ELİF ÖZALKAYA

Dr. ELİF ÖZALKAYA


Research Focus & Metrics

Academic Career Length

15Years (2012-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 January 2018 in Nigerian Journal of Clinical Practice
Verified
Journal Article
Open access
EÖELİF ÖZALKAYA
ELİF ÖZALKAYA
ZAZ Aslandoğdu
Z Aslandoğdu
AÖA Özkoral
A Özkoral
STSevilay Topcuoglu
Sevilay Topcuoglu
GKG Karatekin
G Karatekin
Thers, and weight gain of preterm babies. Materials and Methods: We enrolled mothers and their babies who were less than 37 gestational week and less than 2000 g, fed with orogastric tube without any contraindication of enteral feeding in neonatal intensive care unit between November 2010 and June 2011. The mothers of treatment group (n = 32) were consuming commercially available herbal mixture tea for 1 week. The mothers control group (n = 21) received only the same advice on supportive measures as group I. Mothers in the placebo group (n = 32) were given fruit tea for 1 week. The daily breast milk production of mothers and weight gain of preterm babies were recorded. Also, serum prolactin levels of the mothers were measured. Results: Increase of the milk production from the first to the seventh day was more prominent in mothers using herbal tea mixture. Increased rate in the amount of milk was 80% in the treatment, 34.3% in the placebo and 30% in the control group (P = 0.000). There was no statistically significant difference in weight gain of babies between the two groups, due to formula feeding in case of insufficient breast milk. Serum prolactin levels of the mothers at the beginning and on the seventh day showed no significant difference. Conclusions: In mothers with premature babies and who are treated in neonatal intensive care unit, consumption of galactogogue herbal tea will increase lactation and prevent lack of human milk without any adverse effect....

2 April 2015 in The Journal of Maternal-Fetal & Neonatal Medicine
Verified
Journal Article
Closed access
PDF file
EÖELİF ÖZALKAYA
ELİF ÖZALKAYA
AAArzu Akdağ
Arzu Akdağ
IŞIsmail Şen
Ismail Şen
ECErol Cömert
Erol Cömert
HYHamide Melek Yaren
Hamide Melek Yaren
Objective: In this study, pulse oximetry screening results in the early diagnosis of critical congenital heart diseases (CCHD) will be evaluated. Methods: Eight-thousand two-hundred and eight of 10 200 newborns born between January 2014 and December 2014 were screened using pulse oximetry for the diagnosis of CCHD. Screening test was considered to be positive in the newborns whose saturation after 24 h from the birth with pulse oximetry was ≤95% and/or in the newborns who had a difference of ≥3% between the lower and right upper extremity. Results: Incidence of CCHD was 1 per 1000 live births. Coarctation of the aorta was the most commonly determined CCHD. Sensitivity, specificity, false negative rate and false positive rate of pulse oximetry in the diagnosis of CCHD were 60%, 99.8%, 40% and 0.12%, respectively. Seventy-five percent of the newborns who had a false negative diagnosis with pulse oximetry had coarctation of the aorta. Coarctation of the aorta was determined at a rate of 20% using CCHD screening. Conclusions: The diagnosis of coarctation of the aorta is missed in the newborns screened with pulse oximetry in the first 24–48 h after birth. Screening with pulse oximetry should be repeated for early diagnosis of coarctation of the aorta.

28 April 2016 in Pediatrics International
Verified
Journal Article
Closed access
PDF file
EÖELİF ÖZALKAYA
ELİF ÖZALKAYA
GKGüner Karatekin
Güner Karatekin
STSevilay Topcuoglu
Sevilay Topcuoglu
TGTuğba Gürsoy
Tuğba Gürsoy
FOFahri Ovalı
Fahri Ovalı

7 April 2024 in Healthcare
Verified
Journal Article
Open access
PDF file
HTHandan Hakyemez Toptan
Handan Hakyemez Toptan
NKNazmiye Nilgün Karadağ
Nazmiye Nilgün Karadağ
STSevilay Topcuoglu
Sevilay Topcuoglu
EÖELİF ÖZALKAYA
ELİF ÖZALKAYA
EDEmre Dincer
Emre Dincer
GKGuner Karatekin
Guner Karatekin
Objectives and Aim: The primary aim of this study was to conduct a comparative analysis of the safety and efficacy of levetiracetam (LEV) and phenobarbital (PB) as first-line treatments for neonatal seizure management. This study was designed to measure and compare the incidence of adverse effects and to determine the discharge and mortality rates associated with the use of these antiseizure medications (ASMs). Through this comparison, this research sought to provide insights to optimise care for neonates experiencing seizures. Materials and Methods: This retrospective cohort study evaluated 104 neonates treated for seizures at Zeynep Kamil Hospital from 2015 to 2020 after excluding those on non-PB/LEV antiseizure medications. Seizures were characterised using electroencephalogram (EEG) and categorised according to aetiology and frequency. Treatment efficacy was gauged by seizure cessation, as confirmed using EEG. Adverse effects and demographic data were recorded. Statistical analyses were conducted using SPSS, employing the Shapiro–Wilk, independent t-test, Mann–Whitney U test, and chi-square test, with a significance threshold of p < 0.05. Results: Overall, 104 neonates treated with first-line ASM were evaluated for efficacy; PB was administered in 68.26% of the cases, while LEV was utilised in 31.74%. The total complete response rate was 40.38%, with no significant difference between the PB and LEV groups (p = 0.309). The incidence rate ratios (IRRs) demonstrated that seizure frequency profoundly influenced treatment effectiveness, with IRRs of 2.09 for rare seizures, 3.25 for frequent seizures, and 4.01 for status epilepticus, indicating a higher treatment response rate with increasing seizure frequency. For second-line treatment, among a subset of 62 patients, PB had a slight, non-significant advantage over LEV, with an odds ratio of 1.09, suggesting a marginally better response to LEV. Adverse events were significantly more frequent in the PB group, affecting 19 of 67 neonates (28.36%), compared to only 2 of 71 neonates (2.82%) in the LEV group (p < 0.001). No significant difference was observed in the discharge rates between the two groups (PB, 67.61%; LEV, 75.76%; p = 0.674). Interestingly, the mortality rate was significantly higher in the LEV group (45.45%) than that in the PB group (22.54%; p = 0.045). Conclusion: This study underscores LEV’s superior safety profile over PB in neonatal seizure management, evidenced by a significantly lower rate of adverse events. PB seems to be more effective in the second-line treatment of neonatal seizures. Despite the lack of significant differences in the discharge rates, the higher mortality rate associated with LEV warrants further investigation. These findings advocate the cautious selection of antiepileptic drugs in neonatal care, with a preference for LEV based on its safety profile.

1 October 2017 in Pediatrics & Neonatology
Verified
Journal Article
Open access
EÖELİF ÖZALKAYA
ELİF ÖZALKAYA
GKGüner Karatekin
Güner Karatekin
STSevilay Topcuoglu
Sevilay Topcuoglu
HKHande Özgün Karatepe
Hande Özgün Karatepe
THTaner Hafızoğlu
Taner Hafızoğlu
FOFahri Ovalı
Fahri Ovalı
High pro-oxidant capacity was found in PPROM and low antioxidant capacity in PPROM and FIRS.

28 October 2022 in Children
Verified
Journal Article
Open access
PDF file
STSevilay Topcuoglu
Sevilay Topcuoglu
SDSalih Demirhan
Salih Demirhan
EDEmre Dincer
Emre Dincer
EÖELİF ÖZALKAYA
ELİF ÖZALKAYA
GKGuner Karatekin
Guner Karatekin
Background: The pathogen distribution and antibiotic susceptibility of the pathogens in early-onset sepsis (EOS) differ between countries. The epidemiological data from a limited number of studies about EOS in Turkey are insufficient. In this study, we aimed to evaluate the culture-proven EOS cases, causative microorganisms, antibiotic susceptibility patterns, and risk factors for mortality in EOS. Methods: This is a retrospective, single-center study over a 7-year period, from 2013 to 2020, at Zeynep Kamil Maternity and Children’s Hospital, İstanbul, Turkey. Results: During the study period, 8229 newborns were admitted to our neonatal intensive care unit. Culture-proven EOS was detected in 101 patients (0.12%). Out of these, 56 (55.4%) were Gram-positive, and 45 (44.5%) were Gram-negative sepsis. The most common isolated organism was E. coli (28.7%, n = 29), followed by GBS (16.8%, n = 17) and S. aureus (15.8%, n = 16). An ampicillin and gentamicin combination had antimicrobial coverage in 92.6% of cases. Seventeen patients (16.8%) died because of EOS. Severe neutropenia was found to be an independent risk factor for mortality in EOS (p = 0.001, OR = 14.4, CI 95%: 2.8–74). Conclusions: Although the majority of causative agents were Gram-positive (55.4%), the most common isolated organism was E. coli. An empirical antibiotic regimen of ampicillin and gentamicin continues to have an adequate coverage for EOS in our population.