Publications by authors named "Karaman A"

Limited advancements in managing malignant brain tumors have resulted in poor prognoses for glioblastoma (GBM) patients. Standard treatment involves surgery, radiotherapy, and chemotherapy, which lack specificity and damage healthy brain tissue. Boron-containing compounds, such as boric acid (BA), exhibit diverse biological effects, including anticancer properties.

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Objective: The present study aims to investigate potential differences in cerebral blood flow between children with Cognitive Disengagement Syndrome (CDS) and those with Attention Deficit Hyperactivity Disorder (ADHD) using Doppler ultrasound.

Methods: In this single-center prospective study, we included 24 cases in the ADHD group with CDS symptoms, 29 cases in the ADHD group without CDS symptoms and, 26 children in the healthy controls. The children ranged in age from 6 to 15.

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Purpose: Delays in the diagnosis and treatment of infantile hypertrophic pyloric stenosis (IHPS) may lead to laboratory and clinical decompensation in infants. The aim of this study was to determine whether pyloric measurement parameters can be effectively used in the clinical prognosis of IHPS by evaluating the relationship between pyloric dimensions on ultrasonographic evaluation at the time of presentation and clinical and laboratory parameters in infants with pyloric stenosis.

Methods: A retrospective observational study was conducted on 122 infants who were followed up with the diagnosis of IHPS in our neonatal clinic and operated on by a pediatric surgeon between January 2005 and December 2020.

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Background: Flow-related signal void artifacts can be visualized on the T2-weighted (T2W) three-dimensional sampling perfection with application-optimized contrast (3D-SPACE) sequence. Flow void artifacts in the cerebral aqueduct and the fourth ventricle can provide information about cerebrospinal fluid (CSF) flow dynamics.

Purpose: In this study, we aimed to test the performance of the T2W 3D-SPACE sequence in assessing the CSF flow in the aqueduct and/or fourth ventricle.

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Magnetic nanoparticles (MNPs) are produced for both diagnosis and treatment due to their simultaneous availability in magnetic resonance imaging (MRI) and magnetic hyperthermia (MHT). Extensive investigations focus on developing MNPs for individual MHT or MRI applications, but the development of MNPs for theragnostic applications has received very little attention. In this study, through efficient examination of synthesis conditions such as metal precursors, reaction parameters, and solvent choices, we aimed to optimize MNP production for effective utilization for MHT and MRI simultaneously.

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Background: The most common indication for cholecystectomy in children is cholelithiasis, and routine histopathological examination is performed on all gallbladder specimens. Currently, selective histopathological examination is suggested instead of routine examination due to the low frequency of gallbladder cancer in adults. The purpose of this study was to evaluate the indications, clinical, laboratory and histopathological findings of the cholecystectomy in children.

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Article Synopsis
  • The study investigates the role of genetic factors in infantile hypertrophic pyloric stenosis and its associated rare diseases.
  • It involves a retrospective analysis of neonates from 2000 to 2022 who underwent surgery for this condition and had additional health complications.
  • The findings indicate that 9.8% of these patients had a rare disease, emphasizing the need for early diagnosis and treatment to improve health outcomes.
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Pulmonary mucous gland adenomas (MGAs) originating in mucous-secreting cells in the bronchi are extremely rare benign tumours. Pulmonary chondroid hamartomas (PCHs) are the most common benign neoplasms of mesenchymal origin of the lung. This study reports an unusual case where MGA and PCH coexisted in a peripheral intra-parenchymal location.

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Introduction: The postpubertal effects of testis-sparing surgery on prepubertal testicular tumors are not fully understood.

Objective: In this study, we aimed to evaluate the effect of different durations of warm and cold ischemia during a rat prepubertal testis-sparing surgery model on the ischemic and contralateral normal testes in the postpubertal period.

Study Design: The study encompassed a group of 54 male rats in the prepubertal stage who were then arranged to be put into nine groups: sham (Sh), control-cold (Cc), control-biopsy (Cb), 30, 60 or 90min warm ischemia (WIb,WIb,WIb) and cold ischemia (CIb,CIb,CIb).

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Purpose: Surgical patients frequently experience symptoms such as preoperative anxiety, postoperative pain, and nausea and vomiting. The aim of this study was to determine the effects of acupressure on preoperative anxiety, postoperative pain, and nausea and vomiting in otolaryngology patients.

Design: The study was designed as a prospective, assessor-blinded, parallel, 2-armed (1:1), randomized controlled trial.

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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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Objective: To evaluate the clinical characteristics and treatment outcomes of patients with chronic pulmonary aspergillosis (CPA) and to determine risk factors for disease recurrence.

Methods: A total of 43 patients with CPA (mean ± SD age: 61.4 ± 10.

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Article Synopsis
  • Gadolinium deposition in rat kidneys was studied following single and multiple doses, aiming to see how long it lasts and if there's a link between deposition levels and T1-weighted image intensity.
  • The study involved 70 rats divided into groups receiving varying doses, with assessments made at different time points using imaging and mass spectrometry.
  • Results showed more injections led to higher gadolinium levels, but there was little difference between low and medium doses, and T1 intensity measurement was found to be unreliable for gauging deposition.
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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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Objective: Thyroidectomy is a relatively uncommon procedure in pediatric patients. We aimed to review our 20-year experience of thyroid surgery.

Methods: A total of 39 patients who underwent thyroid surgery from 2003 to 2023 were retrospectively evaluated.

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Uncovering the full list of human ciliary genes holds enormous promise for the diagnosis of cilia-related human diseases, collectively known as ciliopathies. Currently, genetic diagnoses of many ciliopathies remain incomplete (1-3). While various independent approaches theoretically have the potential to reveal the entire list of ciliary genes, approximately 30% of the genes on the ciliary gene list still stand as ciliary candidates (4,5).

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Article Synopsis
  • Anastomotic stricture (AS) is a common complication after esophageal atresia (EA) repair, and a study was conducted using data from the Turkish Esophageal Atresia Registry to identify risk factors for its development.
  • The research included 713 patients from 2015 to 2021, finding that 20.19% developed AS, with significant factors like being a term baby, having a birth weight over 2,500g, experiencing gastroesophageal reflux (GER), and having a recurrent tracheoesophageal fistula (TEF).
  • The study concluded that these risk factors are critical for understanding AS development in EA patients, particularly within their first year of life, and emphasized the importance of
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Background: Differential diagnosis of hypothalamic-optic chiasmatic gliomas (HOCGs) and craniopharyngiomas on magnetic resonance imaging (MRI) can be quite challenging.

Purpose: To compare the MRI features of HOCGs and cranipharyngiomas.

Material And Methods: Patients diagnosed with HOCG or craniopharyngioma in histopathological evaluation between 2012 and 2022 and who underwent preoperative contrast-enhanced brain MRI were included.

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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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Background: Despite being a common condition in puberty, only 5-10% of pubertal gynecomastia need surgical treatment. Here the authors present their experiences with infra-areolar subcutaneous mastectomy in the surgical treatment of adolescent gynecomastia.

Methods: The records of patients who underwent infra-areolar subcutaneous mastectomy for adolescent gynecomastia between January 2004 and December 2021 were reviewed retrospectively.

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Objectives: To estimate factors affecting survival in prenatally diagnosed omphalocele, factors predicting genetic abnormalities, and association of omphalocele and specific groups of anomalies.

Methods: A retrospective observational study was performed, analyzing data of all omphalocele cases diagnosed prenatally in the perinatology clinic of a referral center. Demographic data, characteristics of the omphalocele (size, content, associated anomalies), results of genetic testing, pregnancy outcomes and postnatal outcomes were analyzed.

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