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Related Concept Videos

Pulse Assessment Sites01:11

Pulse Assessment Sites

Pulse assessment sites are crucial in evaluating a patient's cardiovascular health. By assessing the pulsations of arteries at specific anatomical locations, healthcare professionals can gather valuable information about blood flow, heart rate, and peripheral circulation. Understanding these pulse assessment sites is essential for conducting comprehensive cardiovascular evaluations and monitoring patients' overall health. These sites are strategically chosen due to the accessibility and...
Pulse amplitude and quality01:17

Pulse amplitude and quality

Pulse amplitude is a crucial indicator of cardiac health because it provides valuable insights into the strength of left ventricular contractions and the overall uniformity of blood circulation within the vasculature. The strength of the pulse is directly related to the force with which the heart contracts and the volume of blood being pumped.
A weak or absent pulse may indicate reduced cardiac output or poor left ventricular contraction, which can be signs of cardiovascular dysfunction or...
Assessing Blood pressure using a doppler ultrasound01:19

Assessing Blood pressure using a doppler ultrasound

To obtain accurate blood pressure measurements in clinical settings, especially when traditional methods are insufficient, healthcare professionals utilize the Doppler ultrasound technique. This method uses high-frequency sound waves to detect blood flow within the arteries, which is crucial for patients with conditions that complicate circulatory system assessment.
Pre-Procedural Guidelines for Doppler Ultrasound Blood Pressure Assessment:
Preparation of Equipment:
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...
Pulse01:16

Pulse

When the heart pumps blood out, arterial elastic fibers play a crucial role in sustaining a high-pressure gradient. They expand to accommodate the received blood and then recoil - a process known as the pulse that can be either manually palpated or electronically quantified. Despite a reduction in its effect with increased distance from the heart, elements of the pulse's systolic and diastolic components persist, observable even at the arteriole level.
The pulse serves as a clinical indicator...
Assessment of blood pressure in brachial artery(two-step method)01:23

Assessment of blood pressure in brachial artery(two-step method)

Measuring blood pressure is a fundamental skill in healthcare that aids in diagnosing and monitoring hypertension and other cardiovascular conditions. An aneroid sphygmomanometer, commonly used in clinical settings, offers a manual and precise method for blood pressure measurement. The technique for using this instrument involves specific steps that must be carefully executed to ensure accuracy. The following detailed description outlines a two-step technique for assessing blood pressure using...

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Related Experiment Video

Updated: Jun 22, 2026

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

Assessment of endothelial function using digital pulse amplitude tonometry.

Naomi M Hamburg1, Emelia J Benjamin

  • 1Whitaker Cardiovascular Institute, Department of Medicine, Boston University School of Medicine, Boston, MA 02118, USA. naomi.hamburg@bmc.org

Trends in Cardiovascular Medicine
|May 27, 2009
PubMed
Summary

Endothelial dysfunction contributes to cardiovascular disease. A new noninvasive device, digital pulse amplitude tonometry, accurately measures peripheral endothelial vasodilator function.

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Pulse-Wave Velocity, Flow-Mediated Dilation, and Carotid Intima-Media Thickness to Assess Cardiovascular Risk in Population with Metabolic Syndrome
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Pulse-Wave Velocity, Flow-Mediated Dilation, and Carotid Intima-Media Thickness to Assess Cardiovascular Risk in Population with Metabolic Syndrome

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Ultrasound Assessment of Endothelial Function: A Technical Guideline of the Flow-mediated Dilation Test
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Ultrasound Assessment of Endothelial Function: A Technical Guideline of the Flow-mediated Dilation Test

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Related Experiment Videos

Last Updated: Jun 22, 2026

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

Pulse-Wave Velocity, Flow-Mediated Dilation, and Carotid Intima-Media Thickness to Assess Cardiovascular Risk in Population with Metabolic Syndrome
06:04

Pulse-Wave Velocity, Flow-Mediated Dilation, and Carotid Intima-Media Thickness to Assess Cardiovascular Risk in Population with Metabolic Syndrome

Published on: September 27, 2024

Ultrasound Assessment of Endothelial Function: A Technical Guideline of the Flow-mediated Dilation Test
06:35

Ultrasound Assessment of Endothelial Function: A Technical Guideline of the Flow-mediated Dilation Test

Published on: April 27, 2016

Area of Science:

  • Cardiovascular Medicine
  • Physiology
  • Biomedical Engineering

Background:

  • Endothelial dysfunction is a key factor in cardiovascular disease development and manifestation.
  • Impaired endothelial function correlates with a higher risk of cardiovascular events.
  • Nitric oxide-mediated vasodilation is a critical indicator of endothelial health.

Purpose of the Study:

  • To review studies validating digital pulse amplitude tonometry (DPAT) for assessing peripheral endothelial function.
  • To highlight DPAT as a noninvasive method for measuring microcirculatory vasodilator function.
  • To establish DPAT's relevance in the context of cardiovascular disease research.

Main Methods:

  • Utilizing a novel pulse amplitude tonometry device for noninvasive measurement.
  • Assessing microcirculation vasodilator function in the finger.
  • Reviewing recent scientific literature on DPAT efficacy.

Main Results:

  • DPAT noninvasively measures vasodilator function in the finger's microcirculation.
  • Studies support DPAT's utility as a relevant test for peripheral endothelial function.
  • The device assesses the body's response to nitric oxide-releasing stimuli.

Conclusions:

  • Digital pulse amplitude tonometry is a valuable noninvasive tool for evaluating peripheral endothelial function.
  • DPAT can aid in assessing cardiovascular disease risk by measuring endothelial health.
  • Further research supports DPAT's role in clinical practice and research.