STAGES of PD--Hoenh and Yarh classification :
(I'm posting this to the list, as there have been several queries)
Stage 1= Mild one-sided tremor or rigidity--with or without slowness of
movement. May not need treatment.
Stage 2= Moderate tremor or rigidity on both sides,with bradykinesia. Symptoms
will be improved with amantadine,levadopa, or a dopamine agonist.
Stage 3= Significant tremor, rigidity, amd/or bradykinesia, accompanied by
mobility problems. Difficulties in postural control develop;there is
unsteadiness on turns, and hesitations, halts and freezes when start-
ing to walk. Patients begin to notice fluctuations in their level of
function during a day, and may experience dyskinesias. Major new prob-
lem is balance difficulty.
Stage 4= More severe disability, but still mobile and able to function inde-
pendently. Bradykinesia more severe.If fluctuations are present, they
will also be more severe.
Stage 5= Loss of ability to function independently. Postural defects severe,in-
dependent mobility impossible.
NOTE: Persons with severe mobility fluctuations may vary between stages 1 and 5
