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Related Concept Videos

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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Mitral Valve Prolapse II: Assessment and Management01:22

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IntroductionA range of clinical features characterizes Mitral Valve Prolapse (MVP), but it is important to note that many individuals with MVP are asymptomatic and may remain so throughout their lives. For those who do exhibit symptoms, the following are the key clinical features:Palpitations: This is a common symptom where individuals feel an irregular or rapid heartbeat. Palpitations in MVP are often due to arrhythmias such as premature ventricular contractions or supraventricular...
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Mitral Valve Prolapse III: Nursing Management01:19

Mitral Valve Prolapse III: Nursing Management

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The nursing management of Mitral Valve Prolapse, or MVP, centers around patient education, symptom monitoring, and lifestyle modifications.Patient Education on MVP Diagnosis and Heredity: Nurses should provide comprehensive education about MVP, a condition where the mitral valve does not close appropriately during heartbeats. This education often includes the condition's pathophysiology, symptoms, and potential complications, like arrhythmias or mitral regurgitation. Though not fully...
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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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Mitral Stenosis I: Introduction01:22

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Mitral Valve Stenosis (MVS) is a heart condition where the mitral valve narrows, impeding blood circulation from the left atrium to the left ventricle. The etiology and pathophysiology of this condition are multifaceted, leading to a cascade of cardiovascular complications.Causes of Mitral Valve StenosisRheumatic Heart Disease: It is the main cause of mitral valve stenosis, particularly in developing nations. This condition arises from rheumatic fever, an inflammatory illness resulting from...
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Mitral Regurgitation I: Introduction01:20

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Mitral regurgitation is characterized by the backward circulation of blood from the left ventricle to the left atrium during systole, a phase of the cardiac cycle when the heart contracts and pumps blood out of the chambers. This abnormal flow occurs primarily due to the dysfunction of the mitral valve or its supporting structures, which include the mitral leaflets, chordae tendineae, annulus, and papillary muscles.Etiology and Mechanisms:Primary Mitral Regurgitation: This type arises from...
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Related Experiment Video

Updated: Feb 2, 2026

Standardized Technique of Aortic Valve Re-implantation for Valve-sparing Aortic Root Replacement
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Transcatheter Aortic and Mitral Valve Replacements.

Ryan Wilson1, Charis McNabney2, Jonathan R Weir-McCall2

  • 1Department of Radiology, Vancouver General Hospital, University of British Columbia, 899 West 12th Avenue, Vancouver, British Columbia V5Z1M9, Canada.

Radiologic Clinics of North America
|November 21, 2018
PubMed
Summary
This summary is machine-generated.

Computed tomography (CT) is crucial for transcatheter heart valve procedures, aiding device selection and assessing outcomes. This imaging technique enhances procedural success for transcatheter aortic valve repair (TAVR) and transcatheter mitral valve replacement (TMVR).

Keywords:
Computed tomographyTranscatheter aortic valve replacementTranscatheter mitral valve repairValve in valve

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Area of Science:

  • Cardiovascular Imaging
  • Medical Technology
  • Interventional Cardiology

Background:

  • Transcatheter valvular interventions are rapidly advancing.
  • Computed tomography (CT) is a key noninvasive imaging tool in this field.
  • CT supports multiple stages of transcatheter heart valve procedures.

Purpose of the Study:

  • To provide an overview of CT's role in transcatheter aortic valve repair (TAVR).
  • To detail CT's utility in transcatheter mitral valve replacement (TMVR).
  • To highlight how CT enhances procedural success and efficacy.

Main Methods:

  • Utilizing CT for three-dimensional assessment of the aortic and mitral annuli.
  • Employing CT for device selection and preprocedural planning.
  • Using postprocedural CT for success documentation and complication evaluation.

Main Results:

  • CT enables precise device selection and sizing for prosthetic deployment.
  • CT facilitates accurate preprocedural prediction angles.
  • Postprocedural CT confirms prosthesis positioning and identifies complications.

Conclusions:

  • CT is integral to successful transcatheter aortic valve repair (TAVR) and transcatheter mitral valve replacement (TMVR).
  • CT imaging improves patient outcomes by optimizing device selection and procedural monitoring.
  • The comprehensive assessment provided by CT enhances the efficacy of transcatheter valve interventions.