Lab Wednesday explains why a “good” A1C can still hide daily glucose spikes and crashes, since A1C is an average that masks extremes. It breaks down why Time in Range and glucose variability predict complication risk better, plus the key CGM limitations (pressure lows, lag time, dehydration, false readings). It also covers the once-a-year implantable option Eversense 365 and who benefits most—learn more at sugarmds.com.
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For those looking to safeguard their health, Dr. Ergin also recommends high-quality B12 supplements available at SugarMDs.com. Stay informed and take control of your health with SugarMD! ____________
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🩺 Who is Dr. Ergin? Dr. Ahmet Ergin is an endocrinologist with a particular interest and passion for diabetes care. Dr. Ergin earned his medical degree with honors at Marmara University School of Medicine in Istanbul, Turkey. Then, he completed his internal medicine residency and endocrinology fellowship at Cleveland Clinic in Cleveland, Ohio. He is a board-certified physician in Internal Medicine and Endocrinology, diabetes, and metabolism. He is also a certified diabetes education specialist.
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All right everyone, let me start with something that might sound
controversial but it is absolutely true. A1c can look
perfect while your blood sugar is doing damage
every single day and if all you are looking at is A1c
you are missing the big picture, the most important part of diabetes care.
Today I'm going to explain why A1c is no longer enough
and what the future of diabetes monitoring really looks like
and why a newer way of tracking glucose is changing how we
prevent complications. Make sure you stay until the end because I am also going to
talk about the limitations of the technology which
is continuous glucose monitoring, the mistakes people make with them and
once a year implantable option that actually many people
do not even know that exists. So let me tell you I'm Dr. Amit
and you probably know me. I'm an endocrinologist specializing in
diabetes, weight loss and hormones. I have over 2,000 videos in YouTube
SugarMD, type SugarMD, search whatever you're searching for. You're going to
find a video about weight loss, diabetes and other
hormonal conditions. Now I practice in Port St. Lucie, Florida
here, a mid-sized town in South Florida and it's getting pretty big
actually. The largest, the fastest growing city in Florida right now
but let's get into this. Why A1c is overrated as a standalone test?
I'll tell you this, A1c is just an average
and that's the problem. Averages hide extremes.
You can have an A1c of 6.5 and still spike to 250 after meals.
You can have an A1c of 6.5 and drop to 50 at night.
A same number, just completely different risk
and A1c does not tell me how high you spike after meals,
how often you crash and interestingly even with the same average numbers
different people can have different A1c numbers because the red blood cell
lifespan is different from person to person
and also you know the A1c doesn't really tell me
how stress raises your glucose, how steroids and medications
increase your glucose. Now it doesn't tell you
either A1c has no idea about how sleep is affecting your blood sugar.
It's just a snapshot, it's not a story and diabetes complications are caused by
patterns, okay, not averages. Here's the sensational truth.
Two patients, same A1c, one has smooth stable glucose all day and the other
rides a glucose roller coaster. Only one of them is protected from nerve
damage, heart disease and kidney disease and that difference
does not show up on the A1c. Obviously if it is
you know clearly like your A1c is 10% then
okay that's a different story. That's really high you know
I'm talking about A1c's in the six to seven range
and some people are still getting damaged thinking that they're safe with
that A1c. Now what actually predicts these
complications better, right? This is where the future is already here.
You call this time in range, meaning how often your glucose stays
between 70 and 180. Not the average, the consistency. When
glucose stays in range you get less oxidative stress, less
inflammation, less vascular damage. Now flat glucose
curves also protect your organs. Now the wild
swings damage them. This is why continuous
glucose monitoring has changed everything. Yeah they have
limitations which we will talk about but why CGM is such a game changer, right?
To begin with, a CGM does something that A1c
never can. It shows cause and effect. You eat,
you see the response. You walk, you see the response.
You sleep poorly, you see the response. See it's a very good teacher.
Patients finally understand their own metabolism
and behavior changes a lot faster when feedback is instant. And this is
powerful medicine. But let me be very clear about
CGM limitations. I'm not saying CGMs are perfect. They're not.
Anyone telling you otherwise is just trying to oversell you something.
But let's talk about this honestly. Now false readings
do happen a lot and CGMs, you know, as you know measure glucose in your
interstitial fluid, not your blood. Now that means there is
going to be a delay and there can be inaccuracies.
Now rapid changes can look exaggerated also
and compression can cause false lows. Like when you're sleeping on
that sensor at night we call them compression lows, right?
And dehydration can distort the readings too.
So you must always correlate with symptoms. If CGM says you're 55 but if
you feel perfectly fine, do a finger stick. CGM is a guide, not
the gospel. Now pressure lows can be explained simply.
This is very common. If you sleep on the sensor,
the pressure reduces the local blood flow.
The sensor thinks glucose is dropping but it's not.
You wake up to an alarm. Your heart is racing.
You're panicking that my blood sugar is not down to 30, 40,
50, whatever. Meanwhile your actually blood sugar is normal.
That's not real hypoglycemia. It is just physics.
Understanding this prevents the unnecessary fear and overtreatment and
constantly eating at night. Try to bring your blood sugar up when
it's not really down. CGM is a trend tool,
not a single number tool. If you're looking
at CGM one number at a time, you're missing the picture.
One reading means nothing. Patterns means everything.
This is where the education really matters. A lot of people get on these
devices and it's like, I don't like this.
Its numbers are not right. Well because nobody taught you
how to use these devices. Without guidance
people can misinterpret that data, can make bad decisions.
But CGM without context really will just cause anxiety and some people
just return it for that reason. They'll say, I don't want this.
It's too much, too much alarm, too much information. But if it's used correctly
it actually reduces it. So why A1C and CGM should
work together? Well A1C still has value, right?
But it should never be alone. Think of it like this way.
A1C is a photograph and CGM is a movie. You need both. You need some
snapshots and you sometimes need to watch the whole thing.
Now let's talk about the future option that most people
do not know about. This is where things get kind of interesting.
I'm a proceduralist endocrinologist so I do procedures. I do
thyroid radiofrequency ablation for benign nodules
to shrink them non-surgically. We implant the Eversense 365 sensors as well
because this is just once a year implantable glucose monitor
and when I heard about it I'm like that's pretty cool
because it's one sensor, one procedure and you have 12 months of data.
You don't have to worry about failed sensors. You don't have to worry about
inaccurate results and you have to worry about like
inserting every other week, every 10 days and there are no constant sensor
changes, right? So not a lot of adhesive issues
and yes I personally do this a lot in my practice because people are tired of
Dexcom and Libre giving them problems. Like I told you they're not perfect but
Eversense, I'm not saying Eversense is perfect but
still a whole lot better than Dexcom and Libre.
Now this sensor is implanted under the skin
and it uses a removable transmitter that stays
on the skin. Now it vibrates for alerts instead of constant alarms which is
a huge deal for a lot of patients. This is huge for people who have like
skin reactions to the adhesives with the Dexcom and Libre
or they hate changing sensors, they want long-term stability,
they want better accuracy and consistency is strong
here in the sensor because sometimes people will say well this sensor
versus the other sensor with Dexcom they read differently
and it is true. They're not always the same and calibration requirements are
minimal with the Eversense and yes you do some
calibrations occasionally but that really improves the accuracy. Now
who are great candidates for Eversense? Well
for sure people with type 1 diabetes, patients with type 2 diabetes on
insulin, patients with severe glucose
variability, severe lows, patients who want deeper insights without
the constant hassle and yes you do not need to be on insulin to
benefit necessarily. Now what I see in my practice when
patients are using their CGM properly it's going to cause you know definitely
lower their glucose variability, it's going to
help reduce hypoglycemia, low blood sugars and improve the confidence
in their management. They make smarter food choices
and the biggest shift becomes awareness. You cannot really manage what you cannot
see. Now if you are still managing diabetes
based on A1c alone, you are practicing outdated care. Modern diabetes
management is pattern recognition, not averages.
The goal is boring blood sugar, flat, flat, predictable, stable and here's a
practical takeaway. Ask about time and range. Ask about
glucose variability. Ask whether CGM makes sense for you
and understand its limitations. Use it intelligently
because technology is a tool, not a replacement for a good judgment.
Now A1c tells you where you have been. CGM tells you
what's happening right now and what will happen soon
and prevention happens in the present. If you want to learn more about
the advanced diabetes monitoring, weight loss,
hormone optimization, visit our website. We have two websites
We are right here in Port St. Lucie, Florida
in Treasure Coast. Thanks for watching and remember
the goal is not perfect numbers. The goal is
stable physiology. Talk to you later.