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Should we Measure Arterial Stiffness in Hypertensive Women
This article was originally published by Thieme Medical and Scientific Publishers Pvt. Ltd. and was migrated to Scientific Scholar after the change of Publisher; therefore Scientific Scholar has no control over the quality or content of this article.
Introduction
Hypertension is identified as the world's leading risk factor for cardiovascular morbidity and mortality1 Hypertension is widely seen in men; however, compared with younger women, it is more prevalent among women than in older men.2 Hypertension is associated with decreased arterial distensibility or increased arterial stiffness. This is partly attributed to high-pressure blood flow, which stretches the vessel wall, inducing endothelial dysfunction. Nitric oxide (NO) released from healthy endothelium is responsible for maintaining resting distensibility.3 Age, obesity, acute and chronic smoking, diabetes, hypertension, end-stage renal disease and hypercholesterolemia, labeled as the potential cardiovascular disease risk factors, often remain the same for arterial stiffness.4 As blood passes through these rigid arteries, higher amplitude pressure waves are produced during forward motion, and these waves return early as reflective waves, causing vasculature damage to heavily perfused organs such as myocardium, kidney, and brain.
Pulse wave velocity (PWV) is the forward pressure wave speed and an arterial stiffness marker. PWV can be obtained from carotid and femoral waveforms5 or brachial tibial waveforms.6 7 Studies have shown that cardiovascular predictions and all-cause death can be made even in noncardiovascular subjects based on carotid femoral (Cf) PWV values.8 9 Arterial stiffness risk can be classified as normal, mild, moderate, and severe, based on the normal values which ranges from 5 to > 15 m/s.10 11 12 13 In 200714 ESH/ESC specified the threshold value of Cf-PWV as 12 m/s. Systemic studies focusing on these guidelines have shown that a 1 m/s increase in Cf-PWV is related to 10% cardiovascular accident risk.15
In a study, Diabetes Risk Profiler, a noninvasive blood pressure curve device, was used to evaluate PWV in women with hypertension. Increase in PWV was found to correlate with elevated blood pressure.16 17 Patients have significantly higher blood pressure and PWV compared with the controls. The variations in PWV values across varying degrees of hypertension, however, were not significant. That is due to the fact that most of patients were using vasodilators. Duration of antihypertensive use, location of PWV assessment, blood pressure, heart rate smoking, alcohol, and salty diet intake prior to PWV measurement should be considered as confounding factors when assessing differences in PWV values across these groups.
Hypertension, a major cardiovascular disease risk factor, can contribute to increased oxidative stress, microvascular inflammation, and endothelial damage. During hypertension, elastic fibers become compromised and damaged, resulting in decreased arterial wall stiffness.18 Hypertension duration is substantially correlated with artery stiffening due to excessive oxidative load and prolonged strain, resulting in gradual vascular remodeling and loss of artery elasticity.
In women under 60 years of age, PWV is smaller than in males, but values increase sharply after menopause.19 In postmenopausal women, endogenous vasodilatory estrogen20 depletion leads to increased arterial rigidity.21 Increased arterial stiffness in women results in poor hypertension control, weaker diastolic activity, impaired cardiac-arterial coupling, and left ventricular remodeling, all related to adverse cardiovascular effects.22
Interventions should aim to alter modifiable risk factors and prevent early development of increased arterial rigidity. Aerobic exercise,23 intake of moderate alcohol,24 and diet rich in flavonoids25 and low in salt26 have been shown to enhance artery compliance despite decreased blood pressure. By lowering blood pressure, vasodilators such as nitroglycerin,27 drugs that inhibit renin angiotensin,28 29 30 31 and calcium channel blockers32 have shown increased compliance. Among vasodilators, drugs inhibiting renin-angiotensin-aldosterone pathways tend to have superior effect than others in decreasing arterial stiffness.33 Statins,34 by restoring endothelial functionality, demonstrated positive impact on arterial stiffness. Nebivolol, a NO donor β-blocker, has shown to reduce PWV independent of blood pressure and heart rate-lowering effects.35 By its anti-inflammatory effect, endothelin-A antagonists36 and acetylsalicylic acid (aspirin) improved arterial stiffness. Blood glucose-lowering drugs like glitazones and metformin37 38 have shown improved arterial rigidity through multiple mechanisms. A research found that hormone therapy (HT) administration reversed arterial stiffness,39 but exacerbated after HT discontinuation.40
Conclusion
Hypertensive women experience higher pulse pressure and stiffness. In diagnosing early cardiovascular disease in hypertension, evaluation of arterial stiffness, in addition to blood pressure, is essential. Treatments to alter cardiovascular risk factors, lower blood pressure, and enhance endothelial reflection may be useful in preventing further vascular disease progression in hypertension.
Conflicts of Interest
None declared.
References
- Kardiol Pol. 2019;77(02):71-159.[2018 ESC/ESH Guidelines for the management of arterial hypertension]
- [Google Scholar]
- Circulation. 2014;129(03):399-410.American Heart Association Statistics Committee and Stroke Statistics Subcommittee. Executive summary: heart disease and stroke statistics–2014 update: a report from the American Heart Association.
- [Google Scholar]
- Hypertension. 2001;38(05):1049-1053.Endothelium-derived nitric oxide regulates arterial elasticity in human arteries in vivo.
- [Google Scholar]
- Circulation. 2007;115(20):2628-2636.Cross-sectional correlates of increased aortic stiffness in the community: the Framingham Heart Study.
- [Google Scholar]
- Hypertension. 2015;66(03):698-722.American Heart Association Council on Hypertension. Recommendations for improving and standardizing vascular research on arterial stiffness: a scientific statement from the American Heart Association.
- [Google Scholar]
- Curr Hypertens Rev. 2014;10(01):49-57.Brachial-ankle pulse wave velocity in the measurement of arterial stiffness: recent evidence and clinical applications.
- [Google Scholar]
- Can J Cardiol. 2014;30(07):756-764.Arterial stiffness and its clinical implications in women.
- [Google Scholar]
- J Am Coll Cardiol. 2014;63(07):636-646.Aortic pulse wave velocity improves cardiovascular event prediction: an individual participant meta-analysis of prospective observational data from 17,635 subjects.
- [Google Scholar]
- J Am Coll Cardiol. 2010;55(13):1318-27.Prediction of cardiovascular events and all-cause mortality with arterial stiffness: a systematic review and meta-analysis.
- [Google Scholar]
- Hypertension. 1995;26(03):503-508.Noninvasive pulse wave analysis for the early detection of vascular disease.
- [Google Scholar]
- Hypertension. 2002;39(01):10-15.Aortic stiffness is an independent predictor of primary coronary events in hypertensive patients: a longitudinal study.
- [Google Scholar]
- J Am Soc Hypertens. 2012;6(06):436-438.Molecular mechanisms of arterial stiffness: new insights.
- [Google Scholar]
- Circulation. 2006;113(05):664-670.Prognostic value of aortic pulse wave velocity as index of arterial stiffness in the general population.
- [Google Scholar]
- Eur Heart J. 2007;28(12):1462-1536.2007 Guidelines for the management of arterial hypertension: The Task Force for the Management of Arterial Hypertension of the European Society of Hypertension (ESH) and of the European Society of Cardiology (ESC)
- [Google Scholar]
- J Am Coll Cardiol. 2010;55(13):1318-1327.Prediction of cardiovascular events and all-cause mortality with arterial stiffness: a systematic review and meta-analysis.
- [Google Scholar]
- Ind J Car Dis Wom. 2020;2:87-170.Arterial stiffness as a measure of vascular dysfunction in hypertensive women.
- [Google Scholar]
- Hypertens Res. 2003;26(11):871-874.The relationship between pulse wave velocity and pulse pressure in Chinese patients with essential hypertension.
- [Google Scholar]
- J Pathol. 2007;211(02):157-172.Ageing of the conduit arteries.
- [Google Scholar]
- J Hypertens. 2001;19(12):2197-2203.Gender differences in the timing of arterial wave reflection beyond differences in body height.
- [Google Scholar]
- J Steroid Biochem Mol Biol. 2005;93:263-268. (2-5)Estrogen actions and in situ synthesis in human vascular smooth muscle cells and their correlation with atherosclerosis.
- [Google Scholar]
- Rijeka: InTec; 2012. p. :1-30. In: ed.Sex hormones and vascular function.Sex Hormones.
- [Google Scholar]
- Hypertension. 2004;43(06):1239-1245.Changes in arterial stiffness and wave reflection with advancing age in healthy men and women: the Framingham Heart Study.
- [Google Scholar]
- Hypertension. 2003;41(01):130-135.Greater age-related reductions in central arterial compliance in resistance-trained men.
- [Google Scholar]
- Arterioscler Thromb Vasc Biol. 2004;24(02):342-348.Alcohol consumption in relation to aortic stiffness and aortic wave reflections: a cross-sectional study in healthy postmenopausal women.
- [Google Scholar]
- Arterioscler Thromb Vasc Biol. 2003;23(06):1066-1071.Isoflavones reduce arterial stiffness: a placebo-controlled study in men and postmenopausal women.
- [Google Scholar]
- Hypertension. 2009;54(02):203-209.Sodium intake and vascular stiffness in hypertension.
- [Google Scholar]
- Am J Cardiovasc Drugs. 2012;12(03):143-156.Role of antihypertensive drugs in arterial ‘de-stiffening’ and central pulsatile hemodynamics.
- [Google Scholar]
- Atherosclerosis. 2012;221(01):18-33.Angiotensin converting enzyme inhibitors effect on arterial stiffness and wave reflections: a meta-analysis and meta-regression of randomised controlled trials.
- [Google Scholar]
- J Hum Hypertens. 2000;14(09):541-546.Favourable effects on arterial wave reflection and pulse pressure amplification of adding angiotensin II receptor blockade in resistant hypertension.
- [Google Scholar]
- PLoS One. 2012;7(07):e41757.Beneficial effects on arterial stiffness and pulse-wave reflection of combined enalapril and candesartan in chronic kidney disease–a randomized trial.
- [Google Scholar]
- Hypertension. 2005;46(05):1111-1117.Changes in aortic stiffness and augmentation index after acute converting enzyme or vasopeptidase inhibition.
- [Google Scholar]
- Circulation. 2006;113(09):1213-1225.CAFE Investigators; Anglo-Scandinavian Cardiac Outcomes Trial Investigators; CAFE Steering Committee and Writing Committee. Differential impact of blood pressure-lowering drugs on central aortic pressure and clinical outcomes: principal results of the Conduit Artery Function Evaluation (CAFE) study.
- [Google Scholar]
- J Thorac Dis. 2016;8(07):1386-1387.Antihypertensive agents and arterial stiffness.
- [Google Scholar]
- Pharmacol Res. 2014;88:12-19.Cardiovascular effects of statins, beyond lipid-lowering properties.
- [Google Scholar]
- Vasc Health Risk Manag. 2009;5(01):353-360.Arterial stiffness, hypertension, and rational use of nebivolol.
- [Google Scholar]
- Clin Exp Hypertens. 2013;35(08):589-594.Evaluation of the relationship between arterial blood pressure, aortic stiffness and serum endothelin-1 levels in patients with essential hypertension.
- [Google Scholar]
- J Clin Endocrinol Metab. 2010;95(02):722-730.Metformin reduces arterial stiffness and improves endothelial function in young women with polycystic ovary syndrome: a randomized, placebo-controlled, crossover trial.
- [Google Scholar]
- Clin Endocrinol (Oxf). 2012;77(06):885-892.The effects of treatment with drospirenone/ethinyl oestradiol alone or in combination with metformin on elastic properties of aorta in women with polycystic ovary syndrome.
- [Google Scholar]
- J Hum Hypertens. 2002;16(07):509-516.The effect of hormone replacement therapy on arterial blood pressure and vascular compliance in postmenopausal women with arterial hypertension.
- [Google Scholar]
- J Hypertens. 1999;17(03):413-418.Withdrawal of hormonal therapy for 4 weeks decreases arterial compliance in postmenopausal women.
- [Google Scholar]