Gestational diabetes mellitus in in-vitro fertilization pregnancies - Clinical and placental histological characteristics.

INTRODUCTION: We aimed to investigate obstetric and neonatal outcomes and placental histological findings in in vitro fertilization (IVF) pregnancies complicated by gestational diabetes mellitus (GDM) as compared to unassisted pregnancies. METHODS: This was a retrospective cohort of deliveries at a single university affiliated center between 12/2008 and 01/2020. Included were singleton pregnancies complicated by GDM, for which placental histopathological examination was performed. Obstetric, neonatal and placental outcomes were compared between pregnancies following IVF and unassisted pregnancies. Placental lesions were categorized according to the "Amsterdam" criteria. RESULTS: Included were 688 deliveries with a diagnosis of GDM with placental examination - 69 IVF pregnancies (IVF group) and 619 unassisted pregnancies (control group). The IVF group was characterized by a significantly higher maternal age and higher rate of nulliparous women - 60.8% vs. 32.9%, p < 0.001. There were no differences in GDM type between the study groups - about two thirds of cases were GDMA1 and on third GDMA2. A higher incidence of preeclampsia was noted in the IVF group - 17.3% vs. 9.3%, p = 0.03, with no difference in cesarean deliveries and birthweight. IVF deliveries were characterized by a significantly higher rate of adverse neonatal outcomes - 18.8% vs. 8.8%, p = 0.008, although this did not attain significance after adjustment to gestational age. No differences were noted in placental histology between the groups. DISCUSSION: GDM in IVF is associated with a significantly higher rate of adverse neonatal outcomes, as compared with non-assisted pregnancies complicated by GDM. Placental histology does not shed light on these clinical associations.

Placental pathology in pregnancies complicated by fetal growth restriction: recurrence vs. new onset.

OBJECTIVE: In an attempt to shed new light on the pathogenesis of fetal growth restriction (FGR), we aimed to study pregnancy characteristics, neonatal outcomes, and placental histopathological lesions of FGR pregnancies in two different subgroups: when developed after appropriate for gestational age (AGA) pregnancy and when developed after previous pregnancy with FGR. STUDY DESIGN: Pregnancy and placental reports of all singleton pregnancies complicated by FGR (defined as actual birthweight below the 10th percentile according to local birthweight nomograms) between 2008 and 2018 were reviewed. Included were only cases with previous delivery. Maternal background, neonatal outcomes, and placental histopathology were compared between FGR that occurred after FGR (recurrent FGR group) and FGR that occurred after an AGA pregnancy (FGR after AGA group). Placental lesions were classified according to the current "Amsterdam" criteria. Continuous variables were compared using the Student's t test or the Mann-Whitney test as appropriate. Categorical variables were compared using Chi-square or Fisher's exact test as appropriate. RESULTS: A total of 334 FGR cases with a previous delivery were included in the study. Of them, 111 cases constituted the recurrent FGR group and 223 constituted the FGR after AGA group. The recurrent FGR group was characterized by higher rates of maternal diabetes during pregnancy and hypertensive diseases (9% versus 2.7%, p = 0.01 and 19.8% versus 11.6%, p = 0.04). The FGR after AGA group was characterized by a higher rate of fetal vascular malperfusion (FVM) lesions (29.6% versus 18.0%, p = 0.02), and by lower mean birthweight (1842 ± 424.9 versus 1977.4 ± 412.2, p = 0.005), as compared to the recurrent FGR group. CONCLUSION: Recurrent FGR was associated with maternal background morbidities during pregnancy which represents a chronic repeated insult, while "new" FGR cases (those followed an AGA pregnancy) were characterized by a higher rate of FVM lesions and lower birthweight which probably represent an "accident" in placentation. These findings may suggest that different mechanisms of placental dysfunction exist in the two subgroups of FGR.

Reduced fetal movements at term, low-risk pregnancies: is it associated with adverse pregnancy outcomes? Ten years of experience from a single tertiary center.

OBJECTIVE: We aimed to assess the outcomes of low-risk pregnancies complicated by isolated reduced fetal movements (RFM) at term. STUDY DESIGN: The study population were patients at term, with singleton, low-risk, pregnancies who presented to our obstetric-triage and delivered during the subsequent 2 weeks. The study group included patients with an isolated complaint of RFM (RFM group). The control group included patients without history of RFM (control group). The pregnancy, delivery, and neonatal outcomes were compared between the groups. Severe and mild composites of adverse neonatal outcomes were defined. Multivariate regression analyses were performed to identify independent association with adverse neonatal outcomes. RESULTS: Among the 13,338 pregnant women, 2762 (20.7%) were included in the RFM group and 10,576 (79.3%) in the control group. The RFM group had higher rates of nulliparity (p < 0.001), and smoking (p < 0.001). At admission, the RFM group had higher rates of IUFD (p < 0.001). The RFM group had higher rates of Cesarean delivery due to non-reassuring fetal monitor (p < 0.001), and mild adverse neonatal outcomes (p = 0.001). RFM was associated with mild adverse outcome independent of background confounders (aOR = 1.4, 95% CI 1.2-2.6, p < 0.001). CONCLUSION: Patients presented with isolated RFM at term had higher rates of IUFD at presentation and significant adverse outcomes at delivery.

Pregnancy outcomes in correlation with placental histopathology in subsequent pregnancies complicated by preeclampsia.

OBJECTIVE: In attempt to deepen our understanding of the etiopathogenesis of preeclampsia we aimed to study the placental component and pregnancy outcomes in two consecutive pregnancies complicated by preeclampsia in the same patient. STUDY DESIGN: Pregnancy and placental reports of all pregnancies complicated by preeclampsia between 2008 and 2018 were reviewed. Included were only cases with recurrent preeclampsia in two consecutive pregnancies Neonatal outcomes and placental histopathology were compared between the first preeclampsia delivery (first preeclampsia group) and the subsequent preeclampsia delivery (subsequent preeclampsia group), thus each subject served as her own control in two consecutive pregnancies. Placental lesions were classified according to the current "Amsterdam" criteria. Adverse neonatal outcome was defined as ≥1 early neonatal complication. RESULTS: Included in the study a total of 83 cases with recurrent preeclampsia. The first preeclampsia group delivered at an earlier gestational age (35.7 ±â€¯3.7 vs. 36.8 ±â€¯3.1 weeks, p = 0.03) and had higher rates of severe features (44.6% vs. 25.3%, p = 0.03), placental weight <10th percentile (44.5% vs. 26.5%, p = 0.02), maternal vascular malperfusion (MVM) lesions (84.3% vs. 62.6%, p = 0.002), SGA (44.5% vs. 33.7%, p = 0.03), and adverse neonatal outcome (55.4% vs. 34.9%,p = 0.01), compared to the subsequent preeclampsia group. Using multivariate logistic regression analysis, severe features (aOR = 1.36, 95%CI = 1.12-2.36), MVM lesions (aOR = 1.12, 95%CI = 1.04-1.87) and adverse neonatal outcome (aOR = 1.26 95%CI = 1.14-2.23) were found to be independently associated with the first preeclampsia group. CONCLUSION: The first event of preeclampsia is characterized by an earlier, more severe presentation, as well as a higher rate of MVM lesions, SGA, and adverse neonatal outcome, compared to preeclampsia in a subsequent pregnancy.

Pregnancy outcomes in correlation with placental histopathology in subsequent pregnancies complicated by fetal growth restriction.

OBJECTIVE: In attempt to shed new light on the etiopathogenesis of fetal growth restriction (FGR) we aimed to compare pregnancy outcomes and placental histopathology in cases of first vs. subsequent FGR occurrence. STUDY DESIGN: Pregnancy and placental reports of FGR pregnancies (defined by birth weight <10th percentile), born between 2008 and 2018 were reviewed. Included only cases with recurrent FGR, in two consecutive pregnancies, thus each subject served as her own control in two FGRs consecutive pregnancies. Neonatal outcome and placental histopathology were compared between the first FGR delivery (first FGR group) and the subsequent FGR delivery (subsequent FGR group). Composite adverse neonatal outcome was defined as one or more early neonatal complications. RESULTS: Included in the study a total of 96 cases with recurrence of FGR pregnancies. Placentas from the first FGR group were characterized by higher rate of maternal vascular malperfusion (MVM) lesions as compared with the subsequent FGR group (71.8% versus 55.2%, respectively, p = 0 .02). Adverse neonatal outcome was more prevalent in the first FGR group as compared to the recurrent FGR group (41.6% versus 25%, respectively, p = 0.02). After controlling for confounders, using multivariate regression analysis, placental MVM lesions (aOR = 1.36, 95% CI = 1.12-1.45) and composite adverse neonatal outcome (aOR = 1.18 95% CI = 1.09-1.55) were found to be independently associated with the first FGR group. CONCLUSION: First event of FGR is associated with a higher rate of placental MVM lesions and adverse neonatal outcome as compared to FGR in subsequent pregnancies.

Single dose oral midazolam for minor emergency department procedures in children: a retrospective cohort study.

BACKGROUND: In the pediatric emergency department, patients are commonly treated with a single dose of oral midazolam for minor procedures. We sought to evaluate the effect of this treatment on procedure completion rates. METHODS: We conducted a single-center retrospective cohort study of all patients who were treated with pre-procedure oral midazolam between January 2011 and June 2016. The primary outcome was the procedure completion rate. RESULTS: During the study period, 1,504 patients were treated with oral midazolam as per department protocol; 1,467 received midazolam and 37 declined midazolam. Oral midazolam was used in 14 different types of emergency department procedures. The procedure completion rates in the treatment and non-treatment groups were 1,402/1,467 (95.6%) and 24/37 (64.8%), respectively (difference 30.7%; 95% confidence interval [CI] 17.3%-46.8%); p<0.0001. Treatment group patients had procedure completion rates of 25/33 (75.8%), 165/188 (87.8%%), 1,154/1,187 (97.2%), and 58/59 (98.3%), in the less than 0.3 mg/kg group, 0.3 to less than 0.5 mg/kg group, 0.5 to less than 0.7 mg/kg group, and 0.7 to less than 0.9 mg/kg group, respectively. Multivariate regression did not demonstrate an association between sex, ethnicity, dosage of 0.5 mg/kg or greater, type of procedure, and failure to complete procedure. Severe adverse events were not recorded. A dose of less than 0.3 mg/kg was significantly associated with an increased risk of failure to complete a procedure (adjusted odds ratio 8.34, 95% CI 3.32-20.9; p<0.0001). CONCLUSION: The findings suggest that oral midazolam in a single dose of 0.5 mg/kg or greater is associated with successful completion of minor pediatric procedures.