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Fig. 1 | Allergy, Asthma & Clinical Immunology

Fig. 1

From: Improvement of exertional dyspnea and breathing pattern of inspiration to expiration after bronchial thermoplasty

Fig. 1

Changes in the resting respiratory system resistance on the flow-volume curve at pre-BT and at 1 year after BT. The forced oscillation technique was used. Pre-BT, a semicircular flow-volume curve was detected in the expiratory phase (white zone), with the nadir (closed arrow) detected in the middle of the phase. At 1 year after BT, the flow-volume curve was changed to a triangular shape, with the nadir (open arrow) detected in the early expiratory phase. The gray zone represents the inspiratory phase. BT bronchial thermoplasty

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Allergy, Asthma & Clinical Immunology

ISSN: 1710-1492

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