Changes in dynamic lung mechanics after lung volume reduction coil treatment of severe emphysema

Author:

Makris Demosthenes,Leroy Sylvie,Pradelli Johana,Benzaquen Jonathan,Guenard Hervé,Perotin Jeanne-MarieORCID,Zakynthinos Spyros,Zakynthinos Epaminondas,Deslee Gaëtan,Marquette Charles Hugo

Abstract

We assessed the relationships between changes in lung compliance, lung volumes and dynamic hyperinflation in patients with emphysema who underwent bronchoscopic treatment with nitinol coils (coil treatment) (n=11) or received usual care (UC) (n=11). Compared with UC, coil treatment resulted in decreased dynamic lung compliance (CLdyn) (p=0.03) and increased endurance time (p=0.010). The change in CLdyn was associated with significant improvement in FEV1 and FVC, with reduction in residual volume and intrinsic positive end-expiratory pressure, and with increased inspiratory capacity at rest/and at exercise. The increase in end-expiratory lung volume (EELV) during exercise (EELVdyn-ch=EELVisotime EELVrest) demonstrated significant attenuation after coil treatment (p=0.02).

Publisher

BMJ

Subject

Pulmonary and Respiratory Medicine

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