Publications by authors named "Oya Demirci"

Familial Mediterranean Fever (FMF) is frequently diagnosed during reproductive ages, but its impact on pregnancy remains unclear. We aimed to evaluate maternal and neonatal outcomes in FMF pregnancies by comparing before and after diagnosis periods as well as with healthy controls, and to identify predictors of adverse outcomes. This retrospective, cross-sectional study included 215 pregnancies (129 before and 86 after FMF diagnosis) from 81 women with FMF and 94 pregnancies from 42 healthy controls.

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Objective: Fetal ventriculomegaly (VM) is a common prenatal ultrasound finding with a wide range of etiologies and variable prognostic outcomes. This study aimed to evaluate the prenatal characteristics, genetic findings, and postnatal neurodevelopmental outcomes of fetuses diagnosed with VM, according to the severity of VM and associated abnormalities.

Methods: This retrospective single-center study includes 357 fetuses diagnosed with VM between 2020 and 2024.

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Objective: This study aimed to evaluate the FIB-4 and APRI scores in patients with gestational diabetes mellitus (GDM) and investigate their associations with neonatal outcomes. Additionally, the predictive value of these non-invasive fibrosis indices for GDM and adverse perinatal outcomes was assessed.

Materials And Methods: In this retrospective case-control study, 200 pregnant women diagnosed with GDM and 200 healthy controls were analyzed.

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Objective: The aim of this study was to evaluate the role of substance P in pruritus in patients with intrahepatic cholestasis of pregnancy.

Methods: This prospective case-control study was conducted on 50 intrahepatic cholestasis of pregnancy patients and 30 gestational age-matched healthy pregnant women. The groups were compared in terms of serum substance P concentrations, and the correlation between these concentrations and self-reported itching was evaluated in patients with intrahepatic cholestasis of pregnancy.

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Objective: Lymphangioma is a vascular malformation that develops during the second and third trimesters of pregnancy. While often asymptomatic, it may cause pressure adjacent to vital organs and vascular structures. Therefore, comprehensive prenatal monitoring is essential to anticipate complications and plan appropriate postdelivery interventions.

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This study aimed to evaluate the efficacy of middle cerebral artery peak systolic velocity measurement in predicting moderate-to-severe fetal anemia and assess perinatal outcomes in patients who underwent intrauterine transfusion for fetal anemia.A retrospective cohort of 91 pregnant women at risk of fetal anemia, delivered between 2016 and 2024, was studied. The efficacy of middle cerebral artery peak systolic velocity in predicting moderate-severe fetal anemia was assessed.

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: Congenital duodenal obstruction (CDO) is a very rare anomaly with an incidence of 1 in 5000-10,000 live births. Annular pancreas is one of the reasons for CDO and is defined as the pancreatic tissue encircling the duodenum. The exact cause of annular pancreas remains unclear.

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Objectives: This study aimed to evaluate the effect of placental membrane covering of the omphalocele sac on the healing of giant omphaloceles requiring silo repair that could not be treated primarily.

Methods: This prospective study was performed between October 2021 and October 2023 with the approval of our hospital's ethics committee. All pregnant women diagnosed with prenatal giant omphalocele were informed that their own placenta could be used for omphalocele repair if necessary, and their consent was obtained.

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To assess the prenatal course and early postnatal outcomes of fetuses diagnosed with tricuspid atresia and to identify predictors of survival. This was a retrospective study of 25 fetuses diagnosed with tricuspid atresia in a single tertiary referral center, evaluating prenatal echocardiographic features and postnatal outcomes. A total of 4 of 29 initially diagnosed fetuses were excluded due to changes in diagnosis or loss to follow-up, leaving 25 fetuses for analysis.

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Purpose: We presented the experience of a tertiary care center for maternal and fetal diseases and assessed the findings fetuses with double-inlet left ventricle (DILV) regarding fetal echocardiography, prenatal course including fetal growth and death, and postnatal outcome.

Methods: In this retrospective study, patients diagnosed with DILV via prenatal ultrasound in the maternal-fetal medicine department between 2015 and 2023 were included to evaluate important aspects of prenatal diagnosis and course, as well as postnatal management and outcome.

Results: There were 33 DILV cases prenatally diagnosed and postnatally confirmed.

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Introduction: Persistent right umbilical vein (PRUV) is an embryonic vascular abnormality. Recent studies suggested that the perinatal outcome was good and the risk of aneuploidy was low in isolated forms. Our purpose in this study was to assess the relation of PRUV with genetic abnormalities and demonstrate concomitant malformations and perinatal outcomes of these fetuses.

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Objective: The aim of the current study was to reveal ultrasonographic and clinical features, prenatal-postnatal outcomes and prognostic risk factors of fetal volvulus.

Method: This retrospective study evaluated all cases of fetal volvulus diagnosed between 2018 and 2024 at the Perinatology center of Zeynep Kamil Women and Children Diseases Training and Research Hospital. In the vast majority of cases, the pediatric surgery team confirmed the conclusive diagnosis of volvulus during the postnatal period.

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Objectives: The purpose of the study is to estimate factors affecting survival in prenatally diagnosed hypoplastic left heart syndrome (HLHS) and echocardiographic features predicting poor prognosis and early neonatal death.

Methods: This study was designed as a retrospective cohort study. Cases of hypoplastic left heart syndrome diagnosed in the prenatal period between 2014 and 2023 were extracted from electronic medical records.

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Purpose: Fetal heart diseases significantly contribute to neonatal mortality. Improved prenatal diagnostics enable defect detection before delivery, emphasizing the need for a personalized approach to address anomalies and predict outcomes. Categorizing diseases into risk classes aids obstetricians in counseling and delivery decisions.

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Purpose: The aim of this study is to reveal ultrasonographic features, associated anomalies and genetic errors in posterior fossa anomalies. As secondary aim postnatal outcomes of the cases were reviewed.

Methods: We conducted a retrospective case series from 2018 to 2024 involving fetuses with posterior fossa anomalies (PFA).

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Atrial septal defect is diagnosed in 1 per 1500 live births. It is classified into four subtypes according to the location. We present the prenatal diagnosis of a fetal sinus venosus type atrial septal defect (SV-ASD), which is very rarely diagnosed in the prenatal period.

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Objectives: The aim of this study was to describe the prenatal ultrasound findings of fetuses with skeletal dysplasia and to evaluate the genetic variations by molecular genetic analysis.

Methods: Between August 1, 2018 and March 1, 2023, we conducted a retrospective case series at a tertiary referral center involving patients with fetal skeletal abnormalities. For cases referred for a possible diagnosis of fetal skeletal dysplasia, an ultrasound database and prenatal genetic counseling records were first searched.

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Objective: To analyze the value of prenatal diagnostic genetic testing in cases with isolated aberrant right subclavian artery (ARSA).

Methods: This is a retrospective cohort study, conducted between January 2015-January 2022 in a fetal medicine center. Women who had an ultrasound scan and diagnosed with fetal ARSA were included.

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Introduction: The aim of this study was, first, to investigate the difference in fetal atrioventricular conduction in patients with and without intrahepatic cholestasis of pregnancy (ICP) by measuring the fetal PR interval; second, to evaluate the altering effect of ursodeoxycholic acid (UDCA) treatment on the fetal PR interval in ICP patients.

Methods: The study consisted of 42 ICP patients and 48 healthy pregnant women. Fetal echocardiography was performed to measure the mechanical PR interval.

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Objectives: To assess congenital fetal bradyarrhythmias with regard to etiological causes, features, risk factors, and prognosis.

Methods: This retrospective study involved fetuses with fetal bradyarrhythmias. All fetuses were evaluated by ultrasonography.

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Objective: To analyze the prenatal and postnatal outcomes of fetuses with d-TGA and to determine whether prenatal echocardiography may predict postnatal urgent BAS.

Study Design: A retrospective study of fetuses with d-TGA, for which fetal echocardiography was performed at our tertiary hospital from January 2018 to May 2023. We assessed the appearance of the septum primum and the FO flap in the four-chamber view as to whether the FO had a restrictive appearance during measurement of the diameter of the FO at its maximal angle to the attachment point.

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To estimate if there is an association between partial AVSD with chromosomal abnormalities, cardiac and extracardiac malformations, and to report the outcomes of prenatally diagnosed AVSD in a large, contemporary cohort. This is a retrospective cohort study of 190 prenatally diagnosed fetal AVSD between 2014 and 2023. Type of AVSD (complete vs partial), additional cardiac findings, extracardiac findings, presence of a heterotaxy, results of prenatal karyotype, and pregnancy outcomes were documented and analyzed.

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Purpose: Our aim in this study was to investigate the prenatal and postnatal prognosis of double outlet right ventricle (DORV) cases diagnosed prenatally by analyzing the outcomes based on the subtype.

Methods: This study is a retrospective chart review. Cases diagnosed with fetal DORV by prenatal ultrasound in the maternal-fetal medicine department of our hospital between 2014 and 2022 were included.

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Objectives: Right aortic arch (RAA) is a rare anomaly with an incidence of 0.1 % in the adult population and low-risk fetuses. Our aim in this study was to evaluate associated anomalies and conditions according to subtypes.

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This study aims to define the associated anomalies with PLSVC, and to compare single PLSVC and bilateral superior vena cava in terms of accompanying anomalies and pregnancy outcomes. This was a retrospective study of the fetuses diagnosed with single and/or bilateral SVC at a tertiary fetal medicine center during 8 years. We detected 16 cases of single PLSVC and 84 cases of bilateral SVC.

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