Antibubble trajectory during embryo transfers in donor egg IVF does not predict success

Allahbadia, Gautam N.; Gandhi, Goral; Kadam, K.S.; Arora, Sulbha; Awasthi, Anjali; Nagwekar, A.; Allahbadia, Swati; Wolman, Igal

doi:10.1016/s1472-6483(10)60156-3

Cited by 4 publications

(3 citation statements)

References 24 publications

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“…In assisted reproduction, embryo transfer is the final, crucial step, but the invasive insertion of the catheter may disturb the physiological processes of embryo implantation. Although the combination of a soft catheter and ultrasound guidance permit placement with high precision, intrauterine deposition of embryos does not always mean that they remain in situ (Poindexter et al, 1986;Knutzen et al, 1992;Mansour et al, 1994;Lesny et al, 1998;Coroleu et al, 2000;Wood et al, 2000;Allahbadia et al, 2008). Poindexter et al (1986) estimated that about 15% of the transferred embryos were left outside or expelled from the uterine cavity, being located either at the cervical os on the vaginal speculum or remaining in the catheter after embryo transfer.…”

Section: Introductionmentioning

confidence: 99%

Uterine peristalsis exerts control over fluid migration after mock embryo transfer

et al. 2013

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Section: Introductionmentioning

confidence: 99%

Uterine peristalsis exerts control over fluid migration after mock embryo transfer

et al. 2013

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“…Extensive work on identifying the optimal place to release the embryo has taken place because the movement of the final position of the embryo is unlikely to be a factor predicting the success of ET ( Allahbadia et al , 2008 ; Ozcan et al , 2016 ). The middle upper area gives better results in terms of implantation and pregnancy rates ( Oliveira et al , 2004 ).…”

Section: Recommendationsmentioning

confidence: 99%

Evidence and consensus on technical aspects of embryo transfer

D’Angelo

Panayotidis²,

Alteri

et al. 2022

Human Reproduction Open

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BACKGROUND Ultrasound-guided embryo transfer (US-GET) is a widely performed procedure, but standards for the best practice are not available. OBJECTIVE AND RATIONALE This document aims to provide an overview of technical aspects of US-GET after considering the published data and including the preparation for the embryo transfer (ET) procedure, the actual procedure, the post-procedure care, associated pathologies, complications and risks, quality assurance and practitioners’ performance. SEARCH METHODS A literature search for evidence on key aspects of the ET procedure was carried out from database inception to November 2021. Selected papers (n = 359) relevant to the topic were analysed by the authors. The following key points were considered in the papers: whether ultrasound (US) practice standards were explained, to what extent the ET technique was described and whether complications or incidents and how to prevent such events were reported. In the end, 89 papers could be used to support the recommendations in this document, which focused on transabdominal US-GET. OUTCOMES The relevant papers found in the literature search were included in the current document and described according to the topic in three main sections: requirements and preparations prior to ET, the ET procedure, and training and competence for ET. Recommendations are provided on preparations prior to ET, equipment and materials, ET technique, possible risks and complications, training and competence. Specific aspects of the laboratory procedures are covered, in particular the different loading techniques and their potential impact on the final outcomes. Potential future developments and research priorities regarding the ET technique are also outlined. LIMITATIONS, REASONS FOR CAUTION Many topics were not covered in the literature review and some recommendations were based on expert opinions and are not necessarily evidence based. WIDER IMPLICATIONS ET is the last procedural step in an ART treatment and is a crucial step toward achieving a pregnancy and live birth. The current paper set out to bring together the recent developments considering all aspects of ET, especially emphasizing US quality imaging. There are still many questions needing answers, and these can be subject of future research. STUDY FUNDING/COMPETING INTEREST(S) No funding. ADA has received royalties from CRC Press and personal honorarium from Cook, Ferring and Cooper Surgical. The other co-authors have no conflicts of interest to declare that are relevant to the content of this article.

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“…Therefore, transabdominal ultrasound (Leong et al 1986) and, more recently, vaginal ultrasound guidance (Anderson et al 2002) have added more consistency to the procedure. The ultrasound guidance during the embryo transfer allows visual monitoring of the process, while navigating embryo placement within the uterine cavity with high precision (Allahbadia et al 2008). Besides the ultrasound guidance, Coroleu et al (2002a) suggested that depth of the embryo insertion into the uterine FDYLW\ PD\ LQÀXHQFH LPSODQWDWLRQ UDWHV DIWHU IVF.…”

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confidence: 99%

Embryo transfer based on previous uterine length measurement enhances ICSI outcomes when compared to standard ultrasonographic-guided embryo transfer

Maldonado¹,

Braga²,

Azjen³

et al. 2010

JBRA

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OBJECTIVE: To test the hypothesis that embryo transfer based on previous uterine length measurement is a better method to improve pregnancy rates when compared to the standard ultrasonographic-guided embryo transfer method. METHODS:Patients undergoing Controlled Ovarian Stimulation (COS) for Intracytoplasmic Sperm Injection (ICSI) cycles were allocated into two groups based on embryo transfer method used. Cycles in which embryo transfer was performed based on previous uterine length measurement (ULM group, n=50) and cycles in which embryo transfer was performed though standard ultrasonographic-guidance (Control group, n=150). The easiness of transfer, implantation and pregnancy rates were compared among the groups using the Student's t test and Chi-squared or Fisher exact tests as appropriate.RESULTS: Similar results were found between groups regarding the easiness of transfer. Both implantation (11.9% vs 30.7% for Control and ULM groups respectively, p< 0,001) and pregnancy rates (26.0% vs 54.0% for Control and ULM groups respectively, p< 0,001) were VLJQL¿FDQWO\ KLJKHU LQ WKH 8/0 JURXS CONCLUSION: Ultrasound guided embryo transfer based on previous uterine length measurement is useful to increase the pregnancy and implantation rates in patients submitted to COS and ICSI cycles.

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Antibubble trajectory during embryo transfers in donor egg IVF does not predict success

Cited by 4 publications

References 24 publications

Uterine peristalsis exerts control over fluid migration after mock embryo transfer

Uterine peristalsis exerts control over fluid migration after mock embryo transfer

Evidence and consensus on technical aspects of embryo transfer

Embryo transfer based on previous uterine length measurement enhances ICSI outcomes when compared to standard ultrasonographic-guided embryo transfer

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