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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...
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Hypertension II: Pathophysiology

Hypertension is a chronic condition in which the blood's force against artery walls is excessively high, posing risks such as heart disease. The condition's underlying mechanisms involve complex interactions among the cardiovascular, kidney, and autonomic nervous systems.Renin-Angiotensin-Aldosterone System (RAAS): This system significantly influences blood pressure regulation. When blood pressure decreases, the kidneys secrete renin. This enzyme transforms angiotensinogen, a plasma protein,...
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Hypertension and Regulation of Blood Pressure

Hypertension, the most common cardiovascular disease, is diagnosed through repeated measurements of elevated blood pressure. Its risks, including damage to the kidney, heart, and brain, are directly proportional to blood pressure levels. Starting from 115/75 mm Hg, the risk of cardiovascular disease doubles with each increment of 20/10 mm Hg. The diagnosis relies on blood pressure measurements, not on patient symptoms, as hypertension is often asymptomatic until end-organ damage is imminent or...
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Hypertension is a widespread, long-term medical condition where blood pressure in the arteries remains elevated. It is characterized by systolic blood pressure readings of 130 mm Hg or above or diastolic blood pressure (DBP) readings of 80 mm Hg or higher. Unmanaged hypertension poses significant health risks, making the distinction between primary (or essential) hypertension and secondary hypertension crucial, as their management and implications vary.Primary HypertensionPrimary hypertension,...
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Alterations in Blood Pressure01:30

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Alterations in blood pressure, such as hypertension (high blood pressure) and hypotension (low blood pressure), significantly affect human health. Understanding these conditions' classifications, causes, and symptoms is essential for effective management and treatment.
Hypertension (High blood pressure)
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Non-invasive Assessment of Microvascular and Endothelial Function
05:41

Non-invasive Assessment of Microvascular and Endothelial Function

Published on: January 29, 2013

Vascular abnormalities in essential hypertension.

Isabella Sudano1, Susanne Roas, Georg Noll

  • 1Cardiovascular Center Cardiology, University Hospital Zürich, Zürich. Isabella.sudano@usz.ch

Current Pharmaceutical Design
|August 25, 2011
PubMed
Summary
This summary is machine-generated.

Arterial hypertension involves vascular abnormalities and endothelial dysfunction, marked by reduced nitric oxide and increased vasoconstricting factors. This dysfunction is an early indicator of cardiovascular risk and damage in hypertensive patients.

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Last Updated: May 30, 2026

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08:50

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Published on: June 16, 2014

Area of Science:

  • Cardiovascular Medicine
  • Vascular Biology
  • Hypertension Research

Background:

  • Arterial hypertension is a prevalent condition linked to significant cardiovascular disease risk.
  • Patients exhibit vascular abnormalities, including endothelial dysfunction, impacting vascular tone and structure.
  • Endothelial cells produce both relaxing and contracting factors, crucial for vascular health.

Purpose of the Study:

  • To elucidate the role of endothelial dysfunction in arterial hypertension.
  • To highlight the significance of nitric oxide availability and vasoconstricting factors.
  • To emphasize arterial stiffness as a cardiovascular risk predictor in hypertension.

Main Methods:

  • Analysis of endothelial function markers, including nitric oxide production.
  • Assessment of endothelium-derived contracting factors, such as endothelin-1.
  • Measurement of arterial stiffness as a predictor of cardiovascular outcomes.

Main Results:

  • Reduced nitric oxide production and increased oxidative stress are observed early, even in normotensive offspring of hypertensive individuals.
  • Endothelial dysfunction, characterized by low nitric oxide and high vasoconstricting factors, predicts atherothrombotic damage.
  • Increased arterial stiffness is a validated predictor of adverse cardiovascular outcomes in hypertensive patients.

Conclusions:

  • Endothelial dysfunction is a key early indicator of cardiovascular risk in arterial hypertension.
  • Restoring endothelial function and managing arterial stiffness are critical in hypertension management.
  • Measurement of arterial stiffness is recommended by European guidelines for hypertensive patients.