Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Hypertension II: Pathophysiology01:29

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,...
Alterations in Blood Pressure01:30

Alterations in Blood Pressure

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)
Hypertension occurs when blood pressure readings consistently exceed the normal range. It is diagnosed when systolic blood pressure (the top number, indicating pressure while the heart beats)...
Measurement of Blood Pressure01:17

Measurement of Blood Pressure

Assessing blood pressure is a standard procedure executed in virtually all medical environments. The method utilized today was established over a hundred years ago by an innovative Russian doctor, Dr. Nikolai Korotkoff. The soft ticking noise, known as Korotkoff sounds, heard while taking blood pressure readings results from turbulent blood flow within the vessels. The apparatus required for this procedure includes a sphygmomanometer, a blood pressure cuff attached to a gauge, and a stethoscope.
Disorders of the Autonomic Nervous System01:18

Disorders of the Autonomic Nervous System

The autonomic nervous system (ANS) is an intricate network of nerves that controls functions such as the regulation of heart rate, digestion, and blood pressure regulation. When this system malfunctions, it can lead to various disorders that affect multiple bodily functions. One common feature of many autonomic disorders is the involvement of smooth blood vessels, which play a crucial role in regulating blood flow throughout the body.
Raynaud's disease, also known as Raynaud's phenomenon, is a...
Hypertension I: Introduction01:28

Hypertension I: Introduction

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,...
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...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Suppression of Escherichia coli O157:H7 by Pseudomonas fluorescens A506 on romaine lettuce leaves is independent of iron competition.

International journal of food microbiology·2026
Same author

The temporal evaluation of RAS mutation by liquid biopsy at progression after bevacizumab-based treatment in patients with metastatic colorectal cancer.

Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico·2026
Same author

Late-Onset Vitamin K Deficiency Bleeding in Four Infants: A Forensic Pathology Case Series With Clinical-Autopsy Correlation.

Academic forensic pathology·2026
Same author

Effects of Weak Organic Acid Salts on Growth Kinetics of Spoilage-Associated Lactic Acid Bacteria in Cured Ready-to-Eat Turkey Breast.

Journal of food protection·2026
Same author

Clavipectoral Fascial Plane Block for Analgesia in Cardiac Implantable Electronic Device Implantation.

Pacing and clinical electrophysiology : PACE·2026
Same author

Histopathological changes in the olfactory pathway in COVID-19: An autopsy-based case-control study.

Irish journal of medical science·2026

Related Experiment Video

Updated: Jun 24, 2026

Pulse Wave Velocity Testing in the Baltimore Longitudinal Study of Aging
06:08

Pulse Wave Velocity Testing in the Baltimore Longitudinal Study of Aging

Published on: February 7, 2014

P-wave dispersion increases in prehypertension.

Goksel Cagirci1, Serkan Cay, Ozlem Karakurt

  • 1Department of Cardiology, Ministry of Health Diskapi Yildirim Beyazit Research and Educational Hospital, Ankara, Turkey.

Blood Pressure
|April 9, 2009
PubMed
Summary

Prehypertension is linked to increased P-wave duration and dispersion, suggesting a higher risk of atrial fibrillation (AF). This study compared P-wave parameters in prehypertensive versus normotensive individuals.

Related Experiment Videos

Last Updated: Jun 24, 2026

Pulse Wave Velocity Testing in the Baltimore Longitudinal Study of Aging
06:08

Pulse Wave Velocity Testing in the Baltimore Longitudinal Study of Aging

Published on: February 7, 2014

Area of Science:

  • Cardiology
  • Electrophysiology
  • Hypertension Research

Background:

  • Atrial fibrillation (AF) is a common arrhythmia.
  • Prolonged P-wave duration and increased P-wave dispersion are known predictors of AF.
  • Prehypertension, defined by JNC7 guidelines, precedes hypertension and is associated with cardiovascular risks.

Purpose of the Study:

  • To investigate the relationship between prehypertension and P-wave dispersion.
  • To determine if prehypertensive individuals exhibit altered P-wave parameters compared to normotensive individuals.

Main Methods:

  • Seventy-eight prehypertensive and 78 normotensive patients were enrolled.
  • Standard 12-lead ECGs were recorded for all participants.
  • Transthoracic echocardiographic examinations were performed.

Main Results:

  • Pmax and P-wave dispersion were significantly higher in the prehypertensive group compared to the normotensive group (p<0.001 for both).
  • Specific values: Pmax 103.59+/-19.8 ms vs 93.59+/-13.4 ms; P-wave dispersion 50.51+/-18.6 ms vs 39.85+/-10.6 ms.

Conclusions:

  • Prehypertensive patients demonstrate increased Pmax and P-wave dispersion compared to normotensive individuals.
  • These findings suggest a potentially elevated risk of developing atrial fibrillation in individuals with prehypertension.