Extrathoracic airway hyperresponsiveness as a mechanism of post infectious cough: case report

doi:10.1186/1745-9974-4-7

Cough

Volume 4

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Case report

Extrathoracic airway hyperresponsiveness as a mechanism of post infectious cough: case report

Nicole M Ryan¹^,2 and Peter G Gibson¹^,2

¹School of Medicine and Public Health, The University of Newcastle, Callaghan, NSW 2308, Australia

²Hunter Medical Research Institute, Department of Respiratory and Sleep Medicine, John Hunter Hospital, Locked Bag 1, Hunter Region Mail Centre, NSW, 2310, Australia

author email corresponding author email

Cough 2008, 4:7doi:10.1186/1745-9974-4-7


Published:	4 August 2008

Abstract

Post-infectious cough is a common diagnosis in people with chronic cough. However, the specific infectious aetiology and cough mechanisms are seldom identified.

We report a case of chronic cough after Mycoplasma pneumoniae lower respiratory tract infection with extrathoracic airway hyperresponsiveness as the cough mechanism. Extrathoracic airway hyperresponsiveness may be a common mechanism in post-infectious cough which may be useful both diagnostically and therapeutically since chronic cough with extrathoracic airway hyperresponsiveness responds to speech pathology treatment.