Scientists from Imperial College London have found that people with unstable blood pressure may be at increased risk of heart attack and stroke. Research results published In European Heart Journal (EHJ).
Researchers followed more than 8,000 British people with high blood pressure for 20 years. They found that fluctuations in systolic pressure (the highest number on a blood pressure monitor that measures the pressure in the arteries as the heart contracts and pumps blood) become a risk factor for stroke, heart attack, and atrial fibrillation over time.
Study participants were divided into groups based on their mean systolic blood pressure and its variability (variability). Among volunteers with mean systolic blood pressure below 140 millimeters of mercury, those with the highest variability were found to have a 16% higher risk of heart attack, stroke, and other cardiovascular events compared with those with the lowest variability.
It is also stated that even pressure fluctuations within normal values are associated with an increased likelihood of developing these pathologies. Fluctuations in systolic blood pressure of 13 millimeters or more of mercury over five years can pose serious health risks, researchers say.
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Source: Gazeta
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