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publicado em 12/01/2011 às 02h00:00
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Loud snoring and insomnia predict the onset of metabolic syndrome

Research may lead to sleep disorders as causal risk factor for adverse cardiovascular and metabolic changes

 
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Loud snoring and two common symptoms of insomnia, difficulty falling asleep and sleep is not refreshing, can help predict the onset of metabolic syndrome risk factor for cardiovascular disease. Results of a study led by researchers at the University of Pittsburgh Schools of the Health Sciences, United States, provides the first prospective evidence to support a link between the common complaints of sleep and the metabolic syndrome and may lead to such symptoms as causal risk factors for Adverse cardiovascular and metabolic changes.

According to the National Heart, Lung, and Blood, the metabolic syndrome is a set of risk factors related to obesity, which increases an individual's risk for diabetes, heart disease and stroke. A person with at least three of five risk factors is considered as having metabolic syndrome: excess abdominal fat, elevated triglycerides, low HDL cholesterol, high blood pressure and hyperglycemia.

The analysis of these five individual components of metabolic syndrome found that loud snoring significantly predicts the development of high blood sugar and low HDL cholesterol.

The study involved 812 participants between 45 and 74 years of age. Individuals who were classified as having metabolic syndrome or diabetes at baseline were excluded from the analysis. During the three years of follow up, 14% of participants developed metabolic syndrome.

"Our results show that the risk of developing metabolic syndrome after more than three years of follow up was more than two times higher in adults who reported frequent loud snoring," noted study leader, Wendy Troxel. "This risk was also increased by 80% of adults who reported having difficulty sleeping and 70% of those who reported that sleep was not refreshing."

The researchers say these results reinforce the importance of screening for sleep complaints common in routine clinical practice and suggest that they may involve loud snoring as a causal risk factor for adverse cardiovascular and metabolic changes.

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Source: Isaude.net
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