Sleep Apnea – Types, Causes and Symptoms

Pulmonology • August 12, 2024

Sleep Apnea – Types, Causes and Symptoms

Sleep apnea is a common yet serious sleep disorder characterized by repeated interruptions in breathing during sleep. These interruptions, known as apneas, can last from a few seconds to minutes and can occur multiple times throughout the night, leading to poor sleep quality and a range of health issues.

Types of Sleep Apnea

Obstructive Sleep Apnea (OSA)

The most prevalent form – occurs when the muscles in the back of the throat fail to keep the airway open. This blockage can be caused by obesity, enlarged tonsils, or a naturally narrow throat, and often results in loud snoring or choking noises as the body resumes breathing.

Central Sleep Apnea (CSA)

Less common – occurs when the brain fails to send the proper signals to the muscles that control breathing. Unlike OSA, snoring is not a prominent feature.

Complex/Mixed Sleep Apnea

A combination of obstructive and central sleep apnea, often diagnosed when OSA treatment reveals underlying central apnea.

Common Causes

  • Excess weight and obesity
  • Enlarged tonsils or adenoids
  • Narrow airway anatomy
  • Family history
  • Smoking and alcohol use
  • Nasal congestion

Symptoms to Watch For

  • Loud snoring
  • Episodes of stopped breathing witnessed by others
  • Gasping for air during sleep
  • Morning headaches
  • Excessive daytime sleepiness
  • Difficulty concentrating

If you suspect sleep apnea, consult a pulmonologist for evaluation and a sleep study. Early treatment prevents complications like hypertension, heart disease and stroke.