Early Abortion Research Articles

The effects of fresh embryo transfer and frozen-thawed embryo transfer on the perinatal outcomes of single fetuses from mothers with PCOS.

To investigate the effects of fresh embryo transfer and frozen-thawed embryo transfer on perinatal outcomes among patients with PCOS. Patients who underwent in vitro fertilization and embryo transfer at the reproductive medicine center of the Affiliated Hospital of Guangdong Medical University from February 2013 to March 2021 were retrospectively analyzed. Patients were divided into the fresh embryo transfer group and frozen-thawed embryo transfer group according to whether fresh embryo transfer was performed. According to their conditions, patients were further classified into the ET-PCOS group (group A, n = 104), ET-non-PCOS group (group B, n = 212), FET-PCOS group (group C, n = 102), or FET-non-PCOS group (group D, n = 148); the general data, laboratory indicators and pregnancy outcomes of the patients were statistically analyzed, and the perinatal outcomes and related factors between the groups were compared and analyzed. The level of E2 on the HCG test day in the ET group was lower than that in the FET group. The natural birth rate of group D was lower than that of group A and group B, and the cesarean section rate was higher than that of group A and group B; the clinical pregnancy rate of group A was higher than that of group B and group D, and the difference was statistically significant (P < 0.05). There was no significant difference in the total abortion rate, early abortion rate or late abortion rate between the groups (P > 0.05). There was no significant difference in gestational age, neonatal sex or neonatal weight between the groups (P > 0.05). The incidence of placenta previa in Group B was significantly lower than that in Group D, and the difference was significant (P < 0.05). The incidence of fetal distress in Group B was significantly lower than that in Groups C and D, and the incidence of neonatal jaundice in Group D was significantly higher than that in Groups A and B (P < 0.05). In the multivariate analysis, the number of high-quality embryos was independent factors affecting clinical pregnancy, and the embryo transfer method was an independent factor affecting fetal distress and neonatal jaundice. Young PCOS patients without risk of OHSS have a high clinical pregnancy rate with fresh transplant cycles. PCOS disease itself has no significant effect on the perinatal outcomes of the mother or singleton infant. Frozen-thawed embryo transfer may increase the incidence of low placenta, fetal distress and neonatal jaundice.

Synergistic Effect of Some Molecular Biomarkers in The Development of Preeclampsia and Abortion in Pregnant Women Suffer from Toxoplasmosis

The current study summarized the effect of toxoplasmosis, which is caused by parasitic infection with protozoan known as Toxoplasma gondii, on pregnant women who suffer from repeated miscarriages, especially in the first trimester of pregnancy, this research documented the reduction of sex hormones values in healthy pregnant women, association with down ROP16 regulation(T.gondii-I virulence factor). While the average of the same parameters was increased in pregnant women who suffered from toxoplasmosis, which in turn led to inhibition of the transcription factor NFKB in parasite`s infected women, and inhibition of the patient's immune response. On the other hand, both of ROP16 and NFKB genes play a critical role in an increase of miR146 transcription, it consider a significant factor that activate epigenetic effect perhaps play role in reducing of host's immune system. At the end the placental cell signaling pathway was modified and increased atrophy of placental trophoblast with association of serious complications led at the end to emergence of early abortion.

Impact of an early medical abortion at home pack of medicines in Scotland

Impact of an early medical abortion at home pack of medicines in Scotland

Methotrexate: Use in the Post Dobbs v. Jackson Era.

Methotrexate is one of the most frequently used medications for the treatment of rheumatic diseases. Although initially developed for use as chemotherapy for both solid and hematologic malignancies, it was used as early as the 1960s with success for rheumatoid arthritis (RA) and psoriatic arthritis, ultimately being approved by the US Food and Drug Administration for the treatment of RA in 1988. Beyond RA and psoriatic arthritis, methotrexate is used in the treatment of systemic lupus erythematosus, idiopathic inflammatory myopathies, and other inflammatory conditions. Methotrexate is cytotoxic to the trophoblast and has been used to treat both ectopic pregnancy and gestational trophoblastic neoplasia, leading to studies in the early 1990s that showed it was effective and safe for early abortion in combination with prostaglandin E1 analog misoprostol. Methotrexate is also a teratogen, causing serious birth defects in 6%-10% of patients taking it while pregnant. Additionally, women are more likely to be affected by both RA at SLE, as compared with males, thus worsening the burden of these adverse effects. Both methotrexate's history of use as an abortifacient and its teratogenic properties make its use more complicated in the current era of abortion policy in the United States following the Dobbs v. Jackson Women's Health Organization ruling. Recently published data suggest that this ruling has affected both provider perspectives and patient experiences as it relates to methotrexate use. In the post-Dobbs era, the role of the rheumatologist as it relates to patients' sexual and reproductive health is likely to expand.

Delays in seeking abortion and its determinants among reproductive-age women based on the Ethiopian Demographic and health survey

IntroductionDelaying in seeking abortion services causes adverse public health outcomes, which increases maternal mortality rates due to complications from abortion. However, evidence shows that there are limited factors associated with delayed abortion. Therefore, the study aims to determine the magnitude and identify factors associated with delayed seeking abortion among reproductive-aged women in Ethiopia. MethodsSecondary cross-sectional data analysis was conducted on the Ethiopian Demographical and Health Survey dataset. A total weighted sample of 2198 reproductive-aged women was considered in this study. All data processing and statistical analyses were performed using R-software version 4.2.3. Multilevel binary logistic regression analysis was used to identify a significant predictor for delays in seeking abortion. An adjusted odds ratio with a 95 % confidence interval was used to measure a statistical association. ResultThe prevalence of delays in seeking abortion among women in Ethiopia was 32 %. Educational status (AOR = 0.63; 95 % CI: 0.37–0.78), marital status (AOR = 2.12; 95 % CI: 1.38–3.74), wealth index (AOR = 0.54; 95 % CI: 0.41–0.75), frequency of listening a radio (AOR = 0.61; 95 % CI: 0.45–0.75), live births (AOR = 0.43; 95 % CI: 0.25–0.72), pregnancy wanted status (AOR = 0.59; 95 % CI: 0.4–0.79), contraceptive use (AOR = 0.46; 95 % CI: 0.34–0.69), and place of residence (AOR = 2.31; 95 % CI: 1.67–3.19) were statistically significantly variables associated with delays in seeking abortion. ConclusionsDelayed seeking abortion remains high in Ethiopia. The study is vital for policymakers, healthcare providers, and advocates to improve training on the importance of early abortion care, develop targeted interventions for better accessibility to abortion services, expand health education programs to raise awareness about reproductive rights and empower women with information for informed reproductive health decisions. Health education programs, specifically targeting uneducated women, poorer women, rural resident women, and women who do not use contraceptives, would decrease delays in accessing abortion services.

Early Trilogy Spontaneous Abortion Risk From Caffeine Intake

Early Trilogy Spontaneous Abortion Risk From Caffeine Intake

Effect of estradiol supplementation on luteal support following a significant reduction in serum estradiol levels after hCG triggering: a prospective randomized controlled trial

ObjectiveThis study aimed to evaluate the impact of adding 4 mg estradiol valerate to progesterone for luteal support on pregnancy rates in IVF cycles following a long protocol with reduced luteal serum estradiol levels post-hCG triggering.Design, setting, and participantsThe prospective randomized controlled trial was conducted at a public tertiary hospital reproductive center with 241 patients who experienced a significant decrease in serum estrogen levels post-oocyte retrieval.InterventionsParticipants received either a daily 4 mg dose of estradiol valerate in addition to standard progesterone or standard progesterone alone for luteal support.ResultsThe ongoing pregnancy rate did not show a significant difference between the E2 group and the control group (56.6% vs. 52.2%, with an absolute rate difference (RD) of 4.4%, 95% CI -0.087 to 0.179, P = 0.262). Similarly, the live birth rate, implantation rate, clinical pregnancy rate, early abortion rate, and severe OHSS rate were comparable between the two groups. Notably, the E2 group had no biochemical miscarriages, contrasting significantly with the control group (0.0% vs. 10.7%, RD -10.7%, 95% CI -0.178 to -0.041, P = 0.000). In the blastocyst stage category, the clinical pregnancy rate was notably higher in the E2 group compared to the control group (75.6% vs. 60.8%, RD 14.9%, 95% CI 0.012 to 0.294, P = 0.016).ConclusionAdding 4 mg estradiol valerate to progesterone for luteal support does not affect the ongoing pregnancy rate in embryo transfer cycles using a long protocol with a significant decrease in serum estradiol levels after hCG triggering. However, it may reduce biochemical miscarriages and positively impact clinical pregnancy rates in blastocyst embryo transfer cycles.Trial registrationChiCTR1800020342.

Choosing to Provide: Early Medical Abortion and Clinician Conscience in Ireland

Providers are essential to the delivery of abortion care. Yet, they often occupy an ambiguous space in political discourse around abortion. The introduction of a new abortion service in Ireland invites us to look afresh at providers. Since the Health (Regulation of Termination of Pregnancy) Act 2018 came into force, by far the most common form of abortion care has been early medical abortion (EMA). This is typically provided by General Practitioners (GPs), with approximately 10% of GPs having chosen to provide EMA. This article draws on an empirical study of providers to investigate their motivations for, and experiences of, provision and their views on colleagues who have not chosen to provide. The study shows that for many providers, the choice to provide was grounded in a moral commitment to protecting women’s rights to autonomy and health and ensuring that the harms of the past were not repeated. The article argues that notwithstanding increased normalisation of EMA in Ireland, conscience still has a role to play in abortion care provision and it is important to reflect on the various aspects of this role.

Effects of Embryo Microbial Contamination on ART and Neonatal Outcomes.

This study investigated the incidence and microbial etiology of embryo contamination in assisted reproductive technology (ART), and its influence on embryo development, pregnancy and neonatal outcomes. A retrospective analysis was conducted on embryo contamination at the Reproductive Centre of the Third Affiliated Hospital of Guangzhou Medical University, between 2018 and 2021. In the period from 2018 to 2021, the average incidence of embryo contamination was 0.12%. Bacterial growth was observed in 39 cases, with a preponderance of Escherichia coli (20, 51.28%), Streptococcus agalactiae (7, 17.95%). The fertilization rate of contaminated embryos was 18.18% (Klebsiella pneumoniae) to 94.79% (S. agalactiae), the cleavage rate was 9.09% (Enterobacter cloacae) to 98.90% (S. agalactiae), and the available embryo rate of Day 3 was 0 (Klebsiella pneumoniae, Enterobacter cloacae) to 63.33% (S. agalactiae). Blastocyst formation rate was 3.23% (Proteus mirabilis) to 64.29% (Streptococcus mitis). E. coli contamination occurred mostly on Day 1, and S. agalactiae on Days 3 and 5. After rinsing and rescuing treatment, six healthy male babies were born. E. coli and S. agalactiae were the most common bacterial embryo contaminants. Most microbial contamination can significantly decrease the fertilization rate. Embryo transfer after rinsing and continuing culture had no negative effect on neonatal outcomes, but there was an increased risk of early abortion due to E. coli contamination.

Comparison of medication abortion outcomes at less than and greater than 6 weeks gestation

ObjectivesTo compare outcomes and characteristics of two cohorts of patients: those receiving medication abortion (MAB) at ≤42 days gestation and those at 43-56 days gestation. Study DesignWe conducted a retrospective cohort study to compare characteristics and outcomes of all 142 patients accessing MAB at ≤42 days versus 200 patients at 43-56 days in 2022. We sought to detect a 7% difference in MAB success with 80% power and an alpha of 0.05. We compared follow-up responses and unscheduled contacts with the healthcare system. ResultsAbortion success rates were similar between the ≤42 day and 43-56 day groups (94.3% vs 97%, p=0.226). Those ≤42 days had a higher frequency of unscheduled office visits (13% vs 6%, p=0.01) but no difference in phone calls or emergency room visits. More patients with successful MAB in the ≤42 days group answered that bleeding (11.7% vs 1.9%, p=0.006) and cramping (10.5% vs 2.9%, p=0.035) were not heavier or worse than a period, and that they did not have pregnancy symptoms prior to the abortion (15.8% vs 6.0%, p=0.034).Patients ≤42 days gestation less often had a pre-treatment ultrasound (48% vs 64%, p=0.004). Patients without prior ultrasound more often needed uterine aspiration to complete the abortion (6.8% vs 2%, p=0.027). ConclusionsPatients undergoing MAB at ≤42 days have similar success rates but more unscheduled office visits, and more ambiguous symptoms when using standardized questions for evaluating abortion success. Clinicians should consider adapting their anticipatory guidance and counseling for this population. ImplicationsAccess to very early abortion is increasingly relevant as legal restrictions on abortion increase. Earlier gestations may have different responses to standard follow-up questions despite a successful MAB and may have more interactions with the healthcare system.

Aborted pancreatoduodenectomy after extensive vascular dissection in patients with pancreatic cancer: a word of caution.

Difficulties in distinguishing fibrosis from tumor in borderline and locally advanced pancreatic adenocarcinoma (PDAC) justify surgical exploration to assess resectability. This issue is especially relevant after neoadjuvant treatments (NAT) prior to pancreaticoduodenectomy (PD) although outcomes of aborted PD are unknown. This study aimed to evaluate early outcomes after aborted PD in patients with PDAC. Data were collected over a ten-year period, in three University Hospitals in France. Perioperative patient management was similar. The causes of intraoperative PD abortions were recorded, and outcomes of patients who underwent early (metastases, carcinomatosis) and late (following extensive vascular dissection) PD abortion were compared. Of 774 PD for PDAC, 131 (17%) were aborted. 97 (74%) patients underwent early PD abortion due to carcinomatosis (n = 14; 14%), liver metastases (n = 32; 33%), aortocaval lymph node invasion (n = 28; 29%) and massive vascular extension (n = 23; 24%). Late PD abortion occurred after extensive vascular dissection in 34 (26%) patients due to invasion of the common hepatic (n = 16; 47%), superior mesenteric (n = 5; 15%) and right hepatic (n = 1; 3%) arteries and nonreconstructable venous invasion (n = 12; 35%). Patients who underwent late PD abortion had higher rates of overall morbidity (n = 22; 65% vs n = 27; 28%, p = 0.0001), severe complications (n = 14; 41% vs n = 11; 11%, p = 0.0005), mortality (n = 4; 12% vs n = 0; 0%, p = 0.003). They also had higher rates of delayed gastric emptying (n = 11; 32% vs n = 6; 6%, p = 0.0003), deep space infections (n = 10; 29% vs n = 7; 7%, p = 0.002), wound infections (n = 5; 15% vs n = 4; 4%, p = 0.05), and bleeding (n = 8; 24% vs n = 0; 0%, p < 0.0001). Aborted PD after extensive vascular dissection has high morbidity and mortality rates. Appropriate information and counseling should be delivered to patients with borderline/locally advanced PDAC considered for PD.

Contraception Initiation after Early Abortion in a Family Medicine Setting: A Retrospective Chart Review.

Early abortion increasingly is provided in the primary care setting, allowing improved access, continuity of care, and contraception, if desired. We aimed in this retrospective chart review to describe postabortion contraception provision in a family medicine office. Participants were those patients who obtained an induced abortion during an 11-year period at a family medicine office. We documented contraception provision within 30 days of abortion and used simple proportions, Fisher exact tests, and χ2 tests to describe differences in contraceptive provision by type of abortion and continuity status. Most of the patients who underwent abortions (254/353, 72%) had documentation of a contraceptive method within 30 days of abortion, which was similar for patients who had either a medication (124/166, 75%) or an aspiration abortion (130/187, 70%, P = 0.71). The most common contraceptives were contraceptive pills (104/353, 29%) or intrauterine devices (68/353, 19%). Patients who chose a tier 1 method were more likely to have a procedure abortion (50/87, 57%), whereas patients who chose a tier 2 method were likely to have a medication abortion (83/160, 52%). Fewer than half (45%, 158/353, P = 0.0002) were continuity patients and established patients in the primary care office. Most tier 1 contraceptive users were continuity patients (49/87, 60%), whereas most patients without a contraceptive method were noncontinuity patients (72/99, 73%). The primary care setting is uniquely equipped for providing early abortion and postabortion contraception. Although the providers offered all contraceptive options to eligible patients, continuity patients were more likely to receive more effective contraception in their primary care office.

Acupuncture combined with gonadotropin-releasing hormone agonists improves endometrial receptivity and pregnancy outcome in patients with recurrent implantation failure of in vitro fertilization-embryo transfer.

Gonadotropin-releasing hormone agonists (GnRHa), combined with other auxiliary treatments, can improve pregnancy outcomes in in vitro fertilization-embryo transfer (IVF-ET). This research investigated the effect of acupuncture combined with GnRHa in patients with recurrent implantation failure (RIF) of IVF-ET. A total of 164 patients who intended to undergo frozen-thawed embryo transfer after RIF of IVF-ET were selected for experiments and then divided into the control (received conventional hormone replacement therapy (HRT) for endometrial preparation) and study groups (received a combination of acupuncture, GnRHa, and HRT for endometrial preparation) (n = 82). Endometrial thickness (EMT), endometrial morphological classification, submucosal uterine blood flow classification, clinical pregnancy rate, embryo implantation rate, and early abortion rate for each transfer cycle were compared between the two groups. EMT of the study group was higher than that of the control group 1 day before transfer. There were more patients with linear endometrium (A + B type) in the study group on the day of endometrial transformation than in the control group. The number of patients with type I submucosal uterine blood flow in the study group was decreased and the number of patients with type III was increased compared with the control group on the day of endometrial transformation. The clinical pregnancy rate and embryo implantation rate of the study group were higher than those of the control group. Acupuncture combined with GnRHa improves the endometrial receptivity of patients with RIF of IVF-ET, thereby increasing clinical pregnancy rates and improving pregnancy outcomes.

Effect of sequential cleavage and blastocyst embryo transfer compared to single cleavage stage embryo transfer on assisted reproductive technology outcome: An RCT.

Assisted reproductive technology (ART), offers hope for many infertile couples by increasing the chance of successful pregnancy. The success of in vitro fertilization depends on various factors, in which embryo transfer (ET) is one of the critical steps influencing in vitro fertilization success rates. Extended embryo culture and blastocyst-stage ET have been considered in ART due to their potential benefits including improved implantation rates. This study aimed to compare the outcomes of sequential ET vs single cleavage-stage ET in women undergoing a fresh ET cycle with a limited number of embryos. This randomized clinical trial was conducted on 140 women undergoing infertility treatments and candidates for fresh ET at the Research and Clinical Center for Infertility, Yazd, Iran from August 2023 to January 2024. Women with a number of embryos from 2-5 ( 2 and 5 available embryos) were randomly divided into 2 groups: One group underwent sequential ET (one cleavage-stage ET followed by one blastocyst ET) and the other group underwent single-step 2 cleavage-stage ET. The primary outcome was clinical pregnancy, and the secondary outcome included chemical pregnancy and early abortion rates. Our findings showed significantly higher rates of clinical (33.5% vs 13.6%, p = 0.003) and chemical (41.3% vs 18.2%, p = 0.004) pregnancies in the sequential ET group compared to the single-step cleavage ET group. The early abortion rate was higher in single-step cleavage ET (13% vs 44.4%, p = 0.053). Sequential fresh ET is a useful choice in women who have a limited number of embryos and can improve ART outcomes.

Side effects and efficacy of oral mifepristone plus sublingual misoprostol regimen in early medical abortion (gestation up to 63 days)

Side effects and efficacy of oral mifepristone plus sublingual misoprostol regimen in early medical abortion (gestation up to 63 days)

TNF-α-positive patients with recurrent pregnancy loss: The etiology and management.

Elevated levels of tumor necrosis factor-alpha (TNF-α) have been associated with adverse pregnancy outcomes, specifically recurrent pregnancy loss (RPL). These elevated levels may be associated with the presence of autoantibodies. Although TNF-α inhibitors have shown promise in improving pregnancy rates, further research is needed to comprehend their impact and mechanisms in RPL patients. This study aims to investigate the association between elevated TNF-α levels and autoantibodies in RPL patients, as well as evaluate the effect of TNF-α inhibition on pregnancy outcomes. A total of 249 RPL patients were included in this study. Serum levels of TNF-α, autoantibodies, and complement were measured and monitored. Among these patients, 138 tested positive for TNF-α, while 111 tested negative. The medical records of these patients were retrospectively evaluated. Additionally, 102 patients with elevated TNF-α levels were treated with TNF-α inhibitors, and their pregnancy outcomes were assessed. TNF-α-positive RPL patients had higher levels of complement C1q, anti-cardiolipin (ACL)-IgA, ACL-IgM ,ACL-IgG, thyroglobulin antibody, and Anti-phosphatidylserine/prothrombin IgM antibody, as well as a higher positive rate of antinuclear antibodies compared to TNF-α-negative patients (23.19% vs. 12.6%, P< 0.05). Conversely, complement C3 were lower in TNF-α-positive patients (t test, P< 0.05). The use of TNF-α inhibitors led to a reduction in the early abortion rate (13.7% vs. 44.4%, P< 0.001) and an improvement in term delivery rate (52.0% vs. 27.8%, P= 0.012). Furthermore, patients who used TNF-α inhibitors before 5 weeks of pregnancy had a lower early abortion rate (7.7% vs. 24.3%, P= 0.033) and a higher term delivery rate (69.2% vs. 48.6%, P= 0.033). TNF-α plays a role in the occurrence and development of RPL, and its expression is closely associated with autoantibodies and complements. TNF-α inhibitors increase the term delivery rate in TNF-α-positive RPL patients, and their use before 5 weeks of pregnancy may more beneficial.

Trends over 50 years with liberal abortion laws in the Nordic countries.

During the 1970s the Nordic countries liberalized their abortion laws. We assessed epidemiological trends for induced abortion on all Nordic countries, considered legal similarities and diversities, effects of new medical innovations and changes in practical and legal provisions during the subsequent years. New legislation strengthened surveillance of induced abortion in all countries and mandated hospitals that performed abortions to report to national abortion registers. Published data from the Nordic abortion registers were considered and new comparative analyses done. The data cover complete national populations. After an increase in abortion rates during the first years following liberalization, the general abortion rates stabilized and even decreased in all Nordic countries, especially for women under 25 years. From the mid-1980s higher awareness about pregnancy termination led women to present at an earlier gestational age, which was accelerated by the introduction of medical abortion some years later. Most terminations (80-86%) are now done before the 9th gestational week in all countries, primarily by medical rather than surgical means. Introduction of routine ultrasound screening in pregnancy during the late 1980s, increased the number of 2nd trimester abortions on fetal anomaly indications without an overall increase in the proportion of 2nd relative to 1st trimester abortions. Further refinement of ultrasound screening and non-invasive prenatal diagnostic methods led to a slight increase in the proportion of early 2nd trimester abortions after the year 2000. Country-specific differences in abortion rates have remained stable over the 50 years of liberalized abortion laws.

Association of ambient PM2.5 and its components with in vitro fertilization outcomes: The modifying role of maternal dietary patterns

Despite the associations of dietary patterns and air pollution with human reproductive health have been demonstrated, the interaction of maternal preconception diet and PM2.5 and its components exposure on in vitro fertilization (IVF) treatment outcomes has not been investigated. A total of 2688 couples from an ongoing prospective cohort were included. Principle component analysis with varimax rotation was performed to determine dietary patterns. One-year and 85-day average PM2.5 and its components exposure levels before oocyte retrieval were estimated. Generalized linear regression models were conducted to assess the association of dietary patterns and PM2.5 and its components exposure with IVF outcomes. Interactive effects of dietary patterns on the association between PM2.5 and its components and IVF outcomes were evaluated by stratified analyses based on different dietary patterns. A positive association between the “Fruits-Vegetables-Dairy” pattern and normal fertilization (p-trend = 0.009), Day 3 available embryos (p-trend = 0.048), and top-quality embryos (p-trend = 0.041) was detected. Conversely, women with higher adherence to the “Puffed food-Bakery-Candy” pattern were less likely to achieve Day 3 available embryos (p-trend = 0.042) and top-quality embryos (p-trend = 0.030), clinical pregnancy (p-trend = 0.049), and live birth (p-trend = 0.020). Additionally, increased intake of animal organs and seafood improved the odds of live birth (p-trend = 0.048). Exposure to PM2.5, SO42-, organic matter (OM), and black carbon (BC) had adverse effects on embryo development and pregnancy outcomes. Furthermore, our findings indicated that the effects of PM2.5 components exposure on normal fertilization and embryo quality were modified by the “Grains-Tubers-Legumes”. Moreover, moderate intake of animal organs and seafood appeared to attenuate the effect of NO3- and NH4+ on the risk of early abortion. Our findings provide human evidence of the interaction between dietary patterns and PM2.5 exposure on IVF outcomes during preconception, implicating the potential for dietary interventions in infertile women to improve reproductive outcomes under conditions of unavoidable ambient air-pollutant exposure.

P-299 The influence of ovarian endometriomas surgery or not and the iron overload in follicular fluid on the outcome of IVF-ET

Abstract Study question To investigate the influence of ovarian endometriomas(OEM) surgery or not on the outcome of in vitro fertilization and embryo transfer. Summary answer Laparoscopic surgery can not significantly improve the outcome of IVF-ET in OEM patients, but may decrease the ovarian reserve. What is known already Despite the great advantages of ovarian endometriomas surgery treatment in endometriosis-linked infertility, the impact of laparoscopic cystectomy on outcomes of infertility management with ART is controversial. Numerous mechanisms have been proposed in an effort to delineate the multifaceted pathophysiology that induces impairment of reproductive dynamics in patients with OEM. Reactive oxygen species, dysregulation of the immune system and iron overload constitute the crucial mechanisms that detrimentally affect oocyte and embryo developmental potential. Study design, size, duration This study retrospectively included 882 cycles in our reproductive center from January 2018 to December 2020, and the patients were divided into operation group (n = 386) and OEM group (n = 496) according to whether they underwent laparoscopic cystectomy before IVF-ET. Participants/materials, setting, methods The baseline data of age, infertility duration, basic FSH, AFC, and BMI were used as matching factors, and Propensity score matching was carried out according to the sample ratio of 1:1, and 327 cycles in the operation group and 327 cycles in the OEM group were finally included. Follicular fluid was collected under ultrasound guidance during oocyte retrieval. A total of 74 follicular fluid samples meeting the study conditions were collected. Main results and the role of chance (1)The clinical pregnancy rate of fresh embryo transfer cycle in the OEM group was significantly higher than that in the operation group (77.4% Vs 52.9%), and the difference was statistically significant (P = 0.039). There was no significant difference in pregnancy outcome in frozen embryo transfer cycle (P &amp;gt; 0.05). (2) The results of Multi-factor logistic regression model showed the clinical pregnancy rate of patients in the OEM group was 3.048 times than that of patients in the operation group in fresh cycle, and the difference was significant (OR 3.029 95%CI 1.017-9.018, P = 0.047), while early abortion and live birth pregnancy outcomes were not significantly affected in both groups. For the frozen embryo transfer cycle, there were no significant effects on clinical pregnancy, early abortion and live birth pregnancy outcomes in both groups. (3) There was no significant difference in follicular fluid iron concentration between OEM group and control group(11.53±3.38 Vs 12.18±4.37μg/dl, P = 0.112). The concentration of ferritin in follicle fluid in OEM group (57.38±139.90) was significantly higher than that in control group (24.88±13.76 μg/ml), the difference was statistically significant (P = 0.032). Limitations, reasons for caution The present study being of a retrospective and monocentric study, may not come to a very convincing conclusion, and some unknown biases might still exist due to possible underestimation of some confounders. Wider implications of the findings Collectively, our results indicate that laparoscopic ovarian cystectomy couldn’t significantly improve the IVF-ET outcomes in patients with OEM, but rather increased the risk of reduced ovarian reserve function. Ovarian reserve function was the main factor affecting the IVF-ET outcomes for infertile patients with OEM. Trial registration number /

The effect of gonadotropin-releasing hormone agonist downregulation in conjunction with hormone replacement therapy on endometrial preparation in patients for frozen-thawed embryo transfer.

To investigate the effects of combining gonadotropin-releasing hormone agonist (GnRHa) downregulation with hormone replacement therapy (HRT, GnRHa-HRT) on the clinical outcomes of patients undergoing frozen-thawed embryo transfer (FET). In this retrospective study, we included patients who had FET between January 2018 and December 2022. They were categorized into HRT and GnRHa-HRT groups based on the endometrial preparation protocol. The study compared the clinical outcomes of patients in two groups. Possible factors affecting clinical outcomes were analyzed using univariate analysis. To analyze the impact of two endometrial preparation methods on clinical outcomes, multifactorial logistic regression was performed. The rates of clinical pregnancy (47.31% vs. 59.60%), embryo implantation (37.58% vs. 49.65%), biochemical pregnancy (52.36% vs. 64.31%), and early abortion (7.07% vs. 10.77%) were statistically different between the two groups (p < 0.05). Analysis using multifactorial logistic regression showed that there was a 1.65-fold increase in clinical pregnancy rates (OR = 1.65, 95% CI: 1.29-2.12, p < 0.001) and a 1.55-fold increase in embryo implantation rates (OR = 1.55, 95% CI: 1.27-1.90, p < 0.001) in the GnRHa-HRT group when compared to the HRT group. For blastocyst transfer, the clinical pregnancy and implantation rates of the GnRHa-HRT group were significantly higher than those of the HRT group (OR = 1.75, 95% CI: 1.30-2.37, p < 0.001; OR = 1.73, 95% CI: 1.35-2.21, p < 0.001). In FET cycles, leuprorelin (as a GnRHa) downregulation combined with HRT may improve the clinical outcome of patients compared to the HRT cycle, especially for the clinical pregnancy and embryo implantation rates of patients with blastocyst transfer.