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They found that people who had low diastolic blood pressure 60 to 69 mm Hg were twice as likely to have subtle evidence of heart damage compared with people whose diastolic blood pressure was 80 to 89 mm Hg. Low diastolic values were also linked with a higher risk of heart disease and death from any cause over 21 years. For the second, published Oct. They determined that, compared with people who had systolic blood pressure of to mm Hg and diastolic pressure of 70 to 79, people with a systolic blood pressure of mm Hg or higher were more likely to experience heart attacks or strokes, to be hospitalized with heart failure, or to die within a five-year period.
But the same was true for heart attacks, heart failure, and death in people with low blood pressure systolic pressure below mm Hg and diastolic pressure under 70 mm Hg. In an analysis published online April 5, , by The Lancet , German researchers pooled data from two clinical trials involving 31, men and women ages 55 or older who had cardiovascular disease or advanced diabetes.
Participants were assigned to take either ramipril Altace , telmisartan Micardis, Activin , both drugs, or neither drug for about five years. The researchers determined that systolic pressures below mm Hg and diastolic pressures below 70 mm Hg were associated with an increased risk of dying from heart disease or any cause compared with systolic pressures between mm Hg and mm Hg and diastolic pressures between 70 and 80 mm Hg.
Diastolic pressures of less than 70 mm Hg were also associated with an increased risk of having a heart attack and hospital-ization for heart failure. The findings about low diastolic blood pressure are intriguing, and they make sense intuitively, Dr. Conlin says. Diastolic pressure is measured during the point in the heart cycle when blood flows into the coronary arteries that feed the heart. When those arteries are clogged with fatty deposits, blood pressure beyond the narrowed areas will drop as blood works its way through the narrowed channels.
As a result, part of the heart muscle may not get enough blood. Starved for oxygen and nutrients, the heart may become weak and prone to damage. If you have heart disease, you may want to check that your diastolic blood pressure doesn't fall too far below 70 mm Hg, which can happen when you try to reach a low systolic number. Going lower than that carries an increased risk of side effects and other adverse events.
Everyone is unique. Your medical history, current state of health, lifestyle, and willingness to take additional medication and accept certain risks all play a role in determining your blood pressure goal and how to achieve it. Talk to your doctor about the strategy that makes the most sense for you.
If it lasts long enough and it isn't treated, it may cause organs like your kidneys to start shutting down. Systolic hypotension can occur if the amount of blood in your body becomes too low. This can happen if you are severely dehydrated or you have major bleeding; there just isn't enough blood to push through the body. It also may happen if the heart muscle is too weak to push blood normally, as in cases of cardiomyopathy damaged heart muscle or if the arteries suddenly widen too much, as in vasovagal syncope a reflex that causes fainting.
Sometimes this low blood pressure happens when you change positions suddenly. You may feel dizzy when you stand up because gravity is pulling blood down toward your feet. This is a common condition called orthostatic hypotension. Your systolic blood pressure is the higher and first number in a blood pressure reading. If it's too high while you are at rest, you may need to have it treated. But pressure that's too low may be a serious problem too, so be sure to discuss your situation with your doctor.
The heart rests between beats so it can refill with blood. Doctors call this pause between beats "diastole. A normal diastolic blood pressure during quiet rest is 80 mmHg or a little below. If you have high blood pressure, the diastolic number is often higher even during quiet rest.
Low diastolic pressure may be seen with dehydration or with severe bleeding. It also may happen if the arteries relax and widen. Your systolic and diastolic pressures—the highest and lowest points of your heartbeat—change depending on your activity level, stress, fluid intake, and other factors.
This means that it is better to limit how these other factors change your pressure when taking a blood pressure reading. For the most accurate reading, it should be taken in a calm, warm space after you rest quietly for at least five minutes. You should be relaxed, with your arms at your sides, and the cuff should be placed on your arm at about the level of your heart. Your legs should be uncrossed, and your bladder should be empty—both of these can affect your reading. Many experts suggest recording blood pressures over an extended period of time, such as repeating measurements at home, before diagnosing high blood pressure.
Your blood pressure is a measurement of the pressures in your arteries while your heart is beating systolic and between beats diastolic.
These values are important in diagnosing and managing high blood pressure. They're also important numbers to know for treating a range of conditions, including heart disease or severe blood loss. It's important to get an accurate reading under calm, quiet conditions. Looking to start a diet to better manage your high blood pressure? Our nutrition guide can help.
Centers for Disease Control and Prevention. Measure your blood pressure. Updated November 30, Wide pulse pressure: A clinical review. J Clin Hypertens. National Institutes of Health. Orthostatic hypotension. Genetics Home Reference. The level of your blood pressure determines what kind of treatment you may need.
To get an accurate blood pressure measurement, your doctor should evaluate your readings based on the average of two or more blood pressure readings at three or more office visits. Here's a look at the four blood pressure categories and what they mean for you. If your systolic and diastolic readings fall into two different categories, your correct blood pressure category is the higher category. Talk to your child's doctor if you're concerned your child has high blood pressure.
If you also have heart disease, diabetes, chronic kidney disease or certain other conditions, you may need to treat your blood pressure more aggressively.
If your blood pressure is normal, maintaining or adopting a healthy lifestyle can prevent or delay the onset of high blood pressure or other health problems. If your blood pressure isn't normal, a healthy lifestyle — oftentimes along with medication — can help bring it under control and reduce your risk of life-threatening complications. There is a problem with information submitted for this request.
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Blood pressure chart: What your reading means. Products and services. Thank you for Subscribing Our Housecall e-newsletter will keep you up-to-date on the latest health information. Please try again. Something went wrong on our side, please try again. Show references Whelton PK, et al. In press. Accessed Dec.
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