Yes, they both did about the same and both had a very low number of events.Hello,
There is actually a recent randomised control trial to answer the On-X vs St Jude question.
It concludes: 'The On-X valve and St Jude Medical valve performed equally well in the study with no differences found.'.
Now this was only over a 5-year time period. Only the St Jude has studies with 35+ years, since it has been around since 1980.
I hope that this helps.
It is important to note the INR ranges used for both St Jude and On-x.
For aortic valves: INR of 2.2 to 2.8
For mitral valves: INR of 2.5 to 3.5.
On-x is a great valve, but many in the field believe that their promotion of INR of 1.5-2.0 is dangerous.