Reduce the pressure!
Intensive pressure reduction can save many lives
Julia Korowski, XX2 CENTURY, based on ScienceDaily: Lowering systolic blood pressure would save more than 100,000 lives per year, study finds
Reducing systolic blood pressure to 120 mmHg could save the lives of more than 100,000 residents of the United States – this is the conclusion of scientists at Loyola University Chicago (Loyola University Chicago). They presented their new study at a meeting of the Council on Hypertension of the American Heart Association.
To find out whether lowering systolic blood pressure (SAD) can save lives, scientists compared the results of a Clinical study of lowering systolic blood Pressure (Systolic Blood Pressure Intervention Trial, SPRINT) with data from the National Health and Nutrition Examination Survey (NHANES).
During SPRINT, scientists compared the risk of developing cardiovascular complications in patients with SAD below 120 and below 140 mmHg. The study involved more than 9,350 people suffering from hypertension, aged 50 years, excluding diabetics and those who had a stroke. During the SPRINT, patients in the standard treatment group (SAD < 140) took, on average, two different drugs, in the intensive blood pressure reduction group – three. The results showed that in patients who maintained systolic pressure at a level of up to 120 mmHg, compared with the standard treatment group, overall mortality decreased by 27%.
After analyzing data from the National Health and Nutrition Examination Program, scientists found that more than 18.1 million American adults meet the SPRINT criteria. The scientific team calculated that intensive reduction of SAD in these people could prevent about 107,500 deaths per year. However, the treatment would cause serious side effects in the form of new cases of abnormally low blood pressure (55,500), fainting (33,300) and electrolyte disturbances (44,400) annually. But most of them will not have long-term effects and will disappear after reducing the dose of drugs.
Arterial (blood) pressure is the pressure that blood exerts on the walls of blood vessels, one of the most important parameters characterizing the work of the circulatory system.
Systolic blood pressure (upper value), shows the pressure in the arteries at the moment when the heart contracts and pushes blood into the arteries, it depends on the strength of the contraction of the heart, the resistance exerted by the walls of blood vessels, and the number of contractions per unit of time.
Diastolic blood pressure (lower value) shows the pressure in the arteries at the moment of relaxation of the heart muscle. This is the minimum pressure in the arteries, it reflects the resistance of peripheral vessels.
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16.09.2016