What are the symptoms of Parkinsons disease?

The most common motor symptoms of Parkinson’s disease include slowness (bradykinesia), trouble turning over in bed, difficulty rising from a seated position (especially after sitting for an extended period), shuffling steps, difficulty with fine motor skills (e.g. buttons, zippers), and difficulty with balance. Small handwriting and trouble typing can be one of the earliest symptoms. Late stage motor symptoms include freezing and frequent falls.

Nonmotor symptoms tend to preceded motor symptoms by more than a decade. Early symptoms tend to include loss of smell (hyposmia), anxiety, disrupted sleep/ frequent waking/ insomnia, apathy (lack of motivation), loss of pleasure/ depression, fatigue, muscle pain, orthostatic hypotension (low blood pressure/ dizzy on standing), poor balance, falls, temperature dysregulation, visual disturbances, frequent nighttime urination (nocturia), REM sleep behavior disorder (RBD)/ acting out your dreams at night/ kicking or yelling in your sleep, vivid dreams, restless legs syndrome (RLS), myalgia (muscle pain or aching), muscle cramping (dystonia), slurred or soft speech/ quiet voice, stopped/ hunched posture, and drooling. Sexual impairment can include loss of libido, erectile dysfunction, and trouble with organsm. Urinary symptoms can include urinary urgency, incontinence, or frequent nighttime urination (nocturia). This information is provided in an attempt to answer the commonly asked question of "What are the symptoms of Parkinson’s disease?"

While the cognitive decline of PD is very different from the dementia seen in Alzheimers, there are still memory and concentration problems that patients must contend with. In PD, people will often have difficulty with executive function, things that require following steps to complete a task. There can be issues with comprehension and confusion, all of which can be make worse with anxiety and poor sleep.

How is Parkinson's disease severity assessed?

What are the symptoms of Parkinsons disease

There are a number of rating scales used to assess PD symptoms and severity and each scale has strengths and weaknesses. The most well-established scale, the Hoehn and Yahr (HY), only goes from a 1-5, so it is slow to change and isn’t very helpful for determining if a therapy is working. The Unified Parkinson’s Disease Rating Scale (UPDRS) and the recently-updated MDS-UPDRS, are the outcome measures used most commonly in the research setting. These scales tend to work exceptionally well for measuring motor symptoms and improvement, but many nonmotor symptoms are inadequately captured.

In response to the inadequacies of the HY and the UPDRS, several patient-centered scales have been developed that do a better job capturing the nonmotor aspects of PD. The Non-Motor Symptom Scale (NMSS) and the Patient-Reported Outcomes in PD (PRO-PD) scale have been designed to meet some of the unmet needs in PD assessment.

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