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

Primary and Secondary Growth in Roots and Shoots03:02

Primary and Secondary Growth in Roots and Shoots

60.7K
Vascular plants, which account for over 90% of the Earth’s vegetation, all undergo primary growth—which lengthens roots and shoots. Many land plants, notably woody plants, also undergo secondary growth—which thickens roots and shoots.
60.7K
Continuous Renal Replacement Therapy01:30

Continuous Renal Replacement Therapy

1.1K
Continuous Renal Replacement Therapy, also known as CRRT, is a procedural treatment for acute kidney injury (AKI) that gradually removes uremic toxins and fluids while maintaining acid-base balance and stabilizing electrolytes. It is particularly useful for hemodynamically unstable patients. Unlike intermittent hemodialysis, which is faster, CRRT provides a gentler approach over 24 hours, closely mimicking the function of natural kidneys. However, CRRT is not ideal for patients with...
1.1K
Root Mean Square00:57

Root Mean Square

3.8K
If in an experiment, data values have a probability of being both positive and negative, neither the arithmetic mean, the geometric mean, nor the harmonic mean can be used to calculate the central tendency of the data set. In particular, if the positive and negative values are equally likely, the arithmetic mean is close to zero.
For example, consider the velocity of gas molecules in a container. The gas molecules are moving in different directions, which might impart positive and negative...
3.8K
Aortic Regurgitation I: Introduction01:15

Aortic Regurgitation I: Introduction

696
IntroductionAortic regurgitation is characterized by the backward flow of blood from the aorta into the left ventricle during diastole and arises from the improper closure of the aortic valve. This condition results in left ventricular volume overload and can stem from both acute and chronic etiologies, each contributing uniquely to the disease's progression and symptomatology.Acute and Chronic CausesAcute aortic regurgitation often results from events that suddenly impair the integrity of the...
696
Properties of the Root Locus01:05

Properties of the Root Locus

308
The root locus method is an invaluable tool for analyzing higher-order systems without needing to factor the denominator of the transfer function. A pole of the system is identified when the characteristic polynomial in the transfer function's denominator equals zero.
To determine if a point lies on the root locus, the criterion involves the sum of angles contributed by all poles and zeros to that point. Specifically, this sum must be an odd multiple of 180 degrees. The gain at any point on...
308
Root-Locus Method01:19

Root-Locus Method

520
A cruise control system in a car is designed to maintain a specified speed automatically by adjusting the gas pedal. The system continuously measures the vehicle's speed and makes fine adjustments to the pedal to achieve this goal. The root locus method is particularly useful for understanding how the cruise control system's behavior changes under varying conditions, such as when the car goes uphill, downhill, or faces strong wind resistance.
This system can be represented by a block...
520

You might also read

Related Articles

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

Sort by
Same author

Myocardial 14-3-3η protein protects against mitochondria mediated apoptosis.

Cellular signalling·2015
Same author

Midazolam inhibits the formation of amyloid fibrils and GM1 ganglioside-rich microdomains in presynaptic membranes through the gamma-aminobutyric acid A receptor.

Biochemical and biophysical research communications·2015
Same author

Development of MRI-powered modular robotic system.

Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference·2015
Same author

Clinical Outcomes of SMART Versus Luminexx Nitinol Stent Implantation for Aortoiliac Artery Disease: A Propensity Score-Matched Multicenter Study.

Angiology·2014
Same author

Two-year life expectancy in patients with critical limb ischemia.

JACC. Cardiovascular interventions·2014
Same author

Relative income of clinical faculty members vs. science faculty members in university settings-a short survey of France, Hong Kong, India, Japan, South Korea, The Netherlands, Taiwan, UK, and USA.

Quantitative imaging in medicine and surgery·2014

Related Experiment Video

Updated: Feb 12, 2026

Full-root Aortic Valve Replacement by Stentless Aortic Xenografts in Patients with Small Aortic Roots
12:17

Full-root Aortic Valve Replacement by Stentless Aortic Xenografts in Patients with Small Aortic Roots

Published on: May 21, 2017

11.9K

Two Cases of Aortic Root Replacement After Fontan Completion.

Kenji Suzuki1, Takahiko Sakamoto1, Narutoshi Hibino1

  • 11 Department of Cardiovascular Surgery, The Heart Institute, Tokyo Women's Medical University, Tokyo, Japan.

World Journal for Pediatric & Congenital Heart Surgery
|April 5, 2018
PubMed
Summary

Aortic root dilatation can occur after Fontan completion in complex congenital heart disease. Long-term monitoring is crucial for patients who have undergone aortic root replacement surgery.

More Related Videos

Standardized Technique of Aortic Valve Re-implantation for Valve-sparing Aortic Root Replacement
14:14

Standardized Technique of Aortic Valve Re-implantation for Valve-sparing Aortic Root Replacement

Published on: December 11, 2017

14.7K
Complete and Partial Aortic Occlusion for the Treatment of Hemorrhagic Shock in Swine
09:37

Complete and Partial Aortic Occlusion for the Treatment of Hemorrhagic Shock in Swine

Published on: August 24, 2018

11.0K

Related Experiment Videos

Last Updated: Feb 12, 2026

Full-root Aortic Valve Replacement by Stentless Aortic Xenografts in Patients with Small Aortic Roots
12:17

Full-root Aortic Valve Replacement by Stentless Aortic Xenografts in Patients with Small Aortic Roots

Published on: May 21, 2017

11.9K
Standardized Technique of Aortic Valve Re-implantation for Valve-sparing Aortic Root Replacement
14:14

Standardized Technique of Aortic Valve Re-implantation for Valve-sparing Aortic Root Replacement

Published on: December 11, 2017

14.7K
Complete and Partial Aortic Occlusion for the Treatment of Hemorrhagic Shock in Swine
09:37

Complete and Partial Aortic Occlusion for the Treatment of Hemorrhagic Shock in Swine

Published on: August 24, 2018

11.0K

Area of Science:

  • Cardiovascular Surgery
  • Congenital Heart Disease
  • Aortic Root Abnormalities

Background:

  • Aortic root dilatation is a known complication in patients with congenital aortic valve malformation, tetralogy of Fallot, or double outlet right ventricle.
  • The Fontan procedure is a palliative surgery for complex single-ventricle congenital heart disease.

Observation:

  • Two rare cases of patients undergoing composite graft replacement of the aortic root with a mechanical valve (Bentall-type operation) after Fontan completion are reported.
  • Pathological examination of the resected aortic wall revealed mucoid degeneration in the tunica media and elastic fiber fragmentation.

Findings:

  • The study highlights the occurrence of aortic root pathology in patients with specific congenital heart defects following Fontan completion.
  • Histopathological analysis identified degenerative changes in the aortic wall, including mucoid degeneration and elastic fiber fragmentation.

Implications:

  • These findings underscore the importance of long-term surveillance for aortic root abnormalities in patients with complex congenital heart disease who have undergone Fontan completion and aortic root replacement.
  • Close observation is necessary to manage potential complications and ensure optimal patient outcomes.