[Dyspnea and lung function. Results of a multicenter study].

Unlabelled: In seven pneumological centres 266 patients with different pneumological diseases were investigated. After having clarified several questions regarding the severity of the dyspnoea, cough intensity and the volume of sputum, as well as basic clinical investigation and after an x-ray of the thorax, the diagnosis was arrived at. Subsequently the lung function investigation with the flow-volume curve (including IVC, FVC, PEF, FEV1, MEF50%) and the body plethysmographic Rt and IGV were carried out.

[Definition and clinical significance of oscillation parameters (fixed frequency technic)].

Starting from the polyvalent sense of a limitation of the maximum available respiratory flow there is to be pointed to the necessity of the decentralized measurement of resistance. The instrument IfM E1 permits the use of the simple forced oscillation technique for estimations of ROS and the derived values delta ROS and STAV all over the country. The advanced forced oscillation method, based on the fixed frequency technique, contained the option for estimation of the residual volume and especially the phase-angle.