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OHS Medical Abbreviation

Author: Analgesia logo

Last Updated on February 22, 2025 by Analgesia team

OHS Medical Procedure

OHS stands for obesity hypoventilation syndrome, a breathing disorder that can occur in people who are obese. 

OHS is characterized by: 

  • Hypoventilation: Breathing at an abnormally slow rate, leading to an accumulation of carbon dioxide (hypercapnia).
  • Obstructive Sleep Apnea (OSA): Many people with OHS also have OSA, which causes periods of absence or reduced breathing during sleep.
  • Daytime Sleepiness: Elevated carbon dioxide levels can cause drowsiness and excessive daytime sleepiness.
  • Heart Strain: The condition can strain the heart, potentially leading to heart failure and leg swelling.

OHS can lead to: Lower oxygen levels in the blood, Higher carbon dioxide levels in the blood, A higher risk of cardiovascular disease, and Early mortality. 

Symptoms of OHS include: 

  • Drowsiness
  • Depression
  • Hypertension (high blood pressure)
  • Headaches, especially in the morning
  • Swelling in the legs and abdomen
  • Decreased exercise tolerance
  • Chest pain during exercise

OHS Causes

    • Excess fat around the neck, chest, and belly can make it harder to breathe deeply
    • Excess fat can also produce hormones that affect breathing patterns
    • A brain defect that affects breathing control
Risk factors Increased risk of cardiovascular disease and death and Lower quality of life
Early diagnosis and treatment can improve patient outcomes

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