Meter Research From the ADA Scientific Sessions
Diabetes researchers at the American Diabetes Association’s 65th Annual Scientific Sessions in San Diego made thousands of presentations this year. Of the 2,851 available abstracts, 55 were about blood glucose testing. That’s a small percentage of the total. But after winnowing through them, I found lots of gold.
Testing on the Palm
Four presentations looked at the palm of the hand as a place to test. My first reaction was, Ouch!
In fact, testing on the palm hurts less than on a fingertip. One team of researchers came to this conclusion after analyzing studies of 290 people. When I brought myself to test on my palm, I agreed.
Another presentation compared how well palm and fingertip results compared for 181 people. Overall, the readings differed by only 2 percent. The difference was a bit more when levels were rising fast (4 percent) or dropping fast (5 percent).
Two other studies compared palm and fingertip tests among 95 people with heart problems and among 35 children. These studies confirmed that the results of the palm and fingertip tests are essentially the same.
But don’t test just anywhere on the palm. The researchers tested on the protruding area near the base of the thumb and near the base of the little finger along the edge of the palm.
Sources: 2031-PO, 391-PO, 2037-PO, 2036-PO
Detecting Hypos Noninvasively
Two studies reported on trials of a noninvasive meter that detects the onset of hypoglycemia. AiMedics, an Australian company, says that its HypoMon meter will detect blood glucose levels below 45 mg/dl and provide an alarm. Top company officers made both presentations. They say that in tests with 20 volunteers, the HypoMon was highly accurate.
Sources: 386-P, 619-P
Validation of Recent Reports
A report by six researchers compared the performance of the TheraSense FreeStyle Navigator* and the Medtronic MiniMed CGMS. (“Meter News’ columns in the February and April 2005 issues of Diabetes Health reported on these continuous glucose sensors.) The researchers found the meters to be similar at normal blood glucose levels, but the Navigator’s performance was better for measuring hypos.
Three groups of Japanese and American researchers studied the 1,5-anhydroglucitol (1,5-AG) test, the basis of the GlycoMark, reported in the June issue of Diabetes Health. They found this test to be an excellent marker of blood glucose control, a strong predictor of high levels after meals and possibly a good way to detect prediabetes.
Sources: 394-P, 307-OR, 389-P, 392-P
New Continuous Glucose Sensors
Two research groups evaluated an implantable continuous sensor being developed by DexCom, a San Diego-based company. In about 8,000 tests, it performed well.
PreciSense, a Danish company, says that it is developing a sensor that is not only continuous but also noninvasive and biodegradable. It will use fluorescent pellets that the body absorbs after at least 14 days of use.
Today the PreciSense sensor seems to offer an almost unbelievable combination of features. But just a few years ago, we couldn’t have imagined any of these meters.
Sources: 398-P, 3-LB
* The FreeStyle Navigator is an investigational device. Limited by the United States FDA to investigational use only.Click Here To View Or Post Comments