Sleep Apnoea: Causes, Signs, and Treatment

Sleep apnea is a condition where a person's breathing stops and starts repeatedly during sleep. This interruption in breathing can lead to reduced oxygen levels in the body, affecting overall well-being. The primary impact of sleep apnea on health is disrupted sleep patterns and decreased quality of rest, which can lead to daytime fatigue and other health issues over time.

Symptoms of Sleep Apnoea

Sleep apnea typically presents with several common symptoms that affect sleep quality and overall well-being. These symptoms often include disruptions in breathing during sleep, excessive daytime fatigue, loud snoring, and frequent awakenings throughout the night. 

Additionally, individuals with sleep apnea may experience morning headaches, irritability, difficulty concentrating, and dry mouth upon waking up. If left untreated, sleep apnea can lead to serious health complications, making it essential to seek medical evaluation and appropriate management.

  • Loud snoring
  • Pauses in breathing during sleep
  • Gasping or choking sensations
  • Waking up frequently during the night
  • Daytime sleepiness
  • Morning headaches
  • Difficulty concentrating
  • Irritability or mood changes
  • Dry mouth or sore throat upon waking
  • Insomnia

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Causes of Sleep Apnoea

Sleep apnea occurs when the muscles in the throat relax too much during sleep, causing the airway to become blocked. This obstruction leads to breathing pauses or shallow breaths, disrupting normal breathing patterns. 

Factors such as obesity, anatomical abnormalities, aging, and family history can contribute to the development of sleep apnea. Additionally, lifestyle factors like smoking, alcohol consumption, and sedative use can increase the risk of experiencing this condition. Ultimately, sleep apnea can have various causes, all of which affect the proper functioning of the respiratory system during sleep.

  • Obesity
  • Age
  • Smoking
  • Alcohol consumption
  • Nasal congestion
  • Genetics
  • Neck circumference
  • Gender differences
  • Medications
  • Anatomical factors

Types of Sleep Apnoea

Sleep apnea comes in different forms, each characterized by the way breathing pauses during sleep. These types vary in causes, symptoms, and severity, impacting individuals differently. Understanding the distinctions between these forms is crucial for proper diagnosis and treatment.

  • Obstructive Sleep Apnoea (OSA): The most common type, occurs when the throat muscles relax during sleep, blocking the airway intermittently.
  • Central Sleep Apnoea: In this type, the brain fails to send signals to the muscles that control breathing, leading to pauses in breathing during sleep.
  • Mixed Sleep Apnoea: Combines features of both obstructive and central sleep apnoea, where airway obstructions and lack of respiratory effort contribute to breathing interruptions.
  • Complex Sleep Apnoea Syndrome: Also known as treatmentemergent central sleep apnoea, this type involves recurrent central apnoeas despite the use of continuous positive airway pressure (CPAP) therapy.
  • Positional Sleep Apnoea: Characterized by breathing pauses that predominantly occur when sleeping in certain positions, often alleviated by changing sleep posture.

Risk Factors

Sleep apnea is a sleep disorder with various risk factors that can contribute to its development. These risk factors can increase the likelihood of experiencing sleep apnea symptoms. Understanding these risk factors can help individuals identify potential concerns and seek appropriate medical advice for diagnosis and treatment.

  • Obesity
  • Age
  • Male gender
  • Family history of sleep apnoea
  • Smoking
  • Alcohol consumption
  • Nasal congestion
  • Enlarged tonsils or adenoids
  • Use of sedatives or tranquilizers
  • Neck circumference

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Diagnosis of Sleep Apnoea

Sleep Apnoea is typically diagnosed through various assessments that evaluate a person's sleep patterns and breathing during sleep. These assessments help healthcare providers determine if an individual has Sleep Apnoea and its severity. The diagnostic process may involve monitoring breathing, sleep stages, and oxygen levels during sleep. 

Additionally, clinical evaluations and patient history are considered to reach an accurate diagnosis. A healthcare provider may recommend further tests for a comprehensive assessment if Sleep Apnoea is suspected.

  • Polysomnography
  • Home Sleep Apnea Testing
  • Epworth Sleepiness Scale
  • Physical Examination
  • Imaging Studies (e. g.
  • Blood Tests( CT scan, MRI)

Treatment for Sleep Apnoea

Treatment options for sleep apnoea may include lifestyle changes, such as weight loss and avoiding alcohol before bedtime. Continuous Positive Airway Pressure (CPAP) therapy is a common treatment method that involves wearing a mask during sleep. 

Oral appliances and surgery may also be recommended in certain cases. It is important to consult a healthcare provider to determine the most suitable treatment plan for individual needs.

  • Continuous Positive Airway Pressure (CPAP) Therapy: CPAP therapy involves wearing a mask that delivers pressurized air to keep the airways open during sleep, effectively treating sleep apnea.
  • Oral Appliance Therapy: Oral appliances are custommade devices worn during sleep to reposition the jaw and tongue, helping to keep the airway open and reduce apnea episodes.
  • Lifestyle Changes: Weight loss, regular exercise, avoiding alcohol and sedatives, and sleeping on your side can help improve sleep apnea symptoms by reducing airway obstruction.
  • Surgery: In severe cases or when other treatments fail, surgical options such as uvulopalatopharyngoplasty (UPPP) or maxillomandibular advancement may be considered to alleviate sleep apnea.
  • Positional Therapy: Positional therapy involves using devices or techniques to encourage individuals to sleep on their side rather than their back, which can help prevent airway collapse during sleep.
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Frequently Asked Questions

What are the common symptoms of sleep apnoea?

Common symptoms include loud snoring, daytime fatigue, morning headaches, and pauses in breathing during sleep.

How is sleep apnoea diagnosed?

Sleep apnoea is typically diagnosed through a sleep study (polysomnography) conducted in a sleep clinic or at home using portable monitoring devices.

What are the treatment options for sleep apnoea?

Treatment options include continuous positive airway pressure (CPAP) therapy, oral appliances, lifestyle changes, and in some cases, surgery.

Can untreated sleep apnoea lead to complications?

Yes, untreated sleep apnoea can lead to serious health complications such as high blood pressure, heart disease, stroke, and increased risk of accidents due to daytime drowsiness.

Are there risk factors that increase the likelihood of developing sleep apnoea?

Risk factors for sleep apnoea include obesity, aging, being male, having a family history of the condition, smoking, and certain anatomical factors like a narrow airway or enlarged tonsils.

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