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Related Concept Videos

Mitral Valve Prolapse I: Introduction01:27

Mitral Valve Prolapse I: Introduction

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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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.
Mitral Regurgitation III: Medical Management01:25

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Mitral regurgitation (MR) is characterized by retrograde blood circulation from the left ventricle into the left atrium due to inadequate mitral valve closure. The severity of the condition, symptoms, and underlying cause determine treatment strategies.Monitoring and Pharmacological TreatmentPatients with mild to moderate MR typically do not need immediate intervention but regular monitoring to assess progression and guide treatment. Patients with mild MR should have an echocardiogram every 3-5...
Mitral Stenosis III: Medical Management01:26

Mitral Stenosis III: Medical Management

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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Protocol for Relative Hydrodynamic Assessment of Tri-leaflet Polymer Valves
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Tricuspid valve replacement: bioprostheses are preferable.

M J Dalrymple-Hay1, Y Leung, S K Ohri

  • 1Wessex Cardiothoracic Centre, Southampton General Hospital, United Kingdom.

The Journal of Heart Valve Disease
|January 1, 2000
PubMed
Summary

Bioprosthetic valves are recommended for tricuspid valve replacement (TVR) due to better durability and lower reoperation rates compared to mechanical valves. This study analyzed outcomes in 87 patients undergoing TVR.

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Area of Science:

  • Cardiovascular Surgery
  • Prosthetic Valve Research
  • Cardiac Valve Repair and Replacement

Background:

  • Tricuspid valve replacement (TVR) is infrequently performed, with limited data available on patient outcomes.
  • Surgeons often favor conservative tricuspid valve procedures over replacement.

Purpose of the Study:

  • To analyze the early and late results of tricuspid valve replacement (TVR).
  • To compare outcomes between tissue and mechanical prostheses in TVR patients.

Main Methods:

  • Retrospective analysis of 87 patients who underwent TVR between 1973 and 1996.
  • Included patients with tissue valves (n=52) and mechanical prostheses (n=35).
  • Total follow-up was 707 patient-years, with a mean follow-up of 8.1 years.

Main Results:

  • Early (30-day) mortality was 10.3%, with no significant difference between tissue and mechanical valves.
  • Long-term survival rates at 5, 10, and 15 years were 68%, 52%, and 35%, respectively.
  • Freedom from reoperation was higher for tissue valves (97% at 5 years) compared to mechanical valves (86% at 5 years), with mechanical valves requiring earlier reoperation.

Conclusions:

  • Bioprosthetic valves are recommended for the tricuspid position due to superior initial durability.
  • Lower reoperation rates associated with tissue valves support their use in tricuspid valve replacement.
  • Mechanical prostheses showed a higher incidence of reoperation, particularly for thrombosis and pannus ingrowth.