Sleep Disorder May Increase Gout Risk

by Iswarya on  August 31, 2018 at 12:20 PM Respiratory Disease News
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People with obstructive sleep apnea (OSA) have a greater risk of developing gout, especially in the first years after the sleep apnea diagnosis, reports a new study. The findings of the study are published in the journal Arthritis & Rheumatology.
Sleep Disorder May Increase Gout Risk
Sleep Disorder May Increase Gout Risk

OSA is associated with a range of serious comorbidities, and it has previously been shown that people with OSA have a higher risk of developing gout.

To investigate whether they may also be more likely to develop gout over a longer term, a team led by Edward Roddy, DM and Milica Blagojevic-Bucknall, Ph.D., of Keele University in the UK, examined information on 15,879 patients with OSA and 63,296 without, with a median follow-up of 5.8 years.

During follow-up. 4.9% of OSA and 2.6% of non-OSA patients developed gout. Incidence rates per 1000 person-years were 7.83 and 4.03 among those with and without OSA, respectively, for a 42% increased risk among OSA patients. (A person-year is the number of years of follow-up multiplied by the number of people in the analysis.)

An elevated risk of developing gout was observed throughout follow-up for OSA patients, but it was highest one to two years after diagnosis of OSA. This finding was seen in patients with normal body mass index as well as those who were overweight or obese; however, the risk was greater in those with normal weight.

"People with sleep apnoea are at an increased risk of gout in both the short and long term. Since this risk was highest in people with normal body mass index, doctors, and other health professionals should consider the possibility of gout in patients with sleep apnoea regardless of body mass index," said Dr. Roddy.

It's thought that intermittent oxygen deficiency due to OSA leads to over-production of uric acid, which causes gout. "Sleep apnea is commonly treated with continuous positive airways pressure or CPAP--therapy. Since CPAP treatment corrects low oxygen levels it might also be expected to reduce uric acid levels, which could reduce the risk of developing gout or treat existing gout; however, further research is needed to investigate the effect of treatment with CPAP in people with gout," said Dr. Blagojevic-Bucknall.

Source: Eurekalert

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