ArticleIranian journal of reproductive medicine2014
Comparison of clinical outcomes between fresh embryo transfers and frozen-thawed embryo transfers.
Article in Iranian journal of reproductive medicine, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 1 of them a synthesis that pooled it.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
11 citing papers in PubMed, 1 synthesis or guideline pooled it, 14 citations in OpenAlex.
- Reduced Ectopic Pregnancy Rate on Day 5 Embryo Transfer Compared with Day 3: A Meta-Analysis.PloS one · 2017Pooled it
- Effect of Low-Dose Estradiol on the Clinical Pregnancy Rate of the Hormone Replacement Frozen-Thawed Embryo Transfer Cycle.International journal of women's health · 2026Article
- Comparative Outcomes of Day 3 and Day 5 Frozen-Thawed Embryo Transfers: A Retrospective Clinical Study.Biomedicines · 2025Article
- The relationship between serum oestrogen levels and clinical outcomes of hormone replacement therapy-frozen embryo transfer: a retrospective clinical study.BMC pregnancy and childbirth · 2022Article
- The effects of blastocyst morphological score and blastocoele re-expansion speed after warming on pregnancy outcomes.Clinical and experimental reproductive medicine · 2016Article
- Perinatal outcome in fresh versus frozen embryo transfer in ART cycles.International journal of reproductive biomedicine · 2016Article
- Ectopic pregnancy secondary to in vitro fertilisation-embryo transfer: pathogenic mechanisms and management strategies.Reproductive biology and endocrinology : RB&E · 2015Review
- Pregnancy in Older Women: Analysis of Outcomes in Pregnancies from Donor oocyteJournal of human reproductive sciencesArticle
- The Effect of Uterine Contractions on Fertility Outcomes in Frozen Embryo Transfer Cycles: A Cohort Study.Journal of reproduction & infertilityArticle
- Comparison of Outcomes of IVF Cycles Between Transferred Frozen Thawed Embryos and Fresh Embryos by a 2 Year Survey.Journal of reproduction & infertilityArticle
- Pregnancy outcomes and maternal and perinatal complications of pregnancies followingJournal of human reproductive sciencesArticle
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
4 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundAdvances in embryo culture technology and cryopreservation have led to a shift in in vitro fertilization (IVF) from early fresh or frozen-thawed cleavage embryo transfer to fresh or frozen-thawed blastocyst stage transfer.
objectiveTo compare the clinical outcomes of fresh embryo transfers and frozen-thawed embryo transfers. MATERIALS AND
methodsIn this retrospective case control study, patients undergoing IVF cycles from January 2012 to December 2012 were enrolled in Assisted Reproduction of Wuhan Union Hospital were enrolled. A total of 1891 cycle contains 1150 fresh embryo transfers and 741 frozen-thawed embryo transfers were studied. All data were transferred directly to SPSS 18 and analyzed.
resultsClinical pregnancy rates of fresh cleavage-stage embryo transfers compared with fresh blastocyst transfers, frozen-thawed cleavage-stage embryo transfers, post thaw cleavage-stage extended blastocyst culture transfers and frozen-thawed blastocyst transfers were 52.7%, 35.88%, 35.29%, 47.75%, 59.8% in patients under 35 years of ages and 41.24%, 26.92%, 11.32%, 46.15%, 55.8% in patients older than 35 years old, respectively. The multiple pregnancy rates, abortion rates and ectopic pregnancy rates did not differ significantly among the five groups.
conclusionThe clinical pregnancy rates were not different significantly between fresh cleavage-stage embryo transfers and fresh blastocyst transfers. But the clinical pregnancy rate of frozen-thawed blastocyst transfer was the highest among fresh/frozen-thawed embryo transfers.
Indexed as
Identifiers
25071849PMC4111889W2209004699What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.