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. 2008 Aug 4:4:7.
doi: 10.1186/1745-9974-4-7.

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

Nicole M Ryan  1 , Peter G Gibson
Affiliations

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

Nicole M Ryan et al. Cough. .

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.

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Figures

Figure 1
Figure 1
Hypertonic saline provocation dose response curve for FIF50% prior to treatment (demonstrating extrathoracic airway hyperresponsiveness) and after treatment. Solid line = pre treatment. Dotted line = post treatment.
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