Asthma-COPD overlap syndrome (ACOS): A diagnostic challenge

The asthma - COPD overlap syndrome ( ACOS ) : hype or reality ?

Asthma and chronic obstructive pulmonary disease (COPD) are chronic diseases with high prevalence in the general population. Asthma affects 25 million Americans (18 million adults and 7 million children) (1), while about 14.2 million Americans are diagnosed with COPD and 9.8 million are estimated to have COPD that is undiagnosed (2, 3). A variable degree of airway inflammation, airway obstructi...

The Asthma COPD Overlap Syndrome: ACOS Epidemiology and Historical Perspective

Asthma and COPD Overlap Syndrome (ACOS): A Systematic Review and Meta Analysis

BACKGROUND The combination of asthma and chronic obstructive pulmonary disease (COPD), or ACOS is a recently defined syndrome. The epidemiology of the condition is poorly described and previous research has suggested ACOS is associated with worse outcomes than either condition alone. We therefore decided to complete a systematic review of the published literature. METHODS This review was cond...

The Asthma-COPD Overlap Syndrome.

Although in textbooks asthma and chronic obstructive pulmonary disease (COPD) are viewed as distinct disorders, there is increasing awareness that many patients have features of both. This article reviews the asthma-COPD overlap syndrome.

The Asthma-COPD Overlap Syndrome

Asthma and Chronic Obstructive Pulmonary Disease (COPD) are pulmonary disorders characterized by various degrees of airflow limitation, inflammation and tissue remodeling. Bronchial asthma, an allergic disease that develops in childhood, is physiologically characterized by reversible airflow obstruction. It has an episodic course and a generally favorable prognosis, as it responds well to anti-...