A brief update on the #Simplera now that I'm three days into using it.

Whilst I haven't been closely tracking proximity to fingerpricks, I've done the occasional "soft calibration".

The Dexcom ONE that went on at the same time appears to be tracking more closely.

#ATTD2024 The Simplera is regularly between 0.5mmol and 1.5mmol lower than the Dexcom ONE. At the current readings, it's a bit over 18% lower.

This sensor has been consistently low, but this is n=1.

The sensor is susceptible to compression lows, just like the ONE.

#ATTD2024

@MDT_Diabetes #Simplera time....

#ATTD2024 Because we're now entering the "Simple Era"....

🤔

#ATTD2024

So, we're off on Roche talking about their new CGM. How close were Diabettech's predictions?

#ATTD2024
via @diabettechdiabettech.com/cgm/a-new-cgm-… Lots of focus on sleep and Hypos in @drpratikc 's presentation. Wonder why? 🤔

Remember this? Well now we've a few measurements to try and figure out how well it really works.

Obviously as an Interstitial Fluid based sensor there are going to be differences compared to blood tests, but what are they? /1

https://twitter.com/Tims_Pants/status/1681019325912850432

Firstly, it seems that CKMs are prone to the same compression problems as CGMs, which should be no real surprise. You can see this here overnight where readings are lost. /2

After two weeks, the #BattleRoyale (an n=1 comparison) for CGM is done. And there's clear water between the three sensors being tested, which were the Dexcom G6 & G7, plus the #Libre3. What follows is a brief summary of the results. /1 First up, the consensus error grids for all three sensors. Firstly, the Dexcom G6:
/2

If you're in #Lomdon and have #T1D, you may be interested in this thread. It outlines the @NHSLdn_CN for Diabetes pan-London plan for #cgm access.

There are three linked documents and some commentary.

#GBDoc

/1 The first document is the written pathway, that outlines the suggested implementation of NG17 across London:

england.nhs.uk/london/wp-cont…

#CGM
#GBDoc
/2

#SixOfTheBest CGMs on the same grid.

Data from an n=1 experiment.

Caveat 1: earlier grid had an error, giving readings incorrect dispersion.

Caveat 2: Libre2 data from an earlier experiment due to device failing early in this test and replacement taking 10 days.

Thread.

/1 Calibration was done according to manufacturer directions:

Dexcom ONE & G6 - never;
Aidex - when I felt it was needed;
Glucomen Day - every 24 hours;
Medtrum Nano - Factory calibration was enabled, but calibration was done when it appeared to drift too much;
Libre2 - never.

/2

So the new @Glucomen sensor has been attached. Here's how you configure the inserter: /1 And then put it into the insertion device... /2