Cardiac valve reconstruction and replacement: a brief review.

Area of Science:

• Cardiovascular Surgery
• Radiology
• Biomedical Engineering

Background:

• Diseased cardiac valves impair function, necessitating surgical intervention.
• Surgical options include valve reconstruction (valvuloplasty) and valve replacement.
• Various prostheses (mechanical, biologic, homograft) and annuloplasty rings are utilized.

Purpose of the Study:

• To provide radiologists with an overview of cardiac valvular surgery techniques.
• To detail the radiographic appearances of different valve prostheses and annuloplasty rings.
• To outline the advantages and disadvantages of each surgical approach.

Main Methods:

• Review of surgical techniques for cardiac valve repair and replacement.
• Description of prosthetic devices: mechanical, biologic (porcine, bovine pericardium), and homografts.
• Explanation of annuloplasty ring function in restoring valve orifice geometry.

Main Results:

• Valve reconstruction primarily addresses incompetent mitral and tricuspid valves without requiring long-term anticoagulation.
• Mechanical prostheses offer durability but necessitate lifelong anticoagulation therapy.
• Biologic prostheses and homografts provide alternatives with different durability and anticoagulation profiles.

Conclusions:

• Radiologists must recognize the imaging characteristics of various cardiac valve prostheses and annuloplasty rings.
• Understanding the pros and cons of each surgical method is crucial for accurate interpretation and patient management.
• Familiarity with these devices aids in assessing surgical outcomes and potential complications.