Adherence to Treatment, Arterial Stiffness and Cognitive Function in Irbesartan- Treated Newly Diagnosed Hypertensive

Rigas G Kalaitzidis1, Olga Balafa1, Evangelia Dounousi1

  • 1Hypertension Excellence Centre, Division of Nephrology, University Hospital of Ioannina, Ioannina, Greece.

Insights

Angiotensin II receptor blockers (ARBs) improved arterial stiffness and cognitive function in hypertensive patients. This study highlights ARBs

Area of Science:

  • Cardiovascular Medicine
  • Neuroscience
  • Pharmacology

Background:

  • Non-adherence to antihypertensive medications compromises blood pressure (BP) control.
  • Limited data exist on the relationship between adherence to antihypertensive agents and arterial stiffness (AS).
  • The causal link between arterial stiffness and cognitive dysfunction (CO/DY) remains unclear.

Purpose of the Study:

  • To investigate the effects of irbesartan monotherapy on arterial stiffness, cognitive function, and BP in hypertensive patients.
  • To assess the adherence rates to irbesartan monotherapy.

Main Methods:

  • Prospective follow-up of 77 hypertensive patients on irbesartan monotherapy for 16.1±10.9 months.
  • Assessment of cognitive function using the Mini-Mental State Examination (MMSE) and other tests.
  • Measurement of peripheral and central blood pressure, arterial stiffness indices (pulse wave velocity, augmentation index), and 24-hour urine albumin excretion.

Main Results:

  • Significant reductions in peripheral and central systolic and diastolic BP were observed.
  • Significant improvements in arterial stiffness indices, including carotid-femoral pulse wave velocity and augmentation index.
  • Significant improvement in MMSE scores and a reduction in 24-hour urine albumin excretion were noted.

Conclusions:

  • Monotherapy with an angiotensin II receptor blocker (ARB), irbesartan, effectively reduces arterial stiffness and improves cognitive function in hypertensive patients.
  • The study demonstrates significant reductions in BP and urinary albumin excretion.
  • High adherence rates were observed, suggesting ARBs may be well-tolerated.
Abstract

Related Concept Videos

Hypertension IV: Drug Therapy and Lifestyle Modifications01:28

Hypertension IV: Drug Therapy and Lifestyle Modifications

Multiple classes of antihypertensive medications are employed in treating hypertension. The most commonly recommended first-line treatments include:Thiazide Diuretics, such as chlorthalidone, increase sodium and water excretion from the body, reducing blood volume and blood pressure.Angiotensin-converting enzyme inhibitors, like lisinopril, block the conversion of angiotensin I to II, a potent vasoconstrictor lowering blood pressure.Angiotensin II Receptor Blockers (ARBs) prevent angiotensin II...
376
Hypertension III: Clinical Manifestations and Diagnostic Studies01:30

Hypertension III: Clinical Manifestations and Diagnostic Studies

Hypertension is asymptomatic and also referred to as the "silent killer" until it progresses to a severe stage or causes target organ disease. Patients may experience symptoms stemming from the strain on blood vessels and tissues in various organs or the heart's increased workload.Physical exams might show no abnormalities other than high blood pressure. Signs of vascular damage, when present, correspond to the organs supplied by the affected vessels, leading to target organ damage. For...
286
Atherosclerosis III: Management01:26

Atherosclerosis III: Management

Management of atherosclerosis involves an integrated strategy encompassing pharmacological treatment, surgical interventions, lifestyle changes, and nutrition therapy to address the multifactorial nature of the disease.Pharmacological TherapyA cornerstone of atherosclerosis management is the use of pharmacological agents. Statins, such as atorvastatin, are pivotal in inhibiting HMG-CoA reductase, an enzyme that catalyzes an initial step in cholesterol synthesis in the liver. This reduction in...
201
Heart Failure Drugs: Inhibitors of Renin-Angiotensin System01:26

Heart Failure Drugs: Inhibitors of Renin-Angiotensin System

The activation of the sympathetic nervous system and the renin-angiotensin-aldosterone system (RAAS) contributes to cardiac remodeling, and inhibiting the RAAS is a pharmacological target in heart failure management. As a result, neurohumoral modulation is a crucial treatment principle for managing heart failure. This approach involves using medications like ACE inhibitors (ACEIs), angiotensin receptor blockers (ARBs), β-blockers, mineralocorticoid receptor antagonists (MRAs), and neutral...
690
Antihypertensive Drugs: Angiotensin II Receptor Blockers01:30

Antihypertensive Drugs: Angiotensin II Receptor Blockers

In the renin-angiotensin-aldosterone system, a hormone called angiotensin II plays a crucial role. It binds to the AT1 receptors in vascular smooth muscles coupled with Gq proteins. The activation of these receptors activates an enzyme called phospholipase C, which releases two molecules: inositol trisphosphate and diacylglycerol. These molecules cause a chain reaction that leads to the phosphorylation of myosin light chains and promotes interaction between actin and myosin, leading to smooth...
2.1K
Antihypertensive Drugs: Direct Renin Inhibitors01:25

Antihypertensive Drugs: Direct Renin Inhibitors

The renin-angiotensin-aldosterone system (RAAS) is an intricate physiological pathway involving numerous enzymes and hormones, including renin, angiotensin-converting enzyme (ACE), angiotensin I and II, and aldosterone. Imbalances within this system increase the production of angiotensin II and aldosterone. Increased angiotensin II levels promote vasoconstriction and blood pressure elevation. Concurrently, higher aldosterone levels stimulate sodium and water reabsorption in the kidneys,...
1.1K