Heart & Cardiology/biological valves


QUESTION: Hello doctor,my father is 56 yrs old and need an aortic valve transpalnt for AI.I wanted to ask dat at dis age which valve will be gud for him,tissue one or metallic one.i also wanted to know wat is d average life of a gud quality biological valve.At sm places i hv read 10 yrs while at sm 15 and sm even say 20yrs.I am really confused,please help.thank u.

ANSWER: Hello Amrita,

Biologic valves probably best for a 56 year old.  They last at least 10 years, probably 15 or 20, and don't require permanent anticoagulation to prevent clots.

Please write back if this note doesn’t answer all your questions.

David Richardson

---------- FOLLOW-UP ----------

QUESTION: thank you doctor,tissue valves r definitely better option as far as risks of using anticoagulants r concerned,bt i had sm other doubts abt it like-1)wat about d side effects of tissues valves,do de cause tissues reaction or rejection as de r foreign proteins forcing d recipient for immunocompression.
2)in about hw much tym tissue valves start getting hardened or fibrotic.......wat if it starts very early n also wat if de get infected n get dysfunctional(dese problems won't be dere in metallic ones)
3)stented tissue valve is better or stentless one
4)if we opt for metallic one n hv to use anticoagulants den r dere chances of ny internal haemorrhage also(may be like in cerebral arteries due to HTN or in anal canal due to constipation etc.)

plz reply.....thank you

Hello Amrika,

1) No tissue reaction or rejection.  The valves are treated so they are biologically inert.
2) Tissue valves last for 7 to 10 years or longer before hardening.
3) I don't think there's much difference.
4( Yes, some chance of internal hemorrhage, usually brain or intestine.  Rare if one is careful with the anticoagulant.

Please write back if this note doesn’t answer all your questions.

David Richardson

Heart & Cardiology

All Answers

Answers by Expert:

Ask Experts


David Richardson


Adult heart function and disease. Not very good about children lesss than 12. Hypertension is o.k. Heart rhythm a special interest.


Certified in cardiology by the American Board of Internal Medicine. Was chairman of division of cardiology at the Medical College of Virginia. Am now mostly retired.

Fellow of American Heart Association and American College of Cardiology and member of American Physiological Society..

Circulation, American Heart Journal, Hypertension.

M.D. from Harvard Medical School. Residency training at Yale Uhniversity School of Medicine and Medical College of Virginia.

Awards and Honors
Gold Heartt Award from American Heart Association in 1995.

©2016 About.com. All rights reserved.