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

Global Climate Change01:50

Global Climate Change

29.0K
Throughout its ~4.5 billion year history, the Earth has experienced periods of warming and cooling. However, the current drastic increase in global temperatures is well outside of the Earth’s cyclic norms, and evidence for human-caused global climate change is compelling. Paleoclimatology, the study of ancient climate conditions, provides ample evidence for human-caused global climate change by comparing recent conditions with those in the past.
29.0K
Standard Entropy Change for a Reaction03:00

Standard Entropy Change for a Reaction

25.0K
Entropy is a state function, so the standard entropy change for a chemical reaction (ΔS°rxn) can be calculated from the difference in standard entropy between the products and the reactants.
25.0K
Rates of Change01:20

Rates of Change

134
The rate of change is a central concept in mathematics that quantifies how one variable varies in response to another. It serves as a foundational tool in modeling dynamic systems across disciplines such as physics, biology, economics, and engineering. Understanding both average and instantaneous rates of change enables the analysis of behavior in functions that describe real-world phenomena.Average Rate of ChangeFor a function f(x) defined over an interval [x1,x2], the average rate of change...
134
Work Done During Volume Change01:17

Work Done During Volume Change

5.2K
In mechanics, work is done on an object when the force acting on it displaces the object. In thermodynamics, work done on a system can be estimated when the system's volume changes during any thermodynamic process.
Consider a gas confined to a cylinder fitted with a movable piston at one end. If the gas expands from volume V1 to volume V2, it exerts a force on the piston, such that the piston moves by a distance dr.
The work done by the gas on the piston can be expressed as
5.2K
Net Change Theorem01:22

Net Change Theorem

76
The Net Change Theorem is a fundamental principle in calculus that establishes a direct relationship between a function’s rate of change and its accumulated change over an interval. Mathematically, it states that the definite integral of a function's derivative over a given interval [a,b] yields the net change in the original function:This theorem has significant applications in various real-world scenarios, including physics, economics, and engineering. A particularly useful application...
76
Le Chatelier's Principle: Changing Temperature02:19

Le Chatelier's Principle: Changing Temperature

35.6K
Consistent with the law of mass action, an equilibrium stressed by a change in concentration will shift to re-establish equilibrium without any change in the value of the equilibrium constant, K. When an equilibrium shifts in response to a temperature change, however, it is re-established with a different relative composition that exhibits a different value for the equilibrium constant.
To understand this phenomenon, consider the elementary reaction:
35.6K

You might also read

Related Articles

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

Sort by
Same author

Frame Matters: Platform-Specific Barriers to Leaflet Modification in Redo-TAVR.

JACC. Cardiovascular interventions·2026
Same author

Corrigendum to A-41 | Percutaneous Coronary Intervention With Procedural Unfractionated Heparin Without Activated Clotting Time Guidance: A Unique Opportunity to Assess Thrombotic and Bleeding Events [<i>Journal of the Society for Cardiovascular Angiography & Interventions</i>, 2(3S), 100705].

Journal of the Society for Cardiovascular Angiography & Interventions·2025
Same author

Percutaneous Coronary Intervention with Procedural Unfractionated Heparin without Activated Clotting Time Guidance: A Unique Opportunity to Assess Thrombotic and Bleeding Events.

International journal of clinical practice·2024
Same author

Simultaneous Transcatheter Mitral and Tricuspid Valve-in-Ring Implantations: Case Report.

CJC open·2023
Same author

Transcatheter Edge-to-Edge Repair: A Promising or Last Resort Technique for Carpentier Class IIIa Mitral Regurgitation?

JACC. Case reports·2023
Same author

Transcutaneous Closure of Aortic Valve Cusp Perforation.

Structural heart : the journal of the Heart Team·2023

Related Experiment Video

Updated: Feb 12, 2026

Safety Precautions and Operating Procedures in an ABSL-4 Laboratory: 2. General Practices
08:53

Safety Precautions and Operating Procedures in an ABSL-4 Laboratory: 2. General Practices

Published on: October 3, 2016

19.0K

Expert Opinion Will PARTNER 2 Change My Practice?

Fadi J Sawaya1, Lars Søndergaard1

  • 1The Heart Center, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark.

Interventional Cardiology (London, England)
|March 29, 2018
PubMed
Summary
This summary is machine-generated.

Transcatheter aortic valve implantation (TAVI) is a proven treatment for severe aortic stenosis, showing outcomes comparable to surgical valve replacement in high-risk patients. The PARTNER 2 trial confirms TAVI

Keywords:
Aortic valve stenosisSTSlow risksurgical aortic valve replacementtranscatheter aortic valve implantationtransfemoral access

More Related Videos

How to Find Effects of Stimulus Processing on Event Related Brain Potentials of Close Others when Hyperscanning Partners
09:52

How to Find Effects of Stimulus Processing on Event Related Brain Potentials of Close Others when Hyperscanning Partners

Published on: May 31, 2018

8.1K
Identification of Protein Interacting Partners Using Tandem Affinity Purification
10:02

Identification of Protein Interacting Partners Using Tandem Affinity Purification

Published on: February 25, 2012

38.3K

Related Experiment Videos

Last Updated: Feb 12, 2026

Safety Precautions and Operating Procedures in an ABSL-4 Laboratory: 2. General Practices
08:53

Safety Precautions and Operating Procedures in an ABSL-4 Laboratory: 2. General Practices

Published on: October 3, 2016

19.0K
How to Find Effects of Stimulus Processing on Event Related Brain Potentials of Close Others when Hyperscanning Partners
09:52

How to Find Effects of Stimulus Processing on Event Related Brain Potentials of Close Others when Hyperscanning Partners

Published on: May 31, 2018

8.1K
Identification of Protein Interacting Partners Using Tandem Affinity Purification
10:02

Identification of Protein Interacting Partners Using Tandem Affinity Purification

Published on: February 25, 2012

38.3K

Area of Science:

  • Cardiology
  • Interventional Cardiology
  • Medical Devices

Background:

  • Severe aortic stenosis (AS) requires intervention, with transcatheter aortic valve implantation (TAVI) emerging as a key treatment.
  • TAVI outcomes are comparable to surgical aortic valve replacement (SAVR) in high-risk patients, as shown by the PARTNER 1 trial.

Purpose of the Study:

  • To evaluate current Transcatheter Aortic Valve Implantation (TAVI) practices in Europe.
  • To compare outcomes of TAVI with Surgical Aortic Valve Replacement (SAVR).
  • To assess the impact of new-generation devices on TAVI results.

Main Methods:

  • Analysis of data from the PARTNER 2 trial, reflecting contemporary European TAVI practice.
  • Comparison of clinical outcomes between transfemoral TAVI and SAVR in a selected patient population.

Main Results:

  • Transfemoral TAVI demonstrated superior outcomes compared to SAVR in a selected population.
  • New-generation TAVI devices are associated with improved clinical results.
  • TAVI is a viable alternative to SAVR for severe aortic stenosis.

Conclusions:

  • Transcatheter aortic valve implantation (TAVI) is an established and effective treatment for severe aortic stenosis.
  • Transfemoral access in TAVI is linked to better outcomes than SAVR in specific patient groups.
  • Advancements in TAVI technology continue to enhance patient outcomes.