Publications by authors named "Asuman Feda Bayrak"

The prognostic significance of tumor volume (TV) in laryngeal squamous cell cancer (LSCC) has been demonstrated previously. Still, its clinical use is uncertain, and a method for accurate staging for TV is lacking. This study aimed to develop an objective staging and determine the effect of tumor volume on disease outcome after surgical treatment for LSCC.

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Background: Determining a predictable duration to restenosis very essential for reducing mortality and morbidity for tracheal stenosis surgery.

Objectives: The aim of this study was to determine the critical periods for secondary restenosis risk for operated patients with post-intubation tracheal stenosis (PITS) during the initial healing period.

Methods: A total of 61 patients with a diagnosis of surgically treated PITS were included in the study.

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Objectives: This study aimed to examine the relationship between checkpoint receptors (PD-1, PD-L1, PD-L2, CTLA-4) and lymphoid infiltration level (TILs) with prognostic features of patients with laryngeal squamous cell carcinoma (LSCC).

Methods: A retrospective study was designed at a tertiary referential university hospital between April 2008 and December 2020. The surgical specimen of the patients who met the eligibility criteria were re-examined histopathological, sociodemographic, clinical, pathological, and follow-up findings of patients were determined.

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Purpose: The aim of the present study was to evaluate the effect of acetyl-l-carnitine (ALC) and N-acetyl cysteine (NAC) on ionizing radiation (IR)-induced cytotoxicity and change in DNA damage-related genes in House Ear Institute-Organ of Corti 1 (HEI-OC1) cells.

Methods: HEI-OC1 cells were irradiated with 5 Gy radiation and treated by eight combinations of NAC and/or ALC: control, NAC, ALC, IR, NAC + IR, ALC + NAC, ALC + IR, and ALC + NAC + IR. Cell viability, apoptotic cell death, and DNA damage were measured at the 72nd hour.

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Objectives: The aim of this study is to investigate the efficacy of locally applied insulin-like growth factor 1 (IGF-1) on the recovery of facial nerve functions after crush injury in a rabbit model.

Methods: The rabbits were randomly assigned into three groups. Group 1 consisted of the rabbits with crush injury alone; group 2, the animals applied saline solution onto the crushed facial nerve and group 3, IGF-1 implemented to the nerve in the same manner.

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Objective: In this study causes, risk factors, prevention strategies, diffuculties encountered during revision cochlear implant surgery, reimplantation in pediatric age group were evaluated.

Methods: Charts of 957 CI patients younger than 18 years of age implanted at Izmir Bozyaka Teaching and Research Hospital between 1998 and July 2012 and 18 referred CI complications at same age group were retrospectively evaluated. Revision and reimplantation surgeries were systematically reviewed.

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