Showing papers in "Current Opinion in Obstetrics & Gynecology in 2020"

Optimizing immunotherapy for gynecologic cancers.

Abstract: Purpose of reviewThis review will provide an update on the most recent clinical developments in immuno-oncology in advanced gynecologic cancers and will also highlight ongoing studies in this field.Recent findingsAlthough immune checkpoint blockade (ICB) therapy is rapidly altering the treatment lan

A new algorithm for the evaluation of recurrent pregnancy loss redefining unexplained miscarriage: review of current guidelines.

Abstract: Purpose of review Couples with recurrent pregnancy loss (RPL) are often referred to reproductive specialists to help determine the reason for their repeated losses This review will help to develop a strategy that is effective in providing a diagnosis, efficient to administer, and cost-effective to the healthcare system Recent findings International societies have published different recommendations for the evaluation of RPL, they consider it appropriate to initiate an evaluation after two (or three) clinical miscarriages On the contrary, the clinician who follows these guidelines will only be able to offer a possible explanation to fewer than half of the couples being evaluated Recently, genetic testing of miscarriage tissue using 24-chromosome microarray (CMA) analysis at the time of the second pregnancy loss coupled with testing based on society guidelines has been shown provide an explanation in more than 90% of cases Summary New guidelines for the complete evaluation of RPL should consider adding 24-CMA testing on the miscarriage tissue Providing couples with an explanation for recurrent loss assists them in dealing with the loss and discourages the clinician from instituting unproven therapies Truly unexplained pregnancy loss can be reduced to less than 10% with this new algorithm Incorporation of these strategies will result in significant cost savings to the healthcare system

Targeting human epidermal growth factor receptor 2 (HER2) in gynecologic malignancies.

Abstract: Purpose of review The purpose of this review is to describe the role of the human epidermal growth factor receptor 2 (HER2) as a biomarker and potential target in gynecologic malignancies and to describe contemporary updates in the use of anti-HER2 treatments for these cancers. Recent findings Approximately 25-30% of all patients with uterine serous carcinoma overexpress tumoral HER2. The anti-HER2 antibody trastuzumab represents an effective, targeted therapy with significant efficacy in the treatment of HER2-positive breast and gastric cancer. Recently, trastuzumab efficacy has also been demonstrated in a randomized controlled trial of women with advanced or recurrent uterine serous carcinoma. Additionally, trastuzumab may be effective in women with HER2-positive uterine carcinosarcoma. The role of anti-HER2 therapy is unclear in women with other gynecologic malignancies but is being evaluated. Summary HER2 amplification/overexpression is an effective therapeutic target in select gynecologic malignancies, and especially in the rare endometrial cancer subtype, uterine serous carcinoma. As anti-HER2-targeted therapies become increasingly available, more treatment options may become available for women with HER2-positive disease.

Latest clinical evidence of maintenance therapy in ovarian cancer.

Abstract: Purpose of reviewTo summarize the data supporting the use of maintenance therapy in ovarian cancer treatment.Recent findingsSince December 2016, the United States Food and Drug Administration has approved four drugs for six different ovarian cancer maintenance indications based on the results of cli

Determining diagnostic criteria and cause of recurrent implantation failure.

Abstract: Purpose of review Recurrent implantation failure (RIF) refers to the absence of implantation after repeated transfer of good embryos into a normal uterus. This review discusses the diagnostic criteria and cause of RIF. Recent findings Regardless of the advancements in IVF practice, RIF is still a challenge that has to be solved. Exact definition of RIF is lacking today. For the initial evaluation, a rigorous algorithmic evaluation should be compromised with an individualized principle. Factors that might affect the number and quality of the oocyte and sperm cells should be investigated in order to obtain a good-quality embryo. Embryo assessment should be performed under ideal laboratory circumstances. The uterine environment should be carefully evaluated and the embryo should be transferred into the uterus at the most receptive time. Some of the newly introduced diseases and empirical treatment strategies, such as chronic endometritis, vaginal microbiota, immunologic profile and immunomodulator treatments, can be discussed with the couple under the light of adequate evidence-based information. Summary New diagnostic and treatment modalities are needed to be introduced, which would be safe, efficient and efficacious after well-designed randomized controlled trials.

Mechanisms of PARP inhibitor resistance in ovarian cancer.

Abstract: Purpose of reviewTo summarize recently discovered PARP inhibitor resistance mechanisms and highlight the clinical relevance of these findings to date.Recent findingsA predominant mechanism of acquired PARP inhibitor resistance in homologous recombination-deficient cancers is the acquisition of homol

Extracellular vesicles as a potential diagnostic tool in assisted reproduction.

Abstract: Purpose of review Extracellular vesicles have emerged as a promising field of research for their potential to serve as biomarkers. In the pathophysiology of reproduction, they have attracted significant attention because of their diverse roles in gametogenesis and embryo-endometrial cross-talk. Advances in extracellular vesicle translational potential are herein reviewed with a particular focus in oocyte competence, semen quality diagnostics, embryo selection and detection of endometrial receptivity. Recent findings Specific miRNAs present in follicular fluid-derived extracellular vesicles have been associated with follicle development and oocyte maturation. Some proteins known to regulate sperm function and capacitation such as glycodelin, and CRISP1 have been found as overrepresented in semen exosomes isolated from severe asthenozoospermic compared to normozoospermic men. In vitro developed human embryos can secrete extracellular vesicles whose propitiousness for preimplantation genetic testing is being increasingly investigated. Endometrial cell-derived extracellular vesicles recovered from uterine flushings might represent a reservoir of molecular markers potentially exploited for monitoring the endometrial status. Summary Accumulated knowledge on extracellular vesicles deriving from endometrium, follicular fluid, embryos or male reproductive system may be translated to clinical practice to inform diagnostics in assisted reproduction technology (ART). Validation studies and technology developments are required to implement the profiling of extracellular vesicles as diagnostic tests in ART.

The vaginal microbiome as a tool to predict IVF success.

Abstract: Purpose of review Herein, we present an overview of the recent microbiome research and findings within the field of reproductive medicine and its relation with the outcome of Assisted reproductive technology (ART). Analyses of the microbiome composition all throughout the female reproductive trace during the process of assisted reproductive techniques are discussed. Recent findings Only the vaginal microbiome can be sampled without possible risks of contamination. Although this also seems to apply to the cervical microbiome, collection has to be performed with extreme caution. Because of the high risk of cross contamination, results of microbial composition of all other sites of the female reproductive tract have to be interpreted with caution. The vaginal composition prior to the start of hormonal treatment for ART seems to be predictive of in vitro fertilization/in vitro fertilizationintracytoplasmic sperm injection (IVF/IVF-ICSI) outcome, with mainly a highly negative predictive value. Summary The local microbiota, especially the absence or presence of specific microbes, within parts of the female reproductive tract seem to be associated with the outcome of ART.

Changing treatment landscape for early cervical cancer: outcomes reported with minimally invasive surgery compared with an open approach.

Abstract: PURPOSE OF REVIEW The aim of the article is to review recent studies that compare the oncologic efficacy of minimally invasive radical hysterectomy with that of open radical hysterectomy. RECENT FINDINGS The Laparoscopic Approach to Cervical Cancer (LACC) trial, a randomized study design to test the hypothesis that minimally invasive radical hysterectomy is not inferior to open radical hysterectomy, was stopped early by the data and safety monitoring committee after enrolling 631 of a planned 740 patients. The disease-free survival rate at 4.5 years was 86% among women assigned to minimally invasive surgery and 96.5% in those who underwent open surgery (hazard ratio [HR] 3.74; 95% confidence interval [CI] 1.63-8.58). Minimally invasive surgery was also associated with inferior overall survival (HR 6.00; 95% CI 1.44-12.7). Recent well designed, adequately powered observational studies mostly corroborate the findings of the LACC trial. SUMMARY After a decade of widespread acceptance and increasing popularity, the preponderance of evidence now suggests that minimally invasive radical hysterectomy for cervical cancer confers an excess risk of recurrence and death compared with open abdominal radical hysterectomy.

Ultrasound in the investigation of pelvic floor disorders.

Abstract: Purpose of review Translabial ultrasound with systems designed for obstetric imaging is now the commonest diagnostic modality in pelvic floor medicine. This review will outline current clinical utility and introduce recent research in the investigation of pelvic floor disorders, such as urinary and anal incontinence, pelvic organ prolapse, obstructed defecation and of complications after sling and mesh surgery. Recent findings There has been significant progress in standardization of imaging methods, and the International Urogynecology Association has developed an online course encouraging this standardization. Tomographic methods are increasingly used for imaging of the levator ani and anal canal. Several comparative studies have investigated concordance between tomographic translabial imaging and competing methods, and the widespread availability of equipment has facilitated interethnic comparative studies. Several meta- analyses have investigated risk factors for major pelvic floor trauma and the role of pelvic floor abnormalities in prolapse recurrence after surgery. Summary The widespread use of imaging has the potential to change the management of pelvic floor morbidity, such as urinary and anal incontinence, pelvic organ prolapse and related conditions. Even in units and locations where the required systems are not easily accessible, the insights provided by real-time imaging will enhance diagnostic and therapeutic capabilities.

Vitamin D supplementation during pregnancy: an overview.

Abstract: Purpose of review Examine recent evidence of randomized controlled trials and meta-analyses regarding the effect of maternal vitamin D status and supplementation over obstetrical and offspring outcomes. Recent findings Maternal serum 25-hydroxyvitamin [25(OH)D] progressively declines during pregnancy because of fetal physiological demands and adjustments. Vitamin D supplementation during pregnancy in women with low vitamin D status may improve fetal growth and reduce the risks for small-for-gestational-age, preeclampsia, preterm birth, and gestational diabetes. Mothers with sufficient vitamin D levels have offsprings with less enamel defects and less attention deficit and hyperactive disorders and autism. All pregnant women should be supplemented with 600 IU/day of vitamin D3. We discuss evidence indicating that higher vitamin D doses (1000-4000 IU/day) may be convenient to achieve better maternal and infant outcomes. Low maternal vitamin D status during pregnancy may be associated in infants with a higher risk for lower bone mineral content, enamel defects and attention deficit hyperactive disorder. Summary Recent evidence from vitamin D intervention studies and meta-analyses of a large number of studies support vitamin D supplementation during pregnancy to improve maternal, fetal and, immediate and later offspring health.

Enhanced recovery after surgery for cesarean delivery.

Abstract: Purpose of review The aim of this article is to describe enhanced recovery after surgery (ERAS) and its application to cesarean delivery. Recent findings ERAS is a standardized, multidisciplinary approach to improving the care of surgical patients, from the preoperative planning through the surgery and postoperative period. ERAS is associated with many benefits, including improved patient outcomes and satisfaction as well as reduced length-of-stay and cost. Obstetric implementation of ERAS protocols has lagged compared to other surgical subspecialties. Given the volume of cesarean deliveries worldwide, improving the quality and cost of care through broad application of ERAS could have significant benefits. Summary ERAS pathways specific to cesarean delivery should be implemented and can improve the quality of care provided.

Hysteroscopic endometrial resection vs. hysterectomy for abnormal uterine bleeding: impact on quality of life and sexuality. Evidence from a systematic review of randomized controlled trials.

Abstract: Purpose of review The aim of this systematic review is to summarize the current evidence regarding the effectiveness of hysterectomy and hysteroscopic endometrial resection in improving quality of life (QoL), sexual function and psychological wellbeing of women abnormal uterine bleeding. Recent findings We performed a systematic literature search in PubMed/MEDLINE and Embase for original studies written in English (registered in PROSPERO 2019 CRD42019133632), using the terms 'endometrial ablation', 'endometrial destruction', 'endometrial resection', 'hysterectomy', 'menorrhagia', 'dysfunctional uterine bleeding', 'quality of life', 'sexuality' published up to April 2019. Our literature search produced 159 records. After exclusions, nine studies were included showing the following results: both types of treatment significantly improve QoL and psychological wellbeing; hysterectomy is associated with higher rates of satisfaction; hysterectomy is not associated with a significant deterioration in sexual function. Summary Hysterectomy is currently more advantageous in terms of improving abnormal uterine bleeding and satisfaction rates than hysteroscopic endometrial destruction techniques. Furthermore, there is some evidence of a greater improvement in general health for women undergoing hysterectomy. However, high-quality prospective randomized controlled trials should be implemented to investigate the effectiveness of hysterectomy and endometrial ablation in the improvement of QoL outcomes in larger patient cohorts.

Endometrial cancer in the morbidly obese: a review

Abstract: Purpose of review With a worldwide increase in obesity, there has been an increase in obesity-related diseases. Endometrial cancer is a common cause of cancer for women worldwide. Incidence of endometrial cancer has risen worldwide. Accompanying these patients are risk factors and challenges that may prevent standard of care from being delivered. Recent findings The current article describes recent literature describing surgical approaches to the obese patient and special considerations in this population. This article also reviews bariatric surgery and endometrial cancer as well as new updates in radiation, chemotherapy and hormonal therapy research in the obese population. Summary The current article reviews therapeutics and surgery in the morbidly obese for the treatment of endometrial cancer.

Comprehensive review of pelvic congestion syndrome: causes, symptoms, treatment options

Abstract: Purpose of review The purpose of this publication is to review the currently available and most up-to-date information regarding the pathogenesis, diagnosis, and treatment of pelvic congestion syndrome. Recent findings The diagnosis of pelvic congestion syndrome is difficult to make; however, it should remain on the differential for chronic pelvic pain. The most recent available research seems to favour endovascular treatment with interventional radiology over surgical management, with high success rate and low occurrence of complications. Summary High-level evidence on the diagnosis and management of pelvic congestion syndrome is lacking. Only a small number of randomized controlled trials exist. More high-quality research is needed, particularly involving practicing obstetrician and gynecologists as the majority of these patients, and the clinical outcomes of any interventions implemented for pelvic congestion syndrome are ultimately managed by OB/GYN providers.

An updated guide to the diagnosis and management of cesarean scar pregnancies.

Abstract: Purpose of review To review the current literature on the diagnosis and management of cesarean scar pregnancies RECENT FINDINGS: The incidence of cesarean scar pregnancies (CSPs) is increasing as a result of the increasing cesarean section rate, improved diagnostic capabilities, and a growing awareness. CSPs are associated with significant morbidity and early diagnosis is key. Diagnosis is best achieved with transvaginal ultrasound. Sonographic diagnostic criteria have been developed over decades and recently endorsed by the Society for Maternal-Fetal Medicine and other professional societies. The current categorization system differentiates CSPs that are endogenic or 'on the scar' from those that are exogenic or 'in the niche'. Following diagnosis, the challenge remains in determining the optimal management as multiple modalities can be considered. Studies have demonstrated the favorable outcomes with combined local and systemic methotrexate, surgical excision through multiple routes, and adjunctive therapies, such as uterine artery embolization or uterine balloons. The current evidence is insufficient to identify a single best treatment course and a combined approach to treatment is often required. Summary Successful outcomes while minimizing complications can be achieved with a multidisciplinary, collaborative effort. Guidelines for cesarean scar pregnancies will continue to evolve as the published reports grow.

Preconception diet, fertility, and later health in pregnancy.

Abstract: Purpose of review Women should enter pregnancy in the best possible health. There is increasing recognition of the importance of nutrition for reproductive health; however, key dietary factors in relation to optimizing fertility are nonexistent. The purpose of this review is to investigate dietary factors, preconception, and the association with fertility and later health in pregnancy. Recent findings This article summarizes recent literature assessing preconception dietary intake and the association with fertility, time to pregnancy, and also the relationship with polycystic ovary syndrome and gestational diabetes; these conditions associate with each other, and also with infertility. The impact of paternal diet is also reported. Summary There is recent interest investigating diet and time to pregnancy, suggesting higher intakes of fruit, minimal intake of fast food and sugar sweetened beverages, and a diet lower in glycemic load, may improve time to pregnancy. There is minimal recent literature on paternal diet and impact on fertility. Present advice to women with polycystic ovary syndrome is in line with international recommendations for lifestyle management to improve reproductive outcomes; and for gestational diabetes, prepregnancy may be an optimal time to improve dietary intakes, particularly through consumption of an overall healthy dietary pattern or a Mediterranean-style dietary pattern.

The impact of race on hysterectomy for benign indications.

Abstract: Purpose of review To review current literature evaluating racial disparities in benign hysterectomy care in the United States. Recent findings Evidence shows that black women are half as likely to undergo minimally invasive hysterectomy and have an increased risk of surgical complications compared with white women. Patient level differences including fibroids, prior surgical history, medical comorbidities, and obesity have been implied to account for the increased rate of abdominal hysterectomy in black patients; however, inequalities remain even after controlling for clinical differences. Societal factors including insurance status fail to fully account for disparities, though healthcare system factors, such as geographical region and access to a minimally invasive trained surgeon, continue to have a profound impact on the equity of care that patients receive. Summary Disparities in hysterectomy route and outcomes by race and socioeconomic status exist and have persisted in the literature for over a decade despite a nationwide trend toward minimally invasive hysterectomy and improving surgical outcomes. These disparities are not fully accounted for by patient or health system factors. Successfully addressing these disparities will require a multipronged approach, which may include improved surgical training for residents, fellows, and practicing gynecologists, increasing referrals to high-volume minimally invasive gynecologic surgeons, and provider and patient education.

Multimodality screening and prevention of cervical cancer in sub-Saharan Africa: a collaborative model.

Abstract: Purpose of review Although cervical cancer continues to decrease in incidence throughout the developed world because of rigorous screening and vaccination campaigns, the disease remains a major cause of cancer-related morbidity and mortality in resource-limited regions including sub-Saharan Africa. This review summarizes current efforts to implement cost-effective and widespread cervical cancer education, screening, and community-based interventions in Africa and the challenges faced by local healthcare workers. Recent findings Effective screening with cytology (with or without high-risk human papillomavirus [HPV] DNA testing) as well as HPV self-sampling remains problematic in African countries because of a paucity of cytopathologists and resources. Accordingly, visual inspection of the cervix with acetic acid (VIA) with cryotherapy triage has gained traction in mass-screening campaigns because of low-cost supplies. Summary Public education to facilitate screening is essential. VIA remains a strong community-based approach. The involvement of technology in teaching local providers, advertising screenings to the community, and helping improve follow-up may also improve screening efforts. Ultimately, the best form of prevention is through HPV vaccination, which also requires implementation of ongoing public education programs.

Predicting fetoplacental mosaicism during cfDNA-based NIPT.

Abstract: Purpose of review Cell-free DNA-based noninvasive prenatal testing (cfDNA-based NIPT) using maternal blood is highly sensitive for detecting fetal trisomies. However, false-positive and false-negative results can occur, which prevents NIPT from being a diagnostic test. Fetoplacental mosaicism is one of the main reasons for discordant test results. It is therefore important to understand this phenomenon to enable more comprehensive and appropriate genetic counselling. The present review aims to summarize the current knowledge of fetoplacental mosaicism ascertained during cfDNA-based NIPT and refers to the development of recent analytical pipelines for its detection during pregnancy. Recent findings Publications are emerging demonstrating that genome-wide approaches to analyzing cfDNA can detect chromosomal aneuploidy other than the common trisomies. Despite the high accuracy of current cfDNA-based NIPT, a substantial number of false-positive and false-negative test results remain. Biological causes, such as fetal or (confined) placental mosaicism have been identified using advanced bioinformatics algorithms. Fetoplacental mosaicism can occur as part of normal pregnancy development, hence clinical practice standards recommend confirmation of positive NIPT results with a diagnostic karyotype or microarray study. Summary cfDNA-based NIPT for fetal chromosomal aneuploidies is not diagnostic because of false-positive and false-negative test results. Recently, novel algorithms have been described that identify pregnancies with an increased risk of fetoplacental mosaicism. Reporting the presence of fetoplacental mosaicism during pregnancy can influence risk estimation and improve genetic counseling.

Non-hormonal mediators of uterine fibroid growth.

Abstract: Purpose of review Uterine fibroids are the most common benign neoplasms of the female reproductive tract and one of the major public health concerns. Although most women with uterine fibroids are asymptomatic, over 30% of them will present with varying symptoms. This review focuses on the role of non-hormonal mediators and pathways in uterine fibroid biology. Furthermore, it provides data regarding the most recent findings in the field of compounds, which use those non-hormonal pathways in the medical therapy of uterine fibroids. Recent findings Complex signaling pathway alterations are crucial for uterine fibroid development. The topic of the pathophysiology of uterine fibroids focuses mostly on steroids and other hormones. However, other very important pathways exist, and some of them are independent of hormones. Some of the most important pathways, which are non-hormonal, but in some cases still hormone-depended, include growth factors, cytokines and inflammation, Smad proteins, wingless type/β-catenin and others. Summary Much more is known about hormonal than about non-hormonal signaling in uterine fibroids. Growth factors, early life exposure and inflammation are key factors in uterine fibroid biology. Numerous agents depend on those pathways and may find their place in the current and future therapy of uterine fibroids.

The accuracy of haemoglobin A1c as a screening and diagnostic test for gestational diabetes: a systematic review and meta-analysis of test accuracy studies.

Abstract: PURPOSE OF REVIEW: Gestational diabetes mellitus (GDM) is associated with adverse pregnancy complications. Accurate screening and diagnosis of gestational diabetes are critical to treatment, and in a pandemic scenario like coronavirus disease 2019 needing a simple test that minimises prolonged hospital stay. We undertook a meta-analysis on the screening and diagnostic accuracy of the haemoglobin A1c (HbA1c) test in women with and without risk factors for gestational diabetes. RECENT FINDINGS: Unlike the oral glucose tolerance test, the HbA1c test is simple, quick and more acceptable. There is a growing body of evidence on the accuracy of HbA1c as a screening and diagnostic test for GDM. We searched Medline, Embase and Cochrane Library and selected relevant studies. Accuracy data for different thresholds within the final 23 included studies (16 921 women) were pooled using a multiple thresholds model. Summary accuracy indices were estimated by selecting an optimal threshold that optimises either sensitivity or specificity according to different scenarios. SUMMARY: HbA1c is more useful as a specific test at a cut-off of 5.7% (39 mmol/mol) with a false positive rate of 10%, but should be supplemented by a more sensitive test to detect women with GDM.

Gynecologic surgery tracking in obstetrics and gynecology residency.

Abstract: Purpose of review This review aims to describe the influence of changes in obstetrics and gynecology on residency training and how tracking may help address emerging concerns around quality and safety in gynecologic surgery. Recent findings As has been shown in a variety of other surgical fields, recent evidence confirms that surgeries with higher volume gynecologists are associated with fewer complications, decreased cost, and an increase in use of minimally invasive surgery. Attending physicians and residents feel graduating obstetrics and gynecology (OB/GYN) trainees are unprepared to perform major surgery independently. Tracking has demonstrated tremendous success in general surgery, enriching trainee careers, allowing for increased operative and clinical experiences, enhancing autonomy, and improving mentorship, all while achieving equivalent or improved milestone achievement, case numbers, and board certification. A majority of medical students, residents, and OB/GYN residency program directors support tracking in OB/GYN. Currently, a single OB/GYN program provides tracking in the United States, with measurable success similar to that seen in general surgery. Summary Enhanced surgical volume results in better outcomes in gynecologic surgery, but current training models are insufficient to meet these volume demands. Tracking provides an attractive solution to create a more appropriate practicing model for physicians in women's health.

Updates in uterine artery embolization for leiomyomas.

Abstract: Purpose of review Uterine leiomyomas are a common condition estimated to affect 70-80% of reproductive-aged women. An evolving body of evidence continues to guide our understanding of various surgical and interventional treatment options, such as uterine artery embolization (UAE). This article provides an updated review of novel findings regarding UAE. Recent findings Despite an abundance of observational studies and several small randomized controlled trials, large scale long-term comparative efficacy studies are lacking. Although short-term outcomes continue to be favorable, recent trials show reoperation rate of up to 35% in 10 years and may raise some concerns regarding ovarian reserve, fertility and pregnancy outcomes. Summary UAE remains a safe and effective alternative to surgery in the management of leiomyomas. A deeper investigation into understanding this treatment's optimal use in various patient populations is needed.

Diagnosing endometriosis before laparoscopy: radiologic tools to evaluate the disease.

Abstract: Purpose of review The current gold standard for diagnosing endometriosis is laparoscopy with tissue biopsy. This review presents new evidence regarding advanced imaging for more optimal clinical assessment and preoperative evaluation for endometriosis. Recent findings A systematic approach to the imaging evaluation of endometriosis using transvaginal ultrasound and magnetic resonance imaging has been proposed by expert groups and societies. Evidence suggests that new imaging techniques improve the accuracy of clinical diagnosis and facilitate improved preoperative mapping of endometriotic lesions. Summary The clinical diagnosis of endometriosis, including new structured imaging protocols and techniques, is paramount in an initial evaluation. If surgery is indicated, clinical examination and imaging should provide sufficient information to anticipate the extent of surgery, properly counsel the patient, and when appropriate, refer to a minimally invasive gynecologic surgery specialist or assemble a multidisciplinary team.

Standardizing abortion education: what medical schools can learn from residency programs.

Abstract: Purpose of review With over 50 million abortions annually and 25% of pregnancies ending in abortion worldwide, abortion is one of the most common medical procedures. Yet abortion-related topics are glaringly absent from medical school curricula in the USA with half of medical schools including no formal training or only a single lecture. We explore abortion education in US medical schools and Obstetrics and Gynecology (Ob/Gyn) residency programs. Specifically, we review efforts to improve and standardize this training. Recent findings Despite documented interest in both learning and in the benefits of early exposure, medical students face a lack of educational opportunities in abortion care. Meanwhile, Ob/Gyn residency has standardized requirements for abortion care, greatly improving training and education, despite persistent challenges in universal compliance with these standards. Summary Education in abortion care is crucially important in fostering and training future abortion providers, thereby ensuring and expanding access to safe abortion. The improvements made by standardizing abortion education in Ob/Gyn residency should encourage similar efforts in medical school in order to increase earlier and wider exposure to future physicians of all specialties. On a national level, standardizing exams for medical students by which to evaluate their understanding of abortion care would hold schools accountable for medical student education.

Frozen embryo transfer and preeclampsia: where is the link?

Abstract: Purpose of review Preeclampsia is the leading cause of maternal death and has a higher incidence in patients undergoing assisted reproduction treatments. New studies about the mechanisms by which it is more frequent in this population have emerged. The purpose of this review is to gather current information about the available results on this correlation and its possible physiopathology. Recent findings Recent publications on the physiopathology of preeclampsia indicate that the corpus luteum is the main source of hormonal production until placental formation and that apart from the secretion of estrogen and progesterone, corpus luteum also produces important substances involved in maternal circulatory adaptation, such as relaxin.With the recent increasing number of frozen embryos transfer in natural cycles or under hormonal replacement, this adaptive circulatory process may be unbalanced and predispose this population to preeclampsia. Summary This article provides a review of frozen embryo transfer and available protocols, the highest incidence of gestational hypertensive disorders presented by the infertile population and an overview of the possible impact of the absence of corpus luteum on the genesis of this disease.

Fetal surgery and stem cell therapy for meningomyelocele.

Abstract: Purpose of review To review the advance of maternal--fetal surgery, the research of stem cell transplantation and tissue engineering in prenatal management of fetal meningomyelocele (fMMC). Recent findings Advance in the imaging study provides more accurate assessment of fMMC in utero. Prenatal maternal--fetal surgery in fMMC demonstrates favourable postnatal outcome. Minimally invasive fetal surgery minimizes uterine wall disruption. Endoscopic fetal surgery is performed via laparotomy-assisted or entirely percutaneous approach. The postnatal outcome for open and endoscopic fetal surgery shares no difference. Single layer closure during repair of fMMC is preferred to reduce postnatal surgical intervention. All maternal--fetal surgeries impose anesthetic and obstetric risk to pregnant woman. Ruptured of membrane and preterm delivery are common complications. Trans-amniotic stem cell therapy (TRASCET) showed potential tissue regeneration in animal models. Fetal tissue engineering with growth factors and dura substitutes with biosynthetic materials promote spinal cord regeneration. This will overcome the challenge of closure in large fMMC. Planning of the maternal--fetal surgery should adhere to ethical framework to minimize morbidity to both fetus and mother. Summary Combination of endoscopic fetal surgery with TRASCET or tissue engineering will be a new vision to achieve to improve the outcome of prenatal intervention in fMMC.

Mitochondrial function in women with polycystic ovary syndrome

Abstract: Purpose of review To provide an overview of mitochondrial functional alterations in women with polycystic ovary syndrome (PCOS). Recent findings Although numerous studies have focused on PCOS, the pathophysiological mechanisms that cause this common disease remain unclear. Mitochondria play a central role in energy production, and mitochondrial dysfunction may underlie several abnormalities observed in women with PCOS. Recent studies associated mtDNA mutations and low mtDNA copy number with PCOS, and set out to characterize the potential protective role of mitochondrial and endoplasmic reticulum unfolded protein responses (UPR and UPR). Summary Mitochondrial dysfunction likely plays a role in the pathogenesis of PCOS by increasing reactive oxygen (ROS) and oxidative stress. This occurs in a metabolic milieu often affected by insulin resistance, which is a common finding in women with PCOS, especially in those who are overweight or obese. Mutations in mtDNA and low mtDNA copy number are found in these patients and may have potential as diagnostic modalities for specific PCOS phenotypes. More recently, UPR and UPR are being investigated as potential cellular rescue mechanisms in PCOS, the failure of which may lead to apoptosis, and contribute to decreased reproductive potential.

Induction of labor with an unfavorable cervix.

Abstract: Purpose of review Recent evidence supports elective induction of labor after 39 weeks; however, labor induction in patients with an unfavorable cervix, a Bishop score less than 6, may take several days. In this review, we focus on the efficacy and safety of methods of labor induction for the unfavorable cervix. Recent findings Recent evidence on the use of mechanical cervical preparation with transcervical balloons suggests balloons are the most effective option for decreasing time to delivery in the nulliparous patient. Single and double balloons are equally effective, with a volume of more 30 ml being more effective. The addition of misoprostol or oxytocin concurrently with a balloon further expedites time to delivery. Summary Mechanical dilation should be considered when available and technically possible for labor induction in patients with an unfavorable cervix. Misoprostol is an effective adjunct to trans-cervical balloons, further decreasing time to delivery as compared with balloon alone. When misoprostol is contraindicated, oxytocin is a safe, effective, alternative adjunct to trans-cervical balloons. More research is needed to evaluate safe outpatient options, induction methods in the setting of prior cesarean with an unfavorable cervix, and to directly compare misoprostol with oxytocin as adjuncts to transcervical balloons.