US oocyte donors: a retrospective study of

advertisement
1
1
A Retrospective Study of Oocyte Donors in the United States
2
by
3
4
Wendy Kramer and Jennifer Schneider M.D.
5
6
7
8
Wendy Kramer
9
Donor Sibling Registry
10
P. O. Box 1571
11
Nederland, CO 80466 U.S.A.
12
www.donorsiblingregistry.com
13
14
15
Jennifer Schneider, M.D., Ph.D.
16
Arizona Community Physicians
17
1500 North Wilmot, Suite B-250
18
Tucson, AZ 85712 U.S.A.
19
20
21
22
23
2
24
25
OPENING SLIDE
26
27
Increasingly, more women are delaying having children until their 40’s,
28
thereby decreasing their chances of becoming pregnant. With the upsurge in
29
the number of women seeking to have children through in vitro fertilization
30
(IVF), now supplemented by a growing interest in oocytes for stem-cell
31
research, the demand for human eggs threatens to exceed supply. Young
32
women are being recruited to become egg donors with the offer of large
33
sums of money, typically $8-25,000 per egg retrieval cycle, but at times up
34
to $100,000 in the US. In addition, clinics are now reporting a surge in egg
35
donors as a way to deal with the recent economic downturn. Many of the
36
couples seeking egg donors are from Europe, where paying for such services
37
is illegal and waits can stretch for many years. (Wall Street Journal 12/9/08)
38
INTRODUCTION
39
Some 100,000 young women have sold or donated their eggs to
40
approximately 470 IVF clinics in the US (Schneider, 2008). After egg
41
retrieval, they are discharged from the IVF clinic but are rarely contacted
42
afterwards. Consequently, there has been a dearth of studies of both short
43
and long-term adverse consequences of ovarian stimulation and egg
44
donation. In addition, only a few published studies have considered the
45
emotional and psychological effects of egg donation on donors, their
46
interest in learning about the outcomes of the pregnancies, or their
3
47
willingness to be contacted by recipient families. To help remedy this lack
48
of information, we undertook a retrospective study of 155 egg donors, many
49
of them many years after egg retrieval.
50
51
Methods
52
To learn more about women’s experiences, medical outcomes, and attitudes
53
regarding their egg donations, we constructed 25 questions and placed
54
them on the website of Donor Sibling Registry (DSR), a US based worldwide
55
registry, that helps donor-conceived individuals search for and contact their
56
donor and/or their half siblings, as well as supplies support, news, and
57
education for parents and former donors.
58
59
RESULTS
60
Of the 287 egg donors registered on the DSR with valid email addresses, the
61
155 respondents reflected a response rate of 49.1%. The respondent’s mean
62
age at the time of the first donation was 26.4 years old. The mean number
63
of egg cycles per respondent was 2.9. Before egg donation, 43.2% had had
64
at least one child, and after donation, 36.1% of the 155 women had had at
65
least one (or one more) child. In addition, eight respondents were pregnant
66
at the time they completed the survey. Thus, we have a large group of
67
former egg donors who provided relatively long-term follow-up.
68
MEDICAL ISSUES
4
69
Our table summarizes the reported complications following egg donation
70
both immediately and later. We can see that forty-one reported infertility
71
and/or menstrual cycle changes. Of the 17 women reporting some type of
72
new infertility problem (inability to conceive, delay in conceiving, or one or
73
more miscarriages), 12 had had no children before egg donation; only 1 of
74
these was pregnant (after IVF with her own eggs) while no others had
75
children after the egg cycle(s), despite trying to conceive. One of these was
76
told at age 27 she was “transitioning into menopause.” Others developed
77
endometriosis or ovarian cysts and could not get pregnant. Since the
78
majority had not tried for pregnancy before the egg donation, one cannot
79
say how many of them may have had prior unrecognized infertility problems.
80
Another unknown is whether one or multiple miscarriages had any relation
81
to the ovarian stimulation. All 5 of the women who reported new infertility
82
problems and who had given birth before ovarian stimulation eventually had
83
a child after, although some needed up to 6 months of fertility treatments.
84
85
Several respondents reported that when they developed medical problems shortly after
86
egg retrieval, the fertility clinic was less than helpful. Reports included: difficulty in
87
getting in touch with the clinic after hours; overt resentment by a particular physician
88
who had had to come in over the weekend, inadequate information about OHSS such that
89
the patient didn’t recognize the symptoms until she was very ill and went to see her
90
physician; and a patient who had complications resulting from OHSS-related
5
91
paracentesis, required hospitalization and surgery by her gynaecologist, and was never
92
contacted by the IVF clinic.
93
94
95
96
MEDICAL FOLLOW-UP
97
In regards to follow-up by IVF clinics about late-developing medical problems
98
in egg donors:
99
Only four respondents (2.6%) reported that their clinic had initiated contact
100
with them to in order to update their medical information.
101
When asked about whether there were medical changes that the egg
102
recipient should be informed of if possible, 34.2% (53/155) of respondents
103
answered “yes” with these problems listed.
104
105
EDUCATION
106
Education about potential medical complications
107
The survey asked former egg donors, “Is there anything you wish you had
108
been informed of prior to your donations to better prepare you in making
109
your decisions?” 38.8% wished they had received additional information. 14%
110
citing medical concerns. These included: the side-effects of ovarian
111
stimulation; the risks of OHSS; and the potential long-term side effects of the
112
drugs they had taken, in particular infertility and cancer.
113
6
114
CONTACT WITH FERTILITY CLINIC
115
Contacts with the fertility clinic about medical issues
116
IVF clinics need carefully to educate donors about the importance of
117
contacting them to give medical and genetic updates
118
In this study, a significant minority of donors had not, and were not planning
119
to contact the IVF clinic if they had relevant medical information, because
120
they didn’t recognize the value of this step.
121
Of the 53 respondents who had reported new medical conditions that they
122
thought might be of interest to the recipients, 58.5% attempted to contact
123
their fertility center to update them. Several reported a negative outcomes
124
such as a missing or destroyed chart; a clinic that had gone out of business
125
or had relocated and couldn’t be found; and a clinic that declined to notify
126
the recipients on the basis of anonymity.
127
128
Another question asked whether the recipient would contact the IVF clinic in
129
the future to convey “any medical or genetic problems that the recipient
130
families should know of.” 66.4% simply said yes. 8.4% said they hadn’t ever
131
thought about it until now; 4 wrote they didn’t realize they were supposed
132
to or were permitted to contact the clinic with information; 7 said the clinic
133
was closed or they couldn’t contact it; 2 wrote that they were told their
134
donations were anonymous or that any contact would not be welcome.
135
Seven answered “maybe” – if they thought their medical problem was
7
136
genetic or severe. The remaining responses included, “Why worry the
137
parents?” “I doubt they’d tell the families anyway.” And, “I had a full genetic
138
screening at the time of donation, so there’s no need.”
139
140
Learning of the presence of breast cancer or colon cancer in the family will
141
lead to earlier screening of the children. Learning that the egg donor may be
142
a carrier of a serious genetic disease such as cystic fibrosis will lead to the
143
testing of the child, thus providing information that the child may later find
144
important in his or her own decision-making about having children.
145
146
INFO ABOUT PREGNANCIES
147
Information about pregnancies and births
148
As most oocyte donations in the United States are anonymous, most egg
149
donors do not know who the recipients are and do not have contact with
150
them. Many IVF clinics will not provide information to egg donors about
151
whether a live birth resulted from the donor’s eggs, and some won’t even
152
notify them whether a pregnancy has resulted.
153
When asked, “Do you know whether any of your donations resulted in
154
pregnancy, a birth, etc?” approximately half of the 155 donors responded
155
affirmatively. To the question, “Have you asked your fertility center if there
156
were successful births?” again, 49% replied “yes,” and only half of them were
8
157
provided with the information they sought. The others were most often told
158
that it was against the clinic’s policy to release any information.
159
Among the 49.7% of respondents who did not attempt to contact the clinic
160
to learn about births, the most common reason was that they had been told
161
up-front that such information would not be available to them. “I was told
162
that everything is kept confidential.” “It was strictly anonymous.” It is evident
163
that many egg donors are curious about their genetic offspring. In answer to
164
the question, “Is there anything you wish you had been informed of prior to
165
your donations to better prepare you in making your decision?” 36.8% of the
166
egg donors replied “yes” and most of these focused on their desire to learn
167
about the children.
168
Looking back to the time when they donated , 33.6% recall being properly
169
educated and counseled on the possibility that their genetic offspring might
170
be curious and wish to meet their donors. The remaining 66.4% of donors
171
were not counseled on this issue, although many were told that there could
172
not be any contact.
173
Although none of the egg donors had been contacted, when asked, “Would
174
you be open to contact if it was requested, 151/155 respondents (97.4%)
175
wrote “yes,” with several answering “absolutely!” Four respondents were
176
uncertain. No respondent would refuse contact with recipients if it was
177
requested.
178
EMOTIONAL IMPACT
9
179
One area often omitted from counseling to donors is the emotional impact they may
180
experience, which may change with time, and the emotional impact on the donors’ own
181
children as well as the donor-conceived offspring. One respondent wrote that a photo of
182
the baby, who resembled her, made her realize for the first time that “egg donation is
183
not like donating blood and nothing more,” and that “an egg is not a mere cell.”
184
Another, now pregnant with her first child, wonders what she will tell her child about the
185
possible half-sibling, and when. Several women wrote of having many unanswered
186
questions about their genetic children and of regret at being unable to get answers.
187
Another wrote poignantly, “I wish I’d been told how much it hurts to know I can’t have a
188
child of my own, but that due to IVF Egg Donor Share I may have a child out there. That
189
if your IVF fails you may feel an empty feeling. One that after 10 years doesn’t go away.”
190
FUTURE CONTACT
191
In the future, egg donors who initially prize anonymity may want to have
192
more information and contact with their biological children. Donors need to
193
be offered adequate opportunities to think about the long-term impact that
194
donating might have on them, their family, the family of the child being born
195
and the child themselves. We found that the most common reason for
196
wanting contact with resulting offspring was that knowing about a
197
successful outcome would make them ‘feel good’. The next most common
198
reason was to protect their children from having a sexual relationship with a
199
half-sibling. Another reason was to be able to anticipate the possibility that
200
in the future the child might attempt to contact them .
10
201
REMAINING OOCYTES
202
Egg donors often give up all rights to all of their eggs, which belong to
203
the recipient couple. But in some cases they are not clearly told about
204
the fate of surplus eggs, and here are two responses regarding this
205
curiosity:
206
ADVERSE EFFECTS
207
This study supports previous reports of the prevalence of OHSS following
208
ovarian stimulation, now recognized as a common adverse effect. Much less
209
is known about long-term risks. The present study suggests a possible
210
adverse effect of hormonal stimulation on menstrual cycle or fertility in
211
some women. There is clearly a need for follow-up studies of fertility in egg
212
donors after egg retrieval, along with records of a careful gynecologic
213
history.
214
In recruiting potential egg donors, IVF clinics in the US tend to understate
215
the medical risks. Even when known risks are fully discussed, the
216
prospective donor will be informed that long-term risks are unknown; young
217
women may not clearly understand the difference between “there are no
218
risks” and “there are no known risks”. The results of this survey make it clear
219
that communication between egg donor and IVF clinic is often not
220
encouraged.
221
222
CONCLUSIONS AND RECOMENDATIONS
11
223
We recommend that IVF clinics incorporate several procedures early on,
224
around the time of egg retrieval:
225
1. Clinics need to maintain donor records and to develop protocols to
226
contact the donors regularly to update medical information of interest to
227
recipients.
228
2. The clinic needs to educate the egg donors about the importance of
229
contacting the IVF clinic, even years later, to provide such information.
230
Most people do not have sufficient knowledge of the contribution of genetics
231
to various medical diagnoses to make this determination themselves.
232
3. Clinics need to maintain medical records indefinitely. Donors need to be
233
notified if any IVF-conceived children are born with genetic abnormalities or
234
potentially inherited diseases as the woman may already have or someday
235
want to have children of her own.
236
4. Former egg donors should themselves be able to access critical
237
information from the clinic, even years later. If an egg donor does contact
238
the clinic with relevant information, the clinic needs to be able to contact the
239
recipient family with the information.
240
5. Egg donors as well as recipients, and eventually egg donor children
241
should be made aware of the current on-line vehicle for updating and
242
sharing medical information.
12
243
6. The fertility clinic needs to consider the needs of IVF conceived children
244
Reproductive specialists are highly focused on successful births.
245
Paradoxically, it is evident from the results of this survey that fertility clinics
246
pay little attention to the welfare of the children who result from successful
247
ART. This is evident in several areas:
248

The finding that 97% of respondents were never contacted by the
249
fertility clinic for medical updates ignores the relevance of some
250
medical problems in the biological parent to their children in terms of
251
monitoring and follow-up.
252

The reports by several egg donors of lost or destroyed records or
253
fertility clinics closed or relocated so that the egg donors could not
254
reach them to update information.
255

Many donors were flatly told they would never be able to contact these
256
children or even learn whether any were born. They were rarely
257
informed about the possible curiosity of these children as they get
258
older, nor their need to have access to the updated medical history of
259
their biological mother.
260
7. Need for disclosure about the potential uses of left-over oocytes
261
262
Currently the primary focus of fertility clinics is to serve the needs of
263
infertile women by maximizing the likelihood of a successful
13
264
pregnancy. Egg donors and their IVF-conceived children have received
265
scant attention from the clinic, and their needs and future health risks
266
are rarely considered. The results of this study reinforce the need for a
267
shift in values of IVF clinics, to where appropriate attention is given to
268
the health and safety of the egg donors. It is high time that the ART
269
field consider the long-term consequences for egg donors of donating
270
their oocytes and to also recognize the needs of donor-conceived
271
children.
272
273
Download