Publications by authors named "Ahmet Bas"

Background: This study aimed to evaluate the safety and efficacy of intranodal lymphangiography (IL) for the treatment of postoperative chyle leakage (CL), chylothorax, and chylous ascites.

Methods: Between April 2018 and July 2022, eight patients who underwent IL for CL following thyroid and thoraco-abdominal surgeries were included in this retrospective study. Among these eight patients, six underwent bilateral total thyroidectomy, one underwent lobectomy of the lung, and one underwent total abdominal hysterectomy with bilateral salpingo-oophorectomy.

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Background: This study evaluates the safety and effectiveness of coil embolization of the superior rectal artery for both emergency and elective treatment of rectal bleeding caused by Goligher grade 4 hemorrhoids, where surgery is contraindicated.

Methods: Between 2019 and 2024, 18 patients (11 males, 7 females) with a mean age of 65±10.3 years were included in the study.

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Article Synopsis
  • * The study analyzed 150 patients who underwent laparoscopic appendectomy to compare the effectiveness and safety of three stump closure methods: endoloop, Hem-o-lok clips, and endostaplers.
  • * Results showed that 96% of patients experienced no major complications, while the remaining 4% had issues, indicating that all three closure methods can be effective, though more research is needed on the best approach.
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Background: Myocardial fibrosis is often detected in patients with hypertrophic cardiomyopathy (HCM), which causes left ventricular (LV) dysfunction and tachyarrhythmias.

Purpose: To evaluate the potential value of a machine learning (ML) approach that uses radiomic features from late gadolinium enhancement (LGE) and cine images for the prediction of ventricular tachyarrhythmia (VT) in patients with HCM.

Material And Methods: Hyperenhancing areas of LV myocardium on LGE images were manually segmented, and the segmentation was propagated to corresponding areas on cine images.

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Rationale And Objectives: To differentiate early-onset schizophrenia (EOS) from early-onset bipolar disorder (EBD) using surface-based morphometry measurements and brain volumes using machine learning (ML) algorithms.

Method: High-resolution T-weighted images were obtained to measure cortical thickness (CT), gyrification, gyrification index (GI), sulcal depth (SD), fractal dimension (FD), and brain volumes. After the feature selection step, ML classifiers were applied for each feature set and the combination of them.

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Objective:  Ocular hemorrhages (OHs) may cause visual disturbances and incidence vary from 18 to 39% in newborns. Precipitated/instrumental delivery and perinatal asphyxia were predefined risk factors. Acidosis can interfere with coagulation and disrupt the pressure of ocular capillaries and put infants with moderate acidosis with or without hypoxic-ischemic encephalopathy at risk for OH.

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Background: Transcutaneous bilirubin (TCB) measurement is a simple, painless, and time-saving alternative for the assessment of TSB (total serum bilirubin) levels. However, TCB measurements obtained during phototherapy can yield inaccurate results. We evaluated the effectiveness of TCB measurements obtained from protected skin areas in patients who underwent phototherapy.

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Aim: Preterm neonates are exposed to many painful procedures in neonatal intensive care units. This study aims to evaluate the effect of oscillometric blood pressure (BP) measurement on pain response in preterm infants.

Methods: This prospective study was performed over 4 months in a level III neonatal intensive care unit.

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Article Synopsis
  • Abdominal aortic aneurysms (AAA) are uncommon in Behçet syndrome, but they can lead to serious complications and are typically treated with surgery and immunosuppressive therapy.
  • A case study of a female patient who developed a large saccular aneurysm after her Behçet syndrome diagnosis shows that surgery was not an option for her, so she only received immunosuppressive treatment.
  • Remarkably, after two years, the aneurysm size decreased, with signs of wall calcification and no rupture over a 20-year follow-up, suggesting that some large, calcified AAAs may not require surgery and can be monitored safely.
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Background: Advances in neonatal care have led to increased survival of extremely preterm infants. Extremely low-birth-weight (ELBW) infants, defined as infants weighing less than 1000 g at birth, constitute a significant portion of neonatal intensive care unit (NICU) patients. The aim of this study is to determine the mortality and short-term morbidities of ELBW infants and assess the risk factors related to mortality.

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Objective: The aim of this study was to compare the accuracy rate of liver stiffness calculated by shear wave elastography with liver biopsy results in obese and overweight children.

Materials And Methods: Obese and overweight children between 3 and 18 years of age, who had hepatic steatosis and a healthy control group were included in this study. A blood sample was obtained for laboratory tests and shear wave elastography was performed for all subjects.

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Introduction: Infants with perinatal asphyxia are at risk for organ failure aside from the brain, regardless of the severity of the asphyxial insult. We aimed to evaluate the presence of organ dysfunction other than the brain in newborns with moderate to severe acidosis at birth, in the absence of moderate to severe hypoxic ischemic encephalopathy.

Materials And Methods: Data of 2 years were retrospectively recorded.

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Objective: This study aimed to evaluate the clinical characteristics of the neonates who fell in the maternity ward and identify the incidence of near miss events during the immediate postpartum period.

Study Design: The study consisted of two steps. The retrospective part included the evaluation of admissions due to the in-hospital newborn fall for 6 years.

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Objective: To investigate the effectiveness of the different imaging modalities in detecting recurrence in breast cancer follow-up.

Materials And Methods: Sixty-four women with recurrent breast cancer were examined between January 2020 and July 2022. Recurrency was divided into four categories: local; regional; second primary; and distant metastasis.

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Background: The aim of this study is to investigate the TyG index and TG/HDL-C ratio and their relationships with insulin resistance in LGA infants.

Methods: A prospective controlled study was conducted including 65 LGA and gestational age, gender-matched appropriate for gestational age (AGA) neonates. Serum TG, total cholesterol (TC), high-density lipoprotein-cholesterol (HDL-C), insulin and glucose levels were measured within two hours after birth, TyG index and HOMA-IR values were calculated.

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The aim of the study is to prepare embolic hydroxyl ethyl cellulose (HEC)-polyvinyl prolidone (PVP)-magnetic particles suitable for transcatheter arterial chemoembolization (TACE) procedures, drug delivery, and magnetic hyperthermia. Two different sizes (microsized and nanosized) of iron oxide particles were used to prepare the embolic particles to investigate the embolization and drug delivery properties. Iron oxides were linked with PVP via bridging flocculation process, then outermost layer of the linked particles was coated with HEC in order to load drugs to particles and reach size requirements for a successful TACE procedure.

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Several studies on vaccines and medicines against virus-based illnesses (COVID-19, SARS, MERS) are being conducted worldwide. However, virus mutation is an issue. Therefore, inactivation and disinfection of viruses are crucial.

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Objectives: Investigate long-term effects of repeated transarterial chemoembolization (TACE) on portal venous pressure (PVP) using non-invasive surrogate markers of portal hypertension.

Methods: Retrospective, Institutional Review Board-approved study. 99 patients [hepatocellular carcinoma (HCC) group (n=57); liver metastasis group (n=42)] who underwent 279TACEs and had longitudinal pre-/post-therapy contrast-enhanced-MRI (n=388) and complete blood work were included.

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Papillorenal syndrome, also known as renal coloboma syndrome, is characterised by congenital optic disc anomalies and renal abnormalities. Mutations in the PAX2 gene, which plays a critical role in embryogenesis, cause this syndrome. Other related anomalies are less commonly observed.

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Aim: The aim of this study is to determine the incidence of metabolic bone disease (MBD) and assess the risk factors for development radiologic evidence of MBD.

Methods: Preterm infants with gestational age ≤32 weeks and birth weight ≤1500 g were included in this prospective study. Metabolic bone disease was defined as hypophosphatemia (phosphorus levels <4 mg/dl), ALP levels >450 U/L, or radiologic findings of MBD at four weeks of age.

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Objective: The average time for umbilical cord separation in term neonates is 7 to 10 days. Prematurity, phototherapy, prolonged duration of antibiotic treatment, and parenteral nutrition are other factors which were demonstrated to delay cord separation. In the previous studies including greater premature infants, the time of separation of the umbilical cord was shown to vary 2 to 3 weeks.

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Aim: Bevacizumab may affect preterm infants' ongoing organogenesis with its antiangiogenic effects. We aimed to compare neurodevelopmental outcomes (NDO) of preterm infants treated for retinopathy of prematurity (ROP) with laser photocoagulation (LP), intravitreal bevacizumab (IVB) or both treatments, and to find out the effects of IVB on NDO.

Methods: Medical records of preterm infants with ROP treatment and evaluation for NDO were retrospectively collected between 1 January 2017 and 31 June 2019.

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In this study, we aimed to compare the clinical outcomes of Premature Preterm Rupture of Membranes (PPROM) cases diagnosed by classical speculum examination and by placental alpha microglobulin-1 protein (PAMG-1) assay. The medical records of all patients with singleton pregnancies that were diagnosed with PPROM were retrospectively reviewed. Singleton pregnancies with PPROM diagnosis that was confirmed either by direct visualisation of amniotic fluid leaking through the cervix or by placental alpha microglobulin-1 protein (PAMG-1) assay if no amniotic fluid leakage was documented were included in the study.

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Due to immaturity of immune function and the possibility of mother-fetal vertical and aerosol transmissions, neonates are particularly susceptible to the new coronavirus (SARS-CoV-2). Perinatal-neonatal departments should cooperate closely and take integrated approaches, and neonatal intensive care units (NICU) should prepare emergency plans for the coronavirus disease 2019 (COVID-19) as far as possible, so as to ensure the optimal management and treatment of potential victims. During the epidemic of COVID-19, the emergency response plan for the NICU should be based on the actual situation, including diagnosis, isolation, and treatment, as well as available equipment and staffing, and take into account the psychosocial needs of the families and neonatal care staff.

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