Miriam Lopian

Dr. Miriam Lopian

orcid

Research Focus & Metrics

Academic Career Length

10Years (2017-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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MLMiriam Lopian
Miriam Lopian
LLLior Kashani Ligumsky
Lior Kashani Ligumsky
Ariel ManyAriel Many
Ariel Many
The decision to postpone parenting has gained momentum in recent years, a shift driven by evolving social dynamics and improved access to fertility treatments. Despite their increasing prevalence, pregnancies at advanced maternal ages are associated with increased risks of adverse maternal and neonatal outcomes. This article addresses the association between advanced maternal age and hypertensive disorders of pregnancies (HDPs), which are more prevalent and a significant cause of maternal morbidity and mortality in this population. This review explores the biological mechanisms and age-related risk factors that underpin this increased susceptibility and offers practical management strategies that can be implemented prior to, as well as during, each stage of pregnancy to mitigate the incidence and severity of HDPs in this group. Lastly, this review acknowledges both the short-term and long-term postpartum implications of HDPs in women of advanced maternal age.

1 January 2021 in Pediatrics & Neonatology
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Journal Article
Open access
MLMiriam Lopian
Miriam Lopian
LKLior Kashani-Ligumsky
Lior Kashani-Ligumsky
SCShelly Czeiger
Shelly Czeiger
RCRonnie Cohen
Ronnie Cohen
YSYehudit Schindler
Yehudit Schindler
ESEli Somekh
Eli Somekh
There is limited data regarding the safety of vaginal delivery in women infected with COVID-19. Our goal was to assess the safety of vaginal delivery in women infected with COVID-19 and the risk of neonatal infection. This was a single medical center cohort study. Data were collected about the outcome of twenty-one women with laboratory-confirmed COVID-19 infection who delivered between March 23, 2020, and May 8, 2020. Twenty-one gravidas were diagnosed with COVID-19 infection. None required admission to the intensive care unit (ICU) and there were no fatalities. Seventeen delivered vaginally and four by caesareans. Apgar scores of all neonates were 9 at 1 min and 10 at 5 min. One neonate was diagnosed with COVID-19 infection 24 h after birth. Vaginal delivery in women infected with COVID-19 is not associated with a significant risk of neonatal infection.

Verified
Journal Article
Open access
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MLMiriam Lopian
Miriam Lopian
LLLior Kashani Ligumsky
Lior Kashani Ligumsky
RCRonnie Cohen
Ronnie Cohen
IWIzaak Wiener
Izaak Wiener
BABat-Chen Amir
Bat-Chen Amir
HRHadar Rosen
Hadar Rosen
Objective: To determine and compare the safety and efficacy of different methods of induction of labor in twin gestations and their effect on maternal and neonatal outcomes. Methods: A retrospective observational cohort study was conducted at a single university-affiliated medical center. Patients with a twin gestation undergoing induction of labor at >32 + 0 weeks comprised the study group. Outcomes were compared to patients with a twin gestation at >32 + 0 weeks who went into labor spontaneously. The primary outcome was cesarean delivery. Secondary outcomes included operative vaginal delivery, postpartum hemorrhage, uterine rupture, 5 min APGAR < 7, and umbilical artery pH < 7.1. A subgroup analysis comparing outcomes for the induction of labor with oral prostaglandin E1 (PGE1), IV Oxytocin ± artificial rupture of membranes (AROM), and extra-amniotic balloon (EAB)+ IV Oxytocin was performed. Data were analyzed using Fisher’s exact test, ANOVA, and chi-square tests. Results: 268 patients who underwent induction of labor with a twin gestation comprised the study group. 450 patients with a twin gestation who went into labor spontaneously comprised the control group. There were no clinically significant differences between the groups for maternal age, gestational age, neonatal birthweight, birthweight discordancy, and non-vertex second twin. There were significantly more nulliparas in the study group compared to the control group (23.9% vs. 13.8% p < 0.001). The study group was significantly more likely to undergo a cesarean delivery of at least one twin (12.3% vs. 7.5% OR, 1.7 95% CI 1.04–2.85 p = 0.03). However, there was no significant difference in the rate of operative vaginal delivery (15.3% vs. 19.6% OR, 0.74, 95% CI 0.5–1.1 p = 0.16), PPH (5.2% vs. 6.9% OR, 0.75 95% CI 0.39–1.42 p = 0.37), 5-min APGAR scores < 7 (0% vs. 0.2% OR, 0.99 95%CI 0.99–1.00 p = 0.27), umbilical artery pH < 7.1 (1.5% vs. 1.3% OR, 1.12 95% CI 0.3–4.0), or combined adverse outcome (7.8% vs. 8.7% OR, 0.93 95% CI 0.6–1.4 p = 0.85). Furthermore, there were no significant differences in the rates of cesarean delivery or combined adverse outcomes in patients undergoing induction with oral PGE1 compared to IV Oxytocin ± AROM (13.3% vs. 12.5% OR, 1.1 95% CI 0.4–2.0 p = 1.0) (7% vs. 9.3% OR, 0.77 95% CI 0.5–3.5 p = 0.63 ) or EAB+ IV Oxytocin (13.3% vs. 6.9% OR, 2.1 95% CI 0.1–2.1 p = 0.53) (7% vs. 6.9% OR, 1.4 95% CI 0.15–3.5 p = 0.5) or between patients undergoing induction of labor with IV Oxytocin ± AROM and EAB+ IV Oxytocin (12.5% vs. 6.9% OR, 2.1 95% CI 0.1–2.4 p = 0.52) (9.3% vs. 6.9% OR, 0.98 95% CI 0.2–4.7 p = 0.54). There were no cases of uterine rupture in our study. Conclusions: Induction of labor in twin gestations is associated with a two-fold increased risk of cesarean delivery, although this is not associated with adverse maternal or neonatal outcomes. Furthermore, the method of induction of labor used does not affect the chances of success nor the rate of adverse maternal or neonatal outcomes.

26 April 2025 in Ultrasound in Obstetrics & Gynecology
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Journal Article
Open access
MLMiriam Lopian
Miriam Lopian
SPS. Prasad
S. Prasad
ESE. Segal
E. Segal
ADA. Dotan
A. Dotan
CUCan Ozan Ulusoy
Can Ozan Ulusoy
Asma KhalilAsma Khalil
Asma Khalil
Objective: To evaluate the performance of sonographic fetal biometry and Doppler parameters assessed at routine third‐trimester ultrasound examination for predicting small‐for‐gestational age (SGA) and fetal growth restriction (FGR). Methods: This was a retrospective cohort study of low‐risk singleton pregnancies undergoing routine ultrasound examination between 35 + 0 and 37 + 6 weeks' gestation and delivered at St George's University Hospital, London, UK, between December 2019 and February 2024. The study outcomes were SGA (birth weight < 5 th centile) and FGR (birth weight < 3 rd centile or birth weight < 10 th centile with composite adverse perinatal outcome). Composite adverse perinatal outcome comprised intrauterine death, neonatal death or admission to the neonatal intensive care unit. Demographic characteristics, estimated fetal weight (EFW) and abdominal circumference centiles, as well as Doppler indices, including pulsatility indices (PI) of the umbilical artery (UA), middle cerebral artery (MCA) and uterine artery (UtA) were evaluated. The cerebroplacental ratio (CPR) was calculated, and all indices were converted to multiples of the median (MoM). Multivariable logistic regression analysis was performed to identify and adjust for confounders. The area under the receiver‐operating‐characteristics curve (AUC) was used to evaluate the model's performance for predicting small neonates. Results: A total of 14 161 pregnancies were included in the study. The prevalence of SGA and FGR neonates was 3.1% and 1.5%, respectively. Independent predictors of SGA and FGR, respectively, were: EFW centile (adjusted odds ratio (aOR) 0.91 (95% CI, 0.90–0.92); P < 0.001 and aOR 0.90 (95% CI, 0.89–0.91); P < 0.001); AC centile (aOR 0.91 (95% CI, 0.90–0.92); P < 0.001 and aOR 0.91 (95% CI, 0.90–0.92); P <0.001); UA‐PI MoM (aOR 4.60 (95% CI, 2.19–9.64); P < 0.001 and aOR 2.53 (95% CI, 1.05–6.10); P = 0.038); MCA‐PI MoM (aOR 0.37 (95% CI, 0.20–0.70); P = 0.002 and aOR 0.26 (95% CI, 0.12–0.59); P = 0.001); CPR MoM (aOR 0.23 (95% CI, 0.13–0.42); P < 0.001 and aOR 0.25 (95% CI, 0.12–0.53); P < 0.001); and UtA‐PI MoM (aOR 2.54 (95% CI, 1.68–3.83); P < 0.001 and aOR 2.16 (95% CI, 1.31–3.58); P = 0.003). The EFW centile alone was associated with an AUC of 0.917 (95% CI, 0.907–0.929) for the prediction of SGA and 0.925 (95% CI, 0.908–0.939) for the prediction of FGR. This was similar to AUCs of around 0.92 for the prediction of SGA and AUCs of around 0.93 for the prediction of FGR when the EFW centile was combined with any Doppler parameters. Conclusions: Sonographic fetal biometry evaluation in the late third trimester can predict delivery of a neonate affected by SGA or FGR, including those at risk for adverse perinatal outcomes. In an unselected population, fetal arterial Doppler parameters were independent predictors of SGA and FGR, but the addition of Doppler parameters to fetal biometry did not improve prediction of the incidence of small neonates. © 2025 The Author(s). Ultrasound in Obstetrics & Gynecology published by John Wiley & Sons Ltd on behalf of International Society of Ultrasound in Obstetrics and Gynecology.

12 January 2024 in Journal of Clinical Medicine
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LLLior Kashani Ligumsky
Lior Kashani Ligumsky
RNRan Neiger
Ran Neiger
Ella SegalElla Segal
Ella Segal
RCRonnie Cohen
Ronnie Cohen
MLMiriam Lopian
Miriam Lopian
Most preterm births occur in the late preterm period. While prematurity-related adverse outcomes are significantly diminished when birth occurs during this period, these infants are still at increased risk of complications. Parity affects the incidence of obstetric complications. The purpose of this study was to determine whether parity impacts the risk of spontaneous late preterm birth (SLPTB) and associated complications. A retrospective observational cohort study was conducted. Patients were divided into three study groups according to parity. The primary outcome was the rate of SLPTB in each group. Secondary outcomes were unplanned cesarean delivery (UCD), prolonged third stage of labor respiratory distress syndrome (RDS), transient tachypnea of the newborn (TTN), intraventricular hemorrhage (IVH), neonatal hypoglycemia, duration of NICU admission, neonatal death, and composite adverse neonatal outcome (CANO). Primiparas were more likely to have SLPTB, UCD, and CANO compared to multiparas (2.6% vs. 1.9% OR 1.5 [1.3–1.7] p < 0.01) (4.1% vs. 1.3% OR 2.7 [1.2, 5.9] p < 0.01) (8.5% vs. 4.2 OR 2.1 [1.3–3.5] p = 0.002) and grandmultiparas (2.6% vs. 1.7% OR 1.4 [1.2–1.5] p < 0.001) 8.5% vs. 4.4% OR 2.0 [1.1, 3.8], p = 0.01) but no difference in UCD compared to grandmultiparas (4.1% vs. 3.3% OR 1.2 [0.6–2.7] p = 0.28). Primiparas are at increased risk of SLPTB and UCD, and this is accompanied by an increased risk of adverse neonatal outcomes.

20 April 2021 in Archives of Gynecology and Obstetrics
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MLMiriam Lopian
Miriam Lopian
LKLior Kashani-Ligumski
Lior Kashani-Ligumski
RCRonnie Cohen
Ronnie Cohen
SASharon Assaraf
Sharon Assaraf
JHJacky Herzlich
Jacky Herzlich
SPSharon Perlman
Sharon Perlman