Treatment of hemorrhoids is divided by the cause of symptoms, into internal and external treatments. Accurately classifying a patient's symptoms and the relation of the symptoms to internal and external hemorrhoids is important.
Note also that the average life expectancy after being diagnosed with Parkinson's is about 9 years -- hence, those who participated were already at this point at the beginning of the study.
The goal of medical management of Parkinson's disease is to control signs and symptoms as long as possible, while minimizing side effects. Medications usually provide good control for 4 to 6 years. After this time period, disability usually progresses despite medical management, and many people develop long-term motor complications including fluctuations and an inability to control their muscles called dyskinesia.