What Are the Causes of Isolated Systolic Hypertension?

Knowing the signs of hypertension, including isolated systolic hypertension, is important for everyone but becomes more important with age. The causes of isolated systolic hypertension can be subtle; however, the prognosis can be deadly if the condition is not properly treated.

Identification

• Blood pressure consists of two measurements: systolic and diastolic pressure. Systolic measurements read the pressure of the blood on the arteries when the heart contracts. Diastolic measurements read the pressure of the blood on the arteries when the heart is between contractions. Isolated systolic hypertension is when a patient has high systolic pressure while maintaining normal diastolic pressure.

Age

• An increase in systolic pressure can be seen in people with no previous conditions, suggesting that age is a primary factor. According to eMedTV, "About 65 percent of people with hypertension over age 60 have isolated systolic hypertension."

Atherosclerosis

• During aging, plaque can build up in arteries, leading to hardening. This condition contributes to isolated systolic hypertension as a result of the lack of elasticity in arteries.

Aldosterone

• Aldosterone, a hormone in the body that measures salt and water balance, can play a key role. Any abnormal readings in aldosterone concentrations can cause higher sodium levels, resulting in isolated systolic hypertension.

Various Factors

• Smoking, diabetes and obesity are strong contributors to high blood pressure and isolated systolic hypertension.