Publications by authors named "Antonios Siargkas"

Marginal cord insertion (MCI) is increasingly recognized as a pathological variation that necessitates early diagnosis. Identifying the risk factors associated with MCI is essential for improving prenatal screening and optimizing management strategies. Our meta-analysis systematically and quantitatively synthesizes the current evidence on various potential risk factors for MCI.

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Article Synopsis
  • This meta-analysis investigates the risk factors associated with velamentous cord insertion (VCI), aiming to improve prenatal identification of the condition.
  • It included data from 14 cohort and 4 case-control studies, encompassing over 952,000 singleton pregnancies, revealing an overall VCI prevalence of 1.54%.
  • Key risk factors identified include assisted reproductive technology, being a first-time mother (nulliparity), smoking, and having placenta previa, which could help refine screening strategies for women at greater risk.
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Article Synopsis
  • Cervical cerclage (CC) is a key procedure to help prevent premature delivery caused by cervical insufficiency, thereby improving infant health outcomes.
  • This study reviews guidelines from major medical organizations on when and how to perform CC, highlighting similarities in recommendations.
  • All reviewed guidelines suggest CC is appropriate for women with a history of preterm deliveries or miscarriages, but differ on additional indications and management practices following CC.
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Objectives: To investigate the incidence and risk factors of bilobate placenta, as well as to assess its impact on preeclampsia (PE), preterm delivery (PTD) and small-for-gestational age (SGA) neonates.

Methods: A prospective study of singleton pregnancies, undergoing routine anomaly scan at 20-23 gestational weeks, was conducted, between 2018 and 2022. The impact of prenatally diagnosed bilobate placenta on PE, PTD and SGA was assessed.

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: To assess the incidence of prenatally diagnosed isolated single umbilical artery (iSUA) and its impact on major pregnancy outcomes, as well as to investigate potential risk factors. : A prospective study of singleton pregnancies, undergoing routine anomaly scans at 20-24 weeks of gestation, was carried out from 2018 to 2022. The effect of sonographically detected iSUA on small-for-gestational-age neonates (SGA) and preterm delivery (PTD) was evaluated using parameterized Student's -test, nonparametric Mann-Whitney U test and the chi-square test.

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Objectives: COVID-19 and the implementation of lockdowns have impacted daily lives worldwide. This systematic review and meta-analysis aimed to investigate the impact of lockdowns on the smoking and vaping behaviours of adults during the pandemic.

Study Design: This was a systematic review and meta-analysis.

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Objective: Despite its high prevalence and the possible link with perinatal complications, marginal cord insertion is surrounded by considerable controversy regarding management. This meta-analysis aimed to study its association with several perinatal outcomes in a manner that provides trustworthy and exact effect measures, enabling us eventually to evaluate its overall risk for pregnancy.

Data Sources: A systematic search was performed in Medline, Scopus, and the Cochrane Library on July 30, 2022, to identify eligible studies.

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Background: The aim of this meta-analysis was to evaluate the risk of adverse pregnancy outcomes in women affected with celiac disease (CD), and to further estimate the impact of early disease diagnosis and subsequent adherence to a gluten-free diet (GFD) on obstetric complications.

Methods: A systematic search for English language observational studies was conducted in Medline, Scopus, and the Cochrane Library, from inception till April 2022, to identify relevant studies reporting on the incidence of adverse pregnancy outcomes in women with CD. Odds ratios (OR) and relative risks (RR) with 95% confidence intervals (CIs) were used to combine data from case-control and cohort studies, respectively.

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Objective: Velamentous cord insertion may be identified prenatally, but the clinical implications of this diagnosis remain controversial. This meta-analysis aimed to quantitatively summarize current data on the association of velamentous cord insertion and adverse perinatal outcomes.

Data Sources: A systematic search was performed in MEDLINE, Scopus, and the Cochrane Library from inception until May 22, 2022 to identify eligible studies.

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Objectives: We conducted a systematic review and meta-analysis to quantitatively summarize the present data on the association of prenatally identified lateral placenta in singleton pregnancies with small for gestational age (SGA) neonates, preeclampsia and other perinatal outcomes.

Methods: From inception to November 2021, we searched PubMed/Medline, Scopus and The Cochrane Library for papers comparing the risk of SGA and preeclampsia, as well as other perinatal outcomes in singleton pregnancies with a prenatally identified lateral placenta to those with non-lateral placentas. The revised Newcastle-Ottawa Scale was used to evaluate the quality of eligible papers.

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Several dietary exposures have been associated with gastric cancer (GC), but the associations are often heterogenous and may be afflicted by inherent biases. In the context of an Umbrella Review (UR), we provide an overview and a critical evaluation of the strength and quality, and evidence classification of the associations of diet-related exposures in relation to the risk of GC. We searched PubMed and Scopus for eligible meta-analyses of observational studies published in English from inception to 12 December 2021, and for any identified association, we applied robust epidemiological validity evaluation criteria and individual study quality assessment using AMSTAR.

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Objectives: A systematic review and meta-analysis was conducted to quantitatively synthesize the current evidence on the association of prenatally diagnosed isolated single umbilical artery (iSUA) in singleton pregnancies with small for gestational age (SGA) neonates and other perinatal outcomes.

Methods: A search of PubMed/Medline, Scopus and The Cochrane Library was conducted, from inception to February 2021, in order to identify studies comparing the risk of SGA and other perinatal adverse outcomes in prenatally diagnosed iSUA singleton pregnancies vs. those with a 3-vessel cord (3VC).

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Chronic kidney disease (CKD) is associated with aggravating factors which can affect both body composition and nutritional status. The purpose of the present systematic review was to investigate the potential effects of any physical activity on body composition or nutritional status among patients with stage 5 CKD undergoing hemodialysis (HD). A literature search on PubMed, Scopus, Web of Science, Google Scholar, and Cochrane was conducted and 14 randomized clinical trials were included.

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The purpose of the present meta-analysis was to assess the efficacy of cannabidiol (CBD) oil in patients with schizophrenia. A search was conducted in EMBASE, PubMed, Cochrane Central Register of Controlled Trials (CENTRAL), ClinicalTrials.gov and WHO International Clinical Trials Registry Platform (ICTRP) up to April 24th, 2020.

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