Acar Koç

ORCID: 0000-0003-2482-7478
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About
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Research Areas
  • Prenatal Screening and Diagnostics
  • Congenital Anomalies and Fetal Surgery
  • Assisted Reproductive Technology and Twin Pregnancy
  • Pregnancy-related medical research
  • Maternal and Perinatal Health Interventions
  • COVID-19 Impact on Reproduction
  • Fetal and Pediatric Neurological Disorders
  • Pregnancy and preeclampsia studies
  • Urological Disorders and Treatments
  • Neonatal Respiratory Health Research
  • Congenital Heart Disease Studies
  • COVID-19 and healthcare impacts
  • Birth, Development, and Health
  • Pediatric Urology and Nephrology Studies
  • Congenital Diaphragmatic Hernia Studies
  • Vaccine Coverage and Hesitancy
  • Parvovirus B19 Infection Studies
  • Ectopic Pregnancy Diagnosis and Management
  • Maternal and fetal healthcare
  • Tracheal and airway disorders
  • Pelvic floor disorders treatments
  • Neonatal and fetal brain pathology
  • Mesenchymal stem cell research
  • Congenital limb and hand anomalies
  • Ethics and Legal Issues in Pediatric Healthcare

Ankara University
2016-2025

University of Health Sciences Antigua
2024

Sağlık Bilimleri Üniversitesi
2024

Koç University
2021

Sakarya University
2016

Erciyes University
2006

ABSTRACT Imaging modalities play a crucial role in the management of suspected COVID‐19 patients . Before reverse transcription polymerase chain reaction (RT‐PCR) test results are positive, 60–93% have positive chest computed tomographic (CT) findings consistent with COVID‐19. We report case lung ultrasound woman an initially negative RT‐PCR result. The ultrasound‐imaging were present between and subsequent tests correlated CT findings. point‐of‐care lung‐ultrasound examination was easy to...

10.1002/uog.22034 article EN Ultrasound in Obstetrics and Gynecology 2020-04-06

Objective: To assess the effects of ultrasonographically detected subchorionic hematomas on pregnancy outcomes in patients with vaginal bleeding within first half pregnancy. Material and Methods:Patients diagnosed threatened abortion due to painless who were followed up an inpatient service during between January 2009 December 2010 included this retrospective cohort study.Patients divided into two groups according presence hematoma.Miscarriage rates ongoing pregnancies compared...

10.5152/jtgga.2014.14170 article EN Journal of the Turkish-German Gynecological Association 2014-12-23

To evaluate whether routine vaginal examination during labor is associated with increased levels of anxiety and pain compared transperineal ultrasound assessment.This was a single-blinded, parallel, randomized controlled trial conducted in tertiary care facility. Parous pregnant women without known psychiatric condition who were seen at the facility between November 2015 March 2016 included trial. Participants had an uneventful pregnancy assigned randomly to digital or assessment labor....

10.1002/uog.15994 article EN Ultrasound in Obstetrics and Gynecology 2016-06-14

Perlman syndrome is an extremely rare characterized by polyhydramnios, fetal overgrowth, facial dysmorphism and visceromegaly, inherited in autosomal recessive fashion. We here report a male infant born to consanguineous parents with prenatal history of ascites, nephromegaly, corpus callosum agenesis choroid plexus cysts, presented hepatomegaly, cholestasis, cardiomegaly, cryptorchidism, respiratory distress, hypoglycemia, generalized muscle hypotonia after birth, died due progressive...

10.38136/jgon.1144213 article EN Jinekoloji-Obstetrik ve Neonatoloji Tıp Dergisi 2025-03-22

To compare ultrasound measurements and clinical assessments of cervical dilatation, fetal head station position.Prospective, observational study.Tertiary care center (Ankara University Hospital), labor ward.Forty-three women in labor.Women were prospectively evaluated through simultaneous examinations (79 total). Dilatation, station, position recorded via digital examination whenever possible compared with ultrasonographic angle progression, head-perineum distance, by two independent...

10.1111/aogs.12649 article EN Acta Obstetricia Et Gynecologica Scandinavica 2015-04-04

Introduction: Many studies reported that prenatal exposure to lead and mercury are correlated with reduced birth weight size, these metals can cause adverse effects on neurodevelopment. In this study, it was aimed investigate compare the levels in maternal blood, cord placenta pregnant women IUGR fetuses diagnosed using abnormal Doppler findings healthy fetuses.
 Material: This study included 75 patients, comprising 41 group 34 control group. Maternal venous fetal blood placental...

10.30621/jbachs.1008609 article EN Journal of Basic and Clinical Health Sciences 2022-01-20

<b>Aim:</b> To investigate blood flow velocities in the ophthalmic and central retinal arteries (CRAs) patients with diabetic retinopathy before after atorvastatin treatment. <b>Methods:</b> 45 type 2 diabetes were included this double-blind, placebo-controlled study. The divided into three subgroups: group 1 (n = 15) non-proliferative (NPDR); had proliferative (PDR); 3 15; placebo group) 8 NPDR 7 PDR. groups (atorvastatin received 10 mg daily for weeks. Pre-treatment post-treatment serum...

10.1136/bjo.2006.098285 article EN British Journal of Ophthalmology 2006-09-14

Pregnant women are a risk group for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection, which has been shown to be associated with increased rates of preterm delivery and Cesarean section1. Despite reassuring safety profile, imaging modalities, such as computed tomography, used scarcely in pregnancies suspected SARS-CoV-2 infection due concerns about undue exposure the fetus ionizing radiation. However, false-positive false-negative results not uncommon reverse...

10.1002/uog.23099 article EN Ultrasound in Obstetrics and Gynecology 2020-09-27

Objective: Insufficient cytotrophoblast invasion to the myometrium is associated with preeclampsia, especially early-onset preeclampsia (before 34 gestational weeks). Several investigations have marked changes in concentration of cell free fetal DNA maternal circulation women preeclampsia. However, these studies were not performed for early or late subgroups individually. The present authors planned determine levels both and subgroup compare it normotensive control cohort. Materials Methods:...

10.12891/ceog1982.2015 article EN Clinical and Experimental Obstetrics & Gynecology 2015-12-10

Objective: To investigate maternal adverse effects and perinatal neonatal outcomes of women receiving coronavirus disease-2019 (COVID-19) vaccination during pregnancy. Material Methods:Seven hundred sixty pregnant who were followed up in obstetrics outpatients included this prospective cohort study.COVID-19 infection histories the patients recorded.Demographic data, including age, parity, presence systemic disease events following COVID-19 recorded.Vaccinated compared with unvaccinated terms...

10.4274/jtgga.galenos.2023.2022-9-10 article EN Journal of the Turkish-German Gynecological Association 2023-06-07

Cell-free fetal DNA has received significant attention for the purposes of prenatal genetic testing in past decade. Fetal is a new method and promising many applications such as aneuploidy screening, diagnosis, prediction preeclampsia more. A 37-year-old primigravida, with pregnancy conceived by intracytoplasmic sperm injection (ICSI), was offered non-invasive (NIPT) due to advanced maternal age. NIPT performed at 23 weeks’ gestation reported diagnosis monosomy X. She an amniocentesis, which...

10.1136/bcr-2014-207309 article EN BMJ Case Reports 2015-01-28

The umbilical cord blood contains a high concentration of stem cells. There is not any published study evaluating the amount cells that have potential to be transferred infant through placental transfusion methods as delayed clamping (DCC) and milking (UCM). aim this measure concentrations endothelial progenitor cell (EPC) CD34+ hematopoietic (HSC) in residual volume (PRBV), evaluate delivery room adaptation cerebral oxygenation these infants. Infants with ≥36 gestational weeks were...

10.3389/fped.2022.838444 article EN cc-by Frontiers in Pediatrics 2022-04-04

To investigate the association of perinatal risk factors including delivery mode with mortality in very low birthweight (VLBW) a tertiary hospital setting.Medical records 241 live-born VLBW infants (≤1500 g) were retrospectively reviewed. Details maternal, obstetrical, and their associations infant evaluated.The overall rate was 23.2%. Mortality significantly higher for born at ≤27 gestational weeks ≤750 g (p = 0.000 p 0.000, respectively), showing steep decrease thereafter. On ROC analysis,...

10.3109/14767058.2014.953476 article EN The Journal of Maternal-Fetal & Neonatal Medicine 2014-08-21

The present study investigated maternal and neonatal outcomes in pregnant women who used obstetric lubricant gels during active labour. This prospective randomised controlled included 180 women. Women were randomly assigned to two groups the first-stage of Pregnant gel group received standard antepartum care plus vaginal application gel. control without Mean duration second stage labour was significantly shorter than (45 ± 34 min vs. 58 31 min, respectively; p = .005). APGAR values at 5...

10.1080/01443615.2017.1288711 article EN Journal of Obstetrics and Gynaecology 2017-03-21

Amaç: Bu çalışmada sezaryen için mutlak endikasyonu olmayan ikinci trimesterdeki nullipar gebelerin doğum tercihlerini sorgulayan bir anket uygulayarak kadınların bu konudaki

10.4274/tjod.46144 article TR Journal of Turkish Society of Obstetric and Gynecology 2016-09-30

SummaryWe evaluated the effect of closure or non-closure parietal and visceral peritoneum during caesarean section (CS) on post-caesarean pain analgesic requirement. A total 94 primigravidas planned for elective CS were prospectively enrolled into (n = 46) 48) groups. Analgesia was provided by a patient-controlled analgesia pump (PCA) postoperatively. Pain using visual analogue scale (VAS) verbal rating (VRS). Total dose analgesics administered through PCA times demand additional also...

10.3109/01443615.2011.560302 article EN Journal of Obstetrics and Gynaecology 2011-05-01

The aim of the study is to investigate relationship between changes in serotonin levels during pregnancy and fibromyalgia syndrome (FS) relationships FS physical/psychological state, biochemical hormonal parameters, which may be related musculoskeletal system.This a prospective case-control conducted with 277 pregnant women at obstetric unit Ankara University Faculty Medicine, period January June 2015. was determined based on presence or absence 2010 ACR diagnostic criteria all volunteers...

10.1080/14767058.2016.1243096 article EN The Journal of Maternal-Fetal & Neonatal Medicine 2016-10-04

10.1016/j.jfma.2011.09.009 article EN publisher-specific-oa Journal of the Formosan Medical Association 2011-10-21

ABSTRACT We report here a case of twin reversed arterial perfusion sequence with transposition great arteries in the pump twin. Color Doppler and fetal echocardiographic examination revealed an acardiac, anencephalic without upper limbs arteries. To our knowledge despite multiple anomalies reported acardiac twin, major anomalies, especially cardiac type are extremely rare not which maintains circulation. Management is directed at saving fetus; therefore, we believe that during sonographic...

10.1111/j.1741-4520.2005.00068.x article EN Congenital Anomalies 2005-05-18

"COVID-19 vaccine has no impact on the menstrual cycle." Journal of Obstetrics and Gynaecology, 42(7), pp. 3403–3404

10.1080/01443615.2022.2124853 article EN Journal of Obstetrics and Gynaecology 2022-09-25

"Congenital glioblastoma multiforme presented with intracranial bleeding: a case report." Journal of Obstetrics and Gynaecology, 39(3), pp. 427–428

10.1080/01443615.2018.1475470 article EN Journal of Obstetrics and Gynaecology 2018-09-18
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