Sue Marshall blogs about diabetes for Desang

Insulin Pumps Might Have Slight Advantage in Type 1 Diabetes -Diabetes news- | January 20, 2010

New evidence review suggests that using a pump to deliver insulin continuously — instead of taking three or more daily injections — might result in better control of blood sugar for people with type 1 diabetes.

“The findings of this review tell us that both continuous subcutaneous insulin infusion and multiple injections correct blood glucose levels. However, [continuous infusion] may be better for reducing harmful fluctuations in blood glucose,” said lead author Marie Misso, Ph.D.

Type 1 diabetes — which used to be known as juvenile diabetes — results when the pancreas is not able to secrete enough insulin, causing the levels of glucose (or sugar) in the blood to rise.

Chronically high blood glucose can lead to heart attacks, circulation problems and blindness. Low levels can lead to unconsciousness and even death. Type 1 diabetes is one of the most common chronic diseases of childhood.

Most people with the condition control their glucose by injecting themselves with insulin three or more times per day. Others choose to use a pump, which gives continual, smaller doses of insulin without the discomfort of injections.

“There are numerous studies that evaluate these treatments, but most are of poor quality,” said Misso, a research fellow at the Monash Institute of Health Services Research in Clayton, Australia. “So there has been uncertainty about which treatment is best for maintaining consistent levels of blood glucose and reducing harmful fluctuations.”

In the new review, Misso and colleagues analyzed the results of 23 studies that assigned 976 adults and children to one of the two interventions randomly. Researchers looked at measures such as levels of hemoglobin A1c (or HbA1c), a widely used marker for assessing long-term glucose control. They also looked at the incidence of both high and low blood glucose.

The review appears in the latest issue of The Cochrane Library, a publication of the Cochrane Collaboration, an international organization that evaluates medical research. Systematic reviews draw evidence-based conclusions about medical practice after considering both the content and quality of existing medical trials on a topic.

While participants using the insulin pump had significantly lower HbA1c levels than those using multiple daily injections, no differences existed between the two for non-severe low blood glucose levels. However, there appeared to be a reduction in severe incidents of low blood glucose among those using the pump.

via Insulin Pumps Might Have Slight Advantage in Type 1 Diabetes -Diabetes news-.

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