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Cough intensity in the laryngectomee.
G E Murty1, M C Smith, P Lancaster
1ENT Department, Freeman Hospital, Newcastle upon Tyne, UK.
Clinical Otolaryngology and Allied Sciences
|February 1, 1991
Summary
The larynx is not essential for coughing, but its absence alters cough patterns. This study suggests a simple test may help assess laryngeal function through cough analysis.
Area of Science:
- Respiratory physiology
- Laryngeal function
- Pulmonology
Background:
- The precise role of the larynx in effective coughing remains unclear.
- Understanding cough mechanics is crucial for respiratory health assessment.
Purpose of the Study:
- To compare cough intensity and patterns in individuals without a larynx (laryngectomees) versus those with a larynx.
- To determine if the larynx is essential for an efficient cough.
Main Methods:
- A comparative study involving 10 laryngectomees and 10 healthy individuals with a larynx.
- Measurement of cough intensity, peak expiratory flow, and time to reach peak flow.
Main Results:
- No significant difference was found in peak expiratory flow between the groups.
- Laryngectomees exhibited a prolonged time to reach peak flow.
- Supramaximal expiratory flow was absent in laryngectomees.
Conclusions:
- The larynx is not essential for the basic act of coughing.
- Coughing patterns differ in individuals without a larynx, potentially indicating reduced efficiency.
- A simple cough test may offer diagnostic value for assessing laryngeal status.