呼吸困难是一种用力呼吸的主观不适感受,亦称作呼吸急促、气短。这是一种常见症状,三级医院急诊中多达半数的患者及门诊医疗中 1/4 的患者就诊时均存在该症状。[1]Parshall MB, Schwartzstein RM, Adams L, et al; American Thoracic Society Committee on Dyspnea. An official American Thoracic Society statement: update on the mechanisms, assessment, and management of dyspnea. Am J Respir Crit Care Med. 2012 Feb 15;185(4):435-52. http://www.atsjournals.org/doi/full/10.1164/rccm.201111-2042ST http://www.ncbi.nlm.nih.gov/pubmed/22336677?tool=bestpractice.com
存在多种呼吸困难感;可通过以下分类来很好的描述:[1]Parshall MB, Schwartzstein RM, Adams L, et al; American Thoracic Society Committee on Dyspnea. An official American Thoracic Society statement: update on the mechanisms, assessment, and management of dyspnea. Am J Respir Crit Care Med. 2012 Feb 15;185(4):435-52. http://www.atsjournals.org/doi/full/10.1164/rccm.201111-2042ST http://www.ncbi.nlm.nih.gov/pubmed/22336677