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Area of Science:

  • Pulmonology
  • Respiratory Medicine

Background:

  • Asthma and COPD are traditionally distinct respiratory diseases.
  • Asthma COPD overlap syndrome (ACOS) describes patients with features of both conditions.
  • ACOS represents a significant portion of obstructive lung disease patients with a high healthcare burden.

Purpose of the Study:

  • To highlight the clinical significance of ACOS.
  • To discuss the implications of identifying ACOS for patient management.
  • To emphasize the need for further research and evidence-based guidelines for ACOS.

Main Methods:

  • Review of recent publications defining ACOS.
  • Analysis of clinical features, radiographic findings, and diagnostic tests for ACOS.
  • Discussion of therapeutic implications and management strategies.

Main Results:

  • No universal definition criteria for ACOS currently exist.
  • ACOS patients have a substantial impact on healthcare resources.
  • Identifying ACOS is vital for appropriate treatment, including early inhaled corticosteroid use.

Conclusions:

  • ACOS is a significant clinical entity requiring further investigation.
  • Current management strategies for ACOS are not evidence-based.
  • Future research should focus on understanding ACOS to develop optimal management guidelines.