Dmitry Yaranov @heart_transplant_doc
Work with Dmitry
Dr. Yaranov at a lectern in a lecture hall, looking up at the screen

The deep end, inplain language.

One real idea from advanced heart medicine per lesson, written to read and cite.

Start with lesson 01 See every lesson

A turning point: education became another form of patient care.

Most people meet heart failure in an emergency room. I would rather they meet it on their phone, months earlier, in plain language they can act on.

Dmitry Yaranov, MD, FACC
@heart_transplant_doc
  • His own post: Before it scares you, understand it. Real cardiology. No noise. @heart_transplant_doc
  • A slide from his teaching carousel: stimulant medications increase heart rate, raise blood pressure and trigger arrhythmias, with higher risk in vulnerable patients
  • Lesson 01The plaque your stress test never sawHeart School, 3 min read
  • Lesson 02Slower breathing can calm the heartHeart School, 3 min read
  • Lesson 03Six hours is not hustle, it is damageHeart School, 3 min read
  • Lesson 04Your blood pressure may not be your blood pressureHeart School, 3 min read

One arc, taught in three stages.

Every lesson is filed under one of these three.

Medical illustration of a heart cut open to show its chambers and valves
Patrick J. Lynch and C. Carl Jaffe, MD, Yale University, CC BY 2.5, adapted.

When the heart fails

What goes wrong, and why the standard workup so often misses it. See the lesson
Medical illustration of a heart with a mechanical pump attached
Blausen.com staff, CC BY 3.0, adapted.

Support and transplant

How mechanical and surgical therapy resets a failing heart. Writing next
Medical illustration of a whole heart seen from the front
Patrick J. Lynch and C. Carl Jaffe, MD, Yale University, CC BY 2.5, adapted.

Life after

The evidence for how patients live well once the acute threat has passed. See the lessons

Patrick J. Lynch and C. Carl Jaffe, MD, Yale University, CC BY 2.5, adapted.

Blausen.com staff, CC BY 3.0, adapted.

Patrick J. Lynch and C. Carl Jaffe, MD, Yale University, CC BY 2.5, adapted.

Every lesson, written out in full.

Each one takes a single idea, explains it properly, and leaves the sources open at the bottom so you can check the work. Every lesson opens in full, with no account and no paywall.

Nothing is listed here until the lesson behind it is written. If a card has an arrow, you can read it right now.

When the heart fails

The plaque your stress test never saw

A normal stress test rules out flow limiting narrowing, not the softer plaque where most heart attacks actually begin. 3 min readRead the lesson
Dr. Yaranov in a white coat beside the cath lab table Support and transplantWriting next

Nothing published here yet.

Mechanical support and transplant is the work I do every day, and it is the part of this arc I have not written up. It is the part I am writing next.

Get it the day it goes up

Life after

Slower breathing can calm the heart

A long, unhurried exhale gives the vagus nerve more room to work, and four, two, six is one simple way to use it. 3 min readRead the lesson

Six hours is not hustle, it is damage

Chronic short sleep is not a productivity flex; it is a cardiovascular exposure with real heart failure and stroke risk attached. 3 min readRead the lesson

Your blood pressure may not be your blood pressure

The number on the screen depends on your cuff, your arm, your bladder, and whether you were talking. Here is how far it can move. 3 min readRead the lesson

Lesson illustrations, adapted. Plaque, blood pressure: BruceBlaus / Blausen Medical, CC BY-SA 4.0. Breathing: Patrick J. Lynch and C. Carl Jaffe, MD, Yale University, CC BY 2.5. Sleep: BruceBlaus / Blausen Medical, CC BY-SA 3.0.

Written to read, find, and cite.

Every lesson here is written out in full and built to last, not a caption that scrolls away. Many began as teaching carousels on @heart_transplant_doc, and more of them move here as the licensing is finalized.

I write them the way I explain things at the bedside: one idea, in plain words, with the paper open next to it. That takes time, which is why the list is short and grows slowly.

Read this lesson in full

Heart SchoolLesson 013 min read

The plaque your stress test never saw

Dmitry Yaranov, MD, FACC

A normal stress test is one of the most reassuring sentences in medicine, and one of the most misunderstood.

The clearest look at this came from the PROSPECT study, published in 2011. Nearly 700 patients had all three coronary arteries imaged with intravascular ultrasound after an acute coronary syndrome, then were followed for about three years. About half of the later cardiac events traced not to the artery that had been treated but to other lesions, and on the original angiogram those lesions had looked only mildly narrowed, averaging about a third of the vessel diameter.1

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New therapies, new stories, and what is changing in heart failure care. Sent when there is something worth saying.

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