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How long can blastocysts remain frozen?


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#1 Sleepless

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Posted 19 April 2010 - 05:24 PM

How long can blastocysts remain frozen and still be considered "good/great" for a FET?

Our blastocysts have been frozen for 4 years now and our clinic told us they are good frozen for 5 years, after that they can't say what the condition of the embryos will be.

Thanks!
Me 29 Dh 28
Dh cystic fibrosis
11 embryos
IVF/ICSI #1 June 05 BFN
FET #1 Sept 12th Chemical
FET#2 Nov 23rd Chemical
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PREGNANT W/ TWINS!!
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#2 baby2be

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Posted 19 April 2010 - 09:21 PM

I've heard that they don't have an exp. date. There are embies that have been frozen for longer and they did just fine with the thaw and growing. You should probably get a second opinion.

Good luck,
Dana
ME-30 DH-39
TTC 8 years
1st IVF May/June 2006- Chem pg
2 FETs-BFN
PCOS, Damaged Tubes
Tubes removed May 2007
2nd. IVF Oct/ Nov 2007- BFN
3rd. IVF Feb/ March 2008- BFN
3rd. FET July/ Aug 2008- BFP Beta 6dp5dt 9, 8dp5dt 45, 11dp5dt 131, 15dp5dt 971, 21dp5dt 3060
4th. FET July 29th, 2010.
BETA 5.5dp5dt 14.6, 7.5dp5dt 53.6,10.5dp5dt 149.4,17.5dp5dt 1902, 19.5dp5dt 3282
Ultrasound showed one little bean!!

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#3 Riley22

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Posted 21 April 2010 - 06:49 AM

Yes I am not sure about that- I did not think they have an exp date. I would assume it is longer than a few years.

Good Luck!
ME- 35 DH-35
TTC since November 2006

5 Failed IUI's
MFI Poor Motility

October / November 09- Cancelled IVF just before retreival due to high progesterone
Jan / Feb 2010 IVF/ICSI -9 fertilized -transfered one perfect blast
- BFN
March / April 2010 Natural FET - Transfered one blast- BFN

April 2010 Endo Biopsy done - No issues found
June 2010 Natural FET (2) 3 day Embryos BFN
September 2010 Natural FET- 2 Blasts - BFP!
Beta 64 @ 7dp5dt
Second Beta 9dp5dt 210
First ultrasound showed TWINS

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#4 smc

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Posted 28 April 2010 - 05:06 PM

Thanks for asking this question DH and I were wondering the same thing.
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#5 tabby

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Posted 28 April 2010 - 10:34 PM

As I understand it the problem is that it is relatively new technology so they aren't cases of >5 year-old embryos being thawed to know how they fare.
me: 41 dh:47
ttc from Sept 06
dx: endometriosis

Six clomid cycles including
two IUIs led to one pregnancy
that ended in m/c
IVF #1 in Jan/Feb 09 BFN
8 frosties

FET May 7, 09 BFP!!!
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August 20 (four months pg): It's a boy!
DS born February 4, 2010