A "saw-tooth" pattern in Parkinson's disease.
A patient with severe Parkinson's disease had a maximum inspiratory and expiratory flow-volume loop showing a "saw-tooth" pattern. It is concluded that this sign is not specific for the sleep apnea syndrome.
D000368:Aged; D006801:Humans; D008176:Lung Volume Measurements; D008297:Male; D010300:Parkinson Disease / Q000175:diagnosis* / Q000503:physiopathology; D012123:Pulmonary Ventilation