Chronic 'cough hypersensitivity syndrome': a more precise label for chronic cough

Area of Science:

• Respiratory Medicine
• Clinical Pharmacology
• Symptomatology

Background:

• Chronic cough presents diagnostic and therapeutic challenges for clinicians.
• It significantly impairs quality of life and can be linked to psychological issues.
• Current diagnostic approaches for chronic cough are often insufficient, leading to ineffective treatments.

Purpose of the Study:

• To propose a new conceptual framework for understanding chronic cough.
• To introduce the term 'chronic cough hypersensitivity syndrome' to better describe the condition.
• To encourage research into cough sensitization mechanisms for improved antitussive therapies.

Main Methods:

• Review of current clinical understanding and diagnostic challenges of chronic cough.
• Analysis of the common association between chronic cough and hypersensitive cough reflex.
• Conceptualization of a new syndrome based on cough reflex hypersensitivity.

Main Results:

• Chronic cough is frequently associated with a hypersensitive cough reflex to various stimuli.
• Existing diagnostic categories for chronic cough do not fully capture this hypersensitivity.
• Idiopathic cough represents a significant portion of chronic cough cases without clear etiology.

Conclusions:

• A new label, 'chronic cough hypersensitivity syndrome,' is suggested to encompass the common hypersensitive cough response.
• This proposed syndrome would shift focus towards cough symptomatology and sensitization mechanisms.
• Adopting this new framework could lead to the development of more effective antitussive treatments.