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Essay on Chronic Obstructive Pulmonary Disease

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Chronic Obstructive Pulmonary Disease

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Definitions and Terminology ---------------------------

There are no universally accepted terminology or definition for the group of conditions characterised by airways obstruction that is completely reversible (Snider, 1996). There are several problems that have to be considered. The first results from the use of the term ‘chronic obstructive pulmonary diseaseÂ’ (COPD), which is considered inaccurate since this is not truly a disease but a group of diseases. The second relates to the British preference for the terms ‘chronic bronchitisÂ’ and ‘emphysemaÂ’, which although describing two conditions with an apparently more precise …show more content…

Emphysema is defined as abnormal, permanent enlargement of the distal airspaces, distal to the terminal bronchioles, accompanied by destruction of their walls and without obvious fibrosis (Snider et al, 1985). Thus chronic bronchitis is defined in clinical terms, whereas emphysema is defined pathologically.

A group of synonyms have arisen, which in the UK include chronic obstructive bronchitis or chronic obstructive bronchitis with airways obstruction; in the USA, COPD, chronic obstructive airways disease (COAD) and chronic obstructive lung disease are favoured. However, the term ‘chronic bronchitis and emphysema’ has often been used loosely to define a patient with chronic cough and associated airflow obstruction, although airflow obstruction does not appear in the definition. The most widely used term is COPD, which has been accepted by the British Thoracic Society (BTS) guidelines on the management of this condition (British Thoracic Society, 1997) and is the title of a major British textbook on the subject (Calverley & Pride, 1996).

Chronic bronchitis has been classified into three forms; simple bronchitis, defined as hypersecretion of mucous; chronic or recurrent mucopurelent bronchitis in the presence of persistent or

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