Associations between Maternal Nutritional Status, Hemodynamic Parameters, and Delivery Outcomes in Low-Risk Pregnancies: A Prospective Observational Study.

Maternal nutritional status represents a pivotal predictor of pregnancy outcome. This prospective observational study investigates the associations between maternal characteristics and nutritional habits at term, hemodynamic parameters, and pregnancy outcomes. Healthy women with singleton uncomplicated pregnancies were enrolled at 36-41 gestational weeks. At enrollment, a nutritional score (0-10) was calculated in order to quantify maternal adherence to a healthy diet and lifestyle. Maternal hemodynamic parameters were assessed by using the Ultrasonic Cardiac Output Monitor (USCOM), including cardiac output (CO), systemic vascular resistance (SVR) and Smith-Madigan inotropy index (SMII). Pregnancy outcomes were recorded at delivery. Associations between maternal characteristics and nutritional score, hemodynamic parameters, and pregnancy outcomes were investigated by using multi-adjusted generalized linear models. In total, 143 pregnancies were enrolled. Pregestational body mass index (BMI) was positively associated with SVR, and negatively associated with CO and SMII. Additionally, a positive association was detected between the nutritional score and SMII. Finally, CO was positively associated with birth and placental weight, while RVS showed a negative association with birth and placental weight. This study shows that maternal derangements in nutritional status and habits are associated with a compromised hemodynamic profile at term, with additional impacts on intrauterine growth.

Long-Term Postnatal Follow-Up in Monochorionic TTTS Twin Pregnancies Treated with Fetoscopic Laser Surgery and Complicated by Right Ventricular Outflow Tract Anomalies.

Right ventricular outflow tract anomalies (RVOTAs), such as pulmonary stenosis (PS), pulmonary atresia (PA), and pulmonary insufficiency (PI), are typical cardiac anomalies in monochorionic twins, and they are complicated by twin-to-twin transfusion syndrome (TTTS). The aim of this study was to conduct a long-term postnatal cardiological evaluation of prenatal RVOTAs in monochorionic diamniotic twin pregnancies complicated by TTTS and treated with fetoscopic laser surgery (FLS) and to analyze possible prenatal predictors of congenital heart disease (CHD). Prenatal RVOTAs were retrospectively retrieved from all TTTS cases treated with FLS in our unit between 2009 and 2019. Twenty-eight prenatal cases of RVOTAs (16 PI, 10 PS, 2 PA) were observed out of 335 cases of TTTS. Four cases did not reach the postnatal period. CHD was present in 17 of the remaining 24 cases (70.8%), with 10 being severe (58.8%; 10/17); nine cases of PS required balloon valvuloplasty, and one case required biventricular non-compaction cardiomyopathy. The risk of major CHD increased with prenatal evidence of PS and decreased with the gestational age at the time of TTTS and with the prenatal normalization of blood flow across the pulmonary valve. Despite treatment with FLS, the majority of monochorionic diamniotic twin pregnancies complicated by TTTS with prenatal RVOTAs had CHD at long-term follow-up.

Immune Response and Transplacental Antibody Transfer in Pregnant Women after COVID-19 Vaccination.

COVID-19 infection is associated with increased risk of pregnancy complications, making vaccination during pregnancy critical for mother-neonate dyads. Few data, often with an unrepresentative sample size, are available on SARS-CoV-2 vaccine-induced humoral and cell-mediated response. Here, we evaluated anti-S antibody and interferon-gamma (IFN-γ) production elicited by SARS-CoV-2 immunization in maternal and neonatal plasma. Pregnant women (n = 230) were prospectively enrolled and classified as unvaccinated (n = 103) and vaccinated (n = 127); after serological screening for previous infections, assays were performed on 126 dyads, 15 mothers and 17 newborns. Positive anti-S antibodies were found in most of the vaccinated subjects, regardless of timespan between immunization and delivery (range: 7-391 days). A total of 89 of 92 vaccinated women showed a broad response to COVID-19 immunization and highly effective placental transfer, as attested by anti-S positive rates (maternal = 96.7%, cord = 96.6%). Most of our subjects had indeterminate results in an IGRA assay, preventing a conclusive evaluation of IFN-γ production. Indeed, pregnancy-related hormonal changes may influence T-cell response with an impact on IFN-γ production. Positive pregnancy and perinatal outcomes reinforce the evidence that the anti-SARS-CoV-2 immunization is effective and well-tolerated in pregnant women and also protective for the fetus/neonate, even though it was not possible to define the related IFN-γ production and role.

Prospective multicentre Italian pregnancy cohort study (SIMPLE) on the associations of maternal first trimester SIMPLE nutritional score with early placental function markers and pregnancy outcomes.

INTRODUCTION: Currently, the adherence to nutritional guidelines is low, with alarming rates of obesity worldwide and micronutrient deficiencies documented even in industrialised countries. As a consequence, nutritional screening and counselling represent a critical subject in early pregnancy, aiming to improve pregnancy outcomes and population health. METHODS AND ANALYSIS: In this setting, the development of a simple and reproducible nutritional checklist is of utmost importance. The Simple Study is a longitudinal prospective multicentre study aiming to identify the associations between maternal nutritional habits in the first trimester, early markers of placental function and pregnancy outcomes on a large population of singleton pregnancies in Italy.Ongoing healthy singleton pregnancies will be enrolled at the ultrasound scan of the first trimester combined screening test (11+0-13+6 gestational weeks). A nutritional score measuring the adherence to a healthy diet and nutritional deficiencies will be collected at recruitment. Fetal (crown-rump length, nuchal translucency (NT), biparietal diameter, femur length) and utero placental (placental volume, uterine arteries Doppler velocimetry) ultrasound data and biochemical placental markers (pregnancy-associated plasma protein A, free ß-human chorionic gonadotropin) will be collected. Second and third trimester ultrasound records and birth outcomes will be recorded from medical registers. This study will set the stage for introducing a reproducible, time-saving and low-cost nutritional screening in pregnancy. The nutritional score will allow the implementation of specific corrective measures with potential large impact on placentation and pregnancy outcomes. ETHICAL AND DISSEMINATION: Ethical approval for this study was obtained from the Milano Area 1 Ethics Committee (No 46091, 7 November 2018) prior to the commencement of the research.The dissemination plan includes the presentation of abstracts and findings at national and international scientific meetings.

Associations between Maternal Dietary Patterns, Biomarkers and Delivery Outcomes in Healthy Singleton Pregnancies: Multicenter Italian GIFt Study.

Background: Maternal nutrition represents a critical risk factor for adverse health outcomes in both mother and offspring. We aimed to investigate associations between maternal nutritional habits, biomarker status, and pregnancy outcome among Italian healthy normal-weight pregnancies. Methods: Multicenter prospective cohort study recruiting Italian healthy normal-weight women with singleton spontaneous pregnancies at 20 ± 2 weeks (T1) in Milan and Naples. All patients underwent nutritional evaluations by our collecting a 7-day weighed dietary record at 25 ± 1 weeks (T2) and a Food Frequency Questionnaire at 29 ± 2 weeks (T3). Maternal venous blood samples were collected at T3 to assess nutritional, inflammatory and oxidative biomarker concentrations (RBCs folate, vitamin D, hepcidin, total antioxidant capacity). Pregnancy outcomes were collected at delivery (T4). General linear models adjusted for confounding factors were estimated to investigate associations between maternal dietary pattern adherence, nutrient intakes, biomarker concentrations and delivery outcomes. Results: 219 healthy normal-weight pregnant women were enrolled. Vitamin D and RBCs folate concentrations, as well as micronutrient intakes, were consistently below the recommended range. In a multi-adjusted model, maternal adherence to the most prevalent 'high meat, animal fats, grains' dietary pattern was positively associated with hepcidin concentrations and negatively associated with gestational age at delivery in pregnancies carrying female fetuses. Hepcidin plasma levels were further negatively associated to placental weight, whereas vitamin D concentrations were positively associated to neonatal weight. Conclusions: A high adherence to an unbalanced 'high meat, animal fats, grains' pattern was detected among Italian normal-weight low-risk pregnancies, further associated with maternal pro-inflammatory status and gestational age at delivery. This evidence underlines the need for a dedicated nutritional counseling even among low-risk pregnancies.

Perinatal and Neonatal Outcomes in Fetal Growth Restriction and Small for Gestational Age.

Alterations in intrauterine fetal growth increase the risk of adverse perinatal and neonatal outcomes. In this retrospective study, we analyzed data of 906 pregnancies collected in our maternal fetal medicine center, with different patterns of growth: 655 AGA (Appropriate for Gestational Age), 62 SGA (Small for Gestational Age: fetuses born with a weight less than 10° centile, not diagnosed before delivery), 189 FGR (Fetal Growth Restriction, classified in early and late according to gestational week at diagnosis). For each group, we compared maternal characteristics, gestational age at delivery, and perinatal and neonatal outcomes. Risk factors for fetal growth alterations were advanced age, being primiparous, and a lower pregestational BMI. FGR fetuses were born at earlier gestational ages (32 [IQR 29-38] early-FGR and 38 [IQR 36-39] late-FGR), with blood gas values comparable to the AGA group but worse neonatal outcomes related to prematurity. Unexpected SGA fetuses born by vaginal delivery, managed as AGA, were more hyperlactacidemic (4.4 [IQR 2.7-5.5]) and hypoxemic (-5.0 [IQR -7.1-2.8]) at birth than both AGA and FGR. However, neonatal outcomes (accesses and days of hospitalization in NICU) were better than FGR, likely due to gestational age and birthweight similar to AGA.

High grade cervical intraepithelial neoplasia positive biopsy: the importance of accurate pre-operative workup.

BACKGROUND: In cervical cancer screening programs, women with abnormal cytology and confirmation by biopsy are referred for colposcopy for histological evaluation. METHODS: We characterized the presence and the genotype of HPV by Linear Array HPV genotyping assay in cytological samples collected from about 400 women undergoing conization, with reported high CIN grade after biopsy. RESULTS: The most prevalent genotype was HPV 16, with an increasing presence depending on the severity of the CIN and with the highest incidence in the 26-35 age range. In the group of younger women (<25) we found the highest percentage of CIN3 (39.3%) and the lowest of CIN1 (17.9%). An increase of CIN1 with increasing age was observed. A different distribution of HPV presence was observed depending on CIN grade (P<0.001): CIN1 HPV negative samples were 46.3%, CIN2: 5.8% and CIN3: 1.4%. Interesting, in the analyzed cohort, we observed the presence of 30% of CIN1. Moreover, within CIN1, 85% of them were associated to negative HPV detection, this observation suggested that the detection of HPV presence may be useful to identify low CIN grade that should be reconsidered for surgical treatment. CONCLUSIONS: These findings suggest implementing the protocol for the management of women with high risk precancer lesions, with a further HPV test before surgical treatment. The evaluation of HPV presence and genotype before conization might represent a useful tool in reducing or postpone the conization treatment.