Excessive high pressure alone may be simple systolic hypertension.
Simple systolic hypertension is defined as a systolic blood pressure greater than or equal to 140 mmHg and a diastolic blood pressure less than 90 mmHg. It is also known as senile simple systolic hypertension because it is common in people over 60 years of age.
Common causes of simple systolic hypertension include decreased arterial elasticity, aortic valve insufficiency, ductus arteriosus, hyperthyroidism and anemia.
1. Decrease in arterial elasticity: mostly seen in the elderly, degenerative changes in the arterial muscular layer lead to decrease in arterial elasticity and decrease in the buffering capacity of blood pressure, resulting in high systolic blood pressure and increase in pulse pressure difference.
2. Incomplete closure of the aortic valve with ductus arteriosus: blood is rapidly ejected into the arteries during ventricular contraction, increasing systolic blood pressure, while during ventricular diastole, blood in the arteries is shunted from the incomplete closure of the aortic valve and the ductus arteriosus to the left ventricle and the pulmonary artery, resulting in a relative decrease in diastolic blood pressure.
3. Hyperthyroidism and anemia: it will lead to an increase in blood volume. When the heart contracts, a large amount of blood collects in the arteries, causing an increase in systolic blood pressure, while when the heart diastoles, a large amount of blood enters the volume vessels, and the diastolic blood pressure is relatively lowered.
When simple systolic hypertension is found, it is necessary to go to the hospital in a timely manner, and conduct a comprehensive examination, and carry out regular treatment in a timely manner after a clear diagnosis, so as not to delay the condition.