15 Jun Could a blood test predict OSA?
OSA is linked to common cardiovascular risk factors such as obesity, high blood pressure and type 2 diabetes. Having a blood test is common place as part of a general checkup at the doctors to give important information about possible diabetes, high cholesterol or that there is some other dysfunction in the body.
Common blood tests include the Monocyte count which are a type of white blood cell. High numbers of these indicate the body is fighting off an infection or may also indicate a more serious blood disorder. High density lipoproteins (HDL) are also commonly measured along with low density lipoproteins (LDL) and triglycerides which together are used as an indicator of heart health which may show possible early signs of atherosclerosis and cardiovascular disease.
A recent study has looked at the Monocyte to HDL ratio (MHR) in the blood serum and if the ratio was a predictor for obstructive sleep apnoea.
The investigators found that OSA patients (AHI>5 and excessive daytime tiredness) had a significantly lower monocyte to HDL ratio (MHR) to that of controls (AHI <5). Furthermore, they also found significant differences in the MHR between subgroups of mild, moderate and severe OSA.
These findings suggest the MHR, easily performed by a blood test, could be a useful predictor for OSAS. Another reason to go to have a regular checkup at the doctor.