Anonymous Donor Egg
The following tables show success rates for IVF with Anonymous Donor Egg (OVA)
The key to undestanding these tables
January - December 2007
| Age* |
Stimulations |
Retrievals |
Transfers |
Pregnancies |
Pregnant / Stimulation |
Pregnant / Retrieval |
Pregnant / Transfer |
| < 30 |
0 |
0 |
0 |
0 |
N/A |
N/A |
N/A |
| 31 - 34 |
0 |
0 |
0 |
0 |
N/A |
N/A |
N/A |
| 35 - 39 |
9 |
8 |
8 |
6 |
67% |
75% |
75% |
| > 40 |
36 |
33 |
33 |
23 |
64% |
70% |
70% |
| Total |
45 |
41 |
41 |
29 |
64% |
71% |
71% |
January - December 2006
| Age* |
Stimulations |
Retrievals |
Transfers |
Pregnancies |
Pregnant / Stimulation |
Pregnant / Retrieval |
Pregnant / Transfer |
| < 30 |
0 |
0 |
0 |
0 |
N/A |
N/A |
N/A |
| 31 - 34 |
0 |
0 |
0 |
0 |
N/A |
N/A |
N/A |
| 35 - 39 |
13 |
13 |
12 |
12 |
92% |
92% |
100% |
| > 40 |
23 |
22 |
22 |
15 |
65% |
68% |
68% |
| Total |
36 |
35 |
34 |
27 |
75% |
77% |
79% |
January - December 2005
| Age* |
Stimulations |
Retrievals |
Transfers |
Pregnancies |
Pregnant / Stimulation |
Pregnant / Retrieval |
Pregnant / Transfer |
| < 30 |
1 |
1 |
1 |
1 |
100% |
100% |
100% |
| 31 - 34 |
2 |
2 |
2 |
2 |
100% |
100% |
100% |
| 35 - 39 |
3 |
3 |
3 |
2 |
67% |
67% |
67% |
| > 40 |
25 |
22 |
21 |
19 |
76% |
86% |
90% |
| Total |
31 |
28 |
27 |
24 |
77% |
86% |
89% |
January - December 2004
| Age* |
Stimulations |
Transfers |
Pregnancies |
Pregnant / Stimulation |
Pregnant / Transfer |
| < 30 |
0 |
0 |
0 |
0% |
0% |
| 31 - 34 |
1 |
1 |
1 |
100% |
100% |
| 35 - 39 |
10 |
8 |
6 |
60% |
75% |
| > 40 |
33 |
30 |
25 |
76% |
83% |
| Total |
44 |
39 |
32 |
73% |
82% |
*Age of recipient
Important note regarding Ova Donor Statistics:
In 2007, Dominion Fertility changed its cryopreservation program from the traditional "slow embryo freezing" method to the newer, more effective method called, "blastocyst vitrification." This change allowed us to offer elective single embryo transfer to many of our patients, and is reflected in the number of embryos transferred, which went from 2 to 1.8. This is a major breakthrough in our Ova Donor program because it allows?us to maintain?our high pregnancy rates and decrease the patient's chances for a twin pregnancy.
"Vitrification" is a newer method of embryo cryopreservation that has been shown in a number of studies to provide higher pregnancy rates than the older "slow method" of cryopreservation. In fact, the pregnancy rates for transferred fresh or vitrified embryos are indistinguishable. So, in 2007, many of our patients opted to undergo single?embryo transfer which may artificially decrease the apparent fresh embryo transfer pregnancy rate. Although the number of embryos transferred on average was 1.8 for 2007, our fresh embryo transfer ova donor pregnancy rate?remained statistically identical to our pregnancy rates achieved for the past 3 years. Ultimately, vitrification will allow us to maintain our high fresh IVF pregnancy rates,?but also increase the chance of getting pregnant (possibly?for a second time) from the embryos kept?in cryo-storage.??
Making miracles happen, one couple at a time