Hi martina,
I have a son, he´s got 6th birthday today. If you have problems with hypo, I can only recommend you this system.
Just like the others mentioned higher, the Medtronic pump 640G with Enlite helps a lot.
We are using this pump since May and my son had approx. 4 hypos (under 60) since that time.
Guardian stops insulin dosing before the hypo can come and starts when GL comes back into normal.
The accuracy is very good, but you have to calibrate at least 3 or 4 times a day. That means check blood glucose when the GL curve on CGM is flat without dramatic changes. If you do a calibration when GL rapidly changes, you can disorient the CGM and then it come inaccurate. That´s the most often reason why people report inaccuracy, but they did it by ownselves.
You have to also have on mind, that CGM has 10-15 minutes delay after blood glucose, so when CGM alerts that GL falls down really fast (marked by from 1 up to 3 arrows on display) the real GL is much lower than CGM calls. But after a week you will be able to predict what happen next.
What I heard from other parents, model of Enlite CGM sold before (2nd generation) from Medtronic wasn´t so acccurate, so I had some doubts about the new one, but after these few months - I can only recommend.
The second and I think the most important thing is, that you can react with insulin dosing really quickly.
We changed our basal profile ca. 5 times since May because children often changes the sensitivity to insulin because they have a lot of growth hormones in their bodies (especially in night) and they are mostly blocking efectiveness of insulin. So our basal profile is that we apply ca. twice time more insulin in the night than during a day. And maybe we have to increase a little bit more.
One more effective thing is, that you can look after how your daughter react for different types of food.
For example milk and products from it are really slow by our boy, but for dumplings we need extra charge of insulin.
With CGM you know how fast and when give an insulin dose to prevent extreme highs or lows after food (when insulin act faster than carbs).
Last night we started on 140 and at 1 a.m. the pump stopped because he fel on 94. After 1 hour the GL came on 100 and he woke up at 6:30 with 122. Amazing work, don´t you thing ? Without CGM you have normally no chance to check and solve this situation.
And one fine thing on the end. If you have 640G and Bayer ContourLink glucose meter (normally packed with 640G), you can download all data from CGM and pump to your computer (Carelink website) and look back to the past (graphs, charts and so on) and manage the dosing for future.
If you will have more questions, please write me an replay and I will tell you more details.