Source: Annual Congress 2002 - Assessment of lung function, telemonitoring and quality of life
Disease area: Airway diseases

Abstract

Purpose: We already reported about the reliability of our new respiratory cuff monitor in the 11th ERS Annual Congress. The correlation coefficients between chest and abdominal cuff pressure, and pulmonary function testing were significantly high in healthy subjects and patients with respiratory disease. We studied the disease specificity and reproducibility in our respiratory cuff monitor.
Methods: We analyzed chest and abdominal wave forms of cuff pressure and compared with the measurements of pulmonary function testing, respiratory muscle strength and chest expansion. Forty-six times were measured these parameters (twenty-five times in five patients with bronchial asthma, fourteen times in three patients with chronic emphysema and seven times in two patients with old tuberculosis).
Results: Rapid cuff pressure rising in FVC maneuver were recognized in asthma and emphysema patients (p<0.001). The efforts of breathing using pressure cuff were insensitive in all patients. Regardless of pulmonary disease, the change of cuff pressure in spirogram and resting ventilation were shown the same wave forms. The correlation coefficients between cuff pressure and respiratory muscle strength, chest expansion and FVC maneuver were in highly significant (0.417~0.589), however, weak interrelationship were shown between spirogram and respiratory muscle strength, chest expansion.
The reproducibility of respiratory cuff monitor in pulmonary patients had significantly reliability.
Conclusions: Our simple respiratory cuff monitor had no load and high reproducibility in pulmonary disease patients. It seemed that the rapid cuff pressure rising in FVC maneuver suggested bronchial obstruction.

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Citations should be made in the following way:
T. Miyagawa, N. Kihara, H. Goshima (Yokohama, Japan). Pulmonary disease specificity and reproducibility in our respiratory cuff monitor. Eur Respir J 2002; 20: Suppl. 38, 993

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