Ultrasound-guided embryo transfer: a meta-analysis of randomized controlled trials

Sallam, Hassan; Sadek, Sameh

doi:10.1016/s0015-0282(03)01009-4

Cited by 123 publications

(80 citation statements)

References 19 publications

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“…These potentially negative elements include: 1) initiation of uterine contractility that may lead to immediate or delayed expulsion of the embryos, especially for patients who experience difficult transfers; 2) the presence of cervical mucus that may plug the tip of the catheter or entangle the embryo and drag it out during withdrawal of the catheter; and 3) for patients with acute utero-cervical angulations, cervical stenosis or anatomical distortion of the cervical canal, the regular method without ultrasound guidance cannot put the embryos in the correct location in the uterine cavity due to failure to pass the catheter through the internal os (15). The application of abdominal ultrasound has led to major improvements in embryo transfer (16,17). Our observations have demonstrated that the use of ultrasound significantly increases the rate of implantation and clinical pregnancy.…”

Section: Discussionmentioning

confidence: 99%

Abdominal Ultrasound-Guided Embryo Transfer Improves Clinical Pregnancy Rates After In Vitro Fertilization: Experiences from 330 Clinical Investigations

Lü

Hao

et al. 2005

J Assist Reprod Genet

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Purpose : To investigate the effect of ultrasound-guided embryo transfer on the rate of implantation and clinical pregnancy. Methods : A prospective randomized trial was performed to compare ultrasound-guided embryo transfer with the traditional method. A total of 330 patients were randomly divided into two groups on the day of embryo transfer. For the cases (n = 178), ultrasound-guided was used; controls (n = 152) was performed using routine methods. Results : The rate of implantation and clinical pregnancy for the cases (19.6 and 37.1%, respectively) was significantly higher than for the controls (12.6 and 25%, respectively; p < 0.05). Conclusion : Ultrasound-guided embryo transfer can significantly increase the rate of implantation and clinical pregnancy, and should be recommended as a routine procedure in the process of in vitro fertilization and embryo transfer (IVF-ET).

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Section: Discussionmentioning

confidence: 99%

Abdominal Ultrasound-Guided Embryo Transfer Improves Clinical Pregnancy Rates After In Vitro Fertilization: Experiences from 330 Clinical Investigations

Lü

Hao

et al. 2005

J Assist Reprod Genet

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“…The use of ultrasound to place the embryos in the uterine cavity has been shown to improve pregnancy outcome in multiple studies [1][2][3][4]. Two recent meta-analyses have confirmed the improvement in pregnancy success with UG-ET [5,6].…”

Section: Introductionmentioning

confidence: 96%

“…To ensure proper placement of the embryos, many providers perform a transabdominal ultrasound-guided embryo transfer (UG-ET). The UG-ET technique has been the focus in many clinical trials and two large meta-analyses [1][2][3][4][5][6][7][8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

“…In the eight prospective clinical trials reviewed by Buckett et al and Sallam et al five showed a benefit of UG-ET and only three of these studies were deemed by the reviewing authors as properly randomized [5,6]. Most recently, Shamonki et al presented the results of a small prospective study suggesting that a benefit does exist with UG-ET [11].…”

Section: Introductionmentioning

confidence: 99%

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The pre-cycle blind mock embryo transfer is an inaccurate predictor of anticipated embryo transfer depth

Miller

Frattarelli

2007

J Assist Reprod Genet

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Purpose: To assess if the uterine cavity depth measured by a blind pre-cycle mock transfer changes after gonadotropin stimulation.Methods: This is a retrospective cohort study at an academic IVF program involving 128 infertility patients. The main outcome measures were uterine cavity depth measured at the blind pre-stimulation mock transfer and the ultrasoundguided embryo transfer.Results: A ≥ 1 cm increase in uterine cavity depth was found in 57.9% of the patients. The mean pre-cycle blind mock transfer uterine depth significantly differed from the mean uterine depth measured at embryo transfer. Based on the mock transfer, the anticipated embryo transfer depth was significantly less than the actual ultrasound-guided embryo transfer depth.Conclusion: Uterine depth significantly differed between the blind pre-cycle mock transfer measurement and the ultrasound-guided embryo transfer measurement. The mock transfer may predict a difficult embryo transfer but it is an inaccurate predictor of the final embryo transfer depth.

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“…Systematic reviews have shown that US guidance improves the clinical pregnancy, ongoing pregnancy, and live-birth rates in women when compared with the standard clinical touch method [1]- [4]. Ultrasound helps in confirming the position of the catheter tip within the uterine cavity, properly determining the site of embryo deposition, and decreasing the frequency of "difficult" ETs [2]. Difficult embryo transfers significantly diminish the pregnancy and implantation rates in patients undergoing ICSI [5].…”

Section: Introductionmentioning

confidence: 99%

Office Hysteroscopy in Difficult Embryo Transfer; Case Report of Three Cases

El‐Mahdy¹,

Salam²,

Kobeisy³

2016

OJOG

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Objectives: To facilitate embryo transfer technique in cases with previous failed or difficult transfer using office hysteroscopy. Study Design: Case report of 3 cases of previous difficult embryo transfer (ET). Methods: Hysteroscopic assisted insertion of cervical stent at the end of withdrawal bleeding in the stimulation cycle. This stent was used as a track for embryo transfer catheter. Results: One case cancelled before (embryo transfer) ET and the other 2 cases didn't get pregnant in spite of easy embryo transfer. Conclusion: This hysteroscopic assisted ET technique may facilitate ET technique in cases with difficult embryo transfer due to deformed cervix.

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Ultrasound-guided embryo transfer: a meta-analysis of randomized controlled trials

Cited by 123 publications

References 19 publications

Abdominal Ultrasound-Guided Embryo Transfer Improves Clinical Pregnancy Rates After In Vitro Fertilization: Experiences from 330 Clinical Investigations

Abdominal Ultrasound-Guided Embryo Transfer Improves Clinical Pregnancy Rates After In Vitro Fertilization: Experiences from 330 Clinical Investigations

The pre-cycle blind mock embryo transfer is an inaccurate predictor of anticipated embryo transfer depth

Office Hysteroscopy in Difficult Embryo Transfer; Case Report of Three Cases

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