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GlucoWatch Improves Diabetes Control

Device Helps Children Monitor Blood Glucose Levels, especially at Night
By
WebMD Health News

April 29, 2003 -- A wristwatch-like device that automatically monitors blood glucose levels helps people with type 1 diabetes better manage their disease. Children participating in a newly published study had better blood sugar control when they wore the GlucoWatch Biographer than when they used conventional monitoring methods.

The study is the first to show that using the GlucoWatch Biographer, which gives glucose readings as often as every 10 minutes, allows patients to better adjust their insulin levels and stay within normal ranges. The GlucoWatch Biographer appears especially useful for detecting dangerously low blood sugar during sleep. This is a common problem in diabetes management, which can lead to seizures and even death.

Boulder, Colo., teenager Mathew Cooper, 13, was one of the first diabetic people in the country to wear the special watch, and his mom, Sonia, says it has taught them a lot about his nighttime blood sugar patterns. Mathew typically wears the device several times a week while sleeping.

"When kids hit the teen years, it is a time when they have a lot of adjustments to their insulin," Sonia Cooper tells WebMD. "Insulin use tends to go way up during puberty, so it is nice to have a tool to help us identify these trends."

Roughly 1 million Americans have type 1, or insulin-dependent, diabetes. Once known as juvenile-onset diabetes because it is most often diagnosed in children and adolescents, type 1 diabetes occurs when the body fails to produce insulin.

Proper management of the disease requires careful monitoring of glucose levels, which has traditionally meant drawing blood at least four times a day. New technologies for monitoring blood sugar require less frequent fingerstick testing.

The GlucoWatch Biographer, manufactured by the Redwood City, Calif., company Cygnus Inc., uses extremely low electric current to pull glucose through the skin. An initial blood sample is needed each day to calibrate the device, but it then automatically monitors glucose levels as frequently as every 10 minutes for up to 13 hours. An alarm sounds when blood sugar levels become too high or too low.

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