Central Sleep Apnea
Central Sleep Apnea (CSA) is a sleep disorder in which breathing repeatedly slows or stops during sleep because the brain does not consistently send the proper signals to the muscles that control breathing. Unlike obstructive sleep apnea, which occurs when the airway becomes blocked, CSA is caused by a problem with the body’s breathing control system.
These breathing pauses can happen many times throughout the night, disrupting sleep and reducing oxygen levels. As a result, people may experience daytime fatigue, poor concentration, morning headaches, or unrefreshing sleep.
Because many patients do not snore loudly, central sleep apnea can go unnoticed for years. CSA may occur on its own or be linked to conditions such as heart failure, stroke, neurologic disorders, chronic opioid use, kidney disease, or other medical conditions that affect breathing regulation.
At The Medical Group of New Jersey, our Sleep Medicine specialists utilize advanced sleep testing and comprehensive medical evaluation to identify the underlying cause of central sleep apnea and develop individualized treatment plans that improve sleep quality, breathing stability, and overall health.
Symptom Onset & Initial Evaluation
Symptoms often develop gradually and may initially be mistaken for poor sleep quality, aging, medication side effects, or other medical conditions.
Common symptoms include:
- Excessive daytime sleepiness
- Frequent nighttime awakenings
- Difficulty staying asleep
- Morning headaches
- Poor concentration
- Memory difficulties
- Fatigue despite adequate time in bed
- Shortness of breath during sleep
- Restless sleep
- Reduced exercise tolerance
Some patients have no obvious symptoms and are identified during evaluation for heart disease, neurologic disorders, or unexplained fatigue.
Conditions commonly associated with central sleep apnea include:
- Congestive heart failure
- Stroke
- Atrial fibrillation
- Parkinson’s disease
- Neuromuscular disorders
- Chronic opioid therapy
- Kidney disease
- High-altitude exposure
During your consultation, your sleep physician will review your sleep history, cardiovascular health, neurologic history, medications, and any symptoms suggestive of underlying medical conditions contributing to breathing abnormalities.
Diagnosis
Accurate diagnosis is critical because treatment differs substantially from obstructive sleep apnea.
Comprehensive Sleep Evaluation
Your physician will review your sleep quality, breathing symptoms, daytime sleepiness, cardiovascular history, neurologic conditions, medication use, and previous sleep studies.
Overnight Polysomnography
An overnight sleep study is the primary diagnostic tool for central sleep apnea. The study monitors airflow, respiratory effort, oxygen levels, brain activity, heart rhythm, sleep stages, and body position. Unlike obstructive sleep apnea, central events occur without respiratory effort, allowing specialists to distinguish between the two conditions.
Cardiac Evaluation
Because central sleep apnea is frequently associated with cardiovascular disease, additional testing may include echocardiography, cardiac rhythm monitoring, heart failure evaluation, and blood pressure assessment.
Neurologic Assessment
In selected patients, neurologic evaluation may be recommended to identify disorders affecting respiratory control.
At The Medical Group of New Jersey, our specialists collaborate closely with cardiology, pulmonology, and neurology providers to determine the cause of breathing abnormalities and guide treatment decisions.
Treatment
Treatment focuses on stabilizing breathing patterns, improving sleep quality, and addressing underlying medical conditions.
Treatment of Underlying Conditions
Managing the underlying cause often improves central sleep apnea significantly. This may involve treatment of heart failure, cardiac arrhythmias, neurologic disorders, kidney disease, or medication-related causes.
Positive Airway Pressure Therapy
Many patients benefit from specialized breathing devices used during sleep. Treatment options may include CPAP (Continuous Positive Airway Pressure), BiPAP (Bilevel Positive Airway Pressure), or Adaptive Servo-Ventilation (ASV). These therapies help stabilize breathing and reduce respiratory events throughout the night.
Supplemental Oxygen
Selected patients may benefit from nighttime oxygen therapy to maintain healthy oxygen levels during sleep.
Medication Adjustments
When opioid medications or other drugs contribute to breathing abnormalities, treatment may involve collaboration with prescribing physicians to adjust therapy when medically appropriate.
Lifestyle Measures
Patients are encouraged to maintain a healthy weight, limit alcohol consumption, follow regular sleep schedules, optimize cardiovascular health, and manage chronic medical conditions.
Ongoing Management & Prevention
Central sleep apnea often requires ongoing monitoring because symptoms and severity can change as underlying medical conditions evolve.
Long-term management may include:
- Regular sleep medicine follow-up
- PAP therapy monitoring
- Repeat sleep studies when indicated
- Cardiovascular monitoring
- Medication review
- Management of associated medical conditions
With appropriate treatment, many patients experience improved sleep quality, greater daytime alertness, and better overall health outcomes.