Obstructive sleep apnea-hypopnea syndrome - OSAHS

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It is a respiratory disorder that occurs during sleep, in the form of shallow breathing (hypopneas) and even breathing pauses (apneas) that cause hypoventilation due to upper airway obstruction. The oxygen level drops and carbon dioxide increases, causing a small awakening and loud snoring before normal breathing is restored. 

Most of the patients who present it are overweight. 

It manifests with daytime sleepiness, poor memory and attention, mood swings, headache and promotes chronic fatigue. Lack of oxygen can trigger other underlying problems.

It is suspected by questioning the patient and family, but a sleep study needs to be performed in the hospital to diagnose it.

Weight loss if necessary, side sleeping, smoking cessation and avoidance of large meals before bedtime are advised. If it persists, a machine that introduces pressurized air into the lungs and prevents airway obstruction may be necessary.

Bibliographic references
  1. Kingman P Strohl. Overview of obstructive sleep apnea in adults. UpToDate. Jun 24, 2016.
  2. Epstein LJ, Kristo D, Strollo PJ Jr, et al. Clinical guideline for the evaluation, management and long-term care of obstructive sleep apnea in adults. J Clin Sleep Med 2009; 5:263.
  3. Young T, Skatrud J, Peppard PE. Risk factors for obstructive sleep apnea in adults. JAMA 2004; 291:2013.
  4. Young T, Palta M, Dempsey J, et al. Burden of sleep apnea: rationale, design, and major findings of the Wisconsin Sleep Cohort study. WMJ 2009; 108:246.
  5. Lewis R Kline. Clinical presentation and diagnosis of obstructive sleep apnea in adults. UpToDate. Sep 29, 2016.
  6. Meir H Kryger, Atul Malhotra. Management of obstructive sleep apnea in adults. UpToDate. Oct 07, 2016.
Author
Dr. Sara Vitoria
Copyright
© TeckelMedical 2026

Symptoms

    Snoring at night


    Daytime sleepiness


    Tiredness / fatigue


    Overweight or obese, BMI between 25 and 29.9


    Obesity, BMI higher or equal to 30

Symptoms to watch out for

Difficulty breathing
A feeling of shortness of breath

Self-care

Eat a balanced diet: increase consumption of fruits, vegetables, and white meats, and reduce consumption of fatty and fried foods.
Maintain a fluid intake of 6 - 8 cups per day.
Get regular physical activity at least 3 times a week that is appropriate for your age and physical condition.
Reduce alcohol consumption.
Lose weight if you are overweight or obese.