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Related Concept Videos

Heart Valves01:16

Heart Valves

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The human heart is a complex organ with an intricate system of valves that regulate blood flow. There are two main types of valves: atrioventricular (AV) valves and semilunar valves.
The AV valves prevent the backflow of blood from the ventricles to the atria during ventricular contraction. These valves function with the assistance of the chordae tendineae and papillary muscles. When the ventricles are relaxed, the chordae tendineae are slack, allowing blood to flow from the atria into the...
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Overview of the Vascular System01:20

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The vascular system comprises an extensive network of arteries, capillaries, and veins. The vascular system can be broadly divided into the blood and lymphatic systems. Typically, blood vessels can be categorized into three histological regions: tunica intima, tunica media, and tunica adventitia. The tunica intima consists of a single layer of endothelial cells attached to the basal lamina. Underlying the basal lamina is a connective tissue layer and an elastic lamina that gives stability and...
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Overview of the Cardiovascular System01:14

Overview of the Cardiovascular System

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The cardiovascular system is a vital transportation system in the body. It comprises the heart and blood vessels and facilitates the exchange of gases, nutrients, and waste products.
Heart
The heart is the central pump of the cardiovascular system that circulates blood throughout the body. It comprises two atria receiving the blood and two ventricles pumping blood out of the heart. Their rhythmic contractions, called heartbeats, ensure that blood flow remains continuous.
Blood Vessels
Blood...
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Mitral Valve Prolapse I: Introduction01:27

Mitral Valve Prolapse I: Introduction

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IntroductionThe mitral valve, one of the heart's four valves, regulates blood flow. These valves have flaps that open and close to direct blood properly through the heart and body. During each heartbeat, the flaps open for blood to pass through and seal shut to prevent backflow. Specifically, the mitral valve opens to allow blood flow from the heart's upper left chamber to the lower left chamber. It then closes securely as the lower left chamber contracts to pump blood to the body, preventing...
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Overview of Systemic Veins01:11

Overview of Systemic Veins

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Systemic veins are crucial blood vessels that return deoxygenated blood from various body tissues back to the heart. There are three systemic veins that return deoxygenated blood to the heart, they are as follows.
The coronary sinus, the heart's principal vein, resides in the coronary sulcus on the heart's posterior aspect. This broad venous channel receives nearly all venous blood from the myocardium, the heart muscle. It is fed by three primary veins: the great cardiac vein, the...
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Veins01:17

Veins

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Veins are an integral part of our circulatory system, serving as the blood vessels that transport blood from all body regions to the heart. They are a network of hollow tubes that carry blood low in oxygen from the body's cells back to the heart for reoxygenation. Veins are crucial for maintaining the body's overall fluid balance and the continuous circulation of blood.
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Related Experiment Video

Updated: Sep 6, 2025

Culturing Mouse Cardiac Valves in the Miniature Tissue Culture System
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Culturing Mouse Cardiac Valves in the Miniature Tissue Culture System

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Valves, Vegetations, and Valves.

Gregory L Judson1, Vaikom S Mahadevan

  • 1University of California, San Francisco, Department of Medicine, Division of Cardiology, San Francisco, CA USA. gregory.judson@ucsf.edu.

The Journal of Invasive Cardiology
|June 30, 2022
PubMed
Summary
This summary is machine-generated.

A new treatment combines AngioVac debulking with valve replacement to address right-sided bioprosthetic valve endocarditis. This approach targets residual degeneration and ventricular dysfunction effectively.

Keywords:
aspirationbioprosthetic valve endocarditisright ventricular dysfunction

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Area of Science:

  • Cardiology
  • Cardiac Surgery
  • Interventional Cardiology

Background:

  • Bioprosthetic valve endocarditis poses significant challenges, particularly on the right side.
  • Residual degeneration and right ventricular dysfunction are common complications after initial treatment.

Purpose of the Study:

  • To introduce and evaluate a novel, combined therapeutic strategy for right-sided bioprosthetic valve endocarditis.
  • To address persistent valve degeneration and associated right ventricular dysfunction.

Main Methods:

  • Utilized AngioVac debulking to remove vegetation and infected material.
  • Performed subsequent percutaneous pulmonic and tricuspid valve replacement to manage residual degeneration.

Main Results:

  • Demonstrated the feasibility of a two-stage approach combining debulking and valve replacement.
  • Successfully managed residual transcatheter valve degeneration and right ventricular dysfunction.

Conclusions:

  • This novel method offers a promising solution for complex right-sided bioprosthetic valve endocarditis.
  • The combined strategy effectively treats infection, valve degeneration, and ventricular dysfunction.