What is the most important component of blood pressure: systolic, diastolic or pulse pressure?
PURPOSE OF REVIEW: Diastolic blood pressure has traditionally been considered the most important component of blood pressure and the primary target of antihypertensive therapy. However, over 30 years ago important epidemiological studies pointed out the importance of systolic blood pressure, and research during the 1990s has strengthened this view. Unlike diastolic blood pressure, systolic blood pressure increases progressively with age, and in the ageing societies elevated systolic pressure is the most common form of hypertension. The characteristic changes of systolic and diastolic blood pressure with age lead to increases in pulse pressure (systolic minus diastolic), which has emerged as a new, potentially independent risk factor. In this review we compare the relative importance of various blood pressure components. RECENT FINDINGS: Generally, in studies in which readings of systolic and diastolic blood pressure have been compared, systolic blood pressure has been a better predicto
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