They do not represent the findings from a multi-subject, randomized, controlled study. The Medtronic likes calibrations. Wrong. Too bad, because I like the integration with the 670G pump. Hi Joy, We are updating our pump comparison page now, it should be ready any time now. The bottom line is this: Medtronic still isn’t up to par with Dexcom when it comes to accuracy. (USA) 877-735-3648. Even when my insurance stopped paying and I had to use expired donated sensors, they worked perfectly. They do not pair with a pump, but they are good for 14 days and require no fingerstick calibration. I wish I read this before getting the 630g. After 3 great years and 1 really bad year, I’m going to spend money elsewhere. You can call Medtronic and talk to a person who can answer questions, you can order a device, and the process of getting a replacement device takes very little effort. However, many people who use an insulin pump prefer to have a receiver/display that can be carried separately for ease of access and detection of alarms. Questions about our services? Love love love my Medtronic 640g with Enlite sensors. Connie, As a Medtronic pump user for over 9 years and CGM user for 5 years, I’d take the customizable alert alarms and. Dexcom G6 CGM System Support Categories. The main purpose for CGMs is to track real time data – to be alerted of potential problems ( for me lows). I had to tote 10 items to manage my Medtronic sensor changes, but only 3 for Dexcom (see list and photo below). In many cases, insurers make the process of receiving coverage onerous and needlessly complex. Keeping with common practice, I wore each sensor for as long as it was functioning and performing reasonably well. Always remember, the comparisons above are based on an “N of 1” (me only). Medtronic added some of the doctor reports to their site recently, but it is hard to figure out which ones to use. But, given that not many of us have a fully equipped lab to tote around all day, the best we can do is evaluate the systems based on how they compared to our handy-dandy meters. Medtronic’s radio transmitter contains a memory chip that stores up to 40 minutes of data and submits i to the receiver in case the receiver was out of transmission range. Thanks very much for such a practical evaluation. I can’t get my t:slim X2 pump to stay connected to my Dexcom transmitter. My experience trying to order the Dexcom CGM, however, was painful. Great article – Hoping either the Abbott or Medtronic devices are better. Data may be shared with several “followers” and the alerts are fully customization. Medtronic held an investor meeting earlier this week, which included a presentation on the company’s diabetes device pipeline – including CGM, apps, and its next-gen closed plans. Will keep researching. Most recently, they announced a project to morph the DIY Loop app that automates insulin delivery into a commercial product. The Dexcom mobile app has the added benefit of allowing the user to choose from nearly two dozen audible patterns for each type of alert – making it nice to hear somthing other than a “BEEP” for an alert. I also tried both, as I am an offshore sailor/ long distance runner/ old guy, but I decided on Medtronics, not because of the product, but how they handled their customers. The G4 transmitter tends to last 9-12 months and the G5 transmitter lasts 3 months. This represents the difference between fingerstick meter values and sensor glucose values, so a lower MARD is better. Most people are willing to put up with some minor inconveniences if the system generates reliable data on a consistent basis. It is visible in both bright and dark lighting. That never happened when I was on the Dexcom system. The first two calibrations of the Medtronic CGM should be done 2 hours apart, but you can shorten it to 15-20 minutes apart and the sensor will stabilize. But the gap is narrowing. How does the t:slim X2 insulin pump work with Dexcom G6 CGM? I agree Connie and John – I also use Medtronics CGM and it has helped me catch lows and suspend the pump before lows. Secondly, the multiple daily calibrations needed for the Minimed sensors require at least three finger sticks each – more if you enter follow up BGs as prompted and re-calibrate instead of declining a calibration (they don’t explain that in the manual). Learn how your comment data is processed. The pump that receives a signal from the Enlite sensor has the ability to react in an automatic fashion. Accuracy is a matter of life and death. A positive aspect of the Medtronic 640G is that the Contour Next Link Blood Glucose Meter communicates with the pump, which makes calibrating the CGM an extremely simple process. • New automated closed-loop systems promise better control with less “mental burden”. Days 1-7: 13.4%            Days 1-6: 16.6%, Days 8-14: 13.2%          Days 7-12: 25.6%. The Medtronic likes calibrations. My daughter has finally decided to give the CGM a try and the Dexcom was recommended. A calibration reading of 150mg/dl and a sensor value of 120mg/dl represents a MARD of 20% (a 30-point difference on a value of 150). The Dexcom allows 2 consecutive calibration readings, and then you do not calibrate for 12 hours. I would love an updated comparison now that Dex Has partnered with another company and has an integrated pump. But, more importantly, the 530G’s “threshold suspend” feature automatically stops the pump’s basal insulin delivery when the glucose falls below a specified threshold (set by the user). I have moved to using only the G5 receiver device for monitoring the past few months. You should check them out! Both systems continue to underestimate glucose levels more often than overestimating…which is good for those trying their best to avoid hypoglycemia, but not ideal for those who are striving for the tightest control possible. I can’t take anymore of dexcom mistakes. Fingerstick values taken with a home-use meter are intrinsically less accurate than lab values, and this contributes to a greater degree of inaccuracy by the CGM. Any advice would be appreciated. An insulin pump that is CGM capable means that you can see and track your glucose levels. The sites were prepared appropriately and rotated consistently. Here is the most important piece. Dexcom continues to provide a more accurate, user-friendly system, but Medtronic is a step ahead when it comes to data analysis/reporting and integration with automated insulin delivery. Gary, not difficult to figure out your bias. Unlike earlier versions of both systems, accuracy on “day 1” was not all that bad (19.0% MARD for Medtronic and 14.8% for Dexcom). Editor's note: This article was updated on January 8th, 2019. The guy who called simply filled out the web form information and said he would pass it on to “sales.” When I finally heard from sales, they passed me on to a distributor who will have to call me “sometime next week, probably.” I have never had this problem with Medtronic. The Dexcom allows 2 consecutive calibration readings, and then you do not calibrate for 12 hours. As a compatible data extraction tool, it also allows HCPs to upload patient data to Dexcom CLARITY for use in more comprehensive reports. The battery lasted over a week on vibrate. Dexcom also took a major step backwards with its Clarity app/software (necessary for generating reports from the G5 system). I was starting to re-evaluate my pump choice too- especially in light of the MINIMED 670G SYSTEM’s FDA approval. The main reason i went to a pump and CGM was for controlling night time lows and while it’s not 100% perfect i find it very easy and simple to use. The online charts are difficult to read, and many useful charts are only on the professional edition doctors use. Hi Nicole, good news is on the horizon. I have one, so I do not really need to switch from the 530G, but the Dexcom continuous glucose monitor would be nice. Medtronic’s latest CGM features their new-generation Enlite sensor, which has undergone a series of manufacturing improvements in order to provide better adhesive, less trauma upon insertion, and better/more consistent enzyme chemistry. I will not get into technical differences, just observations. Thank you so much this is an excellent report, I really appreciate all of the hard work. I have to return every third sensor. so i got approved by my insurance for a medtronic pump i get it on monday!! Although you only have to do 1 test every 12 hours, it does not hurt to calibrate more often. If this was a boxing match, it would probably be a split decision in favor of Dexcom. However, insertion of Dexcom is a simpler process requiring fewer steps and less equipment. New and improved software programs (plus a brilliant new book called “Practical CGM”) provide guidance on how to interpret/analyze CGM reports, yet few patients bother to look at their own data, and very few healthcare providers have the expertise to convert the reports into useful therapeutic insight to help guide their patients. I use the Minimed Connect option (a separate key chain device) to send data from the pump to my iPhone. They are not yet FDA approved in the US,(we have to have a friend in England order them and ship them over), but in trials right now. Their sensors have malfunctioned countless times, and my transmitter malfunctioned and left me in a l lurch. There is a significant difference in transmitters. My last correction is on the “Data Sharing”. Yes, Medtronic’s sensor data displays on their insulin pumps. Dexcom sensors appears to maintain their accuracy when used beyond 7-days. Between the finger-stick hell and gross inaccuracies that are the Minimed system, I can’t take it anymore. Dexcom CGM transmitters can only be paired with one medical device (either a Dexcom receiver or t:slim X2™ insulin pump) and one consumer device (phone or tablet) at the same time. CGM Display: Nothing is changing with the hardware, and Tandem says the pump interface looks very much like the first-gen combo device of the t:slim and Dexcom G4. Here, I am only reviewing the 530G with Enlite sensor and Dexcom G4 Platinum for continuous glucose monitoring. Alarms on the Dexcom are strong and simple. Today, for those of you who might want to know more, he goes a bit more in-depth, explaining the roles of the sensor, transmitter and insulin pump in the system. The t:slim X2 insulin pump is integrated with the Dexcom G6 CGM, allowing you to view your CGM value, graph, and trend arrow, as well as receive any Dexcom alerts and alarm, right on your t:slim X2 pump. The sensor is quite large compared to the Enlite. MiniMed™ 670G system includes our newest and most advanced CGM, the Guardian™ Sensor 3 and the Guardian™ Link 3 transmitter. there’s something to be said for a system that doesn’t leave a lot to chance. Medtronic’s cell phone app display does offer excellent size and contrast but requires one to carry a “connect” fob in order to send the data from the transmitter to the phone app. After using the Medtronic CGM for 2 weeks I can understand why it cannot be used to determine how much insulin to dose. The charts are clear, they give you an estimated A1C after 14 days worth of data, and give you clear trends. The latest on Dexcom’s work with Verily to make a more simple and accessible CGM; also, the “Pro Q” professional CGM and insulin dosing advice for people on multiple daily injections. Objective: Set up a watch face and data field for Dexcom, Libre, or Medtronic** CGMs on a compatible Garmin device (see next step for compatible devices). Just my take on this matter. Support wise, Medtronic has Dexcom beat hands down. This sensor is NOT impacted by acetaminophen! The Enlite will complain about calibration errors if an input value is off from what the sensor reads by more than about 40 points. Medtronic sensor and transmitter combo lays flatter on the body and thus is easier to wear than the Dexcom combo. the Dexcom G5 system; the Dexcom G6 system; the older Medtronic CGM system (MiniMed Paradigm REAL-Time Revel or Enlite), and other CGM or CGM-like devices (Abbott’s FreeStyle Libre) if the data is uploaded to Nightscout and the OpenAPS rig has Internet connectivity. The cost of CGM is prohibitive for me so that would be helpful. I can’t afford to change to Dexcom, although I would like to try their system, so I will return to Libre. The Dexcom becomes less sensitive with more calibrations, unless you follow specific recalibration requirements. Sorry, your blog cannot share posts by email. Great review. 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