That link was to explain what it is. I didn't know I had it either until the pulmonologist found it during the period my primary care doctor was trying to find my issues. Obstructive Apnea effects high blood pressure and reduced oxygen levels and puts stress on the cardiovascular system. The pulmonologist determined that I was stopping breathing and average of 20 times and hour. Of course my primary care and the pulmonologist and local cardiologist thought that was driving my symptoms. After about 4 months, my primary care doctor understood that it wasn't the only thing going on.

It did specifically mention cardiovascular problems:

"Metabolic syndrome. This disorder, which includes high blood pressure, abnormal cholesterol levels, high blood sugar and an increased waist circumference, is linked to a higher risk of heart disease."

Cardiovascular problems. Sudden drops in blood oxygen levels that occur during central sleep apnea can adversely affect heart health.

If there's underlying heart disease, these repeated multiple episodes of low blood oxygen — known as hypoxia or hypoxemia — worsen prognosis and increase the risk of irregular heart rhythms.