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Skin monitor gives frequent glucose readings
Skin monitor gives frequent glucose readings -- Posted by Gumbo on 10-24-04 12:39
Skin monitor gives frequent glucose readings
Sep 16 (Reuters Health) - Using a low-level electrical current across the
skin, the GlucoWatch Biographer device can supply as many as three glucose
measurements per hour.
Also, the readings are comparable in accuracy to those obtained using
finger-prick blood samples, researchers from the manufacturer (Cygnus,
Redwood City, California) report in the medical journal Diabetes Care.
The device is worn like a wristwatch and measures glucose in fluid exuded
from the skin, rather than in blood.
It can provide people with diabetes and their doctors "with important
information about changing glucose levels around mealtimes that mirrors
changes in blood glucose levels," Cygnus medical director and co-author of
the study, Dr. Richard C. Eastman, told Reuters Health.
This is the only practical means of getting such information, he added, as
"the costs, discomfort, and inconvenience of conventional glucose monitoring
for obtaining several values before and after meals are prohibitive."
Eastman and his colleagues studied 124 people with type 1 or type 2 diabetes
requiring insulin. They used the Biographer at home during the day and took
finger-prick glucose measurements hourly, for five consecutive days. The
Biographer automatically took up to three measurements per hour over a
12-hour period.
The researchers found that glucose values were almost as unstable before
meals as they were afterwards. The Biographer was effective in tracking
trends and yielded results similar to those obtained with finger-prick blood
samples.
The availability of this information, Eastman concluded, "could influence
decisions about meal timing, content, and insulin injection dose and timing,
supplementing management decisions which are typically made based on a
single static blood glucose reading before meals."
The US Food and Drug Administration approved the GlucoWatch Biographer for
use in adults in March 2001 and for children and adolescents the next year.
SOURCE: Diabetes Care, September 2004.
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