Publications by authors named "Maymon R"

Introduction: Technical advances are rapidly improving the ability to detect anatomical malformations and genetic abnormalities during pregnancy. We aimed to identify the sequence of events leading to medical abortion ≥ 34 weeks' gestation, to determine whether the procedure could have been carried out earlier.

Method: Retrospective study of medical abortions in singleton pregnancies carried out in our department over a 23-year period from1998 to 2021.

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Background: On 7 October 2023, Hamas lunched a massive terror attack against Israel. The first weeks after were characterized with great uncertainty, insecurity, and fear.

Objectives: To evaluate the effect of the first 2 months of the Iron Swords war on obstetrical emergency attendance and the corresponding perinatal outcomes.

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To describe the feasibility of our preliminary outpatient fallopian tube catheterization procedure under 3D vaginal ultrasound (US) guidance followed by highly selective hysterosalpingo-foam sonography (HyFoSy) in infertile women diagnosed with proximal tubal obstruction.A prospective trial was conducted from October 2022 to December 2023. 3D vaginal US was used to establish the precise location of the tip of the selective salpingography catheter at the tubal ostium.

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Objective: Advances in ultrasound and molecular genetics have changed the field of late termination of pregnancy (LTOP), sparking ethical debates worldwide. In 2007, Israel updated its LTOP policies, requiring a 30% or higher probability of severe handicap for approval of LTOP after 24 weeks' gestation.

Purpose: In this retrospective study, we compared LTOP indications and approval rates before (Group 1: 1998-2007) and after (Group 2: 2008-2021) this policy change.

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Purpose: The eccentric implantation of pregnancies in the upper lateral aspect of the uterine cavity is poorly defined clinically. The aim of the current study was to investigate whether differentiating between uterine anomalies that can lead to cavitary distortion has implications for the management of these pregnancies.

Methods: Eight cases of first-trimester eccentric pregnancy implantation within the endometrial cavity (study group) were retrospectively identified.

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Objectives: The term oligohydramnios is linked to pregnancy complications. We previously presented the outcome of the low-risk population (no pregnancy complications) with term oligohydramnios. This study aims to address the high-risk group (Any maternal complication during pregnancy, such as gestational diabetes, pre-gestational diabetes, chronic hypertension, preeclampsia, anemia, asthma, obesity, and multi parity.

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Introduction: OpenAI's GPT-4 (artificial intelligence [AI]) is being studied for its use as a medical decision support tool. This research examines its accuracy in refining referrals for fetal echocardiography (FE) to improve early detection and outcomes related to congenital heart defects (CHDs).

Methods: Past FE data referred to our institution were evaluated separately by pediatric cardiologist, gynecologist (human experts [experts]), and AI, according to established guidelines.

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To evaluate the development of neutralizing Anti-Spike Protein IgG (Anti-S-IgG) during twin pregnancies before conception vs. during pregnancy. In this prospective study, three blood samples were collected from pregnant women and subjected to anti-S-IgG immunodiagnostics.

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Congenital anomalies of the umbilical cord are associated with an increased risk of pregnancy and perinatal complications. Some anomalies of the cord have a higher prevalence than other fetal structural anomalies. The most common anomalies are the absence of an umbilical artery and velamentous insertion of the cord (with or without vasa previa).

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Objective: Clinical-sonographic scoring systems combining clinical features and ultrasound imaging markers have been proposed for the screening of placenta accreta spectrum, but their usefulness in different settings remains limited. This study aimed to assess and compare different clinical-sonographic score systems applied from mid-pregnancy for the prenatal evaluation of patients at risk of placenta accreta spectrum at birth.

Data Sources: PubMed/MEDLINE, Google Scholar, and Embase were searched between October 1982 and October 2022 to identify eligible studies.

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During the last decades, a major achievement was reported in detecting Down's syndrome in the first trimester of pregnancy. This is attributed to the use of high-resolution accurate ultrasound machine allowing the detection of a "nuchal translucency" in the back of the fetus during 11-14 weeks' gestation. This is considered to be a physiologic finding, but when increased, may alert for chromosomal abnormality (mainly Down's syndrome), cardiac and other organ anomalies and other genetic syndromes.

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Background: There are limited data to guide the diagnosis and management of vasa previa. Currently, what is known is largely based on case reports or series and cohort studies.

Objective: This study aimed to systematically collect and classify expert opinions and achieve consensus on the diagnosis and clinical management of vasa previa using focus group discussions and a Delphi technique.

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Background: National second-trimester scanning of cervical length was introduced in Israel in 2010, and in the decade thereafter, a significant systematic reduction in preterm birth and in the delivery of low birthweight babies was found among singletons.

Objective: In this study, we sought to estimate the cost-effectiveness of a national policy mandating second-trimester cervical length screening by ultrasound, followed by vaginal progesterone treatment for short cervical length in comparison with no screening strategy.

Study Design: We constructed a decision model comparing 2 strategies, namely (1) universal cervical length screening, and (2) no screening strategy.

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Background: Termination of pregnancy is a difficult moral dilemma that provokes a discussion in the public, from an ethical, moral and religious point of view. This process is complex, especially when it comes to a fetus at a viability age (late abortion, after week 24), which requires the approval of a regional supreme committee.

Objectives: To examine the various causes of abortion both before and after the fetal viability age (24 weeks of gestation and beyond) in a singleton pregnancy, as well as to examine the sequence of events that led to a late abortion.

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Introduction: Antibiotic resistance is a worldwide concern. No study has ever examined the correlation between ethnicity and antibiotic resistance. We examined those parameters among hospitalized pregnant patients diagnosed with pyelonephritis.

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Introduction: Determination of the fetal gender in the first trimester is important in twin pregnancy cases of familial X-linked genetic syndromes and helps determine chorionicity. We assessed and compared the accuracy of first-trimester ultrasound scans, and cell-free fetal DNA (CfDNA) in determining fetal gender in the first trimester of twin pregnancies.

Methods: Women with twin pregnancies were recruited prospectively during the first trimester.

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Objective: To evaluate Cesarean scar defects using saline contrast sonohysterography (SCSH) in women with a history of Cesarean scar pregnancy (CSP).

Methods: A cohort of 38 non-pregnant women with a history of CSP treated with combined local and systemic methotrexate was investigated prospectively by SCSH. For the purpose of analysis, they were classified, according to the modified Delphi consensus criteria for CSP in early gestation, into three subgroups based on the depth of the gestational sac herniation in the midsagittal plane.

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Article Synopsis
  • A cesarean scar pregnancy occurs when a gestational sac implants in the scar from a previous cesarean delivery, leading to significant risks for the mother.
  • The study aimed to analyze ultrasound findings and management strategies for cesarean scar pregnancies, utilizing an international registry that collected data from various healthcare centers.
  • Out of 460 patients analyzed, 58.7% received surgical treatment, 26.7% were managed medically, and the effectiveness of these interventions was evaluated based on successful resolution of the pregnancy.
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Background: Fetal facial clefts are among the most common congenital anomalies detected prenatally. This finding may lead to termination of pregnancy in some cases.

Objectives: To compare a cohort of fetuses with facial clefts in which the pregnancy was terminated to the cohort of cases that were born with facial clefts.

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Objective: This study aimed to estimate the perinatal mortality associated with prenatally diagnosed vasa previa and to determine what proportion of those perinatal deaths are directly attributable to vasa previa.

Data Sources: The following databases have been searched from January 1, 1987, to January 1, 2023: PubMed, Scopus, Web of Science, and Embase.

Study Eligibility Criteria: Our study included all studies (cohort studies and case series or reports) that had patients in which a prenatal diagnosis of vasa previa was made.

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Objectives: Clinical evaluation of the new Delphi consensus definition of cesarean scar pregnancy (CSP) in early gestation.

Methods: A retrospective cohort of 36 women diagnosed with CSP and treated with combined local and systemic methotrexate (MTX) between 2008 and 2021. The CSPs were classified according to the new Delphi consensus criteria into three subgroups based on the depth of the gestational sac herniation in the sagittal plane.

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Importance: Spontaneous hemoperitoneum in pregnancy (SHiP) is a rare life-threatening event previously associated with endometriosis. Although pregnancy is thought to improve the symptoms of endometriosis, abrupt intraperitoneal bleeding can occur, jeopardizing both maternal and fetal outcomes.

Objective: The aim of this study was to review the published information regarding SHiP pathophysiology, presentation, diagnosis, and management in a flowchart approach.

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Introduction: Preeclampsia (PE) is a major pregnancy complication, posing considerable morbidity and mortality. The maternal serum angiogenic factors - PlGF and sFlt-1, and their ratio appear to be promising markers to predict PE. Aims: To assess whether the evaluation of PlGF and sFlt-1 adds to the clinical workup of women with suspected PE, and to estimate the cost/benefit.

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