21 results on '"Maymon R"'
Search Results
2. Evaluation of Cesarean section scar using saline contrast sonohysterography in women with previous Cesarean scar pregnancy.
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Pekar‐Zlotin, M., Maymon, R., Nimrodi, M., Zur‐Naaman, H., and Melcer, Y.
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CESAREAN section , *CERVIX uteri , *SCARS , *DELPHI method , *UTERUS - Abstract
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. Subgroup A included eight (21.1%) cases, in which the largest part of the gestational sac protruded towards the uterine cavity; Subgroup B included 20 (52.6%) cases, in which the largest part of the gestational sac was embedded in the myometrium; and Subgroup C included 10 (26.3%) cases, in which the gestational sac was located partially outside the outer contour of the cervix or uterus. Results: SCSH revealed that all women in Subgroup C had a uterine niche. The median niche length (P = 0.006) and depth (P = 0.015) were significantly greater in Subgroup C than in Subgroups A or B. The median residual myometrial thickness (RMT) was significantly lower in Subgroup C than in Subgroups A or B (P = 0.006). Conclusions: Women with prior CSP who had a gestational sac protruding beyond the serosal line had a significantly greater niche length and depth, and lower RMT. This knowledge may guide individualized risk counseling. © 2023 International Society of Ultrasound in Obstetrics and Gynecology. [ABSTRACT FROM AUTHOR]
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- 2024
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3. EP21.16: Three‐dimensional sonography for the diagnosis of congenital uterine anomalies in women with eccentric pregnancy implantation: a novel approach.
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Pekar, M., Meltcer, Y., Revivo, P. Eliassi, Smorgick, N., and Maymon, R.
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FIRST trimester of pregnancy ,EMBRYO implantation ,UTERUS ,PREGNANCY ,ULTRASONIC imaging - Abstract
This article discusses the use of three-dimensional sonography for diagnosing congenital uterine anomalies in women with eccentric pregnancy implantation. The study found that there was a higher incidence of uterine anomalies in cases of eccentric pregnancy implantation compared to concentric pregnancy implantation. Additionally, pregnancies that remained in the eccentric location with uterine malformations resulted in early pregnancy demises, while those that migrated to a more centric location within the endometrial cavity resulted in live births without uterine malformations. The authors suggest that differentiating between eccentric pregnancies in non-anomalous and anomalous uteri is important for management and recommend conducting a 3D-US examination in non-pregnant women to rule out underlying uterine malformations. [Extracted from the article]
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- 2024
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4. EP07.24: Sequence of events leading to medical abortion for fetal indications after 34 weeks of gestation: 23‐years experience from a single medical centre.
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Pekar, M., Berman, Y. Nehama, Meltcer, Y., Cuckle, H., and Maymon, R.
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ABORTION ,CYTOMEGALOVIRUS diseases ,ABORTIFACIENTS ,MEDICAL screening ,PREGNANCY - Abstract
This article, titled "Sequence of events leading to medical abortion for fetal indications after 34 weeks of gestation: 23-years experience from a single medical centre," presents a retrospective study conducted over a 23-year period on fetal abortions in singleton pregnancies. The study found that 0.88% of abortions were carried out after 34 weeks of gestation, with anatomical indications accounting for 55% of cases, chromosomal or genetic indications accounting for 39% of cases, and other indications accounting for the remaining cases. The study suggests that earlier diagnosis and adherence to screening tests and protocols could have significantly reduced the rate of late abortions. [Extracted from the article]
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- 2024
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5. Sequence of events leading to medical abortion for fetal indications after 34 weeks' gestation: 23 years of experience in a single medical center.
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Pekar Zlotin M, Nehama Berman Y, Melcer Y, Cuckle H, and Maymon R
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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., Results: 36/4055 (0.88%) abortions were carried out ≥ 34 weeks' gestation. The indications were anatomical in 20 (55%), chromosomal or genetic in 14 (39%) and CMV infection In two. Evaluation of the sequence of events suggests that an earlier diagnosis would have been unfeasible before the third trimester in 18 cases (50%) because the disorder was developmental and ultrasound findings would not have presented earlier. By contrast, certain other cases might have been diagnosed earlier if the patient had not delayed routine screening or if screening had been administered on schedule., Conclusion: In this series, full adherence to local screening tests and protocols, and timely decision-making could have substantially reduced the late abortion rate by as much as half., (S. Karger AG, Basel.)
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- 2024
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6. The Perinatal Outcomes Following the October 7th Hamas-led Attack on Israel.
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Mor M, Kugler N, Betser M, Moskovich M, Wiener Y, and Maymon R
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- Humans, Israel epidemiology, Pregnancy, Female, Retrospective Studies, Adult, Infant, Newborn, Stillbirth epidemiology, Terrorism statistics & numerical data, Gestational Age, Delivery, Obstetric statistics & numerical data, Delivery, Obstetric methods, Pregnancy Outcome epidemiology
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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., Methods: We conducted a single center retrospective cohort study of all singleton births between 7 October and 7 December 2023. Prenatal emergency labor ward admission numbers and obstetric outcomes during the first 2 months of the war were compared to the combined corresponding periods for the years 2018-2022., Results: During the initial 2 months of the conflict 1379 births were documented. The control group consisted of 7304 deliveries between 2018 and 2022. There was a decrease in daily emergency admissions to the labor ward during the first 5 weeks of the conflict compared to the corresponding periods in the preceding years (51.8 ± 15.0 vs. 57.0 ± 13.0, P = 0.0458). A notable increase in stillbirth rates was observed in the study group compared to the control group (5/1379 [0.36%] vs. 7/7304 [0.1%]; P = 0.014). Both groups exhibited similar gestational ages at birth, rates of preterm and post-term delivery, neonatal birthweights, mode of delivery, and induction of labor rates., Conclusions: In the initial weeks following Hamas's attack on Israel, there was a notable decrease in admissions to the prenatal emergency labor ward. This decline coincided with an increase in the rate of stillbirths among a population not directly involved in the conflict.
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- 2024
7. 3Dimensional sonography for the diagnosis of congenital uterine anomalies in women with eccentric pregnancy implantation: a novel approach.
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Melcer Y, Revivo PE, Pekar-Zlotin M, Smorgick N, and Maymon R
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- Humans, Female, Pregnancy, Adult, Retrospective Studies, Pregnancy Trimester, First, Uterus abnormalities, Uterus diagnostic imaging, Urogenital Abnormalities diagnostic imaging, Urogenital Abnormalities epidemiology, Imaging, Three-Dimensional, Embryo Implantation, Ultrasonography, Prenatal
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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. For each woman in the study group, 10 women identified as having a first-trimester concentric pregnancy implantation during the first-trimester US examination were retrieved from our database (control group). After delivery or pregnancy demise, the presence of uterine anomalies was assessed by a 3D-US examination in all patients., Results: In the study group patients, an increased incidence of uterine anomalies (50.0% vs. 8.8%, p = 0.007) was found, compared to the controls. In the study group, the eccentric location persisted in half of the pregnancies (n = 4; 50%), whereas the other half migrated to a more centric location within the endometrial cavity (n = 4; 50%). The follow-up examination showed that all the early pregnancy demises occurred in cases where the pregnancy persisted at the eccentric location. Uterine malformations were also detected in all these cases., Conclusion: The data point to a significantly higher incidence of uterine anomalies in patients diagnosed with eccentric pregnancy implantation within the endometrial cavity. These results advocate for the value of differentiating between eccentric pregnancies in non-anomalous versus anomalous uteri., (© 2024. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.)
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- 2024
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8. Impact of policy change on late-term abortion: a two-decade analysis.
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Pekar-Zlotin M, Nehama-Berman Y, Melcer Y, Radinsky II, and Maymon R
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- Humans, Female, Pregnancy, Retrospective Studies, Adult, Israel, Health Policy, Pregnancy Trimester, Second, Gestational Age, Pregnancy Trimester, Third, Abortion, Induced statistics & numerical data
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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., Methods: Shamir medical records from January 1, 1998 to December 31, 2021 were examined and yielded 4047 abortions, of which 248 were identified as LTOP preformed after 24 weeks' gestation. These cases were then categorized into two groups. Data including maternal age, obstetric history, indications for abortion, diagnosis, week of termination, and genetic/sonographic findings were analyzed. The approval rates and indications pre- and post-policy change were compared., Results: Group 1 (LTOP 1998-2007) comprised 95 cases (10.6%), and Group 2 (LTOP 2008-2021) was composed of 153 cases (4.9%). Fetal structural anomalies remained the dominant indication for both groups (67.4 and 65.3%, respectively), with a slight increase in confirmed genetic anomalies from 26.3% (Group 1) to 28% (Group 2)., Conclusion: Our findings indicate a decrees in the proportion per year from 10.6 to 4.9% LTOP. Technological advances in genetic evaluation and sonography may have contributed to the early increased detection and decrees in cases reaching LTOP. These results highlight the importance of ongoing ethical reviews and adherence to strict protocols for early detection and termination before 24 weeks' gestation., (© 2024. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.)
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- 2024
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9. Fallopian tube catheterization under 3D vaginal ultrasound guidance followed by highly selective hysterosalpingo-foam sonography: an outpatient procedure.
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Melcer Y, Pekar-Zlotin M, Youngster M, Gat I, and Maymon R
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Purpose: 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., Materials and Methods: 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. A roadrunner was used to cannulate the occluded portion of the fallopian tube. After tubal cannulation, ExEm foam was injected under direct US guidance to confirm tubal recanalization and its passage through the fallopian tubes., Results: During the study period, a total of 14 women with proximal tubal occlusion underwent this procedure. Tubal patency was obtained in 92.8%. No immediate and remote complications were observed. To date three (21.4%) of the patients conceived after tubal catheterization and one had a live birth., Conclusion: Outpatient fallopian tube catheterization under 3D vaginal US guidance followed by selective HyFoSy can be successfully implemented for the diagnosis and treatment of patients with proximal tubal occlusion. The 3D modality enables volume capture of the required acquisitioning and the subsequent post imaging analysis permitting further examination and study. Additional experience is needed to consolidate the feasibility of this innovative procedure and identify the patient subgroups that would benefit the most from this approach., Competing Interests: The authors declare that they have no conflict of interest., (Thieme. All rights reserved.)
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- 2024
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10. Clinical-sonographic scores for the screening of placenta accreta spectrum: a systematic review and meta-analysis.
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Pekar Zlotin M, Sharabi-Nov A, Meiri H, Revivo PE, Melcer Y, Maymon R, and Jauniaux E
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- Female, Humans, Pregnancy, ROC Curve, Sensitivity and Specificity, Prenatal Diagnosis methods, Prenatal Diagnosis statistics & numerical data, Placenta diagnostic imaging, Placenta Accreta diagnosis, Placenta Accreta epidemiology, Ultrasonography, Prenatal methods, Ultrasonography, Prenatal statistics & numerical data
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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., Study Eligibility Criteria: Observational studies providing data on the use of a combined clinical-ultrasound score system applied from mid-pregnancy for the prenatal evaluation of placenta accreta spectrum were included., Methods: Study characteristics were evaluated by 2 independent reviewers using a predesigned protocol registered on PROSPERO (CRD42022332486). Heterogeneity among studies was analyzed with Cochran's Q-test and I
2 statistics. Statistical heterogeneity was quantified by estimating the variance between the studies using I2 statistics. The area under the receiver operating characteristic curve of each score and their summary receiver operating characteristic curves were calculated with sensitivity and specificity, and the integrated score of the summaries of the receiver operating characteristic curves of all sonographic markers was calculated. Forest plots were used to develop the meta-analysis of each sonographic marker and for the integrated sonographic score., Results: Of 1028 articles reviewed, 12 cohorts and 2 case-control studies including 1630 patients screened for placenta accreta spectrum by clinical-ultrasound scores met the eligibility criteria. A diagnosis of placenta accreta spectrum was reported in 602 (36.9%) cases, for which 547 (90.9%) intraoperative findings and/or histopathologic data were described. A wide variation was observed among the studies in reported sensitivities and specificities and in thresholds used for the identification of patients with a high probability of placenta accreta spectrum at birth. The summaries of the areas under the curve of the individual sonographic scores ranged from 0.85 (the lowest) for subplacental hypervascularity to 0.91 for placental location in the lower uterine segment, myometrial thinning, and placental lacunae and 0.95 for the loss of clear zone. Only 4 studies included placental bulging in their sonographic score system, and therefore no meta-analysis for this score was performed. The integrated summary of the areas under the curve was 0.83 (95% confidence interval, 79-0.86). Forest plot analysis revealed integrated sensitivities and specificities of 0.68 (95% confidence interval, 0.53-0.80) and 0.88 (95% confidence interval, 0.68-0.96), respectively., Conclusion: Clinical-sonographic score systems can contribute to the prenatal screening of patients at risk of placenta accreta spectrum at birth. Although we included multiple sonographic studies conducted during the mid-pregnancy period, standardized evaluation should be performed not only with strict ultrasound criteria for the placental position, mid third trimester gestational age at examination, and sonographic markers associated with PAS. Numeric sensitivities, specificities, NPVs, PPV, LR-, and LR+ should be recorded prospectively to assess their accuracy in different set-ups and PTP should be verified at delivery. The variables recommended for most predictive screening are: loss of clear zone underneath the placental bed, placentation in the LUS, and placenta lacunae., (Crown Copyright © 2024. Published by Elsevier Inc. All rights reserved.)- Published
- 2024
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11. Oligohydramnios at term in the high-risk population - how severe is severe?
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Pekar-Zlotin M, Hirsh N, Melcer Y, Wiener Y, Kugler N, Zilberman Sharon N, and Maymon R
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- Humans, Female, Pregnancy, Retrospective Studies, Adult, Severity of Illness Index, Risk Factors, Pregnancy, High-Risk, Gestational Age, Infant, Newborn, Cesarean Section statistics & numerical data, Oligohydramnios epidemiology, Oligohydramnios diagnosis
- Abstract
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.)., Methods: This retrospective cohort study of 1,114 singleton term (≥37), oligohydramnios (AFI <50 mm) pregnancies from Shamir Medical Center between 2017 and 2021. Compering the low-risk to high-risk groups with subdivision by severity of oligohydramnios., Results: A total of 211 subjects (19 %) were high-risk cases and 903 (81 %) low-risk cases. Comparing these two groups, subjects of the high-risk group were older (31.34 ± 5.85 vs. 29.51 vs. 4.96), had earlier gestational age at delivery 39.53 ± 1.18 vs. 40, had higher mean AFI (35 ± 12.7 vs. 33 ± 14.5), were subject to more labor inductions (81 vs. 69.7 %), and CS rate (19.9 vs. 12.4 %). Logistic regression revealed a need for more cesarean sections in the high-risk group. Additionally, more labor inductions and a higher risk of negative fetal outcomes., Conclusions: This study highlights the importance of considering pregnancy risk factors when we are approaching oligohydramnios in high-risk pregnancies., (© 2024 Walter de Gruyter GmbH, Berlin/Boston.)
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- 2024
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12. European association of perinatal medicine (EAPM) position statement: Screening, diagnosis and management of congenital anomalies of the umbilical cord.
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Jauniaux E, Ebbing C, Oyelese Y, Maymon R, Prefumo F, and Bhide A
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- Humans, Female, Pregnancy, Vasa Previa diagnosis, Vasa Previa diagnostic imaging, Vasa Previa therapy, Umbilical Arteries diagnostic imaging, Umbilical Arteries abnormalities, Europe, Umbilical Cord abnormalities, Umbilical Cord diagnostic imaging, Ultrasonography, Prenatal
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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). These anomalies, even when not associated with fetal structural defects, increase the risk of adverse perinatal outcome including, fetal growth restriction and stillbirth. In the absence of prenatal diagnosis, vasa previa is associated with the highest perinatal morbidity and mortality of all congenital anomalies of the umbilical cord. Most cases can be detected by ultrasound from the beginning of the second trimester and should be included in the routine mid-pregnancy ultrasound examination. Documentation should include cord insertion site, number of vessels in the cord, and if other pathologies have been detected. Pregnancies at increased risk of velamentous cord insertion should be screened for vasa previa using transvaginal ultrasound and colour Doppler imaging. If a velamentous cord insertion or isolated single umbilical artery is detected, individualised follow-up during pregnancy and tailored obstetric management are indicated., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024 The Author(s). Published by Elsevier B.V. All rights reserved.)
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- 2024
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13. First-trimester cesarean scar pregnancy: a comparative analysis of treatment options from the international registry.
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Kaelin Agten A, Jurkovic D, Timor-Tritsch I, Jones N, Johnson S, Monteagudo A, Huirne J, Fleisher J, Maymon R, Herrera T, Prefumo F, Contag S, Cordoba M, and Manegold-Brauer G
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- Humans, Female, Pregnancy, Adult, Ultrasonography, Prenatal, Vacuum Curettage, Misoprostol therapeutic use, Uterine Artery Embolization, Cicatrix, Cesarean Section adverse effects, Cesarean Section statistics & numerical data, Pregnancy Trimester, First, Pregnancy, Ectopic therapy, Pregnancy, Ectopic surgery, Registries, Abortifacient Agents, Nonsteroidal therapeutic use, Methotrexate therapeutic use
- Abstract
Background: A cesarean scar pregnancy is an iatrogenic consequence of a previous cesarean delivery. The gestational sac implants into a niche created by the incision of the previous cesarean delivery, and this carries a substantial risk for major maternal complications. The aim of this study was to report, analyze, and compare the effectiveness and safety of different treatments options for cesarean scar pregnancies managed in the first trimester through a registry., Objective: This study aimed to evaluated the ultrasound findings, disease behavior, and management of first-trimester cesarean scar pregnancies., Study Design: We created an international registry of cesarean scar pregnancy cases to study the ultrasound findings, disease behavior, and management of cesarean scar pregnancies. The Cesarean Scar Pregnancy Registry collects anonymized ultrasound and clinical data of individual patients with a cesarean scar pregnancy on a secure, digital information platform. Cases were uploaded by 31 participating centers across 19 countries. In this study, we only included live and failing cesarean scar pregnancies (with or without a positive fetal heart beat) that received active treatment (medical or surgical) before 12+6 weeks' gestation to evaluate the effectiveness and safety of the different management options. Patients managed expectantly were not included in this study and will be reported separately. Treatment was classified as successful if it led to a complete resolution of the pregnancy without the need for any additional medical interventions., Results: Between August 29, 2018, and February 28, 2023, we recorded 460 patients with cesarean scar pregnancies (281 live, 179 failing cesarean scar pregnancy) who fulfilled the inclusion criteria and were registered. A total of 270 of 460 (58.7%) patients were managed surgically, 123 of 460 (26.7%) patients underwent medical management, 46 of 460 (10%) patients underwent balloon management, and 21 of 460 (4.6%) patients received other, less frequently used treatment options. Suction evacuation was very effective with a success rate of 202 of 221 (91.5%; 95% confidence interval, 87.8-95.2), whereas systemic methotrexate was least effective with only 38 of 64 (59.4%; 95% confidence interval, 48.4-70.4) patients not requiring additional treatment. Overall, surgical treatment of cesarean scar pregnancies was successful in 236 of 258 (91.5%, 95% confidence interval, 88.4-94.5) patients and complications were observed in 24 of 258 patients (9.3%; 95% confidence interval, 6.6-11.9)., Conclusion: A cesarean scar pregnancy can be managed effectively in the first trimester of pregnancy in more than 90% of cases with either suction evacuation, balloon treatment, or surgical excision. The effectiveness of all treatment options decreases with advancing gestational age, and cesarean scar pregnancies should be treated as early as possible after confirmation of the diagnosis. Local medical treatment with potassium chloride or methotrexate is less efficient and has higher rates of complications than the other treatment options. Systemic methotrexate has a substantial risk of failing and a higher complication rate and should not be recommended as first-line treatment., (Copyright © 2023 The Author(s). Published by Elsevier Inc. All rights reserved.)
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- 2024
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14. Vaccination in twin pregnancies: comparison between immunization before conception and during pregnancy.
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Svirsky R, Rabbi ML, Hamad RA, Sharabi-Nov A, Kugler N, Galoyan N, Sharon NZ, Meiri H, Maymon R, and Levtzion-Korach O
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- Humans, Female, Pregnancy, Adult, Prospective Studies, Pregnancy Complications, Infectious prevention & control, Pregnancy Complications, Infectious immunology, Antibodies, Viral blood, Antibodies, Viral immunology, Antibodies, Neutralizing blood, Antibodies, Neutralizing immunology, Spike Glycoprotein, Coronavirus immunology, Pregnancy, Twin immunology, COVID-19 prevention & control, COVID-19 immunology, COVID-19 Vaccines immunology, COVID-19 Vaccines administration & dosage, Vaccination, SARS-CoV-2 immunology, Immunoglobulin G blood, Immunoglobulin G immunology
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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. The patient's medical records, including vaccination and PCR test results, were collected from the hospital's electronic database. Age-matched non-pregnant women were used as a control group. We enrolled 83 women with twin pregnancies. 49 women were vaccinated before conception, 21 women were vaccinated during pregnancy, and 13 were not vaccinated. Of the 13 women who weren't vaccinated, three became positive during pregnancy, and all three were severely ill. By contrast, in women who were vaccinated during or before pregnancy, COVID-19 infection during pregnancy caused only mild symptoms. A ten-fold lower level of neutralizing Anti-S-IgG in the 3rd trimester was observed in healthy women who were vaccinated before conception and remained healthy until discharge from the hospital after delivery 1605 (IQR: 763-2410) compared to the healthy women who were vaccinated during pregnancy 152 AU/mL (IQR: 54-360). This difference was higher among women who were infected by COVID-19 (as verified by a positive PCR test). The third-trimester level of neutralizing Ant-S-IgG in the infected group was 4770 AU/mL (4760-6100) in infected women vaccinated before conception compared to those vaccinated during pregnancy who had 70 AU/mL (IQR: 20-170) (p < 0.001). In women vaccinated at 13-16 weeks gestation, neutralizing Anti-S-IgG at 20-22 weeks went up to 372 AU/mL (IQR: 120-1598) but rapidly dropped to 112 AU/mL (IQR: 54-357) at 28-30 weeks, (p < 0.001), a faster decline than in women vaccinated at a median 22 weeks before conception. Being infected by COVID-19 before conception was linked to having low Anti-S-IgG levels during pregnancy, whereas being infected by COVID-19 during pregnancy led to a very high response in the 3rd trimester. In twin pregnancies, significantly lower neutralizing Anti-S-IgG levels were observed in women vaccinated during pregnancy compared to those vaccinated before conception, whether infected or not infected by COVID-19. A full course of vaccination before conception is recommended.Trial registration. ClinicalTrials.gov Protocol Registration and Results System (PRS) Receipt Release Date: October 4, 2021. https://clinicaltrials.gov/ ID: NCT04595214., (© 2024. The Author(s).)
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- 2024
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15. Cost-effectiveness of universal routine sonographic cervical-length measurement at 19 to 25 weeks' gestation.
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Leshno M, Meiri H, and Maymon R
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- Pregnancy, Infant, Newborn, Female, Humans, Cost-Benefit Analysis, Cervical Length Measurement, Birth Weight, Progesterone, Premature Birth diagnosis, Premature Birth epidemiology, Premature Birth prevention & control
- Abstract
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. This study used the national delivery registry of Israel's Ministry of Health. All women diagnosed with a second-trimester cervical length <25 mm were treated with vaginal progesterone and were monitored with a bimonthly ultrasound scan for cervical dynamics and threat of early delivery. Preterm birth prevalence associated with short cervical length, the efficacy of progesterone in preterm birth prevention, and the accuracy of cervical length measurements were derived from previous studies. The cost of progesterone and bimonthly sonographic surveillance, low birthweight delivery, newborn admission to intensive care units, the first-year costs of managing preterm birth and low birthweight, and instances of handicaps and the cost of their follow-up were extracted from the publicly posted registry of Israel's Ministry of Health and Israel Social Securities data. Monte Carlo simulations decision tree mode, Tornado diagrams, and 1- and 2-way sensitivity analyses were implemented and the base case and sensitivity to parameters that were predicted to influence cost-effectiveness were calculated., Results: Without cervical length screening, the discounted quality-adjusted life years were 30.179, and with universal cervical length screening, it increased to 30.198 (difference of 0.018 quality-adjusted life years). The average cost of no screening for cervical length strategy was $1047, and for universal cervical length screening, it was reduced to $998. The calculated incremental cost-effectiveness ratio was -$2676 per quality-adjusted life year (dividing the difference in costs by the difference in quality-adjusted life years). Monte Carlo simulation of cervical length screening of 170,000 singleton newborns (rounded large number close to the number of singleton newborns in Israel) showed that 95.17% of all babies were delivered at gestational week ≥37 in comparison with 94.46% of babies with the no screening strategy. Given 170,000 singleton births, the national savings of screening for short cervical length when compared with no cervical length screening amounted to $8.31M annually, equating to $48.84 for a base case, and the incremental cost-effectiveness ratio for each case of low birthweight or very low birthweight avoided was -$14,718. A cervical length <25 mm was measured for 30,090 women, and of those, 24,650 were false positives. The major parameters that affected the incremental cost-effectiveness ratio were the incidence of preterm birth, the specificity of cervical length measurements, and the efficacy of progesterone treatment. At a preterm birth incidence of <3%, universal screening does not lead to a cost saving., Conclusion: National universal cervical length screening should be incorporated into the routine anomaly scan in the second trimester, because it leads to a drop in the incidence of preterm birth and low birthweight babies in singleton pregnancies, thereby saving costs related to the newborn and gaining quality-adjusted life years., (Copyright © 2024 The Author(s). Published by Elsevier Inc. All rights reserved.)
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- 2024
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16. Vasa previa in singleton pregnancies: diagnosis and clinical management based on an international expert consensus.
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Oyelese Y, Javinani A, Gudanowski B, Krispin E, Rebarber A, Akolekar R, Catanzarite V, D'Souza R, Bronsteen R, Odibo A, Scheier MA, Hasegawa J, Jauniaux E, Lees C, Srinivasan D, Daly-Jones E, Duncombe G, Melcer Y, Maymon R, Silver R, Prefumo F, Tachibana D, Henrich W, Cincotta R, Shainker SA, Ranzini AC, Roman AS, Chmait R, Hernandez-Andrade EA, Rolnik DL, Sepulveda W, and Shamshirsaz AA
- Abstract
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., Study Design: A 4-round focus group discussion and a 3-round Delphi survey of an international panel of experts on vasa previa were conducted. Experts were selected on the basis of their publication record on vasa previa. First, we convened a focus group discussion panel of 20 experts and agreed on which issues were unresolved in the diagnosis and management of vasa previa. A 3-round anonymous electronic survey was then sent to the full expert panel. Survey questions were presented on the diagnosis and management of vasa previa, which the experts were asked to rate on a 5-point Likert scale (from "strongly disagree"=1 to "strongly agree"=5). Consensus was defined as a median score of 5. Following responses to each round, any statements that had median scores of ≤3 were deemed to have had no consensus and were excluded. Statements with a median score of 4 were revised and re-presented to the experts in the next round. Consensus and nonconsensus statements were then aggregated., Results: A total of 68 international experts were invited to participate in the study, of which 57 participated. Experts were from 13 countries on 5 continents and have contributed to >80% of published cohort studies on vasa previa, as well as national and international society guidelines. Completion rates were 84%, 93%, and 91% for the first, second, and third rounds, respectively, and 71% completed all 3 rounds. The panel reached a consensus on 26 statements regarding the diagnosis and key points of management of vasa previa, including the following: (1) although there is no agreement on the distance between the fetal vessels and the cervical internal os to define vasa previa, the definition should not be limited to a 2-cm distance; (2) all pregnancies should be screened for vasa previa with routine examination for placental cord insertion and a color Doppler sweep of the region over the cervix at the second-trimester anatomy scan; (3) when a low-lying placenta or placenta previa is found in the second trimester, a transvaginal ultrasound with Doppler should be performed at approximately 32 weeks to rule out vasa previa; (4) outpatient management of asymptomatic patients without risk factors for preterm birth is reasonable; (5) asymptomatic patients with vasa previa should be delivered by scheduled cesarean delivery between 35 and 37 weeks of gestation; and (6) there was no agreement on routine hospitalization, avoidance of intercourse, or use of 3-dimensional ultrasound for diagnosis of vasa previa., Conclusion: Through focus group discussion and a Delphi process, an international expert panel reached consensus on the definition, screening, clinical management, and timing of delivery in vasa previa, which could inform the development of new clinical guidelines., (Copyright © 2024 The Authors. Published by Elsevier Inc. All rights reserved.)
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- 2024
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17. [NUCHAL TRANSLUCENCY CONCURRENT WITH EARLY ANOMALY SCAN: TIME TO RECONSIDER].
- Author
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Maymon R, Daniel-Spiegel E, Svirsky R, Melcer Y, and Yagel S
- Subjects
- Pregnancy, Female, Humans, Pregnancy Trimester, First, Fetus, Gestational Age, Ultrasonography, Prenatal, Nuchal Translucency Measurement, Down Syndrome diagnostic imaging
- Abstract
Introduction: 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. Later additional sonographic findings were found, including nasal bone assessment, and Doppler flow studies of the ductus venosus and tricuspid regurgitation Technology advancement accompanied by sonographers' skills enhancement allows (at the time frame of the nuchal scan) a detailed anomaly scan. Additional screening for pregnancy complication was achieved using first trimester multi marker assessment, alerting for preeclamptic toxemia or placenta accreta. Currently, many national and international professional organizations recommend performing the nuchal scan concurrent with an early anomaly scan both at the same time of gestation. This approach is different than the one performed in Israel, whereas the nuchal scan is conducted separately and 2-3 weeks later an anomaly scan is offered. We call for reconsideration of the sequential approach and performing all the tests in a comprehensive first trimester clinic.
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- 2024
18. [TERMINATION OF PREGNANCY DUE TO FETAL ABNORMALITIES PERFORMED AFTER 24 WEEKS OF GESTATION: THE EXPERIENCE OF THE DEPARTMENT OF OBSTETRICS AND GYNECOLOGY AT SHAMIR (ASSAF HAROFE) MEDICAL CENTER BETWEEN THE YEARS 1998-2021].
- Author
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Berman Y, Pekar-Zlotin M, Melcer Y, and Maymon R
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- Pregnancy, Female, Humans, Infant, Cohort Studies, Pregnancy Trimester, Third, Gynecology, Abortion, Induced, Obstetrics, Down Syndrome
- Abstract
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., Methods: In this cohort study, 4,057 patients who had abortions due to fetal abnormalities in the Shamir Medical Center during the years 1998-2021, were divided according to the abortion indications. Of these, 3539 (91.28%) had early abortion (24 weeks and below) and 338 (8.72%) had late abortions (24 week and later)., Results: In general, the leading reasons for abortions are chromosomal and genetic (1862 [46%]) as well as anatomical indication (1868 [46%]). It was found that the leading indication for early abortion is the chromosomal or genetic abnormalities (1702 [48.1%]), while the leading indication for late abortion is anatomical defects (204 [60.4%]) (p=0.000). In late abortion, the leading anatomical cause is heart defects (62 [30.54%]) followed by central nervous system defects (56 [26.6%]), and the leading chromosomal cause is trisomy 21 (Down syndrome) (23 [22.33%]). When examining the sequence of events that led to late abortion, the leading reason is abnormal findings that required further studies (125 [37%])., Conclusions: There is great importance in trying to reduce late pregnancy abortion by understanding the sequence of events and the reasons that led to it. Changing the processes that need to be performed can be implemented by combining pathways: improving the technological means, using more accurate instrumentation and advanced molecular genetics. Furthermore, it is essential to raise the awareness of the pregnant women on screening tests, and conducting this as early as possible. Additionally, it is important to raise the skill of the operators. We believe that incorporating all those actions will lead to earlier diagnosis and to a decrease in late abortions, a promising message both from the point of view of the women and the medical staff, due to the difficulty in carrying out late pregnancy terminations.
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- 2024
19. [EFFECT OF ETHNICITY ON BACTERIAL RESISTANCE AND OBSTETRICAL OUTCOMES AMONG PREGNANT WOMEN ADMITTED TO MATERNAL-FETAL MEDICINE UNIT WITH THE DIAGNOSIS OF PYELONEPHRITIS DURING 2017-2020].
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Gefen Y, Wiener Y, Or G, Pekar Zloti M, and Maymon R
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- Female, Humans, Pregnancy, Pregnant Women, Perinatology, Anti-Bacterial Agents pharmacology, Anti-Bacterial Agents therapeutic use, Ethnicity, Pyelonephritis diagnosis, Pyelonephritis drug therapy, Pyelonephritis microbiology
- Abstract
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., Aims: Should ethnic origin play a role in optimizing antibiotic therapy? To better comprehend, we have chosen a cohort of hospitalized pregnant patients with a pyelonephritis diagnosis., Methods: A total of 105 cases of patients hospitalized in the Shamir Medical Center between the years 2017-2020 were analysed. Feto-maternal outcomes and antibiotic resistance in relation to ethnicity were plotted statistically using chi-square tests (Arab, 40%; North Africa, 13%; Europe-Ashkenaz,10%; Ethiopia/Iran/Kavkaz/Iraq/other, 3%; Turkey/Uzbekistan/Yemen 2%)., Results: Ethnic groups included Arab (40%), others referred as "None-Arab". The antibiotic resistance panel revealed differences comparing the two largest groups (Arab% VS non-Arab%), whereas there was no correlation between any ethnic group and obstetrics parameter. Arab women were more resistant to ciprofloxacin (33% vs 7%, P= 0.026) and less sensitive to imipenem (60% vs 90.9%, P= 0.03); less sensitive to ceftriaxone and cefuroxime., Conclusions: There was a correlation between ethnic origin of pregnant patients diagnosed with pyelonephritis and antibiotic resistance. We hope ethnicity, might, in some cases, assist physicians choosing the optimal therapy.
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- 2024
20. Utilizing ChatGPT to Facilitate Referrals for Fetal Echocardiography.
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Gordin Kopylov L, Goldrat I, Maymon R, Svirsky R, Wiener Y, and Klang E
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- Humans, Female, Pregnancy, Retrospective Studies, Artificial Intelligence, Echocardiography methods, Echocardiography standards, Referral and Consultation, Heart Defects, Congenital diagnostic imaging, Ultrasonography, Prenatal standards, Ultrasonography, Prenatal methods
- Abstract
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. We compared experts and AI's agreement on referral necessity, with experts addressing discrepancies., Results: Total of 59 FE cases were addressed retrospectively. Cardiologist, gynecologist, and AI recommended performing FE in 47.5%, 49.2%, and 59.0% of cases, respectively. Comparing AI recommendations to experts indicated agreement of around 80.0% with both experts (p < 0.001). Notably, AI suggested more echocardiographies for minor CHD (64.7%) compared to experts (47.1%), and for major CHD, experts recommended performing FE in all cases (100%) while AI recommended in majority of cases (90.9%). Discrepancies between AI and experts are detailed and reviewed., Conclusions: The evaluation found moderate agreement between AI and experts. Contextual misunderstandings and lack of specialized medical knowledge limit AI, necessitating clinical guideline guidance. Despite shortcomings, AI's referrals comprised 65% of minor CHD cases versus experts 47%, suggesting its potential as a cautious decision aid for clinicians., (© 2024 S. Karger AG, Basel.)
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- 2024
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21. Incidence and causes of perinatal death in prenatally diagnosed vasa previa: a systematic review and meta-analysis.
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Conyers S, Oyelese Y, Javinani A, Jamali M, Zargarzadeh N, Akolekar R, Hasegawa J, Melcer Y, Maymon R, Bronsteen R, Roman A, and Shamshirsaz AA
- Subjects
- Pregnancy, Infant, Newborn, Female, Humans, Incidence, Prenatal Diagnosis, Stillbirth epidemiology, Ultrasonography, Prenatal, Vasa Previa diagnostic imaging, Vasa Previa epidemiology, Perinatal Death
- Abstract
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. Case series or reports were excluded from the meta-analysis. All cases in which prenatal diagnosis was not made were excluded from the study., Methods: The programming language software R (version 4.2.2) was used to conduct the meta-analysis. The data were logit transformed and pooled using the fixed effects model. The between-study heterogeneity was reported by I
2 . The publication bias was evaluated using a funnel plot and the Peters regression test. The Newcastle-Ottawa scale was used to assess the risk of bias., Results: Overall, 113 studies with a cumulative sample size of 1297 pregnant individuals were included. This study included 25 cohort studies with 1167 pregnancies and 88 case series or reports with 130 pregnancies. Moreover, 13 perinatal deaths occurred among these pregnancies, consisting of 2 stillbirths and 11 neonatal deaths. Among the cohort studies, the overall perinatal mortality was 0.94% (95% confidence interval, 0.52-1.70; I2 =0.0%). The pooled perinatal mortality attributed to vasa previa was 0.51% (95% confidence interval, 0.23-1.14; I2 =0.0%). Stillbirth and neonatal death were reported in 0.20% (95% confidence interval, 0.05-0.80; I2 =0.0%) and 0.77% (95% confidence interval, 0.40-1.48; I2 =0.0%) of pregnancies, respectively., Conclusion: Perinatal death is uncommon after a prenatal diagnosis of vasa previa. Approximately half of the cases of perinatal mortality are not directly attributable to vasa previa. This information will help in guiding physicians in counseling and will provide reassurance to pregnant individuals with a prenatal diagnosis of vasa previa., (Copyright © 2023 Elsevier Inc. All rights reserved.)- Published
- 2024
- Full Text
- View/download PDF
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