Publications by authors named "Omer Bayır"

Article Synopsis
  • This study evaluates how demographic factors and comorbid conditions impact the prognosis and treatment of patients with laryngeal squamous cell cancer (LSCC) based on medical records from 2008 to 2019.
  • A total of 573 patients were analyzed, revealing that the majority were men and smokers, with significant survival rates indicating better outcomes for early-stage LSCC treated with endolaryngeal laser surgery (ELS) compared to radiotherapy.
  • It was concluded that ELS offers superior overall and disease-free survival rates for early-stage LSCC, while advanced cases showed better outcomes with total laryngectomy compared to chemoradiotherapy; recurrence risk was notably higher in certain categories of tumors.*
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Background: In the treatment of early stage laryngeal cancers, surgery (transoral laryngeal surgery (TOLS), open partial laryngeal surgery (OPLS) and radiotherapy (RT) are used.

Objectives: Compare the oncological results of patients with early stage laryngeal squamous cell carcinoma (LSCC) treated with TOLS or RT.

Design: Retrospective.

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Objective: The objective of the study is to compare the optic coherence tomography (OCT) parameters of the healthy and affected sides of patients with idiopathic sudden sensorineural hearing loss (ISSNHL) and to investigate the relationships between these and the improvement in hearing levels.

Methods: A bilateral eye evaluation of patients diagnosed with ISSNHL was performed with OCT. The ganglion cell complex (GCC) and retina nerve fiber layer (RNFL) thickness values were recorded and the differences between the two eyes were examined.

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Unlabelled: This research aims to examine the impact of programmed cell death 4 (PDCD4), microRNA-21 (miR-21) and microRNA-208a (miR-208a) transcripts, and protein levels on oral epithelial dysplasia (OED) development in oral squamous cell carcinoma (OSCC).

Methods: The research investigation involved the collection of saliva, blood, and tissue samples from a total of 20 patients diagnosed with OSCC, 15 patients diagnosed with OED, and 15 healthy individuals. PDCD4, miR-21, and miR-208a expression was performed by quantitative reverse transcription polymerase chain reaction (qRT-PCR).

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Article Synopsis
  • The article discusses a rare case of a 74-year-old man with diffuse follicular variant papillary thyroid carcinoma that metastasized to the pituitary gland, leading to complications like visual field defects and hormonal deficiencies.
  • Diagnosis and confirmation of the cancer involved imaging, cytological examination, and a total thyroidectomy, which revealed the nature of the tumor and its aggressive behavior.
  • Treatment included surgery for the pituitary mass, radioactive iodine therapy, and initiation of sorafenib, which resulted in a notable decrease in tumor markers, emphasizing the importance of early intervention and multidisciplinary care in managing such complex cases.
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Objective: To examine the treatment outcomes of the EXTREME regimen as the first-line therapy for recurrent/metastatic squamous cell carcinoma of the head and neck.

Study Design: Observational study. Place and Duration of the Study: Department of Medical Oncology, Ankara Diskapi Yildirim Beyazit Training and Research Hospital, Turkiye, between January 2014 and December 2021.

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Understanding the molecular mechanisms and gene expression in laryngeal squamous cell carcinoma (LSCC) may explain its aggressive biological behavior and regional metastasis pathways. In the present study, patients with locally advanced LSCC tumors were examined for differential gene expression in the normal mucosa (non-tumoral mucosa), tumors and lymph node tissues. The aim was to identify possible predictive genes for lymph node metastasis.

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Objective: To investigate the prognostic value of the magnetic resonance imaging in Bell's palsy patients.

Methods: Patients who were diagnosed and treated with Bell's palsy between October 2013 and March 2016 retrospectively selected. House-Brackmann grades, pre- and post-treatment pure tone audiograms, stapedial reflexes were analyzed and magnetic resonance imaging (MRI) scans with gadolinium-based contrast agents were evaluated.

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This study aimed to analyze laboratory and radiological imaging results in the prediction of treatment strategy in patients with deep neck infections. Eighty-three patients (55 (66.3%) men, mean age: 38.

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Unlabelled: Backgroud/Objectives: Transoral laser laryngeal microsurgery (LTLM) has been widely used in the treatment of early-stage glottic laryngeal squamous cell carcinoma (LSCC) for the past few decades. Although T stage, tumor grade, anterior commissure involvement, type of cordectomy, positive surgical margin, and postoperative additional therapies were accused as the prognostic factors for recurrence, there is still controversy about these data in the literature. The purpose of this study was to evaluate the oncological results of our patients with early glottic LSCC treated with LTLM as a single-modality therapy in a single-center study.

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Objective: To reveal the incidence and predictive parameters of occult cervical lymph node metastasis (LNM) in patients with cN0 laryngeal squamous cell cancer (LSCC) who underwent surgery as definitive treatment.

Methods: Patients with cN0 laryngeal cancer who had undergone elective neck dissection together with partial or total laryngectomy between January 2006 and November 2020 were retrospectively analyzed. Clinical and histopathologic predictors of occult metastasis were also analyzed.

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Objective: To investigate whether the distance between the two retromolar trigones (RMTs) with the distance between the two posterior plicas (PPs) affects obstructive sleep apnea syndrome (OSAS) and to determine a physical examination method that can be used in the selection of patients to be referred to polysomnography (PSG).

Methods: The study included 86 OSAS patients and 29 healthy controls. RMTs and PPs were measured using a caliper-like device.

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Background/aim: To evaluate the clinical and histopathological effects of fetal brain tissue derived mesenchymal stem cells (FBTMSC) and fibrin glue (FG) on the facial nerve (FN) regeneration in rats with traumatic FN injury.

Materials And Methods: Twenty-eight Sprague Dawley rats were included in the study and divided into 4 groups. Traumatic FN injury (FP) was created by a surgical clamp compression to the main trunk of left FN in all groups.

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Acute suppurative thyroiditis is a very rare and life-threatening endocrine emergency. Thyrotoxicosis is a rare condition accompanying acute suppurative thyroiditis. While the majority of the cases in the literature are caused by different reasons, spontaneous development is very rare.

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Background/aim: We aimed to revealthe incidence and predictive role of insulin resistance and distorted oral glucose tolerance test in nondiabetic patients withBell’s Palsy (BP).

Materials And Methods: Eighty-sixpatients with BP and 28 control subjects; all with normal blood glucose levels and no history of diabetes, were enrolled in the study. We investigated insulin resistance (IR) in all subjects, in terms of HOMA-IR greater than 2.

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Objective: Postoperative radiotherapy (PORT) is indicated in almost two-thirds of patients treated with transoral robotic surgery (TORS) for head and neck tumors. The aim of this study was to quantify the toxicity profile of patients treated with PORT after TORS in oropharyngeal and supraglottic laryngeal cancer focusing on soft tissue necrosis (STN).

Methods: We retrospectively reviewed 28 patients.

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Background/aim: This study aims to determine the therapeutic superiority of the addition of intratympanic steroid or hyperbaric oxygen therapy to systemic steroid treatment in idiopathic sudden sensorineural hearing loss as initial treatment, and evaluate the long- term results of salvage treatment.

Materials And Methods: This study was a retrospective clinical trial with a total of 96 patients with idiopathic sudden sensorineural hearing loss. Patients were divided into 3 groups.

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Head and neck paragangliomas are slowly growing benign tumors and they originate from specialized neural crest cells. This study aimed to express the safety of paraganglioma surgery regarding complications, treatment, and outcomes of patients with head and neck glomus tumors. Medical records of patients who were operated because of head and neck paraganglioma between 2006 and 2016 were reviewed.

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Purpose: It is aimed to present endovascular treatment of carotid blowout syndrome (CBS) in patients with head and neck cancer.

Methods: A retrospective review was performed on patients with carotid blowout syndrome between 2012 and 2018 in our hospital. A total of ten patients with prior history of head and neck cancer surgery and radiation therapy were investigated with clinical, postoperative and follow-up findings as well as technical outcome.

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Objectives: The majority of thyroid nodules are discovered incidentally, and the management may be a challenge if the fine needle aspiration specimen yields indeterminate findings. Our aim was to develop an individualized risk prediction model to provide an accurate estimate of cancer risk in patients with cytologically indeterminate thyroid nodules.

Materials And Methods: Clinical records, ultrasound images, and cytopathology reports of patients who underwent thyroidectomy were retrospectively reviewed.

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Small interfering RNA (siRNA)-based gene silencing strategy has high potential on suppressing specific molecular targets, involved in cancer progression. However, the lack of an effective nanocarrier system that safely delivers siRNA to its target still limits the clinical applications of siRNA. This study aimed to develop albumin-sericin nanoparticles (Alb-Ser NPs) as a novel siRNA delivery system for laryngeal cancer treatment.

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Backround/aim: Papillary thyroid carcinomas (PTC) frequently metastasize to regional lymph nodes. Our purpose was to investigate the predictive role of tumor location for lymph node metastasis pattern in PTCs.

Materials And Methods: Medical records of 110 PTC patients were reviewed retrospectively.

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Head and neck cancer (HNC) is one of the most common malignancies in the world. HNC is a group of cancers that starts in the mouth, nose, throat, larynx, sinuses, or salivary glands. According to this section of the body parts; induction of cancer can be associated with CO and oxidative stress.

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Background: Dysphagia and pain are most common problems after soft palate surgery in obstructive sleep apnea (OSA) patients.

Objective: The aim of this study was to compare the postoperative pain scores and presence of dysphagia in patients who underwent anterior palatoplasty (AP) or uvulopalatal flap (UPF) surgeries.

Materials And Methods: In this prospective study, AP or UPF was performed on the patients with mild or moderate OSA.

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Objective: To evaluate the feasibility and value of sonoelastography in assessing non-thyroid neck masses.

Methods: Non-thyroid neck masses requiring surgical interventions were evaluated using conventional B-mode ultrasonography (US) (size, short/long axis rate, shape, hilum, echogenity, calcification, necrosis, and peripheral edema) and sonoelastograpy (SE) with strain ratio (SR) and elasticity score (ES) before surgery. These parameters were compared with the histopathological examination.

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