03 Types Of Sleep Apnea: OSA, CSA, CompSAS

03 types of sleep apnea

If you get enough sleep but still feel tired, have difficulty concentrating or feel sleepy during the day. Then it is very likely that you are having sleep problems. This condition, if prolonged, will greatly affect the quality of life and lead to many health problems. A typical disease related to sleep disorders is sleep apnea, which has affected millions of people worldwide. Join CLM Sleep to learn more about the types of sleep apnea as well as recognize the signs, risk factors and treatment directions.

Basic Information on Types of Sleep Apnea

Sleep apnea is a serious sleep disorder characterized by repeated interruptions in breathing during sleep. This occurs due to a blockage in the airway or a failure in the brain’s signals to the muscles that control breathing, leading to poor sleep quality and various health issues. 

There are three common types of sleep apnea:

  • Obstructive sleep apnea (OSA) is the most common type and occurs when the muscles in the throat relax excessively, causing a temporary blockage of the airway.
  • Central sleep apnea (CSA) is less common and occurs when the brain fails to send the appropriate signals to the muscles that control breathing. 
  • Complex Sleep Apnea, also known as mixed sleep apnea, is a condition where both obstructive sleep apnea OSA and CSA are present. This occurs when the brain fails to send the correct signals to the muscles responsible for breathing.

See more:

Apnea Meaning: Understanding the Causes, Types, and Treatments

Obstructive sleep apnea (OSA)

Obstructive sleep apnea (OSA) is the most common type of sleep apnea, accounting for about 84% of cases. OSA occurs when the muscles in the back of the throat relax excessively during sleep, causing a temporary blockage of the airway. This blockage causes breathing to stop, typically lasting 10 to 30 seconds and can occur multiple times during the night, leading in loud snoring, choking, or gasping. OSA can result in fragmented sleep, excessive daytime drowsiness, and an increased risk of heart disease and high blood pressure.

Symptoms of OSA

Below are some common symptoms of OSA: 

  • Loud snoring
  • Gasping for air during sleep
  • Frequent awakenings with a dry mouth or sore throat
  • Daytime fatigue
  • Morning headaches
  • Difficulty concentrating

See more: Can You Have Sleep Apnea Without Snoring?

Risk Factors for OSA

The major risk factors for OSA are: 

  • Obesity
  • Large neck circumference
  • Narrow airway
  • Being male
  • Smoking
  • Use of sedatives or alcohol before bed
  • Family history of sleep apnea

Treatment Options for OSA

  • Continuous Positive Airway Pressure (CPAP) therapy
  • Lifestyle changes (weight loss, quitting smoking)
  • Oral appliances
  • Surgery in severe cases

Central sleep apnea (CSA)

Central sleep apnea (CSA) is less common, accounting for only about 5% of cases. CSA occurs when the brain fails to send the appropriate signals to the muscles that control breathing. Unlike OSA, there is no physical blockage of the airway. Instead, CSA is caused by a problem with the brain’s respiratory control center. This type of sleep apnea often affects individuals with underlying medical conditions such as heart failure or stroke. CSA can also lead to irregular breathing patterns and periods of no breathing during sleep, causing disrupted sleep and daytime fatigue.

Symptoms of CSA

  • Periods of paused breathing during sleep
  • Shortness of breath that wakes you up
  • Difficulty staying asleep (insomnia)
  • Excessive daytime sleepiness
  • Chronic fatigue
  • Morning headaches
  • Difficulty concentrating

Risk Factors for CSA

The major risk factors for CSA are: 

  • Age (more common in older adults)
  • Heart disorders
  • Stroke
  • Use of narcotic pain medications
  • High-altitude environments

Treatment Options for CSA

  • Adaptive Servo-Ventilation (ASV)
  • CPAP or BiPAP devices
  • Treatment of underlying medical conditions
  • Supplemental oxygen

Complex sleep apnea (CompSAS)

Complex sleep apnea (CompSAS), also known as mixed sleep apnea or treatment-emergent central sleep apnea, is the most severe form of sleep apnea. Initially, a person may have obstructive sleep apnea, which is characterized by a physical obstruction of the airway. However, after starting treatment for OSA, central sleep apnea may sometimes develop. It combines features of both Obstructive Sleep Apnea (OSA) and Central Sleep Apnea (CSA). This makes it more complex to treat, as it involves both physical airway obstruction and central nervous system issues, potentially leading to more severe health risks if left untreated. 

Symptoms of CompSAS

  • Symptoms similar to both OSA and CSA 
  • Severe daytime sleepiness
  • Frequent arousals during sleep
  • Difficulty adapting to CPAP therapy
  • Persistent symptoms despite treatment for OSA

Risk Factors for CompSAS

  • Initial diagnosis of OSA
  • Ineffective CPAP therapy
  • Existing heart or neurological conditions

Treatment Options for CompSAS

  • Adjustments to CPAP settings
  • BiPAP or ASV therapy
  • Ongoing monitoring by a sleep specialist
  • Alternative therapies in severe cases
  • Surgery

See more: Guide to Sleep Apnea Test At Home: Quick and Easy

CLM Sleep Clinic – specializes in treating sleep apnea

We have a network of clinics spread across Australia, especially in Adelaide, Melbourne, and soon there will be more clinics in Tasmania Island. Committed to bringing speed, convenience and accuracy. The team of doctors at CLM Sleep will conduct

  • Diagnostic and Investigative Services: Examination and selection of methods to conduct sleep studies including home sleep studies, Level 3 sleep studies, Laboratory sleep studies, …
  • Treatment Programmes: Apply comprehensive treatment methods such as CPAP Programme, 360° Sleep Programme, Sleep Coaching Programme, Diet & Weight Management Programme, RECLAIMsleep Programme, Sleep Dental Programme, Sleep Positional Therapy
  • Consulting on choosing the right size and style of cpap machine for effective treatment

Some of CLM’s major clinics

1. CLM Sleep Co. Kent Town, Adelaide

Store details: 57 Fullarton Road, Kent Town, SA, 5067, Australia

Phone: 08 8166 0811

2. CLM Sleep Co. Alice Springs

Store details: Alice Springs Pharmacy, Yeperenye Shopping Centre Shop 46/36-38, Hartley Street, Alice Springs, NT, 870, Australia

Phone: 08 8952 1554

3. CLM Sleep Co. Bacchus Marsh

Store details: Lung and Sleep Victoria, 32 Gisborne Road, Bacchus Marsh, VIC, 3340, Australia

Phone: 03 9967 1027

4. CLM Sleep Co. Footscray

Store details: Lung and Sleep Victoria, 35 Summerhill Road, Footscray, VIC, 3011, Australia

Phone: 03 9967 1020

5. CLM Sleep Co. Broken Hill

Store details: Williams Street Surgery, 139 Williams Street, Broken Hill, NSW, 2880, Australia

Phone: 08 8087 5522

Conclusion

It’s important to consult with a sleep specialist to determine the most appropriate treatment plan for your specific needs. They will determine the exact types of sleep apnea and assess your individual situation and recommend the best approach based on factors such as the severity of your symptoms, underlying health conditions, and personal preferences.

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