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Mechanical valve thrombosis: Current management and differences between guidelines.

Adela Serban1, Dana Gavan2, Diana Pepine2

  • 1Department of Cardiology, Heart Institute Niculae Stăncioiu, Cluj-Napoca, Romania; 5th Department of Internal Medicine, Iuliu Haţieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania.

Trends in Cardiovascular Medicine
|July 27, 2023
PubMed
Summary

Mechanical valve thrombosis (MVT) management is complex, often requiring tailored antithrombotic therapy. This review compares guidelines and proposes a pragmatic algorithm for optimizing MVT treatment strategies.

Keywords:
Mechanical prosthesisMechanical valveValve thrombosis

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Area of Science:

  • Cardiovascular Medicine
  • Biomaterials Science

Background:

  • Foreign bodies in the circulatory system, like mechanical heart valves, are prone to thrombosis.
  • Adequate anticoagulation is crucial for the long-term durability of prosthetic valves, preventing complications like mechanical valve thrombosis (MVT).
  • Suboptimal anticoagulation is the primary cause of MVT.

Purpose of the Study:

  • To compare European and American guidelines for MVT management.
  • To identify evidence gaps and recent studies.
  • To propose a pragmatic algorithm for MVT treatment and highlight research directions.

Main Methods:

  • Comparative analysis of existing clinical guidelines.
  • Review of recent studies and clinical evidence on MVT.
  • Development of a consolidated treatment algorithm.

Main Results:

  • MVT management strategies vary based on clinical presentation (obstructive vs. non-obstructive) and patient condition.
  • Treatment options include surgery, thrombolysis, and optimized anticoagulation, with choices influenced by surgical risk and contraindications.
  • Pannus formation requires surgical intervention.

Conclusions:

  • MVT management is complex, with treatment indications intersecting based on patient status and institutional expertise.
  • Existing guidelines present subtle differences, necessitating a pragmatic approach.
  • Further research is needed to refine MVT management strategies.