Harvard Health Letter

Ask the doctor: Treatment for high systolic pressure?

Anthony L. Komaroff, M.D.

Q. I'm 71 and my systolic pressure is usually in the 150s to 160s, which is high, but my diastolic is usually in the 80s, which is normal. Do I need treatment?

A. A blood pressure measurement includes two numbers: systolic pressure (the upper number) and diastolic pressure (the lower number). Your systolic pressure is high: 140 or over is high. And your lower number is not normal: normal diastolic pressure is below 80. However, even if your diastolic pressure were truly normal, say 70, you would still benefit from treatment. You would have a condition called isolated systolic hypertension (ISH). Many studies have shown that treatment of people with ISH lowers their risk of heart disease and stroke.

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