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Explore the impact, symptoms, pathology, and therapeutic interventions for Parkinson's disease. Learn about motor control problems, secondary effects, participation roles, medical treatments, and goals for patients. Discover the essential role of physical therapy in managing Parkinson's disease progression and optimizing function.
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Progressive loss of function Impairment Activity Participation
Continuum of Therapeutic Interventions Compensation Recovery Learning (new) Re-learning Practice Practice
Pathology Progressive degenerative disorder, degeneration of pigmented neurons in the substantia nigra responsible for producing dopamine, by time of diagnosis loss, may be 60% loss of neurons History: slow progression – onset, unilateral symptoms, balance later, cognitive decline later First signs: lack of armswing (unilateral) slow to get going or to get things done (dressing, out of bed), hand-writing smaller Classic signs: tremor (pill-rolling) bradykinesia rigidity
What is the motor control problem? • Loss of automaticity, skilled movements • Loss of ability to activate such movements and continue sequence of movements • Akinesia, difficulty initiating movements • Freezing phenomena: doorway, microwave example • Postural instability – falls • Drooling, especially at night • Low volume, monotone voice • Masked face • Lack of automatic associated movements • Gait: forward head, stooped posture, diminished or absent armswing, lack DF on heel strike, lack full hip ext., flexed throughout • Cognitive changes: STM, dementia • Depression
Secondary effects/ Consequences over time : ACTIVITY Increased time to perform ADLs Difficulty turning in bed, getting out of bed Difficulty with hand dexterity for buttoning, holding cards, etc. Decreased overall activity Musculoskeletal changes: Loss of extension and rotation Posturing in flexion: Neck, trunk, hips, knees Decline in respiratory capacity Loss of balance Increased risk of falls
Secondary effects/ Consequences over time : PARTICIPATION ROLES: Provider Spouse - Partner Socially Parent Family member Recreationally Handle finances……….. Actor Attorney General
Medical Treatment: Drug Therapy: does not change rate or course of disease, but diminishes symptoms, allows movement Rx begins: when quality of life altered by bradykinesia or other problems Therapy is based on imbalance of transmitter activity
BALANCE Dopamine Cholinergic activity: acetylcholine IF excess: dyskinesia IF excess: rigidity IF Dopamine then, Cholinergic effect • Anticholinergics • Replace dopamine: given orally, used up peripherally, cannot cross • blood-brain barrier • Problem: Blood-brain barrier • Soln: Levodopa: Precursor to dopamine, Xs • Problem: Peripheral use Soln: Add Carbidopa: inhibits use of dopamine • peripherally, time to X BB barrier and be converted to dopamine • Sinemet = L-dopa and carbidopa • Problem: Enzyme: monamine oxidase breaks down dopamine in • brain reducing amount available • Soln: Add Eldepryl to Sinemet: inhibit enzyme, conserves dopamine • availability
Good news Changes symptoms Changing rate of disease progression? Bad News
Other medical/surgical options • Pallidotomy • Deep brain stimulation/implant • Transplants
GOALS What does person with PD want? Maintain optimal function (Teach strategies) Prevent complications of inactivity/immobilty Patient/Family/Caregiver education PDFoundation, Support Groups McGoon, Courage Behind the Mask Caregiver!