Sleep Apnea: Why You Might Wake Up Gasping for Air - Otolaryngology

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Waking up suddenly due to an inability to breathe during sleep?


Hello Doctor, sometimes when I sleep at night, I wake up in the middle of the night feeling like I can't breathe, experiencing a sensation of suffocation, which causes me to wake up gasping for air.
I went to a large hospital for a sleep study, and the doctor mentioned that my blood oxygen level was relatively low at 86, but there were no significant issues, and I wasn't advised to undergo any further treatment or follow-up.
However, recently, the frequency of feeling like I can't breathe while sleeping has increased, so I have scheduled a follow-up appointment.
This time, I would like to ask the doctor if I could suffocate from not being able to breathe and not be able to wake up again, as I am very worried.
Thank you, Doctor.

Mr. Hsu, 20~29 year old female. Ask Date: 2023/06/20

Dr. Ji Zhaoyun reply Otolaryngology


Hello, it is recommended to schedule a sleep study at a hospital and follow up with a sleep specialist in the outpatient clinic.
Alternatively, you can consult a physician who specializes in sleep medicine as mentioned in the institution's introduction.
If the lowest blood oxygen level is 86, the risk of sudden death during sleep is indeed quite low; however, it is still advisable to seek consultation with a sleep specialist.

Reply Date: 2023/06/20

More Info


Sleep apnea is a serious condition that can significantly impact your overall health and quality of life. It is characterized by repeated interruptions in breathing during sleep, which can lead to a variety of symptoms, including gasping for air, loud snoring, and excessive daytime sleepiness. The experience of waking up gasping for air can be alarming and is often associated with obstructive sleep apnea (OSA), where the airway becomes blocked during sleep.

When you experience episodes of not being able to breathe while sleeping, it is typically due to the relaxation of the throat muscles, which can collapse and obstruct the airway. This obstruction can lead to a drop in blood oxygen levels, as you mentioned, which can trigger a reflex to wake up and gasp for air. In your case, a blood oxygen level of 86% is considered low and indicates that your body is not receiving enough oxygen during these episodes. This can lead to a range of complications over time, including cardiovascular issues, cognitive impairment, and mood disturbances.

Your concern about the possibility of suffocating and not waking up is understandable. While it is rare for someone to die from sleep apnea, the condition can lead to serious health problems if left untreated. The good news is that there are effective treatments available for sleep apnea, which can help alleviate your symptoms and improve your quality of life. These treatments may include lifestyle changes, the use of continuous positive airway pressure (CPAP) machines, oral appliances, or even surgery in severe cases.

It is crucial that you follow up with your healthcare provider, especially since you have noticed an increase in the frequency of your symptoms. A sleep specialist can provide a comprehensive evaluation and recommend appropriate treatment options based on the severity of your condition. They may suggest a repeat sleep study to monitor your breathing patterns and oxygen levels during sleep, which can help determine the best course of action.

In addition to medical treatment, there are several lifestyle modifications that can help manage sleep apnea. These include:
1. Weight Management: If you are overweight, losing even a small amount of weight can significantly reduce the severity of sleep apnea.

2. Sleep Position: Sleeping on your side rather than your back can help keep your airway open.

3. Avoiding Alcohol and Sedatives: These substances can relax the throat muscles and worsen sleep apnea.

4. Regular Sleep Schedule: Maintaining a consistent sleep routine can improve sleep quality.

5. Nasal Breathing Aids: If you have nasal congestion or sinus issues, using nasal strips or a humidifier may help improve airflow during sleep.

6. Oral Appliances: These devices can help keep your airway open by repositioning your jaw and tongue.

In conclusion, while your experiences with sleep apnea can be distressing, it is important to remember that you are not alone, and effective treatments are available. By working closely with your healthcare provider and making necessary lifestyle changes, you can manage your symptoms and improve your overall health. Don't hesitate to reach out for help, as addressing sleep apnea can lead to better sleep quality, increased energy levels, and an overall improvement in your well-being.

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