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Dyspnoea

Last reviewed dd mmm yyyy. Last edited dd mmm yyyy

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Shortness of breath or dyspnoea is a subjective phenomenon where a person feels like running out of air and of not being able to breathe fast or deeply enough (1).

The American Thoracic Society (ATS) defines dyspnoea as:

“A subjective experience of breathing discomfort that consists of qualitatively distinct sensations that varies in intensity” (2).

Physiological breathlessness is the sensation of increased work of breathing which the patient usually recognises as being normal for the current level of physical exertion.

Pathological breathlessness is experienced in situations which would not normally cause laboured breathing, e.g. climbing a few stairs or lying down.

Dyspnoea can be classified as

  • acute - breathlessness which develops over minutes, hours, or days
  • chronic - breathlessness which develops over weeks or months

Reference:

  1. Zoorob RJ, Campbell JS. Acute dyspnea in the office. Am Fam Physician. 2003;68(9):1803-10
  2. Booth S et al. Pharmacological treatment of refractory breathlessness. Expert Rev Respir Med. 2009;3(1):21-36

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The content herein is provided for informational purposes and does not replace the need to apply professional clinical judgement when diagnosing or treating any medical condition. A licensed medical practitioner should be consulted for diagnosis and treatment of any and all medical conditions.

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