Benoy Shah MD Profile picture
Sep 21, 2020 15 tweets 17 min read Read on X
**VALVE CASE OF THE WEEK**

OK, this starts off about valves...but then isn't really about valves...but it's the broader educational point (which is relevant to valves) that I want to make this week...no poll I'm afraid, but as always, comments encouraged! 😁

@BrHeartValveSoc
In my office doing Admin, lot to get through & a very busy morning ahead. Asked to r/v a TTE for helping determine AS severity. Pt admitted with heart failure, clinically severe AS is all I know at this point. Now, the golden rule in this situation is *review the whole study*...
Not just one or two images.

But I was super-busy, I BROKE MY OWN RULE and just looked at the relevant images. Here's the PW and CW Doppler tracings (Pt in AF)...
Here's a PSAX view. Images were challenging...

With low velocities and AVA 1.36 I wasn't too worried about severe AS, although did note very low LVOT VTI...but tracing could have been an underestimate due to image quality.

So I said quickly not severe AS, moderate at worst.
Next day asked to look again. Colleague convinced clinically AS was severe. So, this time, with more time dedicated to this, I look at the *whole* study, from the beginning, and now something else starts going through my mind! See what you think...here's the PLAX view...
Anything catch your eye? Apart from the monumental LA? Well, I was curious about something so checked out Ap4Ch...👇

What do you think? No BBB on the ECG...

Septum looking a bit funky, right?!

So, next stop...IVC!
IVC measured 25mm with minimal collapse with breathing / sniff...

So, remembering that "a bouncy septum and a dilated IVC is xxx until proven otherwise"....now I decided to check out the other parameters. Some of you know where this is going...
MV Doppler shows tall E wave with rapid deceleration time. And check out the TDIs...lateral E' velocity is 13.7! Medial E' is 14.9! They're not normal, they're supranormal! And... they're the wrong way round... that's annulus inversus!!
So, actually, we've got:
-Septal bounce
-Dilated IVC
-Tall MV E wave with short DT
-Supranormal LV E' velocities
-TDI annulus inversus
-Dilated atria (albeit AF)

So now, I'm less worried about AV and I'm wondering...why are there multiple features of constrictive physiology?!
Turns out a CT scan has commented on unusual thickening of the pericardium!! Cardiac cath awaited.

So, by looking at the *whole* scan, you see the *whole* picture! Sounds so simple, but in the daily hustle of work it's so easy to be tempted into looking at 1 or 2 images only...!
Take home message 1: if you're scanning, always think about the numbers you're measuring and images you're seeing...the echo request can't tell you what you may unexpectedly find, so you've got to be alert to expect the unexpected!

Take home message 2: For those asked to review
echocardiograms, if it's a "what's the severity of xxx?" question remember to take the time to check all the images...you never know what you may find! 😁

This week's case dedicated to our friend Nicolas @NMerke...hope all is well & look forward to seeing your posts again soon👊

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More from @dr_benoy_n_shah

Mar 17
*Mitral valve assessment by TTE*

Transthoracic echocardiography (TTE), when performed with care and diligence, can reveal a lot about the valve. TOE isn't necessary in all cases to determine leaflet pathology.

A worked example below:
In the PLAX view, you can assess the scallops of the leaflets

In a true PLAX view with aortic valve clearly visible, you mostly see the A2-P2 interface. Here, you can see a clear & large prolapse of the posterior leaflet
If you tilt upwards towards the PLAX RV outflow (pulmonary valve) view you see mostly the A1-P1 interface

Here, you can see the valve looks slightly different & no prolapse is seen
Read 17 tweets
Feb 29
Good teaching case for Fellows from a recent emergency scan

Happy heart or unhappy heart?

What can you deduce from these spectral Doppler traces of mitral (left) and tricuspid regurgitation (right)?

#echofirst #cardiotwitter #ACCFIT
Image
Image
Lots of excellent replies. A lot of information to glean from 'just' the CW Doppler traces

The ECG is broad and with a pacing spike just before the QRS complex...so a pacemaker is in situ

MR trace: faint, not severe MR by jet density

But look at the MR Vmax, not even 4m/s!

1/
MR Vmax is normally 5-6m/s in normal LV function.

If the Vmax is a low as this, it either reflects a weak LV, or very high left atrial pressure...or both. It's often both

So the MR CW Doppler suggests:

a) significant LV dysfunction
b) non-severe MR

2/
Read 5 tweets
Dec 16, 2023
As we approach the end of 2023, what was the most important paper you read this year?

Mine wasn't in cardiology

I think this went under the radar a little, but it shouldn't have...the impact of private equity (PE) takeovers in healthcare

An end-of-year 🧵
Image
Image
Before going further, we should clarify what PE actually is. Now, I am NOT a financial expert at all, but here goes...!

PE is essentially the investment of capital (equity) into a private (non-public listed) company or business. Read this for more 👇🏽

hbr.org/2007/09/the-st…
PE has garnered a reputation for huge profits as they typically buy into a company, aggressively ⬇️ costs whilst ⬆️ profit margins, leverage debt if needed, and then sell, often at a large profit

Does this matter when it comes to delivering healthcare services?
Read 15 tweets
Oct 11, 2023
Sixty years ago this month - October 1963 - US cardiologist Dr Robert Bruce published a paper detailing his efforts to devise a multi-stage treadmill test

Little did he know this would go on to become the Bruce protocol the most widely used for exercise testing

A thread...
Image
Image
Prior to this, 'stress testing' to evaluate cardiac function was performed using the Masters 2-step technique, first described in 1935. This crude but simple test involved repeated steps up & down over 90 seconds

sciencedirect.com/science/articl…
Bruce, amongst others, recognized the limitations of this test & set about developing an exercise treadmill test

His initial work focused upon a single stage protocol, but he soon realized this wasn't stressing fitter patients enough & the test was taking too long!

Image
Image
Image
Read 12 tweets
Sep 11, 2023
Thank you Denisa for sharing our Discussion Forum piece recently published in EHJ CVS Img

It's something that I've thought about a lot in recent years, so finally decided to put thoughts down on paper!

A brief 🧵...
Image
We know now that it is perfectly possible for symptomatic individuals to have abnormal stress tests, with inducible ischaemia, but not have significant epicardial CAD on angiography

So we should stop using epicardial CAD as the arbiter of whether the test is 'right' or 'wrong'
I helped recruit patients for #ISCHEMIA between 2012-13; we saw at least a dozen patients with barn door (core lab verified) abnormal stress tests but normal coronaries on angiography

Here is just one example! Rest on left, stress (exercise) on right...
Read 5 tweets
Jul 2, 2023
The #NHSWorkforcePlan is a 151 page PDF

I have been through it. Here's what you need to know - a summary & some thoughts

Long 🧵incoming...

1/
It starts off with a foreward from current NHS CEO Amanda Pritchard

A recognition of the challenges the NHS faces & a summary of what they are proposing to do:

Train
Retain
Reform

More on this later in the details...

2/

TRAIN

They want to double medical school places & nearly double nursing training places

They propose to introduce medical apprenticeships...more on this later

Also a desire to be less reliant on overseas staff

3/

Read 36 tweets

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