The full article from the First Link came up without the requirement of a subscription.
The graphs in this article are pretty interesting! (See Below)
The Second and Third Links do require a subscription. Sorry about that.
You might be able to see copies of the Journals at an appropriate Library.
'AL C'
From the First Paper which is a comparison of Structural Valve Deterioration (SVD) of Allograft (human) and Pericardial (Bovine) Prostheses
(some or all of the authors from Cleveland Clinic),
For patients under age 50 at the time of replacement
Freedom from Explant is roughly (reading a graph without lines)
90% at 10 years
60% at 12 years (drops rapidly after 11 years) (Bovine and Allograph track closely out to 12 years.... no data after that for allografts)
20% at 18 years (slowly tapers off after 12 years)
For patients age 50 to 60 at the time of replacement
Freedom from Explant is roughly interpreted from graph as
90% at 10 years
80% at 11 years
75% at 12 years
60% at 15 years
40% at 18 years
For patients over age 60 at the time of replacement
Freedom from Explant is roughly interpreted from the graph as
95% at 10 years
90% at 12 years
85% at 14 years
80% at 18 years
Note that there is likely some variation around each of those points.
See the original article for explanations and illustrations.
Since the person who started the thread is 35 now,and wants a mechancal valve, I hate hijacking this thread with all this data so will just mention
The First article, is the one I keep posting, since it started in 1981. It is all from CCF
Don't forget the <50 group is a pretty big range, 1/2 of the people were less than 40 years old for the perimount and MOST were younger than 30 for the allo which makes it hard to see what is average for each decade 20s, 30s, 40 ect of course the under 30 will bring down the numbers for the 40- 50
Table 1 (I'm typing this from the chart so hope it shows up in rows (at least I tried )
bovine Allo
<30 5 47
30-40 19 21
40-50 27 27
then for the other groups since people might be interested since I putt the other ages
50-60 87 203
60-70 185 98
>70 155 37
ps The reason the reason there is no data for the allographs after a certain number of years, is because they weren't studied as long (in THIS study) as the perimount .
"Methods: From 1981 to 1985, 478 patients received pericardial prostheses during
premarket approval; from 1987 to 2000, 744 patients received cryopreserved allografts.
Mean age of patients receiving allografts was 49 12 years, and that of those
receiving pericardial prostheses was 65 11 years; pericardial valves were used in
138 patients younger than age 60. Mean follow-up was 15 5.1 years for
pericardial valves (4674 patient-years of follow-up) and 5.6 3.1 years for
allografts (3892 patient years of follow-up)."
Sorry edjspi
As far as REDOs, The fact you are young and don't have alot of other medical problems and are in really good shape going into this surgery all play into your chances of having a good recovery. (with a surgeon who has experience with REDOS)
I hope it helps to know that quite a few people (even members here) had a better recovery for their 2nd or 3rd OHS than they did their 1st. Maybe partly because they were being watched and were in better shape going into their REDOS? My son's 4th OHS was his shortest hospital stay and easiest recovery. Even his 5th he was out of CICU the next day and home in 4 days (he was re-admitted 10 days post op for a sternal infection, but that could happen no matter what surgery it is 1st or 6th)
Now of course the surgery WAS much tougher on his surgeon, but thats why you go to the experienced ones.