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Intercostal retractions

Retractions of the chest muscles

Intercostal retractions occur when the muscles between the ribs pull inward. The movement is most often a sign that the person has a breathing problem.

Intercostal retractions are a medical emergency.

Considerations

The wall of your chest is flexible. This helps you breathe normally. Stiff tissue called cartilage attaches your ribs to the breast bone (sternum).

The intercostal muscles are the muscles between the ribs. During breathing, these muscles normally tighten and pull the rib cage up. Your chest expands and the lungs fill with air.

Intercostal retractions are due to reduced air pressure inside your chest. This can happen if the upper airway (trachea) or small airways of the lungs (bronchioles) become partially blocked. As a result, the intercostal muscles are sucked inward, between the ribs, when you breathe. This is a sign of a blocked airway. Any health problem that causes a blockage in the airway will cause intercostal retractions.

Causes

Intercostal retractions may be caused by:

When to Contact a Medical Professional

Seek medical help right away if intercostal retractions occur. This can be a sign of a blocked airway, which can quickly become life threatening.

Also seek medical care if the skin, lips, or nailbeds turn blue, or if the person becomes confused, drowsy, or is hard to wake up.

What to Expect at Your Office Visit

In an emergency, the health care team will first take steps to help you breathe. You may receive oxygen, medicines to reduce swelling, and other treatments.

When you can breathe better, the health care provider will examine you and ask about your medical history and symptoms, such as:

  • When did the problem start?
  • Is it getting better, worse, or staying the same?
  • Does it occur all the time?
  • Did you notice anything significant that might have caused an airway obstruction?
  • What other symptoms are there, such as blue skin color, wheezing, high-pitched sound when breathing, coughing or sore throat?
  • Has anything been breathed into the airway?

Tests that may be done include:

Open References

References

Brown CA, Walls RM. Airway. In: Walls RM, ed. Rosen's Emergency Medicine: Concepts and Clinical Practice. 10th ed. Philadelphia, PA: Elsevier; 2023:chap 1.

Rodrigues KK, Roosevelt GE. Acute inflammatory upper airway obstruction (croup, epiglottitis, laryngitis, and bacterial tracheitis). In: Kliegman RM, St. Geme JW, Blum NJ, Shah SS, Tasker RC, Wilson KM, eds. Nelson Textbook of Pediatrics. 21st ed. Philadelphia, PA: Elsevier; 2020:chap 412.

Stephany A. Respiratory distress. In: Kliegman RM, Toth H, Bordini BJ, Basel D, eds. Nelson Pediatric Symptom-Based Diagnosis. 2nd ed. Philadelphia, PA: Elsevier; 2023:chap 4.

 

Review Date: 6/7/2022

Reviewed By: Neil K. Kaneshiro, MD, MHA, Clinical Professor of Pediatrics, University of Washington School of Medicine, Seattle, WA. Also reviewed by David C. Dugdale, MD, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.

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