ABSTRACT
Parkinson's disease (PD) is a common, chronic neurological condition affecting just over 1 in 1000 people and increasing in incidence in older age groups.1 Early diagnosis is difficult, but is usually defined by the presence of at least two of the primary physical symptoms (tremor, rigidity, bradykinesia and postural instability), as well as a positive response to the drug levodopa. These primary symptoms can manifest themselves in many ways, including slowness, stiffness and the inability to initiate movement, a stooped posture, an impassive face and a shuffling gait. There may be difficulties with walking and balance, dress ing, speech and communication, loss of dexterity, or fatigue. As the disease progresses, the physical symptoms may affect other aspects of daily life and create additional psychological and social problems. Currently there is no cure for PD, although treatment can be very effective, at least in the early stages, in managing some of the symptoms, and in extending life expec tancy. However, in the long term the primary aim of any treatment must be to improve quality of life.
