Can low blood pressure cause stroke?

I am 54 years old, have low blood pressure and often feel dizzy. Am I at risk of stroke, and what precautions should I take? Please advise, doctor. (Ngoc Suong, Vinh Long )

Reply:

Low blood pressure or unstable blood pressure still carries a risk of stroke. The risk is higher in people with co-existing atherosclerosis, which has pre-existing narrowing in the blood vessels, hindering blood flow to the brain. When low blood pressure occurs, the risk of ischemic stroke, also known as cerebral infarction, is high.

During cold weather, people with low blood pressure or unstable blood pressure are more prone to stroke. In cold weather, the body activates its ability to limit heat loss by releasing various hormones that constrict peripheral blood vessels. At the same time, the number of red blood cells and platelets in the blood often increases, making the blood thicker and more prone to clotting.

These factors worsen atherosclerosis, which can lead to blockages in the cerebral blood vessels. If blood pressure drops at this time, an ischemic stroke is even more likely to occur.

People with low blood pressure or unstable blood pressure should undergo screening to prevent stroke. During screening, doctors check the patient's overall health, combined with necessary imaging and testing methods to identify risk factors leading to stroke. Modern equipment and machinery help improve the effectiveness of screening, detecting even the smallest abnormalities throughout the body.

You can go to the hospital for stroke screening. Depending on your needs and health condition, such as blood pressure, cardiovascular health, and degree of atherosclerosis, the doctor will advise on a suitable screening package. From there, the doctor can suggest measures to prevent stroke.

In addition, everyone should remember to check their blood pressure regularly, maintain a healthy diet, and limit fat, alcohol, and tobacco. Increase your intake of fruits and vegetables, and natural nutrients such as those from blueberries and ginkgo biloba to improve blood flow to the brain. Maintain a balanced exercise and rest schedule.

Assoc. Prof. Dr. Nguyen Van Lieu
Director of the Neurology and Stroke Center
Tam Anh General Hospital Hanoi

Readers can ask questions about neurological disorders here for doctors to answer.

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