Does Parkinson's Disease Impact Blood Pressure?

Commonly discussed symptoms of PD are often dominated by visible motor symptoms. But there are many symptoms that are not seen, but felt, by those living with PD. Changes in Blood Pressure is one of these symptoms and is more commonly experienced after 5-10 years with the condition.

What causes these changes?

The relationship between Parkinson's Disease and blood pressure is multifactorial.

Changes stem from the disease itself, medications, or both. Significant blood pressure changes are uncommon in the first five years when medication doses remain relatively low.

As medication doses increase over 5-15 years post-diagnosis to control motor symptoms, blood pressure can drop because dopamine replacement therapies dilate blood vessels. The brain's ability to auto-regulate blood pressure also diminishes, typically 10-20 years after diagnosis.

These combined factors can lead to orthostatic hypotension - when the nervous system can't adjust blood pressure quickly enough during position changes, especially when standing up.

Symptoms include:

·       Dizziness or light-headedness

·       Blurred vision

·       Fatigue

·       Fainting (severe cases)

These symptoms can interfere with everyday activities such as standing up quickly from a chair or exercising.

When symptoms worsen:

·       Early morning

·       Hot weather

·       After large meals

·       Following alcohol consumption

·       During or after urination or bowel movements

Management strategies: It is important to work with your healthcare team for potential medication adjustments or alternative treatments. Deep Brain Stimulation (DBS) may help  given its association with reduction of required medication.

Self-care tips:

·       Stay well-hydrated throughout the day

·       Move slowly when changing positions, waiting 10-20 seconds after standing

·       Avoid prolonged stillness or extended periods in one position (except when sleeping)

*Always discuss specific symptoms with your healthcare provider for personalized management.

Staying hydrated may help in the management of low blood pressure

Additional Resources

For further information on orthostatic hypotension in Parkinson's disease, refer to the International Parkinson's and Movement Disorder Society: https://www.movementdisorders.org/MDS/Resources/Patient-Education/Orthostatic-Hypotension-in-Parkinsons-Disease.htm