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Hypertension in the Elderly: Pathophysiology and Clinical Significance

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Hypertension and Cardiovascular Disease in Asia

Part of the book series: Updates in Hypertension and Cardiovascular Protection ((UHCP))

Abstract

The population in Asia has been rising since 2000 and is estimated to reach 932 million in 2050, making Asia the most populous elderly region in the world. The prevalence of hypertension is high even in Asia and it rises with age. In tandem with the aging population, Asia will have the largest population with hypertension in the world by the middle of this century.

While several of the mechanisms and pathophysiology responsible for the causation of hypertension are similar to younger adults, many differences also occur. The elderly have more arterial stiffness leading to a greater elevation of systolic blood pressure (BP) than the diastolic BP, resulting in a higher prevalence of isolated systolic hypertension which is more difficult to treat. The elderly is also more salt-sensitive and herein opportunities and evidence exist that lowering salt intake can lower BP. Evidence has also emerged that the white coat effect and masked hypertension are more common in the elderly and should be identified as they are associated with increased cardiovascular (CV) risk.

Hypertension in the elderly needs to be treated as reducing BP reduces CV mortality and morbidity. However, because the elderly is a more vulnerable group, usually having many other co-morbid conditions, including functional and cognitive impairments. Treatment may increase the occurrence of postural hypotension potentially leading to falls; thus, any treatment for the elderly has to be individualized. Target BP control for the elderly has to balance the benefits and adverse effects of anti-hypertensive therapy.

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Chia, YC. (2022). Hypertension in the Elderly: Pathophysiology and Clinical Significance. In: Ram, C.V.S., Teo, B.W.J., Wander, G.S. (eds) Hypertension and Cardiovascular Disease in Asia. Updates in Hypertension and Cardiovascular Protection. Springer, Cham. https://doi.org/10.1007/978-3-030-95734-6_17

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