[Non-motor symptoms of Parkinson disease and their management]

Non-motor symptoms of parkinson's disease and their management. Non-motor symptoms of Parkinson's disease are often the first manifestations of the disease before diagnosis is made. These symptoms are diverse: psychic manifestations such as anxiety, depression or behavioral disorders, dysautonomia, pain, alteration of smell or vision, and sleep disturbances. These symptoms can be dramatic and confounding such as those seen in nonmotor fluctuations. Altogether, non-motor symptoms contribute to the impairment of the quality of life of the patients. Therefore, they must be systematically analyzed, and, when possible corrected.