Post-term Research Articles

Morphofunctional features of the fallopian tubes. Modern concepts

The article provides an overview of the modern literature covering the role of the fallopian tubes in reproduction. The understanding of the anatomy and functions of the fallopian tubes has changed several times over the centuries. There is still no generally accepted opinion regarding some of the features of their structure. The normal functioning of the fallopian tubes is possible only due to the complex interaction of physical and biochemical processes occurring therein. In recent years, many discoveries have been made regarding the fallopian tubes that showed that we still do not know all the details of how this organ works. There are several basic methods for assessing the functions of the fallopian tubes, but all of them have their drawbacks and are of limited use, which is why it can sometimes be quite difficult to get a complete picture of the organ’s functioning. Modern discoveries and the introduction of new techniques into practical work can significantly expand the doctor’s capabilities in treating infertility associated with the tubal factor. The current knowledge about the anatomical, functional and morphological features of the fallopian tubes emphasizes the importance of this organ in the implementation of the woman’s reproductive function. It is generally believed that the role of the fallopian tubes in conception is secondary and unimportant in comparison with the tasks performed by the uterus and ovaries. The importance of the fallopian tubes is most often mentioned in the literature in no more than a few paragraphs, where it is said only that the egg moves through them to the uterine cavity. However, modern research proves that complex processes and interactions occur in the organ that maintain homeostasis therein. After all, only the totality of the preserved function of each of the organs of the female reproductive system can ensure the onset and prolongation of future pregnancy.

Primary and secondary cerclage in high-risk pregnant women: Influence on prolongation of pregnancy and preterm birth

The aim of the study was to evaluate the effectiveness of cerclage in women with previous late miscarriages or premature births. The primary aim was to prolong pregnancy and achieve a term delivery. Secondarily, it was investigated whether an intervention after an early pathological 75-g-oGTT result influences these endpoints. A total of 133 cases were analyzed retrospectively. 80 women underwent primary cerclage between the 14th and 16th week of pregnancy; 53 women underwent secondary cerclage after cervical shortening of less than 25 mm. This group was further subdivided into therapeutic and emergency cerclage groups. Women with early pathologic 75-g-oGTT were treated diabetologically. Primary cerclage prolonged pregnancy by 20.6 weeks and led to a term delivery in 51 women (63.8%). In the group with secondary cerclage, 25 women (47.2%) had a term delivery with a prolongation of 20.1 weeks. For amniotic sac prolapse, the prolongation was 7.9 weeks. Pathological 75-g-oGTT results were found in 63 women. Early intervention had no significant effect on prolongation and term delivery. Primary cerclage was more effective in achieving term delivery. Women with therapeutic cerclage without amniotic sac prolapse also benefited. With cervical shortening without prolapse, the prolongation was the same in both groups. The worst outcome was observed in emergency cerclage with amniotic sac prolapse. An early 75-g-oGTT is important in order to recognize and treat gestational diabetes in time.

Incidence of and Risk Factors for the Failed Induction of Labour-A Prospective Observational Study

Introduction: Induction of labor (IOL) is an artificial stimulation of uterine contraction at 28 or more weeks of gestation but before spontaneous onset of labor to achieve vaginal delivery and it is a common practice in current obstetrics. IOL is a life-saving obstetrical intervention indicated only when the benefits of discontinuing the pregnancy outweigh the risks of continuation. Objective: To study the incidence of and risk factors for the failed induction of labour. Methodology: This is a prospective observational study conducted at Dept. of Obst & Gynae, Shaheed Tazuddin Ahmad Medical College & Hospital, Gazipur, Bangladesh from January to June 2022. Total 120 woman who were induced with dinoprostone gel and who ended up with caesarian section were included in the study. Factors which might be responsible for the failed labor induction were assessed. Women who were taken up for caesarian section for fetal distress were excluded from the study. Results: Total 120 women with failed labour induction were included in the study, and we found that majority of the women were primiparous (75%), in the age group of 25 to 29 years (60.8%), and we found that most common indication of doing IOL is post-dated pregnancy (30%). Unfavorable cervix with bishop’s less than 5 was found in majority of the cases (28.3%). Other factors were gestational hypertension (19.1%), IUGR (10%), prolonged PROM (8.3%), gestational diabetes mellitus (8.3%), Rh negative pregnancy (3.3%). Conclusion: Induction of labour is an important obstetric procedure. There is a need to develop a protocol for the same. The success of induction of labour is determined by many maternal and fetal factors, which must all be taken into account to avoid unnecessary cesarean sections.

To examine the outcomes of induction of labour in post term pregnancy presenting at a tertiary care hospital

To examine the outcomes of induction of labour in post term pregnancy presenting at a tertiary care hospital

Abnormal AFI and Its Implications on Fetomaternal Outcome

Background: The AFI is directly associated with adverse outcomes for both the mother and the foetus; oligohydramnios (AFI ≤8 cm) and polyhydramnios (AFI ≥25 cm) are considered ‘abnormal’. The aim of this study was to compare the maternal and foetal complications in full-term pregnancies with abnormal AFI, as well as to assess the effectiveness of ultrasound and Doppler in identifying possible threats that may affect delivery plans. Methods: The current observational study was conducted in a hospital context at Paropakar Maternity and Women’s Hospital located in Kathmandu, Nepal between October 2019 and February 2020. This study investigates the maternal and fetal outcomes associated with polyhydramnios and oligohydramnios in 60 cases of pregnancy. Data on maternal and foetal results, including the type of birth, problems, and neonatal APGAR ratings, were collected and evaluated. Continuous variables were described as mean ± SD, while categorical data were expressed in percentage. Results: The prevalence of polyhydramnios was 2% and oligohydramnios was 5.33%. Common maternal complications included preeclampsia, postpartum hemorrhage, and gestational hypertension, while fetal outcomes included low APGAR scores, low birth weight, and NICU admissions. Oligohydramnios was found to be predominantly associated with post-term pregnancies (36.36%) and preterm premature rupture of membranes (13.63%), which led to a higher frequency of caesarean sections (70.46%) when compared to polyhydramnios cases. Conclusion: Our findings suggest that ultrasound and Doppler assessments are crucial in identifying high-risk pregnancies and making appropriate delivery decisions to improve maternal and fetal outcomes."

A cohort study of the occurrence of post-term births and its association with perinatal mortality in a rural area in Bangladesh.

We aimed to evaluate the trend of post-term births over time and their association with perinatal mortality based on prospective pregnancy cohorts in a rural area in Bangladesh. This cohort study included 72 373 singleton births with gestational ages ≥28 weeks recorded by a health and demographic surveillance system from 1990 to 2019 in Matlab, Bangladesh. We expressed the gestational age as X (weeks) + Y (days)/7 weeks, where X indicated complete weeks, and Y presented the number of completed days out of seven days or a week. Using Poisson regression with robust variances, we estimated the population-based proportion of post-term births and assessed the association between gestational age categories and perinatal mortality. We presented results by adjusted relative risk (aRR) with 95% confidence intervals (CIs). Post-term births declined from 5.8% in 1990 to 2.8% in 2019. Perinatal mortality declined from 58 to 27 per 1000 births from 1990 to 2019. Compared to full-term births (39 + 0/7 to 40 + 6/7 weeks), the aRRs of perinatal mortality were 1.39 for late-term (41 + 0/7 to 41 + 6/7 weeks) and 1.93 for post-term (≥42 + 0/7 weeks) births. The population-attributable fraction of perinatal mortality was 15% for births at ≥41 + 0/7 weeks out of the total perinatal deaths occurring at ≥39 gestation weeks. In this rural setting in Bangladesh, we observed a decline in post-term birth proportions from 1990 to 2019. We found increased perinatal mortality when pregnancy continued beyond 40 + 6/7 weeks of gestation. This implies that planning the management of pregnant women approaching the post-term period may be needed to further improve perinatal health outcomes.

Retracted: Safety and efficacy of titrated oral misoprostol solution versus vaginal dinoprostone for induction of labor: A single-center randomized control trial.

X. Wang, C. Zhang, Xia Li, H. Qi, Q. Liu, and J. Lei, "Safety and Efficacy of Titrated Oral Misoprostol Solution Versus Vaginal Dinoprostone for Induction of Labor: A Single-Center Randomized Control Trial," International Journal of Gynecology & Obstetrics 154, no. 3 (2021): 436-443. https://doi.org/10.1002/ijgo.13546. The above article, published online on 17 December 2020, in Wiley Online Library (wileyonlinelibrary.com), and has been retracted by agreement between the journal Editor-in-Chief, Professor Michael Geary; the International Federation of Gynecology and Obstetrics; and John Wiley and Sons Ltd. A third party raised concerns regarding errors in the reported data and statistics of the article. An external statistician reviewed the data and was not able to reproduce the listed results for the Bishop score, the post-term pregnancy variable, the gestational hypertension variable, the not using insulin variable, the vaginal delivery variable, and the failed induction variable. In addition, the journal detected numerical errors in Table4, with contradictions between frequencies and reported percentages. The authors did not respond to multiple requests for an explanation and the original data. The editors have determined that the large number of errors identified and lack of original data provided fundamentally compromise the results presented, which necessitates retraction. The authors did not respond to our notice regarding the retraction.

Determinants of macrosomia among newborns delivered in Jigjiga City, Eastern Ethiopia: a case-control study

BackgroundMacrosomia is a forgotten health problem that directly or indirectly affects maternal and neonatal health outcomes. There is a lack of evidence on the factors that affect macrosomia in eastern Ethiopia. This study aimed to assess the determinants of macrosomia among newborns delivered in Jigjiga City, Eastern Ethiopia.MethodsAn institutional-based case-control study was conducted among 82 cases and 164 controls in Jigjiga City from June 25 to August 24, 2023. Bivariable and multivariable logistic regression were used to identify the determinants of macrosomia. An adjusted odds ratio (AOR) with a 95% confidence interval was used to report the strength of the association, and the statistical significance was declared at a p-value < 0.05.ResultsThis study found that lack of preconception care (AOR = 2.48, 95% CI: 1.29, 4.76); post-term pregnancy (AOR = 2.90, 95% CI: 1.16, 7.28); inadequate physical activity (AOR = 3.52, 95% CI: 1.55, 7.98), having previous macrosomia (AOR = 4.52, 95% CI: 2.18, 9.36), and gestational diabetic mellitus (AOR = 2.58, 95% CI: 1.10, 6.28) were the main risk factors of macrosomia.ConclusionThis study indicated that failed utilization of preconception care, inadequate physical activity during pregnancy, post-term pregnancy, gestational diabetic mellitus, and having previous macrosomia were the risk factors for fetal macrosomia. Encouraging women to utilize reproductive health services and providing special care for high-risk mothers are essential to reducing and preventing the level of fetal macrosomia and its consequences.

Association and mediation pathways of maternal hyperglycaemia and liability to gestational diabetes with neonatal outcomes: A two-sample Mendelian randomization study.

Maternal hyperglycemia is linked to adverse neonatal outcomes. However, current evidence was insufficient for mechanistic pathways. We aim to use two-sample Mendelian randomization (MR) to obtain a comprehensive understanding of the causal association and mediation pathways. Genetic variants of fasting glucose (FG), insulin sensitivity index (ISI), glycated haemoglobin (HbA1c), gestational diabetes mellitus (GDM) and type 2 diabetes (T2D) were used as instruments (N = 50 404-898 130). The associations with offspring birthweight, gestational duration, spontaneous preterm and post-term birth were assessed by the inverse-variance weighted method, using summary statistics of European genome-wide association studies (N = 131 279-210 248). Sensitivity analyses, including multivariable MR removing pleiotropic effect from maternal body mass index (BMI), assessed the robustness. Mediation via placental weight and maternal hypertension were assessed via a two-step MR design. FG (0.46 SD per mmol/L, 95% confidence interval [95% CI]: 0.32, 0.61) and GDM liability (0.18 SD per log odds, 95% CI: 0.08, 0.18) were positively associated with birthweight, with consistent findings for HbA1c, T2D liability and ISI. These associations were mediated by placental weight (proportion mediated: 32.8% to 77.7%). Higher HbA1c, GDM and T2D liability were associated with preterm birth (odds ratios for GDM: 1.07, 95% CI: 1.01, 1.14) and shorter gestational duration, whilst the association for T2D attenuated after adjusted for maternal BMI and gestational hypertension. Maternal hyperglycemia is associated with higher birthweight (possibly indicating macrosomia), mediated via increased placental growth. GDM and T2D liability are related to preterm birth, whilst the association for T2D liability is driven by maternal adiposity.

Perinatal death in the Nordic countries in relation to gestational age: The impact of registration practice.

Although perinatal death rates in the Nordic countries are among the lowest in the world, the risk of perinatal death is unevenly distributed across the Nordic countries, despite similarity in health care systems and pregnancy care. Birth registration practices across countries may explain some of the differences. We investigated differences in national registration of perinatal mortality within the Nordic countries and its impact on perinatal mortality according to gestational age. Each country provided information by answering a questionnaire about registration of perinatal deaths. Furthermore, we collected aggregated count data based on Medical Birth Registries (MBR) from all Nordic countries in 2000 to 2021. Perinatal mortality was defined as stillbirth or neonatal death occurring within first 7 days of life. Data were grouped into six groups by gestational age (GA): extremely preterm (>28 + 0 weeks, subdivided into 22 + 0-23 + 6 and 24 + 0-27 + 6), very preterm (GA 28 + 0-31 + 6), moderate preterm (GA 32 + 0-33 + 6), late preterm (GA 34 + 0-36 + 6), term (GA 37 + 0-40 + 6) and late term or post-term birth (GA ≥ 41 + 0). Perinatal mortality rate and risk ratio with 95% confidence intervals were calculated per country for each gestational age group. For Denmark, separate analyses included and excluded induced abortions. The study included 6 343 805 live births, 22 727 stillbirths and 8932 liveborn infants who died within the first week of life after GA 22 + 0. Further 25 057 births were included with GA < 22 + 0, unknown GA and as a result of induced abortion. Overall, perinatal mortality rates decreased during year 2000-2021 in all Nordic countries. After exclusion of induced abortions, the perinatal mortality rate was similar in the five Nordic countries. The perinatal mortality rate for extremely preterm born infants was highest in Denmark, whereas the highest rate among infants born late term/post-term was in Sweden. The perinatal mortality rate in the Nordic countries is still decreasing, especially in the group of extremely preterm born infants. This study supports the need for further standardization of birth registration practices to ensure the validity of international comparisons.

TREATMENT OF EARLY-ONSET FETAL GROWTH RESTRICTION WITH LOW MOLECULAR WEIGHT HEPARIN DOES NOT PROLONG GESTATION: A RANDOMIZED CLINICAL TRIAL

Although there is a biological basis for it, there is scarce evidence on the effect of heparin in ameliorating placental insufficiency and maximizing gestational age at delivery among fetal growth restriction (FGR) pregnancies. To explore the effectiveness of treatment using low molecular weight heparin (LMWH) at a prophylactic dose started at the time of diagnosis in prolonging gestation in pregnancies with early-onset fetal growth restriction (FGR). This was a phase III, multicenter, triple-blind, parallel-arm randomized clinical trial conducted in two university hospitals in Spain. Singleton pregnancies qualifying for early-onset placental FGR according to the adapted Delphi consensus (20+0-31+6 weeks at diagnosis with umbilical artery Doppler with absent/reversed diastolic flow; or estimated fetal weight <10th percentile plus pulsatility index (PI) of umbilical artery Doppler >95th percentile; or estimated fetal weight <10th percentile plus mean PI of uterine artery Doppler >95th) were randomized to receive either subcutaneous treatment with bemiparin 3500 IU/0.2 mL/day or a placebo from inclusion at diagnosis to the time of delivery. The primary outcomes were prolongation of pregnancy from inclusion to live birth (days) and gestational age at live birth (days). 49 patients were included (23 in the LMWH group and 26 in the placebo group). In the LMWH group, the median prolongation of pregnancy was 42 days, while in the placebo group it was 41.5 days (median difference 0.5 days [95% CI -22.7 to 6.3] (p=0.667) and in the LMWH group, the median gestational age at delivery was 35.1 weeks, while in the placebo group, it was 34.6 weeks (median difference 0.5 weeks [95% CI -3.4 to 1.2] (p=0.639). The use of prophylactic dose LMWH started at the time of diagnosis does not prolong pregnancy in individuals with early-onset fetal restriction.

Factors influencing calving difficulty and gestation length in dairy cows inseminated with beef sires

Producing calves with higher economic value by utilizing semen from beef breeds in dairy herds (Beef-on-Dairy, BoD) has become more common in recent times. Such crossbreed calves promise better carcass conformation and higher consumer acceptance due to the better flavor, but the widespread adaptation of BoD requires careful consideration of the sire breed to maximize the benefits. In this regard, two major traits of interest are calving difficulty and gestation length due to associated costs. In this study, 3,966 BoD calves from crossing Holstein dams with beef sires of the breeds Angus (n = 811), Belgian Blue (n = 2841), Limousin (n = 169) and Wagyu (n = 145) from 122 farms were evaluated to determine differences in calving difficulty and gestation length using binary logit and linear regression models. Lowest calving difficulty was observed for Wagyu crossbreds while Limousin crossbreds had the highest calving difficulty incidences. Selected sires from Angus and Belgian Blue breeds were also compared using chi-square analysis for differences in calving difficulty. The risk of calving difficulty was 1.94 times higher for male calves. Heifers had a significantly higher risk for calving difficulty when compared with the multiparous cows in the study. Calves with higher birth weight and longer gestation length were more prone to calving problems. For gestation length, Angus crossbreds had the shortest gestation (280.2 d), while the longest gestation (287.6) was observed in Limousin crossbreds. To maximize the benefits of the BoD breeding strategy, selecting appropriate sire breeds and within-breed sire selection for economically important traits, such as birth weight, appropriate gestation length, and reduced calving difficulty, may provide a viable solution.

INDUCTION OF LABOUR WITH SUBLINGUAL MISOPROSTOL COMPARED TO VAGINAL DINOPROSTONE IN TERMS OF NEONATAL OUTCOME IN WOMEN WITH PROLONGED PREGNANCY

Labor induction in postdate pregnancies can impact neonatal outcomes, including Apgar scores and the need for NICU care. Various induction agents, such as sublingual misoprostol and vaginal dinoprostone, offer differing efficacies. This study aims to compare the neonatal outcomes of these two agents to determine the more effective option for labor induction in postdate pregnancies. Objective: To compare neonatal outcomes, specifically Apgar scores &lt;7 at 1 minute and NICU admissions within the first 24 hours, between neonates born to postdate women induced with sublingual misoprostol versus vaginal dinoprostone. Methods: This randomized controlled trial was conducted in the Department of Obstetrics and Gynecology, Unit 1, Holy Family Hospital, Rawalpindi, from January 2024 to July 2024. After Institutional Research Forum approval, 200 women meeting the selection criteria were randomized via the lottery method into two groups. Group I received 25 mcg of sublingual misoprostol every 4 hours up to 4 doses, and Group II received 3 mg vaginal dinoprostone every 6 hours up to 2 doses. Neonatal Apgar scores were recorded at delivery, and NICU admissions were monitored within 24 hours. Data were documented on structured proforma and analyzed using SPSS. Results: The mean maternal age in Group I was 27.17±4.71 years and in Group II 28.33±4.25 years. Both groups had comparable gestational ages (41.60±0.49 vs. 41.68±0.46 weeks) and parity (1.64±0.79 vs. 2.05±0.83). Group I neonates had higher mean Apgar scores at 1 minute (7.25±2.08) compared to Group II (6.62±2.07), with significant group differences (p=0.04). NICU admissions were required in 30% of neonates, with 48.8% needing NICU care, and fewer admissions in Group I (p=0.04). NICU care showed a significant association with maternal age over 28 years (p=0.000) and nulliparous status (p=0.007) but was not significantly different for those under 28 years or multiparous. Conclusion: Sublingual misoprostol demonstrated superior efficacy to vaginal dinoprostone in labor induction for prolonged pregnancies, with improved neonatal outcomes, including higher Apgar scores and fewer NICU admissions. Age and parity influenced outcomes, highlighting sublingual misoprostol as an effective choice for better neonatal health.

Study Effect of Esomeprazole on the Treatment of Preeclampsia in Pregnant Women: A Double-Blind Clinical Trial Study

Background: Preeclampsia is one of the most serious complications of pregnancy, leading to various maternal and fetal complications. Objectives: This study aimed to determine the effect of oral esomeprazole in the treatment of preeclampsia in pregnant mothers. Methods: In this double-blind clinical trial, we compared oral esomeprazole with a placebo. The study population included 120 pregnant women with preeclampsia (60 in the esomeprazole 40 mg group and 60 in the placebo group) who were referred to Ba'ath Hospital in Sanandaj in 2023. Patient care and follow-up were conducted from the time of diagnosis of preeclampsia and inclusion in the study groups until delivery and the final condition of the baby. The outcomes investigated included prolongation of pregnancy and maternal, fetal, and neonatal outcomes. Results: The average delivery time in the esomeprazole group was 37.3 ± 1.2 weeks, compared to 37.5 ± 1.7 weeks in the placebo group, with no statistically significant difference (P = 0.75). The frequency of maternal outcomes, such as eclampsia, pulmonary edema, hemolysis, placental abruption, renal failure, hepatic hematoma, ascites, thromboembolism, and maternal death, was not statistically different between the esomeprazole and placebo groups, and no severe complications were observed in either group. Similarly, fetal outcomes, including intrauterine growth restriction (IUGR) and changes in fetal heart rate patterns, did not significantly differ between groups, with no instances of fetal or neonatal death observed. Additionally, neonatal outcomes, such as Apgar scores below 7, NICU admissions, mechanical ventilation, and other severe neonatal complications, were not significantly different between the two groups (P &gt; 0.05). Although the esomeprazole group showed a lower frequency of adverse maternal, fetal, and neonatal outcomes compared to the placebo group, these differences were not statistically significant. Conclusions: The frequency of adverse maternal, fetal, and neonatal outcomes was lower in the esomeprazole group than in the placebo group for most variables, but the differences were not statistically significant. Therefore, it cannot be concluded with certainty that esomeprazole is ineffective in preventing or controlling preeclampsia.

Factors Associated with Cesarean Section in Primiparous Women at the Bernard Kouchner Communal Medical Centre in Coronthie, Conakry, Guinea

&amp;lt;i&amp;gt;Objective&amp;lt;/i&amp;gt;: to analyse the factors associated with Caesarean section in primiparous women. &amp;lt;i&amp;gt;Methods&amp;lt;/i&amp;gt;: This was a 12-month (1 January to 31 December 2022) retrospective case-control study conducted at the Bernard Kouchner Communal Medical Centre (CMC) in Coronthie. Correctly completed records of primiparous women with a singleton pregnancy were included, with a live foetus in cephalic presentation having been delivered (by Caesarean section or vaginal delivery) from 28 weeks&amp;apos; gestation with a weight ≥ 1000 g. The &amp;quot;cases&amp;quot; consisted of records from primiparous women who had undergone caesarean section. The &amp;quot;controls&amp;quot; were composed by matching each &amp;quot;case&amp;quot; with the record of a patient who had undergone vaginal delivery, according to the order in the delivery register. Socio-demographic, clinical and obstetric characteristics were analysed and compared. A univariate analysis comparing cases to controls and a multivariate analysis looking for an association between maternal determinants were performed. &amp;lt;i&amp;gt;Results&amp;lt;/i&amp;gt;: The prevalence of caesarean section in primiparous women was 31%. The average age of primiparous women was 24 ± 5 years. The 20-24 age group was the most represented in both groups, with 35% of caesareans and 42% of vaginal deliveries. The factors significantly associated with caesarean section in primiparous women were advanced maternal age (OR=1.13 CI=1.07-1.20), prolonged pregnancy (OR=25.1 CI =3.23 - 5.40), arterial hypertension (OR=4.98 CI= 2.24 -11.6), premature rupture of membranes (OR= 4.25 CI: 2.27 - 8.05), haemorrhagic complications (OR=8.56 CI=3.05 - 26.6), foetal distress (OR=68.4 CI=18.3 - 45.1) and macrosomia (OR=12.7 CI= 4.83 - 38.6). &amp;lt;i&amp;gt;Conclusion&amp;lt;/i&amp;gt;: correct antenatal care and delivery by qualified personnel could help prevent some of these factors and thus reduce the caesarean section rate among primiparous women in our health facility.

Trends in gestational age at live birth in Scotland from 2005 to 2019: a population-based study.

Gestation at birth is associated with short and long-term outcomes. This study used high quality, national, administrative data to examine trends in gestation at birth in Scotland. This observational study used maternity hospital discharge records for 2005 to 2019 to determine trends in the percentage of live births that were preterm (<37 weeks gestation), term (37-41 weeks), and post-term (≥42 weeks), overall and by maternal age and deprivation category. Preterm births were further examined by category of preterm birth (moderate to late [32-36 weeks]; very [28-31 weeks]; extremely [<28 weeks] preterm), and onset of labour (spontaneous; provider-initiated). Singleton and multiple births were examined separately. Aggregate logistic regression was used to estimate the annual change in the odds of a birth being in a specified gestational category. The percentage of singleton births in Scotland that were preterm decreased from 2005 (6.5%, 3,361/51,665) to 2010 (5.8%, 3268/56344), then increased to 2019 (7.2%, 3,408/47,507). The percentage of singleton births that were spontaneous moderate to late, very, and extremely preterm all increased between 2010 and 2019. The percentage of singleton births that were provider-initiated moderate to late preterm also increased between 2010 and 2019, however provider-initiated very or extremely preterm birth decreased. The percentage of singleton births that were preterm increased over time across all maternal age and deprivation categories, with increases greatest in groups at highest baseline risk. The percentage of singleton births that were post-term increased from 2005 to 2009, then decreased to 2019. There has been an increase in spontaneous preterm birth from 2010 to 2019, which is not fully explained by changes in maternal age or deprivation. Further research to examine the contribution of other, preventable, risk factors is warranted. Trends in provider-initiated preterm birth, and post-term birth, are likely to reflect changing clinical practice.

Current possibilities and prospects of tocolytic therapy

The urgency of the problem of preterm birth (PB) is because of its high prevalence and neonatal mortality. The effects of PB on the fetus are often fatal, and PB accounts for 70% of neonatal mortality and 36% of infant mortality. Severe neurological deficits (e.g., cerebral palsy, epilepsy, intraventricular hemorrhages, retinopathy, blindness, hearing loss, delayed neuropsychiatric and motor development) occur in 68% of surviving premature infants. Additionally, children born prematurely have a high risk for purulent septic diseases. The metabolic consequences of prematurity cause diseases such as metabolic syndrome and hypertension. Thus, tocolytic therapy is a crucial therapeutic measure in obstetrics. However, most known and actively used tocolytic drugs induce insufficient effect for long-term prolongation of pregnancy or have serious side effects. Currently, there is a search for new tocolytics to obtain safe, adequate, and long-term effects. This review examines promising and relevant drugs that may be used in routine obstetric practice. Scientific articles, meta-analyses, and systematic reviews from the databases PubMed, Embase, Web of Science, and Google Scholar, and RSCI were analyzed. For the analysis, publications in English and posted no more than 5 years before the study was conducted were selected, except for fundamental works with a longer publication period.

Ultrasound assessment of embryo cardiac function as a predictive criterion of adverse pregnancy outcome

Purpose to evaluate the value of the embryo/fetus heart rate (HR) in early pregnancy assessed by ultrasound for the formation of a group at high risk of adverse pregnancy outcomes.Materials and methods. A retrospective analysis of ultrasound examinations of 1073 pregnant women at 5+0–10+6 weeks was carried out. The embryo/fetus heart rate was compared with the gestational age calculated by the crown rump length (CRL) and the date of the last menstruation period (LMP). Retrospectively, all examined pregnant women were divided into two groups: group 1—with intrauterine embryo death before 14 weeks of pregnancy (n = 107); group 2—with prolongation of pregnancy until the second trimester (n = 966). When analyzing the data array using a decision tree, the embryo heart rate was assessed at various stages of pregnancy by LMP, CRL, and regardless of the exact period of pregnancy.Results. Analysis of heart rate values at different stages of pregnancy by LMP showed significant differences in heart rate between groups, the cases of later embryo loss characterized by lover heart rate values. There were no significant differences in heart rate between the groups at different stages of pregnancy by CRL (significant differences were obtained only at 8+0–9+6 weeks). Cut-off values of embryo heart rate for prediction of adverse pregnancy outcomes have been proposed for different stages of pregnancy, as well as a universal cut-off for the entire embryonic period.Conclusion. The proposed cut-off values of embryo heart rate for different stages of pregnancy, calculated by LMP, may be used for timely prediction of adverse pregnancy outcomes. When the exact gestational age is unknown, a universal heart rate cut-off value of &lt;116 bpm may be used. All proposed HR cut-off values were characterized by high specificity, but none of them by high sensitivity. A sensitivity of HR cut-off values can be increased by the use in combination with other ultrasound and clinical signs of adverse pregnancy outcome.

Changing Indications for Cervical Cerclage Following the Introduction of Routine Ultrasound Surveillance of Cervical Length for Prediction and Prevention of Preterm Birth.

Preterm birth (PTB) is associated with significant neonatal mortality and morbidity. Universal measurement of cervical length has been proposed as a screening tool to direct intervention to prevent PTB. To assess the impact of the introduction of sonographic mid-trimester cervical length screening on the use of cervical cerclage and PTB. A retrospective cohort study reviewed two groups of women who underwent cervical cerclage before and after the introduction of universal sonographic cervical length screening. Demographics and outcomes were compared using Student's t test, Fisher's Exact test and Kaplan-Meier analysis. Following introduction of universal cervical length screening, the overall rate of cerclage increased from 2.5/1000 births to 6.0/1000 births (p < 0.01). There was a reduction in the proportion of sutures placed purely based on maternal history (50.0% to 30.4%; p < 0.001), while the proportion of sutures placed following ultrasound assessment increased in both high- (21.7 to 36.6%) and low-risk (11.7% to 30.4%) women (p < 0.001). The overall rate of PTB <37weeks in women has a cerclage was 25.7% and was highest in women undergoing rescue cerclage (64.3%; p < 0.01). There was no difference in the rate of PTB between high- and low-risk women undergoing history- or ultrasound-indicated cerclage. Mean pregnancy length was most prolonged in low-risk women undergoing ultrasound-indicated cerclage, extending gestation from 33.9 to 38.3weeks (p < 0.01). Universal cervical length screening results in an increase in the use of cerclage, specifically on the basis of the ultrasound findings. Women who were at low risk but then underwent ultrasound-indicated cerclage experienced most prolongation of pregnancy. Women who were at high risk but had a suture on the basis of ultrasound findings-indicated cerclage represent an alternative method of management with no significant difference in the gestational age of delivery.

Effect of continuity of team midwifery care on maternal and neonatal outcomes: a quasi-experimental study in Iran

Midwife-led continuity of care models have been linked to better clinical outcomes in certain developed countries. However, there is a paucity of research on these models in developing nations. This quasi-experimental study was conducted on primiparous women who referred to one private midwifery center and two public hospitals in Ahvaz, Iran to evaluate the effect of team midwifery care on maternal and neonatal outcomes of pregnant women in Iran. Two hundred women were allocated either into the experimental (n = 100) or control (n = 100) groups. Women in the experimental group, received team midwifery care, while women in the control group, received routine care. Data were collected using a demographic questionnaire, Mackey questionnaire, and a checklist. Women in the team midwifery care group experienced significantly higher rates of normal vaginal birth and exclusive breastfeeding compared to women in the control group. No statistically significant difference was observed between the two groups in terms of the rate of induction of labor and postpartum hemorrhage. The duration of labor was longer in the team midwifery care compared to the control group. Women in the team midwifery care group had a significantly higher rate of exclusive breastfeeding at six weeks postpartum compared to the control group (80 vs. 61%, p = 0.001). After excluding women with ruptured membranes and prolonged pregnancies, neonates in the intervention group had significantly higher first- and fifth-minute Apgar scores (p < 0.0001), and a lower rate of admission to intensive care unit in the intervention group compared to the control group (1 vs. 9%, p = 0.04). Also, women in the team midwifery group had skin-to-skin contact significantly earlier than those in the control group (33.87 ± 66.26 min vs. 111.98 ± 247.31 min, p = 0.578). Given the positive impact of continuous team midwifery care on maternal and neonatal outcomes, its implementation in maternity care systems, particularly in countries like Iran with high cesarean section rates, is strongly recommended.