Reproductive biomedicine online
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Reprod. Biomed. Online · Feb 2014
Review Meta AnalysisHysteroscopy prior to the first IVF cycle: a systematic review and meta-analysis.
This systematic review and meta-analysis investigated the use of routine hysteroscopy prior to starting the first IVF cycle on treatment outcome in asymptomatic women. Searches were conducted on MEDLINE, EMBASE, Cochrane Library, National Research Register and ISI Conference Proceedings. The main outcome measures were clinical pregnancy and live birth rates achieved in the index IVF cycle. ⋯ Hysteroscopy in asymptomatic woman prior to their first IVF cycle was found to be associated with improved chance of achieving a pregnancy and live birth when performed just before commencing the IVF cycle. The procedure was safe. Larger studies are still required to confirm our findings.
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Reprod. Biomed. Online · Feb 2014
Fresh transfer outcome predicts the success of a subsequent frozen transfer utilizing blastocysts of the same cohort.
The objective of this retrospective analysis was to assess whether the outcomes of fresh blastocyst transfer cycles are predictive of the chances for pregnancy and live birth in subsequent frozen blastocyst transfer cycles using sibling embryos from the same retrieval. Clinical pregnancy rate (CPR) and live birth rate (LBR) per fresh and frozen blastocyst transfer were assessed. All subgroups had similar patient and cycle characteristics. ⋯ Few studies have carefully examined the impact of the result of the fresh embryo transfer (whether the patient became pregnant or not) on subsequent frozen embryo transfer success. Here we show that women who are not pregnant after a fresh embryo transfer have higher success rates in subsequent frozen embryo transfer cycles that use frozen embryos generated during a single IVF cycle. In these women (not pregnant after a fresh embryo transfer), frozen embryo transfer pregnancy rates are the same as rates using fresh embryos.