Perception of wheezing in the elderly asthmatics

Area of Science:

• Pulmonology
• Geriatric Medicine
• Respiratory Medicine

Background:

• Underdiagnosis of asthma in the elderly is a significant clinical issue.
• Reduced symptom reporting in older adults may stem from diminished cognitive and physical activity.
• Wheezing, a key asthma symptom, is reported less frequently by elderly asthmatics, contributing to underdiagnosis.

Purpose of the Study:

• To investigate whether reduced wheezing complaints in elderly asthmatics are due to decreased wheezing development.
• To compare wheezing perception and occurrence across different age groups of asthmatic patients.

Main Methods:

• A study involving 194 stable asthmatic subjects divided into young (20-39), middle-aged (40-59), and elderly (60+) groups.
• Methacholine challenge tests were used to induce airway narrowing.
• Lung auscultation and questionnaires assessed wheezing presence and perception during the challenge.

Main Results:

• Wheezing developed in 87% of participants during methacholine challenge, with comparable frequency across age groups.
• No significant differences were observed in methacholine concentration, FEV1 fall, or FEV1 at wheezing onset among groups.
• The proportion of patients complaining of wheezing decreased significantly with age: 77% in young, 61.8% in middle-aged, and 40% in elderly groups.

Conclusions:

• Decreased perception of wheezing is the primary reason for lower complaint frequency in elderly asthmatics.
• This diminished perception contributes significantly to the underdiagnosis of asthma in older populations.
• Age-related changes in sensory perception may affect symptom reporting in chronic respiratory diseases.