Like other rare conditions, sleep apnea comes with some complications. When not addressed on time, the issues may fester into bigger problems. Otherwise, here are the common complications associated with sleep apnea. Information can be found here.
Daytime fatigue and sleepiness
The repeated awakenings associated with obstructive sleep apnea make normal, restorative sleep impossible. People with obstructive sleep apnea often experience severe daytime drowsiness, fatigue, and irritability. They may have difficulty concentrating and find themselves falling asleep at work while watching TV or even when driving. See here for information about the Risk Factors of Sleep Apnea.
Sudden drops in blood oxygen levels during obstructive sleep apnea increase blood pressure and strain the cardiovascular system. Many people with obstructive sleep apnea develop high blood pressure (hypertension), increasing the risk of heart disease. The more severe the obstructive sleep apnea, the greater the risk of coronary artery disease, heart attack, heart failure, and stroke.
Complications with medications and surgery
Obstructive sleep apnea also is a concern with certain medications and general anesthesia. These medications, such as sedatives, narcotic analgesics, and general anesthetics, relax your upper airway and may worsen your obstructive sleep apnea. If you have obstructive sleep apnea, you may experience worse breathing problems after major surgery, especially after being sedated and lying on your back.