I really like this one. Three very different takes. Is the gap between charlatan and expert narrowing? open.substack.com/pub/sensib…
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Anticoagulation use may indeed be suboptimal but such EHR studies are ill equipped to judge. Diagnoses get perpetuated and are inaccurate. EHR sits on the opposite pole as Apple software I’m diligent about AC prescribing and get oodles of notifications that a pt is not on AC.
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John Mandrola, MD retweeted
Summary and discussion of CASTLE-AF and CASTLE-HTx cardiologytrials.substack.co…
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Heat training b/c PF has no effective fans
Vinny Mauri is one of the coolest stories in sports right now. He is already one of the fastest American marathon runners ever, yet he's run only two marathons, doesn't have a coach, and usually trains indoors on a treadmill at Planet Fitness.
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John Mandrola, MD retweeted
And now for the rest of the story... 👇 heartrhythmjournal.com/artic… Trial design was appropriate to disentangle direct effect of ablation from ablation-care pathway including sedation, venous access, cardioversion, rescue AA therapy & structured follow-up.
Wow. BREAKING. Critical appraisal springs to life from Top People when they do not like the results Read this scathing critique of PVI-SHAM-AF trial heartrhythmjournal.com/artic… From many of the makers of endpoints like "non-procedural bleeding" and noninferiority without relative risk margins My friends, put down those stones, you are going to break something in that glass house Grin. Double Grin. Stay tuned to TWIC.
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John Mandrola, MD retweeted
Replying to @drjohnm
@drjohnm was kind enough to have me on Medscape to discuss the CMR-GUIDE trial @josephselvacmr @JAMA_current. medscape.com/viewarticle/cmr… I fear that the particular design of the primary endpoint from its conception made it highly unlikely to ever produce a significant result.
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5 full stars out of 5!
Meet Miguel Rojas. He studied all 100 citizenship questions. He wanted no special treatment because he’s a professional baseball player. And when he passed, he said he was prouder of that perfect score than his World Series home run. What stood out to me most was his gratitude. He talked about America opening its doors to him 21 years ago and said he’s never taken that opportunity for granted. Preparation. Respect for the process. Gratitude for the country that gave you an opportunity. Wanting to contribute and be judged by your character, not your status.
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This is EXACTLY our goal on @Sensible__Med: sensible arguments by sensible people for sensible people
I know both and I know both care about evidence. it is also refreshing to even see a conversation about evidence without political theater of left vs right. every sensible person should appreciate how low the risks are. current covid hospitalizations are probably an overestimate since covid->pneumonia/hypoxia->hospitalization is a zebra now. so covid hospitalizations are a mix of incidental or mild and unrelated versus the now most common causal path of covid>URI>volume depletion/fatigue> fall or syncope. so if you can mitigate that, that could be helpful I also don't believe that VA group or their prior work. Have they been right about anything? wrong on long covid, wrong on repeat infections, wrong on glps helping every outcome (cognitive, psychiatric). so I don't have faith in this one as our main evidence we just ultimately have no idea and people have to make decisions nonetheless. i think the risks are going to be tiny/rare on either side. I personally wouldn't recommend it in 1st, 2nd, or third trimester. good read nonetheless
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Wow. BREAKING. Critical appraisal springs to life from Top People when they do not like the results Read this scathing critique of PVI-SHAM-AF trial heartrhythmjournal.com/artic… From many of the makers of endpoints like "non-procedural bleeding" and noninferiority without relative risk margins My friends, put down those stones, you are going to break something in that glass house Grin. Double Grin. Stay tuned to TWIC.
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John Mandrola, MD retweeted
Another great chat with @AndrewFoy82 and @drjohnm, this time about discontinuing colon cancer screening and progress in learning how to use PTau. This Fortnight in Medicine XXXV open.substack.com/pub/sensib…
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If this prediction comes true and I suspect it will, the cause will be a dearth of medical conservatives in cardiology
I predict that AVR with TAVR removal will become the new CABG on previously stented patients and the number of surgical AVR will re-surge in the years to come. However, the outcomes will worsen because of technical challenges and surgeons’ lack of open training.
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