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    Insulin Pump Feature May Prevent Low Blood Sugar

    Device could improve quality of life for people with type 1 diabetes, experts say

    WebMD News from HealthDay

    By Serena Gordon

    HealthDay Reporter

    TUESDAY, Sept. 24 (HealthDay News) -- A new type of insulin pump reduced the number of moderate to severe low-blood-sugar episodes experienced by people with type 1 diabetes.

    The pump has a special sensor that can detect dropping blood-sugar levels and then suspend insulin delivery to prevent the development of dangerously low blood sugar (hypoglycemia), according to the researchers.

    "Hypoglycemia is a major problem in diabetes treatment," said study senior author Dr. Timothy Jones, of Princess Margaret Hospital for Children in Perth, Australia. "The aim of the trial was to test whether a new type of insulin pump reduces life-threatening hypoglycemic events in patients with type 1 diabetes."

    "We found, in a randomized trial, that this technology was able to prevent severe hypoglycemia," he said. "We don't like to be dramatic, but this may save lives, and certainly will improve quality of life and diabetes control."

    The findings are published in the Sept. 25 issue of the Journal of the American Medical Association.

    Type 1 diabetes is an autoimmune condition in which the body's immune system mistakenly destroys the insulin-producing cells in the pancreas. Insulin is a hormone that helps usher blood sugar into the body's cells to be used as fuel. Without insulin, blood-sugar levels rise and eventually reach life-threatening levels.

    Since their bodies no longer produce insulin, people with type 1 diabetes must replace that lost insulin. To do this, they must either take multiple daily injections of insulin or use an insulin pump that has a tiny catheter inserted underneath the skin to deliver the insulin.

    Getting the right amount of insulin can be difficult, however. People with diabetes have to factor in the amount of food they've eaten, their activity levels and many other factors that can affect blood sugar, and then figure out how much insulin they need.

    If they get too much insulin, dangerously low blood-sugar levels can occur. Early symptoms of hypoglycemia can include shaking, sweating, confusion and a rapid heartbeat. If left untreated, hypoglycemia can cause seizures and even death, according to the American Diabetes Association. Too little insulin can cause high blood-sugar levels (hyperglycemia), which increases the risk of diabetes complications over time.

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