The origin of cough sounds.

摘要: We have analyzed the origin of first and second cough sounds recorded by tussiphonography. About 10,000 tussiphonograms were performed in about 1,000 healthy diseased subjects. Changes sound are due to pathological processes airways, for example, presence mucus or acute inflammatory disease. The may then become divided. In bronchial asthma is also abnormal because narrowed airways. becomes clear its absence patients after laryngectomy those with paralysis vocal folds. reappearance indicate rehabilitation With laryngotracheitis there a pattern multiple sounds. psychogenic origin, absent "bovine". Treatment bronchodilating drugs did not improve their spite improvement airway obstruction.