Q. All of the following are relative contraindications of mechanical prosthetic valve except?
A. Long expected lifetime
B. Unreliable anticoagution therapy
C. Pregnancy
D. Previous thormbosed valve
Answer: A. Long expected lifetime
Explanation:
Long expected lifetime is an indication for mechanical prosthetic valve as bioprosthetic valve gets degenerated in 10-15 years.
Mechanical prosthetic valves have a high risk of valve thrombosis and hence require lifelong anticoagulation. Anticoagulation becomes problematic in pregnancy. And, previous history of valve thrombosis increases the risk of recurrent valve thrombosis.
A. Long expected lifetime
B. Unreliable anticoagution therapy
C. Pregnancy
D. Previous thormbosed valve
Answer: A. Long expected lifetime
Explanation:
Long expected lifetime is an indication for mechanical prosthetic valve as bioprosthetic valve gets degenerated in 10-15 years.
Mechanical prosthetic valves have a high risk of valve thrombosis and hence require lifelong anticoagulation. Anticoagulation becomes problematic in pregnancy. And, previous history of valve thrombosis increases the risk of recurrent valve thrombosis.
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