Asthma COPD overlap syndrome (ACOS)

Abstract

Asthma and chronic obstructive pulmonary disease (COPD) are

the two most prevalent obstructive diseases of the lung. Although

asthma and COPD differ in many ways some properties of each

disease co-exist in some patients, particularly in patients with

advanced age which recently brought up the term; Asthma-COPD

Overlap Syndrome (ACOS). In addition to the fact that clinical

trials deliberately exclude the patients in this group, the diagnostic

criteria of ACOS are not well established. Both of these factors

contribute to paucity of evidence based clinical information about

ACOS. In this article my aim is to provide brief information about

the history, description, clinical properties and treatment of this

disease.

Keywords

• ACOS,COPD,Asthma,Guideline