Journal of Perinatal Medicine最新文献

The prevalence of artificial reproductive technologies (ART), such as intra-uterine insemination (IUI), in vitro fertilization (IVF), and intracytoplasmic sperm injection (ICSI), has surged in response to the global increase in infertility rates, now impacting 17.5 % of couples. With over nine million babies born through ART, the safety and efficacy of these methods are largely recognized; however, emerging concerns regarding their association with prenatal and long-term health risks, especially cardiovascular disease (CVD), necessitate a thorough examination. This review synthesizes recent findings on the cardiac remodeling observed in ART-conceived fetuses, highlighting the potential for sub-clinical dysfunction and subsequent cardiovascular anomalies that may extend into adolescence. It delves into the perinatal complications linked to ART and examines the contribution of the Renin-Angiotensin System, epigenetic modifications, and altered microRNA expressions to fetal cardiovascular development. The analysis further differentiates the cardiac effects of fresh vs. frozen ART cycles and investigates the enduring nature of these changes beyond birth. Addressing the elevated CVD risk among ART individuals, the review suggests proactive measures, including lifestyle adjustments initiated early in life, to mitigate potential adverse outcomes. It emphasizes the critical need for ongoing research and intervention strategies to safeguard the cardiovascular health of the increasing number of ART-conceived individuals.

Objectives: Multiple techniques have been proposed for functional fetal cardiology, including pulsed-wave (PW) and tissue Doppler imaging (TDI), Myocardial Performance Index (MPI), annular plane systolic excursion (TAPSE/MAPSE) and spatiotemporal image correlation (STIC). We aimed to compare these techniques' achievability and reproducibility to determine their clinical utility for each cardiac side.

Methods: Uncomplicated pregnancies from 22 to 39 weeks were recruited and images and volumes stored for offline analysis. PWD-MPI values were calculated using previously demonstrated automation algorithms, and the remaining volumes were evaluated by two experienced operators.

Results: 79 women were scanned generating 222 volumes, with high achievability (>86 %) for all three modalities on both cardiac sides; highest for TAPSE/MAPSE (94 %). Repeatability (ICC) on the right side of the heart was highest for TAPSE (inter-observer 0.86; intraobserver 0.73), compared to PWD-MPI (0.69) and TDI-MPI (0.83). For the left side, repeatability was high for both PWD-MPI (0.80) and TDI-MPI (0.86) though low for MAPSE (inter-observer 0.7, intra-observer 0.69). There was poor correlation between PWD-MPI and TDI-MPI values.

Conclusions: TAPSE appears most reliable for evaluation of right heart function, compared to PWD-MPI for the left. As TDI-MPI correlates poorly with PWD-MPI, the latter appears to be the functional tool of choice.

Objectives: Pregnancies affected by opioid use disorder (OUD) face difficulties with postpartum pain control. This study aims to determine if prenatal anesthesia consultation for patients on medication for opioid use disorder (MOUD) affects maternal postpartum pain control.

Methods: This is a retrospective cohort study of pregnant patients diagnosed on MOUD who received prenatal care and delivered at a single academic institution between January 2017 and July 2023. Subjects were divided into those who received prenatal anesthesia consultation and those who did not. Severe pain (numerical rating scale 0-10) was defined as score≥7. Statistical analysis was performed using Chi-square, Mann-Whitney U, and multivariable logistical regression tests with significance defined as p<0.05.

Results: The cohort included 359 women on MOUD. Of these, 17.8 % (n=64) received anesthesia consultation and 82.2 % (n=295) did not. Factors found associated with receiving anesthesia consultation were prenatal care with an obstetric provider trained in maternal OUD (p<0.01), psychiatric diagnosis (p<0.01) and higher number of prenatal care visits (10.12 vs. 8.99, p=0.007). When comparing pain scores in the first 24 h postpartum, patients with prenatal anesthesia consultation had statistically significant lower rates of severe pain compared to those who did not (25 vs. 44.7 %, p=0.004). Anesthesia consultation (OR 0.34) and cesarean section (OR 2.81) were independent predictors of severe postpartum pain in the first 24 h after delivery.

Conclusions: Patients on MOUD who received antenatal anesthesia consultation report lower postpartum pain scores than those without consultation, which supports that multidisciplinary care for pregnant patients with OUD may help the postpartum experience.

Objectives: The aim of this study was to compare the adrenal gland size of fetuses with congenital heart diseases (CHD) and normal fetuses.

Methods: In this cross-sectional prospective study we measured the fetal adrenal gland size (total width, cortex width, medulla width, adrenal gland ratio of total width divided by medulla width) in 62 fetuses with CHD and 62 gestational-age-matched controls between 20 + 0 and 39 + 3 weeks of gestation. First, we clustered three CHD subgroups: CHD group_1 with a normal outflow tract (n=7), CHD group_2 with an altered outflow tract and anterograde flow in the ascending aorta (n=39) and CHD group_3 with an altered outflow tract and retrograde flow in the ascending aorta (n=16). In a second step, we summed up all CHD cases with outflow tract anomalies to CHD group_2 + 3 (n=55). Each group was compared to their matched controls.

Results: Prenatally, fetuses affected by CHD with outflow tract alterations show an elevated adrenal gland ratio (total width/medulla width) compared to normal fetuses (p<0.001). This finding applies to both subgroups of outflow tract alterations with anterograde (p<0.001) and retrograde perfusion of the ascending aorta (p<0.001).

Conclusions: Fetuses affected by CHD with an altered outflow tract show a relatively larger cortex of the adrenal gland compared to normal fetuses. The results of this study suggest that haemodynamic changes during fetal maturation cause an elevated metabolic stress level that may be responsible for an enlarged adrenal gland ratio.

Introduction: Vasa previa (VP) is a serious pregnancy complication in which fetal vessels, unprotected by the umbilical cord, run across or within close proximity to the internal cervical os, which can potentially result in fetal exsanguination in the event of membrane rupture. There is global consensus that women with antenatally diagnosed VP should have caesarean delivery prior to onset of labour to prevent the catastrophic complications of VP. However, there is variability in the approach to management of these women antenatally, particularly regarding hospitalisation and timing of steroid administration and delivery.

Content: In this review, we aim to compare the VP guidelines of four prominent obstetric advisory bodies: The Royal Australian and New Zealand College of Obstetricians and Gynaecologists (RANZCOG), The Royal College of Obstetricians and Gynaecologists (RCOG), The Society for Maternal-Fetal Medicine (SMFM) and The Society of Obstetricians and Gynaecologists of Canada (SOGC) with a particular focus on antenatal hospitalisation, administration of steroids, and timing of birth in asymptomatic patients. We also aim to evaluate the evidence cited to support their recommendations.

Summary: Current guidelines are based on low-quality evidence that often does not include insights from recent studies and are vague in their recommendations for antenatal hospitalisation and timing of delivery.

Outlook: More robust evidence for management of VP is needed to inform future guidelines.

Objectives: To describe obstetric characteristics and perinatal outcomes in a serie of fetuses with Sacrococcygeal Teratoma (SCT) and propose a novel index to assess postnatal mortality based on the THC ratio and the addition of the presence of polyhydramnios.

Methods: A retrospective study in a referral teaching hospital between 2013 and 2023. A descriptive analysis and a receiver operating characteristic (ROC) curve were performed to the determine the optimal cutoff value of the THC plus polyhydramnios based on optimal sensitivity and specificity.

Results: Eleven out of 15 fetuses were included in our series during the study period. The median gestational age at prenatal diagnosis was 30.9 weeks and the median gestational age at birth was 35.8 weeks. Seven patients developed polyhydramnios. There was no intrauterine death. There were four deaths after birth (36.4 %). A cutoff value of THC plus polyhydramnios higher than 3.0 was associated with postnatal mortality with 100 % sensitivity and 86 % specificity. There was no significant difference comparing TFR with THC plus polyhydramnios.

Conclusions: We report a high postnatal mortality of 36 % among fetuses with diagnosis of Sacrococcygeal Teratoma. Additionally, we propose a potential useful index associated with postnatal mortality based on the THC and the addition of polyhydramnios with a sensitivity of 100 %.

Objectives: Maternal obesity increases a child's risk of neurodevelopmental impairment. However, little is known about the impact of maternal obesity on fetal brain development.

Methods: We prospectively recruited 20 healthy pregnant women across the range of pre-pregnancy or first-trimester body mass index (BMI) and performed fetal brain magnetic resonance imaging (MRI) of their healthy singleton fetuses. We examined correlations between early pregnancy maternal BMI and regional brain volume of living fetuses using volumetric MRI analysis.

Results: Of 20 fetuses, there were 8 males and 12 females (median gestational age at MRI acquisition was 24.3 weeks, range: 19.7-33.3 weeks, median maternal age was 33.3 years, range: 22.0-37.4 years). There were no significant differences in clinical demographics between overweight (OW, 25≤BMI<30)/obese (OB, BMI≥30 kg/m²) (n=12) and normal BMI (18.5≤BMI<25) (n=8) groups. Fetuses in the OW/OB group had significantly larger left cortical plate (p=0.0003), right cortical plate (p=0.0002), and whole cerebellum (p=0.049) compared to the normal BMI group. In the OW/OB BMI group, cortical plate volume was larger relative to other brain regions after 28 weeks.

Conclusions: This pilot study supports the concept that maternal obesity impacts fetal brain volume, detectable via MRI in living fetuses using quantitative analysis.

Objectives: Modern obstetrics confronts a rise in caesarean sections (CS). Prevention of unnecessary primary CS is a global priority. Women face intense psychological and physiological challenges during childbirth. Fear and anxiety during labour reduce women's self-confidence and empowerment. Yoga is a body-mind practice that lowers maternal fear and anxiety and helps relax pelvic floor muscles during labour. The study examined whether yoga practice in pregnancy influences CS rate in primiparous singleton pregnant women, labour pain intensity and epidural analgesia requests at delivery ward admission.

Methods: We conducted a single-blind, randomised, controlled clinical trial comparing yoga to standard obstetric care in pregnancy. A total of 214 participants were randomised, 106 in yoga and 108 in controls. Weekly 90-min yoga classes were led by a certified yoga teacher's supervision. Every pregnant woman in the interventional group completed 12 yoga sessions.

Results: Yoga group had a lower total CS due to less frequent In-labour CS (p=0.004) and a higher rate of spontaneous vaginal birth (p=0.009). They experienced less pain intensity during labour (p<0.001), and there was no difference in epidural analgesia requests.

Conclusions: Engaging in yoga during pregnancy reduces the rate of In-labour CS, decreases discomfort and encourages spontaneous vaginal birth in primiparous singleton pregnant women.

Objectives: To analyze pregnancy outcomes and factors influencing early-onset intrahepatic cholestasis of pregnancy (ICP), offering insights to improve the management, diagnosis, and treatment of ICP during pregnancy.

Methods: We categorized 127 pregnant women with ICP into two groups based on a gestational age cutoff of 28 weeks. The analysis centered on biochemical markers, pregnancy complications, and outcomes to identify factors influencing early-onset ICP.

Results: We found that biochemical markers including alanine aminotransferase, aspartate aminotransferase, gamma-glutamyl transferase (GGT), alkaline phosphatase, total bilirubin, direct bilirubin (DBIL), indirect bilirubin, and cholesterol were significantly lower in early-onset ICP compared to late-onset ICP. Importantly, premature birth rates were higher in the early-onset ICP group. Through univariate and multivariate logistic regression analyses of these biochemical markers, GGT and DBIL emerged as significant predictive factors (OR=0.84 and 0.54).

Conclusions: Early-onset ICP is characterized by its early onset, prolonged duration, and a higher incidence of premature births compared to late-onset ICP, leading to adverse perinatal outcomes. This research underscores the protective role of GGT and DBIL in early-onset ICP.