Central Sleep Apnea Complications: Risks and Management

medica-seed-editor · November 6, 2026, 2:58am

Central sleep apnea occurs when the brain fails to signal the breathing muscles, causing repeated pauses in air intake. These interruptions can increase the risk of Central Sleep Apnea Complications.

Understanding Central Sleep Apnea

This condition involves a communication failure between the brain and the muscles that control breathing, unlike obstructive sleep apnea where the airway is physically blocked. While some people experience harmless pauses after a deep sigh or upon waking, those with this disorder suffer from frequent, abnormal interruptions.

Some individuals experience both obstructive and central types, a condition known as mixed sleep apnea.

What causes severe central sleep apnea?

Several factors and medical conditions can trigger these breathing interruptions:

Medical Disorders: Heart failure, stroke, severe kidney disease, and neurological conditions such as Parkinson’s, Alzheimer’s, or ALS.
Brain Damage: Injuries, swelling (encephalitis), or strokes affecting the brainstem.
Medications: Opioids, including morphine, oxycodone, codeine, and methadone, can disrupt breathing patterns. Benzodiazepines, antidepressants, and anticonvulsants also pose risks.
Environmental Factors: High altitude, typically 2,500 meters (8,000 feet) or more, can cause periodic breathing.
Treatment-Emergent: Between 5% and 15% of people using positive airway pressure for obstructive apnea may develop this central form.
Idiopathic: In rare cases, no identifiable cause exists. A genetic version called congenital central hypoventilation syndrome affects about one in 200,000 children.

Symptoms and Risk Factors

The primary sign is pauses in breathing during sleep, often noticed by a partner. Snoring is less common than in other forms of apnea. Other symptoms include:

Waking up gasping or short of breath.
Morning headaches and daytime fatigue.
Memory issues, mood changes, or difficulty concentrating.
Insomnia or poor sleep quality.

Men and people over age 65 face a higher risk. This may stem from the aging process or a higher prevalence of related health issues, such as hypothyroid disease or congestive heart failure.

Diagnosis and the Apnea Machine

Assessment begins with a physical exam and medical history. A polysomnogram, or overnight sleep study in a specialized lab, provides the definitive diagnosis by monitoring brain activity, heart rate, blood oxygen, and respiratory effort.

To treat the condition, doctors may prescribe an apnea machine, such as:

CPAP: Delivers a constant stream of air to keep airways open.
ASV or BPAP: Alternative pressure devices for those who cannot tolerate CPAP.
Supplemental Oxygen: Used instead of or alongside pressure therapy.

Other options include a surgically implanted nerve stimulator that triggers the diaphragm or medications to stimulate breathing, such as acetazolamide or theophylline.

Managing Central Sleep Apnea Complications

Untreated disorder can lead to severe health problems. Potential Central Sleep Apnea Complications include:

Uneven heartbeat and high blood pressure.
Increased risk of stroke, heart failure, or heart attack.
Development of obesity and diabetes.
Higher likelihood of driving or workplace accidents due to extreme fatigue.

FAQ

What is central sleep apnea caused by?

It occurs when the brain fails to send the correct signals to the muscles that control breathing. This can result from brainstem injury, the use of opioid medications, or underlying health issues like heart failure.

How is it different from obstructive sleep apnea?

In obstructive sleep apnea, the body attempts to breathe but the airway is blocked. In central sleep apnea, the body stops attempting to breathe because the brain does not initiate the signal.

Can it be treated without a machine?

Treatment depends on the cause. Some cases are managed by stopping certain medications or treating the underlying kidney or heart condition. Lifestyle changes, including avoiding alcohol and maintaining a healthy weight, can also help.

When to see a doctor

Consult a healthcare provider if you or a partner notice these warning signs:

Gasping for air or frequent pauses in breathing during sleep.
Persistent morning headaches.
Falling asleep during quiet tasks or excessive daytime sleepiness.
Shortness of breath during physical activity or when lying down.

Disclaimer: This content is for informational purposes only and does not substitute for professional medical advice, diagnosis, or treatment