Cough Reflex in Elderly Patients with Aspiration Pneumonia
Author Information
Author(s): Yamanda Shinsuke, Ebihara Satoru, Ebihara Takae, Yamasaki Miyako, Asamura Takaaki, Asada Masanori, Une Kaori, Arai Hiroyuki
Primary Institution: Tohoku University
Hypothesis
The study evaluates the involvement of the supramedullary system in the down-regulation of cough reflex in patients with aspiration pneumonia.
Conclusion
The study suggests the involvement of supramedullary dysfunction in the etiology of aspiration pneumonia in the elderly.
Supporting Evidence
- Patients with aspiration pneumonia showed significantly higher cough reflex thresholds compared to controls.
- The urge-to-cough scores were significantly lower in patients with aspiration pneumonia at certain concentrations of citric acid.
- The study highlights the role of supramedullary dysfunction in cough reflex impairment.
Takeaway
Elderly patients with aspiration pneumonia have a weaker urge to cough, which may lead to more serious health problems.
Methodology
Cough reflex sensitivity and urge-to-cough were evaluated in patients with aspiration pneumonia and age-matched healthy controls using citric acid inhalation.
Potential Biases
Potential bias due to the small number of participants and exclusion of those with cognitive impairments.
Limitations
The small sample size and preliminary nature of the study limit the generalizability of the findings.
Participant Demographics
8 patients with aspiration pneumonia (ages 70-88) and 11 age-matched healthy controls (ages 72-84).
Statistical Information
P-Value
<0.05
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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