Publications by authors named "Chen Nahshon"

Objective: The aim of this study was to assess the usefulness of routine hemoglobin testing following elective and urgent cesarean section (CS) in patients without primary postpartum hemorrhage (PPH).

Methods: This retrospective cohort study included women who underwent vaginal delivery (VD), elective CS, and urgent CS at Carmel Medical Center from 2015 to 2020. Data were extracted from the obstetric database, excluding deliveries with PPH.

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Objective: Endometrial intraepithelial neoplasia (EIN) and atypical hyperplasia (AH) are recognized precursors for endometrial cancer (EC). Most current guidelines do not recommend the routine surgical evaluation of lymph nodes (LN), although recent studies indicate increased use of sentinel lymph node (SLN) biopsy in patients with a preoperative diagnosis of EIN/AH. We aimed to evaluate the rates of positive LN and its effect on the incidence of upstaging of EIN/AH patients, complications, and adjuvant treatment administration.

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Objectives: To evaluate the effect of overweight (body mass index; BMI 25.0-29.9 kg/m), and obesity (BMI>30 kg/m), on the success of trial of labor after cesarean delivery (TOLAC), with consideration of successful past vaginal birth.

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Objective: This study aimed to assess the risk of stress urinary incontinence recurrence and reoperation after a midurethral sling procedure in women with subsequent childbirth and to assess the effect of delivery mode on this risk.

Data Sources: An electronic database search was performed using MEDLINE with the OvidSP interface and PubMed, Embase, Web of Science, and the Cochrane Library up to September 20, 2023.

Study Eligibility Criteria: This study included experimental and nonexperimental studies, composed of randomized controlled and observational (case-control, cohort, and cross-sectional) studies assessing the risk factors for stress urinary incontinence recurrence and reoperation after childbirth in women who had previously undergone a midurethral sling procedure for stress urinary incontinence.

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Objective: To study and quantify the attitude of BRCA1/2 mutation carriers towards surgical risk reduction procedures.

Methods: This cross-sectional national study was conducted by distribution of an anonymous questionnaire on social media platforms and to BRCA1/2 carriers' medical clinic.

Results: 530 BRCA1/2 mutation carriers answered the survey.

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Purpose: To study the attitude of BRCA1/2 mutation carriers regarding family planning, fertility preservation, and preimplantation genetic testing (PGT).

Methods: A national cross-sectional study was conducted by the distribution of an anonymous questionnaire, from August 2022 to January 2023. The main outcomes measures were discussion, acceptance, and performance rates of fertility preservation and PGT.

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Objective: The current study was performed to evaluate the incidence of positive lymph nodes (LNs) in relation to known pathological risk factors, specifically among patients with apparent low-grade, small tumors.

Methods: We used the Surveillance, Epidemiology, and End Results (SEER) database to retrospectively identify patients with vulvar squamous cell carcinoma (SCC) diagnosed between January 1, 2000, and December 31, 2019, with known tumor size and regional LN examined. A comparison between patients who had positive and negative LNs was conducted to identify risk factors for LN metastases in relation to survival.

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Background: Studies aimed to assess risk factors for pelvic organ prolapse (POP) recurrence following colpocleisis with nonconclusive results.

Objective: To investigate risk factors for POP recurrence following colpocleisis.

Search Strategy: MEDLINE, PUBMED, Embase, Web of Science, and Cochrane databases were systematically searched.

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Objective: To assess the long term outcomes and prognosis of sentinel lymph node sampling compared with full lymph node dissection in endometrial cancer patients.

Methods: We used the Surveillance, Epidemiology, and End Results (SEER) database for information on women diagnosed with endometrial cancer from 2010 to 2019. We conducted a comparison including overall survival between patients who had undergone sentinel lymph node sampling only and patients who had undergone formal lymph node dissection.

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Objective: To assess the ovarian cancer (OC) risk following endometrial cancer (EC) in patients who underwent ovarian preservation as part of the EC staging.

Study Design: With permission of the Surveillance, Epidemiology and End Results (SEER) program of the United States National Cancer Institute, clinicopathological information of women diagnosed with EC and following OC were analyzed. Incidence of OC and survival according to the surgical approach were studied.

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The recently emerged novel coronavirus, "severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2)," caused a highly contagious disease called coronavirus disease 2019 (COVID-19). It has severely damaged the world's most developed countries and has turned into a major threat for low- and middle-income countries. Since its emergence in late 2019, medical interventions have been substantial, and most countries relied on public health measures collectively known as nonpharmaceutical interventions (NPIs).

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Objective: To assess the rates of success of the second dose of Misoprostol administration and to evaluate the parameters that affect the success of this approach.

Study Design: This retrospective cohort study was performed using institutional database of Carmel Medical Center between the dates of 1/11/2012-1/11/2017. Patients with ultrasound proven intrauterine abnormal pregnancy, treated for missed abortion or blighted ovum by two doses of intravaginal Misoprostol were included.

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Objective: To evaluate maternal and neonatal severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) immunoglobulin G (IgG) antibody levels at birth after a third (booster) dose of the Pfizer-BioNTech messenger RNA (Pfizer) coronavirus disease 2019 (COVID-19) vaccine during the second trimester of pregnancy, and compare them with those in women who received two vaccine doses during the second trimester.

Methods: We conducted a prospective cohort study of women admitted to the delivery ward at a single center who received the third Pfizer COVID-19 vaccine dose (booster group) at 17-30 weeks of pregnancy and who did not have previous SARS-CoV-2 infection. Maternal and neonatal antibody levels were measured on admission for delivery and in the umbilical cord blood after birth.

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Introduction: Several studies have investigated whether patients with prior breast cancer (BC) are at an increased risk for endometrial cancer (EC)/uterine serous cancer (USC). We aimed to study this relationship and analyze the effect of prior BC on the incidence and prognosis of USC patients.

Methods: With permission of the Surveillance, Epidemiology, and End Results (SEER) program of the US National Cancer Institute, clinicopathological information of women diagnosed with BC and following USC were analyzed.

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Objective: BNT162b2 messenger RNA (mRNA) COVID-19 vaccine administered during pregnancy was found to produce a strong maternal immunoglobulin (IgG) response which crosses the placenta to the newborn. Our aim was to evaluate maternal and neonatal SARS-CoV-2 IgG antibody levels at birth, following a COVID-19 booster vaccine during the third trimester.

Study Design: A prospective cohort study including women admitted to delivery ward at least 7 days after their BNT162b2 (Pfizer/BioNTech) booster vaccination without a prior clinical COVID-19 infection.

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The aim of this study is to provide a more accurate representation of COVID-19's case fatality rate (CFR) by performing meta-analyses by continents and income, and by comparing the result with pooled estimates. We used multiple worldwide data sources on COVID-19 for every country reporting COVID-19 cases. On the basis of data, we performed random and fixed meta-analyses for CFR of COVID-19 by continents and income according to each individual calendar date.

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Importance: BNT162b2 messenger RNA (mRNA) COVID-19 vaccination in the third trimester was found to be associated with a strong maternal humoral IgG response that crossed the placenta and approached maternal titers in the newborn.

Objective: To evaluate maternal and neonatal SARS-CoV-2 immunoglobulin G (IgG) antibody levels at birth after mRNA COVID-19 vaccination during the second trimester of pregnancy.

Design, Setting, And Participants: This prospective cohort study, conducted at a single medical center in Haifa, Israel, from May to July 2021, included women with a singleton pregnancy over 24 weeks of gestation at least 7 days after receipt of their second COVID-19 vaccine dose who were not known to be previously infected with COVID-19.

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In certain patients cleavage stage embryos may be preferred. The relationship between an additional day in culture and pregnancy outcomes is not well established. We aimed to compare outcomes of day 2 versus overnight day 3 frozen embryo transfer (FET).

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Objective: To study the possible association between uterine cancer and the BRCA1/2 associated cancer syndrome and discuss the implications of such an association on the clinical managment of patients with BRCA1/2 mutations.

Methods: A systematic review and meta-analysis was conducted according to the Preferred Reporting Items for Systematic reviews and Meta-Analyses statement. Study protocol was prospectively registered at PROSPERO International prospective register of systematic reviews (registration number CRD42020193496).

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Background: It is still unclear whether endometrial injury (EI) has a beneficial effect on reproductive outcomes, and if so, the optimal procedure characteristics are not clear. All previous papers concluded that more research is needed, and as additional studies were recently published, the insights on EI have changed significantly.

Methods: Searches were conducted in MEDLINE, Embase, Web of Science, and Cochrane Library, to identify randomized controlled trials examining the EI effect on IVF outcomes in women at least one previous failed cycle.

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