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Related Concept Videos

Peripheral Arterial Disease II: Clinical Manifestations and Diagnostic Evaluation01:21

Peripheral Arterial Disease II: Clinical Manifestations and Diagnostic Evaluation

Clinical manifestationsPeripheral Arterial Disease (PAD) manifests through a range of symptoms, from the characteristic intermittent claudication to atypical presentations and severe complications in advanced stages. Intermittent claudication, a hallmark symptom of PAD, presents as exercise-induced muscle pain that typically resolves within minutes of rest. This pain is reproducible and stems from inadequate blood flow, leading to the accumulation of lactic acid produced during anaerobic...

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Related Experiment Video

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A Methodological Approach to Non-invasive Assessments of Vascular Function and Morphology
09:33

A Methodological Approach to Non-invasive Assessments of Vascular Function and Morphology

Published on: February 7, 2015

Non-invasive diagnostic tools for investigating endothelial dysfunction.

Lorenzo Ghiadoni1, Daniele Versari, Chiara Giannarelli

  • 1Department of Internal Medicine, University of Pisa, Via Roma 67, Pisa, Italy. l.ghiadoni@med.unipi.it

Current Pharmaceutical Design
|January 9, 2009
PubMed
Summary
This summary is machine-generated.

Assessing endothelial function is crucial for cardiovascular health. While non-invasive tests like flow-mediated dilation show promise, no single method is yet reliable enough for widespread clinical use.

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Last Updated: Jun 26, 2026

A Methodological Approach to Non-invasive Assessments of Vascular Function and Morphology
09:33

A Methodological Approach to Non-invasive Assessments of Vascular Function and Morphology

Published on: February 7, 2015

Non-invasive Assessment of Microvascular and Endothelial Function
05:41

Non-invasive Assessment of Microvascular and Endothelial Function

Published on: January 29, 2013

Assessing Endothelial Vasodilator Function with the Endo-PAT 2000
07:46

Assessing Endothelial Vasodilator Function with the Endo-PAT 2000

Published on: October 15, 2010

Area of Science:

  • Cardiovascular Research
  • Vascular Biology
  • Diagnostic Methods

Background:

  • The endothelium is vital for vascular homeostasis; its dysfunction signals early atherosclerotic changes and cardiovascular events.
  • Non-invasive vascular reactivity tests are key for assessing endothelial function in macrocirculation and microcirculation.

Purpose of the Study:

  • To review and critically evaluate non-invasive techniques for studying endothelial function.
  • To discuss the advantages and limitations of current methodologies.

Main Methods:

  • Flow-mediated dilation (FMD) of the brachial artery using ultrasound.
  • Microcirculatory reactive hyperemia assessment (venous plethysmography, digital pulse amplitude tonometry).
  • Other methods include applanation tonometry, digital photoplethysmography, and skin laser Doppler tests.

Main Results:

  • Flow-mediated dilation (FMD) is the most widely used and reproducible test when performed correctly.
  • Systemic markers (NO biology, cytokines, adhesion molecules) have limited clinical utility due to variability.
  • Post-ischemic vasodilation in cavernous arteries is a potential method for erectile dysfunction assessment.

Conclusions:

  • No single non-invasive test currently possesses sufficient sensitivity and specificity for routine clinical use in assessing endothelial function.
  • Further research with concordant results from multiple reliable methods is needed to establish definitive clinical applications.