Valve Leaflet Prolapse
Valve Leaflet Prolapse - Related Videos
11:12
Protocol for Relative Hydrodynamic Assessment of Tri-leaflet Polymer Valves
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Cited by 5 •
2013
There has been renewed interest in developing polymer valves. Here, the objectives are to demonstrate the feasibility of modifying a commercial pulse duplicator to accommodate tri-leaflet geometries and to define a protocol to present polymer valve hydrodynamic data in comparison to native and prosthetic valve data collected under near-identical conditions.
01:27
Mitral Valve Prolapse I: Introduction
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2025
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...
01:22
Mitral Valve Prolapse II: Assessment and Management
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2025
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 tachycardia.
01:19
Mitral Valve Prolapse III: Nursing Management
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2025
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...
08:55
Isolation and Characterization of Primary Rat Valve Interstitial Cells: A New Model to Study Aortic Valve Calcification
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Cited by 16 •
2017
This protocol describes the isolation, culture, and calcification of rat-derived valve interstitial cells, a highly physiological in vitro model of calcific aortic valve disease (CAVD). Exploitation of this rat model facilitates CAVD research in exploring the cell and molecular mechanisms that underlie this complex pathological process.
FAQs
Leaflet stability depends on coordinated support from the chordae tendineae and papillary muscles. When these structures become elongated, weakened, or disrupted, the leaflet may move excessively during closure rather than maintaining its intended position. This loss of support can prevent effective coaptation, or leaflet contact, and creates the structural basis for backward blood flow.
Incomplete valve closure permits regurgitation, meaning blood moves backward instead of remaining directed forward. The resulting abnormal flow can increase the workload on the heart and may eventually be associated with ventricular effects or cardiac remodeling. These changes matter clinically because they help determine whether observation remains appropriate or whether intervention should be considered.
Clinical significance depends not only on the abnormal leaflet motion but also on the amount of associated regurgitation, the presence of symptoms, and evidence of ventricular effects or remodeling. A prolapse that produces limited backward flow may be managed differently from one associated with substantial regurgitation or progressive cardiac changes, making severity assessment essential to clinical decisions.
Echocardiography identifies abnormal leaflet motion and shows whether a leaflet bows or displaces during closure. It also helps assess associated regurgitation and evaluate effects on the ventricles. By combining structural and functional information, this examination supports clinical assessment, helps track changes over time, and provides evidence for deciding between continued monitoring and treatment.
After detection, clinical evaluation considers symptoms, the severity of backward flow, and whether ventricular effects or cardiac remodeling have developed. These findings help clinicians determine an appropriate course, which may include monitoring when changes are limited or escalation toward valve treatment when regurgitation, symptoms, or cardiac consequences become significant.
Valve repair or replacement may be considered when backward flow becomes severe, when symptoms develop, or when cardiac remodeling and other ventricular effects indicate that the heart is being affected. The decision follows clinical evaluation rather than the presence of prolapse alone. Echocardiographic findings provide important evidence for judging severity and treatment need.