Techniques and technology for human oocyte collection

Leung, Annie; Dahan, Michael H.; Tan, Seang Lin

doi:10.1080/17434440.2016.1205485

Cited by 10 publications

(5 citation statements)

References 20 publications

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“…In our study, OPU was performed by a single doctor with 15 years of experience; thus, the frequency of complications should be assessed in accordance with this fact. In previous studies, the aspiration needle gauge has been shown to affect pain levels after OPU [ 10 , 11 , 36 ]. In our study, the fact that these conditions facilitate or reduce pain levels may cause misinterpretations in comparison with other studies.…”

Section: Discussionmentioning

confidence: 99%

“…More serious complications, such as abscesses, sepsis, fistulas, urethral or/ bladder injuries, and ovarian torsion are rarely encountered [ 9 ]. In addition, the risk of complications of OPU is affected by variables such as the experience of the surgeon [ 4 ] and the features of the equipment being used [ 10 , 11 ]. In addition to complications arising from the procedure itself, undesirable effects due to anesthesia and sedation can also occur.…”

Section: Introductionmentioning

confidence: 99%

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Comparison of complication rates after transvaginal ultrasound-guided oocyte pick-up procedures with respect to ovarian response

Güngör

Gürbüz

ÖNAL>³

2022

Clin Exp Reprod Med

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Objective: The aim of this study was to compare the complication rates of oocyte pick-up (OPU) procedures via transvaginal ultrasonography in patients with different levels of ovarian reserve. Methods: In total, 789 patients who underwent OPU procedures for in vitro fertilization (IVF) were included in the study.Results: Individuals with normal ovarian reserve had a 2.947-fold higher risk of complications in OPU procedures than individuals with low ovarian reserve, and individuals with high ovarian reserve had a 7.448-fold higher risk of complications than individuals with low ovarian reserve. In addition, a higher number of IVF trials was associated with an increased risk of complications.Conclusion: The results of this study show that OPU has a higher risk of complications, particularly severe pain, in patients with high ovarian reserve. It is thought that complications can be reduced by preferring mild stimulation in patients with high ovarian reserve. Collecting fewer oocytes is also associated with a lower risk of complications from OPU. Even if a patient’s reserve is very good, fewer and higher-quality oocytes should be targeted with the use of the lowest possible dose of drugs.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Comparison of complication rates after transvaginal ultrasound-guided oocyte pick-up procedures with respect to ovarian response

Güngör

Gürbüz

ÖNAL>³

2022

Clin Exp Reprod Med

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“…This benefit is thought to occur because cumulus-oocyte complexes in poor responding women have less luteinizing hormone receptor responsiveness and oocyte may not be released from the follicle wall as easily compared to women who are normal responders. [ 5 ] Failure of retrieval of cumulus-oocyte complex from a given follicle is most likely a problem of maturity and healthiness of oocyte, cumulus cells, and mural granulosa cells, rather than technically insufficient aspiration procedure. [ 6 ] So even if one or two more oocytes are retrieved as a result of the flushing process, it is not necessary that the extra oocytes retrieved are mature and are capable of fertilization.…”

Section: Discussionmentioning

confidence: 99%

Follicular flushing versus direct aspiration at oocyte retrieval in poor responders undergoing in vitro fertilization: A randomized controlled trial

et al. 2020

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Aim: This study aims to study the effect of follicular flushing at oocyte retrieval on Assisted Reproductive Technique (ART) outcomes in poor responders undergoing in vitro fertilization. Settings and Design: A prospective randomized controlled trial was conducted in the ART center of our hospital. Materials and Methods: A total of 71 patients who responded poorly during controlled ovarian stimulation were recruited. Patients were randomized to follicular flushing or to direct aspiration group. The primary outcomes of the study were the total number of oocytes retrieved and the number of metaphase (M II) oocytes retrieved. Secondary outcomes were anesthesia time, procedure time, fertilization rate, cleavage rate, total number of embryos, number of embryos transferred, number of Grade 1 embryos, failed oocyte recovery, failed fertilization, implantation rate, clinical pregnancy rate, miscarriage rate, and live birth rate. Statistical Analysis Used: Chi-square test and Student's t -test. Results: The total number of oocytes retrieved, number of M II oocytes, fertilization rate, cleavage rate, total number of embryos, number of Grade 1 embryos, failed oocyte recovery, failed fertilization, implantation rate, miscarriage rate, and live birth rate were comparable between the two groups. The anesthesia and procedure time was significantly higher in the flushing group. Conclusions: Follicular flushing does not result in a significant improvement in the ART outcomes despite increasing procedure and anesthesia times. Trial registration number CTRI/2017/07/009062.

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“…Once the eggs are at a sufficient level of maturity, there are two primary methods for retrieving the gametes for later cryopreservation. These include ultrasound guided transvaginal oocyte retrieval and laparoscopic retrieval (Leung et al, 2016).…”

Section: Female Fertility Preservationmentioning

confidence: 99%