6 doctors weighed in:
Is there a major difference between cow and pig heart valves for replacement?
6 doctors weighed in

Dr. Scott Mackinnon
Anesthesiology
3 doctors agree
In brief: Not really
Both offer the advantage of not requiring "blood thinning" on a long term basis.
Unlike a "mechanical" valve, cow and pig don't last longer than 7-12 years(with a few exceptions). Otherwise, the outcomes in both valves are generally the same and for all intents and purposes, either one is a reasonable choice in a patient who does not desire blood thinning.

In brief: Not really
Both offer the advantage of not requiring "blood thinning" on a long term basis.
Unlike a "mechanical" valve, cow and pig don't last longer than 7-12 years(with a few exceptions). Otherwise, the outcomes in both valves are generally the same and for all intents and purposes, either one is a reasonable choice in a patient who does not desire blood thinning.
Dr. Scott Mackinnon
Dr. Scott Mackinnon
Thank
Dr. John Fung
Surgery
1 doctor agrees
In brief: Probably not
Porcine tissue valves are made from actual pig heart valves while bovine valves are constructed from cow pericardium. The decision of which to use is often by surgeon's preference.
In a recent european study, longer followup of bovine valve appeared to have some benefits over the pig valve (dalmau et al: http://www.Ncbi.Nlm.Nih.Gov/pubmed/21193320). You should discuss this with your surgeon.

In brief: Probably not
Porcine tissue valves are made from actual pig heart valves while bovine valves are constructed from cow pericardium. The decision of which to use is often by surgeon's preference.
In a recent european study, longer followup of bovine valve appeared to have some benefits over the pig valve (dalmau et al: http://www.Ncbi.Nlm.Nih.Gov/pubmed/21193320). You should discuss this with your surgeon.
Dr. John Fung
Dr. John Fung
Thank
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