[Medical termination of pregnancy for isolated intrauterine growth retardation beyond 24 weeks and more than 450g]. / Interruption médicale de grossesse pour retard de croissance intra-utérin isolé au-delà de 24 SA et de 450g.

INTRODUCTION: Fetal growth restriction (FGR) is an obstetric complication responsible for increased perinatal morbidity and mortality. In some severe and early FGR situations, termination of pregnancy (TOP) may be considered. The main objective of our study was to describe the population of fetuses for whom a TOP was performed for isolated FGR beyond 24 days' gestation and for a birth weight>450g and to analyze the immediate outcome, at 2 and 5 years, of term- and weight-matched neonates born in a context of severe FGR after 24 weeks' gestation and over 450g. MATERIAL AND METHODS: We conducted an observational, descriptive, retrospective, uni-centric study between 2008 and 2018. The primary endpoint was survival at maternity discharge, 2 years and 5 years in these children. Secondary endpoints were assessment of immediate and longer-term postnatal morbidity. Twenty-five patients (36%) were selected for the study with a fetus weight>450g and term>24 weeks. Each fetus with an TOP was matched (on gestational age and weight) with two live-born children from the perinatal network cohort to assess immediate discharge outcome, and then at 2 and 5 years. RESULTS: The mortality rate was 24%. In neonatal management, for 67% (n=17) of the newborns the evolution was complicated by death or at least two sequelae (bronchopulmonary dysplasia, hyaline membrane disease stage≥2, intraventricular of grade 3 and 4, ulcerative colitis requiring surgery, retinopathy of prematurity stage 2 and more) at discharge. In 32% (n=8) of cases, there was at least one sequela at discharge. Regardless of gestational age at birth, development at 2 years was normal for 48% (n=11/23) of them and abnormal for 22% (n=5) and development at 5 years was normal for 56% (n=9/16) of them and abnormal for 19% (n=5). CONCLUSION: An ultrasound evaluation in a reference center as well as additional information by the obstetrician and neonatologist ensures the most appropriate informed involvement of the couple in the medical decisions before and after birth.

Prenatal diagnosis and outcome of fetuses with isolated agenesis of septum pellucidum: cohort study and meta-analysis.

OBJECTIVE: To evaluate the postnatal outcome of children with a prenatal diagnosis of apparently isolated agenesis of the septum pellucidum (ASP). METHODS: A retrospective cohort study of cases of prenatally diagnosed ASP followed in two tertiary centers and a meta-analysis combining data from the cohort study with data from published studies identified in a systematic review were carried out. Only cases with apparently isolated ASP on antenatal ultrasound and/or magnetic resonance imaging and with available postnatal follow-up data were considered eligible for inclusion. The following outcomes were analyzed: incidence of chromosomal anomalies, agreement between antenatal and postnatal findings, overall incidence of septo-optic dysplasia (SOD) and incidence of major neurological disability (motor, language, coordination or behavioral disorder or epilepsy) in non-SOD children. The incidence of SOD in infants with apparently normal optic pathways on antenatal imaging was also evaluated. RESULTS: Fifteen cases of isolated ASP, with median postnatal follow-up of 36 months (range, 12-60 months), were selected from the two centers. Six previously published studies met the inclusion criteria for the systematic review and a total of 78 cases were eligible for the analysis, including the 15 cases from our series. Genetic tests were carried out antenatally in 30 fetuses, of which two had an abnormal result (pooled proportion, 9.0% (95% CI, 1.8-20.7%); I2 = 0%). Additional or discordant imaging findings were noted postnatally in 9/70 (pooled proportion, 13.7% (95% CI, 3.5-29.0%); I2 = 63.9%) cases. Of all 78 neonates with available follow-up, SOD was diagnosed postnatally in 14 (pooled proportion, 19.4% (95% CI, 8.6-33.2%); I2 = 51.2%). In 60 cases, the optic pathways were considered to be normal on antenatal imaging, and six of these (pooled proportion, 9.1% (95% CI, 1.1-24.0%); I2 = 62.0%) were diagnosed postnatally with SOD. Of the 46 infants with available neurological follow-up who were not affected by SOD, a major neurological disability was diagnosed in three (pooled proportion, 6.5% (95% CI, 0.5-18.6%); I2 = 40.1%). CONCLUSIONS: In the vast majority of cases with a prenatal diagnosis of apparently isolated ASP, the prognosis is favorable. However, an additional anomaly is detected after birth in about 14% of cases and has a negative impact on clinical outcome. Detailed antenatal assessment of the brain and optic pathways is strongly recommended in order to identify the presence of associated anomalies. Antenatal visualization of apparently normal optic pathways does not rule out SOD. © 2021 International Society of Ultrasound in Obstetrics and Gynecology.

[Validation of the cervical length education and review program in a population of French residents in obstetrics and gynecology]. / Intérêt d'une formation théorique des internes de gynécologie obstétrique à la mesure échographique du col utérin.

OBJECTIVES: Evaluate an educational program based on "CLEAR" (Cervical Length Education and Review) in the teaching of measuring sonographic cervical length to residents in gynecology and obstetrics. METHODS: This is a prospective cohort study in a tertiary care center between May and November 2017. The residents were asked to collect 5 cervical length images from patients suspected with threatened preterm labor. A theoretical session on cervix measurement image criteria based on "CLEAR" program was taught to all residents. Then, they had to collect 5 new cervical length images. All the images were reviewed by two experienced reviewers, blinded to the resident and whether the image was obtained before or after the theoretical session and based on 8 criteria. RESULTS: Ten residents participated to the study. The mean total score CLEAR was significantly higher post-intervention: 6.6±0.9 vs. 4.3±2.1, positive difference of 2.3±2.3 (P<0.001). Improvement was most significant with the junior residents: 3.6 pre vs. 6.5 post-intervention. CONCLUSION: Educational program based on CLEAR criteria allowed to improve the competence of residents in measuring sonographic cervical length, although this can also be correlated with the progression of residents during the semester. It could be implemented systematically with the aim of CLEAR certification to standardize the teaching of residents in gynecology and obstetrics.

Biparietal/transverse abdominal diameter ratio ≤ 1: potential marker for open spina bifida at 11-13-week scan.

OBJECTIVE: In the first trimester of pregnancy, a biparietal diameter (BPD) below the 5(th) percentile is a simple marker that enables the prenatal detection of half of all cases of open spina bifida. We hypothesized that relating the BPD measurement to the transverse abdominal diameter (TAD) might be another simple and effective screening method. In this study we assessed the performance of using the BPD/TAD ratio during the first trimester of pregnancy in screening for open spina bifida. METHODS: A total of 20,551 first-trimester ultrasound scans (11-13 weeks' gestation), performed between 2000 and 2013, were analyzed retrospectively; there were 26 cases of open spina bifida and 17,665 unaffected pregnancies with a crown-rump length of 45-84 mm and a record of both BPD and TAD measurements. RESULTS: The mean (± SD) BPD/TAD ratio was 1.00 ± 0.06 for fetuses with spina bifida and 1.13 ± 0.06 for those without (P < 0.0001). A BPD ≤ 5(th) percentile enabled the prenatal detection of 46.2% of spina bifida cases, while a BPD/TAD ratio of ≤ 1.00 detected 69.2%. If we considered cases in which either BPD was ≤ 5(th) percentile or BPD/TAD ratio was ≤ 1, we identified 76.9% of cases. In the latter case, the false-positive rate was 5.1%, while that for using a combination of both BPD ≤ 5th percentile and BPD/TAD ratio ≤ 1 was 0.6%, with a sensitivity of 38.5%. The positive predictive value of using a combination of BPD ≤ 5th percentile and BPD/TAD ratio ≤ 1 for detecting spina bifida was 8.5%. CONCLUSIONS: Between 11 and 13 weeks' gestation, relating BPD to TAD improves considerably the diagnostic performance of using BPD measurement alone in screening for open spina bifida. Screening using this marker is simple and applicable to a large population.

Immunohistochemical analysis of brain macrophages in adrenoleukodystrophy.

Using a panel of monoclonal antibodies directed against antigenic determinants present at the surface of mononuclear cells, we characterized the macrophage infiltration in frozen brain specimens from a patient with adrenoleukodystrophy by immunohistochemical staining. This study demonstrated that macrophages were the main infiltrating cells in the white matter and that there was a wide variability in their phenotype according to their location: they stained very strongly with Leu-M5, EBM11, Leu-M3, To5 and 2LPM 19 C in the perivascular cuffs, whereas they stained principally with Leu-M5 and EBM11 and to a lesser extent with To5 and 2LPM19c in the white matter. In addition to the expression of MHC class II and CD4 molecules, macrophages exhibited strong labelling with 7G7B6, a monoclonal antibody raised against IL2 receptors. These results attest that macrophages, which infiltrate the brain parenchyma have various phenotypes, and very likely different states of activation, and suggest that interleukin-2 plays an important role during this activation.