Heart Valve Replacement Surgery (AVR, MVR, DVR)
Heart valve replacement surgery is a procedure performed to treat heart valve disease, a condition characterized by damage or dysfunction of one or more of the heart’s four valves: the aortic valve, mitral valve, tricuspid valve, and pulmonary valve. When a valve becomes diseased, it can cause symptoms such as shortness of breath, chest pain, fatigue, and fainting spells. Severe valve disease can lead to heart failure and other serious complications. Here’s everything you need to know about heart valve replacement surgery, including the types of replacements:
Types of Heart Valve Replacement Surgery:
Aortic Valve Replacement (AVR):
- The aortic valve controls blood flow from the heart’s left ventricle to the aorta, the main artery that carries oxygen-rich blood to the body.
- AVR is performed to replace a damaged or diseased aortic valve with a mechanical valve or a bioprosthetic valve (tissue valve).
- Mechanical valves are made of durable materials such as metal or carbon and typically last a lifetime but require lifelong anticoagulant medication to prevent blood clots.
- Bioprosthetic valves are made from animal tissue (such as porcine or bovine) or human tissue (from cadavers). They do not require lifelong anticoagulant therapy but may need replacement after 10-15 years.
Mitral Valve Replacement (MVR):
- The mitral valve regulates blood flow between the left atrium and the left ventricle of the heart.
- MVR involves replacing a diseased or malfunctioning mitral valve with either a mechanical or bioprosthetic valve.
- Similar considerations regarding valve type and anticoagulation therapy apply as with AVR.
Double Valve Replacement (DVR):
- In some cases, both the aortic and mitral valves may be damaged or diseased, necessitating a double valve replacement.
- DVR involves the simultaneous replacement of both the aortic and mitral valves.
Recovery:
- Hospital Stay: Patients typically spend several days in the hospital following heart valve replacement surgery.
- Rehabilitation: Cardiac rehabilitation programs may be recommended to help patients recover strength and endurance gradually.
- Medications: Patients may be prescribed medications to prevent blood clots, control heart rhythm, and manage other symptoms.
- Lifestyle Changes: Adopting a heart-healthy lifestyle, including regular exercise, a balanced diet, smoking cessation, and stress management, is important for long-term recovery and overall heart health.
Heart valve replacement surgery can significantly improve quality of life and prognosis for patients with severe heart valve disease. However, it is a major surgical procedure with potential risks and requires careful consideration by both patients and their healthcare providers. The choice of valve type (mechanical vs. bioprosthetic) depends on various factors, including the patient’s age, overall health, lifestyle, and preferences, and should be discussed thoroughly with the cardiac surgeon.