Thiol-Disulfide Homeostasis in Noise-Induced Hearing Loss in Rats.

Background: This study was designed to assess if thiol-disulfide homeostasis could be used as diagnostic biomarker in noise-induced hearing loss (NIHL) in a laboratory animal model.

Methods: The study was carried out with a total of 28 female albino rats in 4 groups: group 1 (control group) included rats that were not exposed to noise or any study treatment; in group 2, following noise exposure, rats received 2 mg of dexamethasone per kilogram of body weight via the intramuscular route for 5 days; in Group 3, rats were exposed to noise and received a saline solution for 5 days, in a volume (0.15 cc) matched to that of dexamethasone administered in group 2; and in group 4, rats were exposed to noise, and blood samples were collected during the early phase to assess thiol-disulfide homeostasis without administering any treatment.

A Rare Case of Childhood Malformations, Abernethy Syndrome: Literature Review and Presentation of Two Cases.

Abernethy syndrome is a rare congenital vascular anomaly. In this condition, blood from the portal system is diverted to the caval system through a portocaval shunt, entirely or partially bypassing the liver. Prevalence figures in the literature range from 1 per 30000 population up to 1 per 50000 population.

Progressive Familial Intrahepatic Cholestasis Associated With Ubiquitin-Specific Peptidase 53 Gene Variant Presented with Acute-on-Chronic Liver Failure in Turkish Siblings.

Progressive familial intrahepatic cholestasis represents a group of disorders characterized by defective bile excretion, which causes a multitude of clinical symptoms of variable severity and usually begins in childhood. During the past few decades, a number of gene sequence variants have been shown to be associated with progressive familial intrahepatic cholestasis, and new subtypes continue to be discovered. Sequence variants of the ubiquitinspecific peptidase 53 gene have previously been associated with a novel autosomal recessive form of cholestasis with coincident normal or low γ-glutamyl transferase, with mild phenotypes.

Overview of the Etiology, Pathology, and Prognosis of Giant Cell Hepatitis.

Objectives: Giant cell hepatitis is an important diagnostic consideration in early childhood, especially for patients who present with jaundice. Different diseases may play a role in their etiology. In this study, we presented pediatric patients in our center diagnosed with giant cell hepatitis.

Comparison of Total Endoscopic Ear Surgery and Microscopic Postauricular Canal-Wall-Down Approach on Primary Acquired Cholesteatoma.

This study aimed to compare total endoscopic ear surgery (TEES) and microscopic postauricular canal-wall-down tympanomastoidectomy (CWD) in cholesteatoma surgery in our clinic. This study included 59 patients, of whom 30 and 29 were operated on with CWD in 2016-2018 and TEES in 2019-2021, respectively and compared regarding intraoperative findings, hearing outcomes, long-term outcomes, and recidivism rates between groups. This study excluded patients in stage IV according to the European Academy of Otology and Neurotology/Japan Otological Society Staging System on Middle Ear Cholesteatoma, aged < 18, with congenital cholesteatoma, who underwent revision surgery.

Comparison of Conventional Technique with Suture Fixation and Subperiosteal Tight Pocket Technique on Revision Cochlear Implantation Rate.

Several fixation methods have been described to secure the cochlear implant's receiver/stimulator, but the optimal stabilization technique is still being debated. The aim of this study was to compare the conventional technique with suture fixation to the subperiosteal tight pocket technique in terms of revision cochlear implantation rate. A retrospective review was conducted on the medical records of 649 patients who underwent cochlear implantation.

Injectable Liposome-Loaded Hydrogel Formulations with Controlled Release of Curcumin and α-Tocopherol for Dental Tissue Engineering.

An injectable hydrogel formulation is developed utilizing low- and high-molecular-weight chitosan (LCH and HCH) incorporated with curcumin and α-tocopherol-loaded liposomes (Lip/Cur+Toc). Cur and Toc releases are delayed within the hydrogels. The injectability of hydrogels is proved via rheological analyses.

Diagnostic performance of multishot echo-planar imaging (RESOLVE) and non-echo-planar imaging (HASTE) diffusion-weighted imaging in cholesteatoma with an emphasis on signal intensity ratio measurement.

Purpose: To evaluate the diagnostic efficacy of multishot echo-planar imaging (EPI) [RESOLVE (RS)] and non-EPI (HASTE) diffusion-weighted imaging (DWI) in detecting cholesteatoma (CHO), and to explore the role of signal intensity (SI) ratio measurements in addressing diagnostic challenges.

Methods: We analyzed RS-EPI and non-EPI DWI images from 154 patients who had undergone microscopic middle ear surgery, with pathological confirmation of their diagnoses. Two radiologists, referred to as Reader A and Reader B, independently reviewed the images without prior knowledge of the outcomes.

A comparative analysis of neuroendoscopic foramen magnum decompression versus traditional open surgery for Chiari Malformation Type I.

Purpose: Chiari Malformation Type I (CM1) is characterized by the downward displacement of the cerebellar tonsils below the foramen magnum. The standard surgical treatment for CM1 is foramen magnum decompression and atlas laminectomy (FMD-AL). However, there is a growing interest in exploring minimally invasive techniques, such as neuroendoscopically assisted FMD-AL, to optimize surgical outcomes.

Neuroendoscopy-Assisted Minimal Invasive Management of Chiari 1 Malformation.

 The aim this study is to present the results of the minimal invasive neuroendoscopic-assisted system application as an alternative to traditional surgery in patients with Chiari malformation type 1 (CM type 1) with/without syringomyelia.  In the study, data of 22 symptomatic patients were prospectively collected. Before and after the operation, patient characteristics, computed tomography, magnetic resonance imaging (MRI), cerebrospinal fluid (CSF) flow dynamics MRI, and outcome scales scores were recorded.

Establishing Safe Surgical Parameters for Placement of C2 Pedicle Screws: A Retrospective Study.

Background:  The study aimed to evaluate the safety and feasibility of transpedicular instrumentation for the C2 vertebra and to establish the precise anatomical parameters and boundaries within which this procedure can be safely and effectively performed.

Methods:  This retrospective study analyzed 66 patients who underwent C2 transpedicular screw fixation. Preoperative and postoperative axial, sagittal, and coronal computed tomography (CT) scans were examined.

A rare cause and an even rarer treatment of hypertension in a 5-year-old boy: Mid-aortic syndrome.

Renal artery stenosis is one of the common vascular diseases that cause hypertension in children. However, renal artery aneurysms and abdominal aortic aneurysms, which may be components of mid-aortic syndrome, are rarely associated with renal artery stenosis. Despite its rarity, early diagnosis and treatment are critical to prevent fatal complications.

The Relationship Between Auditory Performances and Satisfaction of Unilateral Bone-Anchored Hearing in Conductive and Mixed Hearing Loss.

Background: The aim of this study is to investigate the deviced and non-deviced auditory performance results of patients with unilateral bone-anchored hearing aid.

Methods: Deviced and non-deviced free field hearing thresholds, speech discrimination, and sentence discrimination scores were evaluated. Shortened profile of the benefit from the hearing instrument (Abbreviated Profile of Hearing Aid Benefit) was used.

Portal Hypertension in Children: A Tertiary Center Experience in Turkey.

Purpose: Portal hypertension (PH) and its complications have a significant impact on morbidity and mortality. This study aimed to evaluate the etiology; clinical, laboratory, and endoscopic findings; treatment approaches; long-term outcomes; and prognosis of pediatric PH.

Methods: This retrospective study included 222 pediatric patients diagnosed with PH between 1998 and 2016, and data encompassing clinical, laboratory, and radiological features; treatments; and complications were analyzed.

Electrocardiographic measurements in children with pre-dialysis chronic kidney disease and undergoing kidney replacement therapy.

Cardiovascular diseases are the main causes of morbidity in children with chronic kidney disease (CKD). Electrocardiography (ECG) can provide important information about cardiac functions and parameters associated with sudden cardiac death. This study aims to evaluate the potentially dangerous changes in CKD and kidney replacement therapies by ECG and to determine the value of ECG in predicting cardiovascular outcome compared with echocardiography.

Total Transcanal Endoscopic Ear Surgery for Cholesteatoma.

Objective: This study aimed to evaluate the outcomes of total transcanal endoscopic cholesteatoma surgery.

Methods: Twenty-seven cholesteatoma patients that had undergone transcanal endoscopic ear surgery (TEES) were included in the study. Age, sex, operation date of patients, operated side, need for ossiculoplasty, graft material, and surgical technique were recorded.

Comparison of the Particulate Steroids, Betamethasone and Methylprednisolone, in Caudal Steroid Injection Under Ultrasound Guidance.

Background: Pain relief in lumbar disc hernias is a challenging condition. This study retrospectively compared particulate steroids, methylprednisolone acetate (mid-term effective), against betamethasone acetate (long-term effective) on ultrasound-guided caudal epidural injection for lumbar disc herniation.

Methods: A total of 40 patients with L4-5 and/or L5-S1 disc herniation were treated with ultrasound-guided caudal epidural injection between September 2021 and June 2022.

Evaluation of Sexual Function in Patients with Lower Lumbar Disc Herniation: A Comparison of Pre- and Postoperative Status.

Background:  Neuroregulation of sexual functions requires coordination of parasympathetic, sympathetic, and somatosensory neuronal pathways. The nerves formed by the lower lumbar plexus provide the innervation of the urogenital organs. Lower lumbar disc hernias (LDHs) might impair the neuroregulation of sexual functions by compressing the neural structures.

Cerebrospinal Fluid Gusher in Cochlear Implantation and Its Association with Inner-Ear Malformations.

Background: It is aimed to investigate the incidence of cerebrospinal fluid gusher in cochlear implantation and the association between cerebrospinal fluid gusher and inner-ear malformations in adult and pediatric patients.

Methods: A retrospective case review of 1025 primary cochlear implantation procedures was performed. Patients with inner-ear malformation or cerebrospinal fluid gusher during primary cochlear implantation were included and divided into 2 groups according to age: pediatric and adult groups.

Accuracy of Axis Drill Guides in the Cases of Atlantoaxial Instabilities Associated With High-Riding Vertebral Arteries, Narrow Pedicles, and Complex Deformities: Comparison of 3 Fixation Methods.

Objective: To contrast the accuracy of C2 navigation template-assisted versus freehand pedicle and/or pars screw fixation in high-risk cases where a high-riding vertebral artery (VA) or narrow pedicle and complex deformities were associated.

Methods: In our hospital, computed tomography (CT) data of 30 patients with pathology on C, who had risk factors for VA injury, that were complex cervical deformities, atlantoaxial instabilities with narrow C2 pedicle and/or HRVA variations were retrospectively reviewed. Using computer-aided design software and desktop printer we printed 3 sets of high cervical models per case.

Maternal Serum and Fetal Cord Blood Concentrations of Thiol/ Disulfide and Ischemia-Modified Albumin as Predictors of Neural Tube Defects.

Aim: To investigate the predictive role of thiol/ disulfide homeostasis and Ischemia-modified albumin (IMA) levels for NTDs.

Material And Methods: A total of 71 pregnant women (31 with NTD and 42 healthy controls) were enrolled in this study. This prospective case-control study included pregnant women with NTDs as the study group and randomly selected age-matched pregnant women with healthy fetuses as the control group.