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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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Mitral Stenosis IV: Nursing Management01:27

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A comprehensive nursing assessment is essential for patients with valvular heart disease, which involves any dysfunction of the heart valves that could impact blood flow and overall heart function.Subjective Data Collection:Chief Complaint and Present Illness: Start with the patient's primary concerns, focusing on the onset, duration, and progression of cardiac symptoms such as dyspnea, fatigue, chest pain, and palpitations.Past Medical History: Collect detailed information on any previous...
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Mitral Stenosis III: Medical Management01:26

Mitral Stenosis III: Medical Management

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Mitral stenosis, a condition marked by the narrowing of the mitral valve, necessitates an integrated approach for effective management. This approach includes preventative measures, medical therapy, and surgical interventions to reduce symptoms and prevent complications.PreventionPrevention of mitral stenosis primarily focuses on reducing the incidence of bacterial infections, particularly streptococcal infections, which can lead to rheumatic fever and subsequent valvular damage. Timely...
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Mitral Valve Prolapse I: Introduction01:27

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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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Aortic Regurgitation I: Introduction01:15

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IntroductionAortic regurgitation is characterized by the backward flow of blood from the aorta into the left ventricle during diastole and arises from the improper closure of the aortic valve. This condition results in left ventricular volume overload and can stem from both acute and chronic etiologies, each contributing uniquely to the disease's progression and symptomatology.Acute and Chronic CausesAcute aortic regurgitation often results from events that suddenly impair the integrity of 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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Protocol for Relative Hydrodynamic Assessment of Tri-leaflet Polymer Valves
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Current knowledge and future perspectives regarding stented valves.

Giuseppe Santarpino1, Jurij M Kalisnik, Theodor Fischlein

  • 1Department of Cardiac Surgery, Klinikum Nürnberg, Paracelsus Medical University, Nuremberg, Germany - giuseppe.santarpino@klinikum-nuernberg.de.

Minerva Cardioangiologica
|August 31, 2016
PubMed
Summary
This summary is machine-generated.

This review compares four leading stented aortic bioprostheses, including the LivaNova Crown PRT and Edwards Perimount Magna Ease. It examines manufacturer data against scientific literature for these advanced heart valve replacements.

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Area of Science:

  • Cardiovascular Surgery
  • Biomaterials Science
  • Medical Device Engineering

Background:

  • Aortic valve bioprostheses are increasingly used, even in younger patients, due to benefits like avoiding anticoagulation and improving quality of life.
  • The rising demand for biological valves has spurred the development of various stented bioprosthesis designs.

Purpose of the Study:

  • To detail the specific features of four prominent stented aortic bioprosthesis models.
  • To critically compare manufacturer-provided specifications with findings from existing scientific literature.

Main Methods:

  • Review of technical specifications for four leading stented aortic bioprostheses: LivaNova Crown PRT, St. Jude Medical Trifecta, Edwards Lifesciences Perimount Magna Ease, and Medtronic Mosaic Ultra.
  • Comparative analysis of manufacturer claims against data reported in peer-reviewed scientific publications.

Main Results:

  • Detailed description of the design and features of each of the four bioprosthetic valve models.
  • Identification of discrepancies or consistencies between manufacturer data and published literature for hemodynamic performance, durability, and clinical outcomes.

Conclusions:

  • Provides a comprehensive overview of current stented aortic bioprostheses, aiding clinical decision-making.
  • Highlights the importance of validating manufacturer claims with independent scientific evidence for optimal patient care in aortic valve replacement.