My doctor has lately been telling me that Minimed/Medtronic is going to close the loop very soon now in providing an artificial pancreas based on today’s CGM and pump technology. Given my own experience, as well as the responses I’ve gotten to my post Continuous Glucose Monitoring with Medtronic/MiniMed Updated, I find this rather difficult to believe. I’m curious whether anyone reading this blog would actually trust their lives to CGM technology telling your pump how much to pump, removing yourself from the loop. However, this peer reviewed article seems to confirm his comments.
Personally, even if I have a way to override this, I would be very uncomfortable with it. For starters, I find the device to accurately track my blood glucose about 80-90% of the time at most. Then, there’s the issue of the 15-20 minute lag. Further, I sometimes have issues with slow insulin absorption, especially during long drives. Unless they combine this with their old implantable pump technology that delivers insulin into the renal vein and unless they find a way to continuously monitor blood glucose rather than interstitial glucose, I think I’m going to have to pass on this.
At least that’s my initial take on the situation. Even at 90% accuracy, it means that it is putting my life at risk 10% of the time. That’s just not acceptable to me. I need much higher reliability. Or, perhaps if I can override the device on days when I know it is not tracking, that would help. More importantly, I think I would want to have to actively confirm that I believe it to be tracking accurately in order to use it. I think that is what might make me trust it, some active confirmation on my part that I believe it working for the next N hours and then I must reconfirm later.
To me, this is still too scary to trust with my life. The reliability just isn’t there. I’ll let you know if I hear or read something that changes my mind.
What do you think?