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Query: UMLS:C0011849 (diabetes)
 277,896 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Orthostatic hypertension (OHT) is a clinically important problem increasingly recognized in persons with borderline hypertension, diabetes mellitus, and autonomic neuropathies, and in the elderly. Moreover, the association of OHT with progression of target end-organ damage, especially coronary heart disease and chronic kidney disease (CKD), and the attendant increased cardiovascular disease (CVD) and CKD risk, is gaining attention but is still underappreciated. There are various mechanisms that contribute to the development of OHT: excessive vascular adrenergic sensitivity, baroreceptor reflex abnormalities, and inappropriate activation of the renin-angiotensin-aldosterone system, which are also mechanisms that lead to cardiorenal metabolic disease (CRS). While the evidence is compelling for the clinical importance of OHT, more investigation is needed to evaluate the effects of OHT on CKD and CVD. The notion that the development of OHT is a risk factor for the development of CRS raises the need for further clinical and investigational attention to this clinical dilemma.
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PMID:An Emerging Role for Understanding Orthostatic Hyp'er'tension in the Cardiorenal Syndrome. 2225 98

Current data on hypertension in the Kingdom of Saudi Arabia are lacking. We conducted a national survey to inform decision-makers on the current magnitude of the epidemic. We measured systolic and diastolic blood pressure of 10,735 Saudis aged 15 years or older and interviewed them through a national multistage survey. We used multivariate logistic regressions to describe sociodemographic characteristics and risk factors of hypertensive, borderline hypertensive, and undiagnosed hypertensive Saudis. We found that 15.2% and 40.6% of Saudis were hypertensive or borderline hypertensive, respectively. Risk of hypertension increased among men, with age, obesity, diabetes, and hypercholesterolemia. 57.8% of hypertensive Saudis were undiagnosed. These were more likely to be male, older, and diagnosed with diabetes. Among participants diagnosed with hypertension, 78.9% reported taking medication for their condition. About 45% of participants on medication for hypertension had their blood pressure controlled. The prevalence of hypertension and borderline hypertension is very high in Saudi Arabia. Moreover, control of hypertension is poor. With the majority of hypertensive Saudis being unaware of their condition, a national plan is needed to increase utilization of freely available screening, preventive, and medical services.
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PMID:Hypertension and its associated risk factors in the kingdom of saudi arabia, 2013: a national survey. 2517 Apr 23

It is becoming increasingly clear that both microvascular network alterations and subsequent tissue perfusion defects may precede and predict the development of arterial hypertension and other cardiovascular and metabolic diseases, including diabetes and metabolic syndrome. Moreover, the subsequent functional and structural alterations in microvascular reactivity and density, as well as alterations in the macrocirculation characteristic of physiologic vascular aging, contribute to the development of target organ damage. Microvascular rarefaction appears to be an early vascular structural alteration in the setting of hypertension, as it is already present in individuals presenting with borderline hypertension and normotensive young adults with a familial predisposition to high blood pressure. The chronic increases in blood pressure that occur during senescence secondary to macrocirculatory changes induce vasoconstriction within the microcirculation, which promotes the development of tissue hypoxia and reduces both arteriolar and capillary density. This phenomenon contributes to additional increases in peripheral vascular resistance and establishes a vicious cycle that culminates in both tissue injury and target organ damage, which are equally present in senescence and hypertension. Therefore, the microcirculation may be considered an essential target for both the pharmacological and non-pharmacological treatment of arterial hypertension and other cardiovascular diseases.
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PMID:Early Functional and Structural Microvascular Changes in Hypertension Related to Aging. 2841 15


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