Almost good enough for an artificial pancreas
I don’t think I told you yet, but I touched the future this summer. I held it in my hands. Stroked its buttons. A gem-like CGM prototype that’s absolutely frickin’ amazing. How amazing? Well, let me detour for a moment into (gasp!) math so you can understand. Don’t panic, it’s more math vocabulary, than math. I want you to meet my friend, MARD.
MARD stands for Mean Absolute Relative Difference. Crudely put, when it comes to Continuous Glucose Monitors, MARD is the difference between what blood sugar really is and what the CGM thinks it is. So basically, it’s a measurement of how accurate any CGM system is.
How accurate does a CGM need to be? It depends on what you want to do with it. CGM wiz Dr. Howard Zisser told me a while back “Give me a MARD of 10% and I’ll give you an artificial pancreas.” So that’s our bench mark. 10% gives you what your heart desires most. Short of a cure.
The jewel I touched, held, fondled, worshipped (and was tempted to steal) this summer had a MARD of 13%. Not good enough for an artificial pancreas, but damn fucking good. Better than most test strips, actually.
And when will we eventually see this wonder of new technology?
Well, how does next week sound to you?
Or maybe the week after next. But it’s here. It’s FDA approved. It’s shipping soon.
Want to know more about it? Want to know all about it? Stay tuned for an in-depth day-by-day month-long review of the latest and greatest CGM like only LifeAfterDx can bring you. The Dexcom G-4 Platinum review is coming soon to a computer screen near you. (Right. That would be the one right in front of your face.)