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

ECG Interpretation of Arrhythmias II: Atrial, Junctional and Ventricular Arrhythmias01:25

ECG Interpretation of Arrhythmias II: Atrial, Junctional and Ventricular Arrhythmias

490
Arrhythmia is a condition characterized by an irregular heart rhythm, with ECG changes that differ based on its origin and nature. The types of arrhythmias discussed below include atrial, junctional, and ventricular arrhythmias.Atrial ArrhythmiasPremature Atrial Complexes (PACs): PACs are early atrial beats caused by stress, caffeine, alcohol, electrolyte imbalances, hypoxia, hyperthyroidism, or certain medications (e.g., bronchodilators and decongestants). The ECG shows early P waves with an...
490
Cardiac Catheterization III: Left Heart Catheterization01:24

Cardiac Catheterization III: Left Heart Catheterization

618
Left heart catheterization is an invasive diagnostic procedure used to evaluate the function and structure of the left side of the heart. It is generally performed to diagnose and treat cardiovascular conditions such as valve abnormalities, coronary artery disease, and congenital heart defects.Diagnostic and therapeutic purposesLeft heart catheterization serves various diagnostic and therapeutic purposes, including:Assessing coronary artery bypass grafts.Evaluating coronary artery disease in...
618
Fixing Double-strand Breaks02:04

Fixing Double-strand Breaks

14.4K
The double-stranded structure of DNA has two major advantages. First, it serves as a safe repository of genetic information where one strand serves as the back-up in case the other strand is damaged. Second, the double-helical structure can be wrapped around proteins called histones to form nucleosomes, which can then be tightly wound to form chromosomes. This way, DNA chains up to 2 inches long can be contained within microscopic structures in a cell. A double-stranded break not only damages...
14.4K
The Nucleolus02:55

The Nucleolus

10.3K
The nucleolus is the most prominent substructure of the nucleus. When it was first discovered, it was considered to be an isolated organelle that forms fibrils and granules. In 1931, the relationship between the nucleolus and chromosomes was first described by Heitz. He observed that the appearance and size of nucleolus varies depending on the stage of the cell cycle. He also noticed constricted regions on different chromosomes clustered together at definite cell cycle stages. These regions,...
10.3K
Frequency-dependent Selection01:21

Frequency-dependent Selection

23.1K
When the fitness of a trait is influenced by how common it is (i.e., its frequency) relative to different traits within a population, this is referred to as frequency-dependent selection. Frequency-dependent selection may occur between species or within a single species. This type of selection can either be positive—with more common phenotypes having higher fitness—or negative, with rarer phenotypes conferring increased fitness.
23.1K
Gene Evolution - Fast or Slow?02:05

Gene Evolution - Fast or Slow?

8.0K
The genomes of eukaryotes are punctuated by long stretches of sequence which do not code for proteins or RNAs. Although some of these regions do contain crucial regulatory sequences, the vast majority of this DNA serves no known function. Typically, these regions of the genome are the ones in which the fastest change, in evolutionary terms, is observed, because there is typically little to no selection pressure acting on these regions to preserve their sequences.
In contrast, regions which code...
8.0K

You might also read

Related Articles

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

Sort by
Same author

Hispanic-Latino Race is Associated with Worse Heart Failure Symptoms in Patients with Hypertrophic Cardiomyopathy.

Reviews in cardiovascular medicine·2025
Same author

Presence of Apical Aneurysm and Its Impact on Left Ventricular Mechanics and Mechano-Energetic Coupling in Patients With Apical Hypertrophic Cardiomyopathy.

Echocardiography (Mount Kisco, N.Y.)·2024
Same author

A rare etiology of frequent ventricular ectopy: Embolic complication of a venous iliac stent to the right ventricle.

Echocardiography (Mount Kisco, N.Y.)·2024
Same author

Right ventricular hypertrophy in apical hypertrophic cardiomyopathy.

Echocardiography (Mount Kisco, N.Y.)·2023
Same author

Thrombus in transit across a patent foramen ovale in a patient with cerebrovascular accidents, pulmonary embolism, and deep vein thrombosis.

Annals of cardiac anaesthesia·2021
Same author

A systematic review on the use of ultrasound enhancing agents with transesophageal echocardiography to assess the left atrial appendage prior to cardioversion.

Echocardiography (Mount Kisco, N.Y.)·2021

Related Experiment Video

Updated: Jan 22, 2026

Donor Posterior Atrial Flap Rotation for Left Atrial Cuff Reconstruction in Lung Transplantation
07:28

Donor Posterior Atrial Flap Rotation for Left Atrial Cuff Reconstruction in Lung Transplantation

Published on: October 11, 2024

717

Left atrial dissection: A rare entity.

Nicholas Suraci1, Christos G Mihos2, Alexander Volsky1

  • 1Department of Anesthesiology, Mount Sinai Medical Center, Miami Beach, Florida.

Echocardiography (Mount Kisco, N.Y.)
|July 10, 2019
PubMed
Summary
This summary is machine-generated.

Left atrial wall dissection is a rare condition. Transesophageal echocardiography revealed this in a patient with infective endocarditis post-mitral valve repair.

Keywords:
dissectionendocarditistransesophageal echocardiography

More Related Videos

Cooling or Warming the Esophagus to Reduce Esophageal Injury During Left Atrial Ablation in the Treatment of Atrial Fibrillation
06:25

Cooling or Warming the Esophagus to Reduce Esophageal Injury During Left Atrial Ablation in the Treatment of Atrial Fibrillation

Published on: March 15, 2020

10.5K
Left Atrial Stenosis Induced Pulmonary Venous Arterialization and Group 2 Pulmonary Hypertension in Rat
08:34

Left Atrial Stenosis Induced Pulmonary Venous Arterialization and Group 2 Pulmonary Hypertension in Rat

Published on: November 18, 2018

7.6K

Related Experiment Videos

Last Updated: Jan 22, 2026

Donor Posterior Atrial Flap Rotation for Left Atrial Cuff Reconstruction in Lung Transplantation
07:28

Donor Posterior Atrial Flap Rotation for Left Atrial Cuff Reconstruction in Lung Transplantation

Published on: October 11, 2024

717
Cooling or Warming the Esophagus to Reduce Esophageal Injury During Left Atrial Ablation in the Treatment of Atrial Fibrillation
06:25

Cooling or Warming the Esophagus to Reduce Esophageal Injury During Left Atrial Ablation in the Treatment of Atrial Fibrillation

Published on: March 15, 2020

10.5K
Left Atrial Stenosis Induced Pulmonary Venous Arterialization and Group 2 Pulmonary Hypertension in Rat
08:34

Left Atrial Stenosis Induced Pulmonary Venous Arterialization and Group 2 Pulmonary Hypertension in Rat

Published on: November 18, 2018

7.6K

Area of Science:

  • Cardiology
  • Cardiac Surgery
  • Diagnostic Imaging

Background:

  • Left atrial wall dissection is an exceptionally rare clinical finding.
  • Infective endocarditis and prior mitral valve repair are potential contributing factors.

Observation:

  • A 71-year-old female presented with complications following mitral valve repair.
  • Transesophageal echocardiography was utilized for diagnostic evaluation.

Findings:

  • The diagnostic imaging identified a rare case of left atrial wall dissection.
  • The dissection was observed in the context of infective endocarditis.

Implications:

  • This case highlights the importance of considering rare complications after cardiac surgery.
  • Transesophageal echocardiography is crucial for diagnosing such uncommon cardiac pathologies.