Obstetric outcome in singletons after in vitro fertilization with cryopreserved/thawed embryos
(2012) In Human Reproduction 27(5). p.1343-1350- Abstract
- There is increasing use of cryopreservation in IVF. This study compared singletons born after cryopreservation with singletons born after fresh IVF cycles and singletons born to women in the general population. Data were collected for Swedish IVF treatments during the years 20022006. All singletons from single embryo transfer (SET) and double embryo transfer (DET) after cryopreserved (n 2348) and fresh cycles (n 8944) were included and cross-linked with the Swedish Medical Birth Registry and compared with all singletons born after spontaneous conception (n 571 914). Main outcomes were preterm and very preterm birth and low and very low birthweight (VLBW). Other outcomes were small for gestational age, large for gestational age (LGA),... (More)
- There is increasing use of cryopreservation in IVF. This study compared singletons born after cryopreservation with singletons born after fresh IVF cycles and singletons born to women in the general population. Data were collected for Swedish IVF treatments during the years 20022006. All singletons from single embryo transfer (SET) and double embryo transfer (DET) after cryopreserved (n 2348) and fresh cycles (n 8944) were included and cross-linked with the Swedish Medical Birth Registry and compared with all singletons born after spontaneous conception (n 571 914). Main outcomes were preterm and very preterm birth and low and very low birthweight (VLBW). Other outcomes were small for gestational age, large for gestational age (LGA), perinatal mortality and maternal outcomes. Singletons from cryopreserved SET/DET or cryopreserved SET had increased rates of extreme preterm birth compared with singletons from the general population. A lower rate of LBW was found for cryopreserved SET/DET singletons compared with singletons from fresh cycles; however, a higher rate of perinatal mortality was detected. The rates of LGA and macrosomia were increased for cryopreserved SET/DET singletons when compared with those from fresh cycles and the general population. For maternal outcomes, a higher rate of pre-eclampsia was noted for pregnancies from cryopreserved cycles compared with those from fresh cycles or the general population, but the rate of placenta praevia was lower in pregnancies from cryopreserved cycles compared with those from fresh cycles. The obstetric outcome of singletons after cryopreservation was slightly poorer when compared with the general population. In comparison with fresh cycles, the outcome varied. The finding of an increased rate of LGA after cryopreservation requires further study. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/2563235
- author
- Sazonova, Antonina ; Källén, Karin LU ; Thurin-Kjellberg, Ann ; Wennerholm, Ulla-Britt and Bergh, Christina
- organization
- publishing date
- 2012
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- IVF, singletons, cryopreservation, obstetric outcome
- in
- Human Reproduction
- volume
- 27
- issue
- 5
- pages
- 1343 - 1350
- publisher
- Oxford University Press
- external identifiers
-
- wos:000303161900014
- scopus:84860129066
- pmid:22362926
- ISSN
- 0268-1161
- DOI
- 10.1093/humrep/des036
- language
- English
- LU publication?
- yes
- id
- 99a792a7-96f9-44e5-8a31-d499badb6985 (old id 2563235)
- date added to LUP
- 2016-04-01 11:13:18
- date last changed
- 2022-04-20 17:50:55
@article{99a792a7-96f9-44e5-8a31-d499badb6985,
abstract = {{There is increasing use of cryopreservation in IVF. This study compared singletons born after cryopreservation with singletons born after fresh IVF cycles and singletons born to women in the general population. Data were collected for Swedish IVF treatments during the years 20022006. All singletons from single embryo transfer (SET) and double embryo transfer (DET) after cryopreserved (n 2348) and fresh cycles (n 8944) were included and cross-linked with the Swedish Medical Birth Registry and compared with all singletons born after spontaneous conception (n 571 914). Main outcomes were preterm and very preterm birth and low and very low birthweight (VLBW). Other outcomes were small for gestational age, large for gestational age (LGA), perinatal mortality and maternal outcomes. Singletons from cryopreserved SET/DET or cryopreserved SET had increased rates of extreme preterm birth compared with singletons from the general population. A lower rate of LBW was found for cryopreserved SET/DET singletons compared with singletons from fresh cycles; however, a higher rate of perinatal mortality was detected. The rates of LGA and macrosomia were increased for cryopreserved SET/DET singletons when compared with those from fresh cycles and the general population. For maternal outcomes, a higher rate of pre-eclampsia was noted for pregnancies from cryopreserved cycles compared with those from fresh cycles or the general population, but the rate of placenta praevia was lower in pregnancies from cryopreserved cycles compared with those from fresh cycles. The obstetric outcome of singletons after cryopreservation was slightly poorer when compared with the general population. In comparison with fresh cycles, the outcome varied. The finding of an increased rate of LGA after cryopreservation requires further study.}},
author = {{Sazonova, Antonina and Källén, Karin and Thurin-Kjellberg, Ann and Wennerholm, Ulla-Britt and Bergh, Christina}},
issn = {{0268-1161}},
keywords = {{IVF; singletons; cryopreservation; obstetric outcome}},
language = {{eng}},
number = {{5}},
pages = {{1343--1350}},
publisher = {{Oxford University Press}},
series = {{Human Reproduction}},
title = {{Obstetric outcome in singletons after in vitro fertilization with cryopreserved/thawed embryos}},
url = {{http://dx.doi.org/10.1093/humrep/des036}},
doi = {{10.1093/humrep/des036}},
volume = {{27}},
year = {{2012}},
}