Publications by authors named "Onal K"

Purpose: Several diagnostic modalities are used to detect CSF leaks. Intraoperative use of intrathecal fluorescein can help to detect and localize a CSF leak simultaneously. However, it is not FDA approved, the application is invasive and has serious complications.

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Objectives: To compare the anatomical and functional outcomes of two different grafts which are used for the reconstruction of subtotal or total tympanic membrane perforations: the wheel-shaped composite cartilage graft (WsCCG) and temporalis fascia (TF).

Methods: Ninety patients (94 ears) who underwent type 1 tympanoplasty for non-complicated chronic otitis media between March 2014 and June 2016 in a tertiary referral center were included in a randomized, controlled, prospective clinical trial. Tympanic membranes were reconstructed with the WsCCG or TF.

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Objective: The aim of this study was to share our clinical experience with the neurovascular myofasiocutan infrahyoid flap (NMIHF), which was used for the reconstruction of the defects after oral cavity cancer surgery.

Methods: Records of five patients who were diagnosed with oral cavity cancer and underwent tumor resection, neck dissection, and defect reconstruction with NMIHF between 2012 and 2017 were analyzed retrospectively.

Results: The infrahyoid flap was used in five patients: four males and one female.

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Objective: This study aimed to evaluate the recurrence and survival of patients treated with frontolateral laryngectomy for T1 and T2 glottic laryngeal carcinoma.

Methods: Patients who underwent frontolateral laryngectomy for glottic laryngeal carcinoma at a tertiary hospital between March 2009 and June 2014 were included. Patient demographics, tumor stage, treatment and histopathological examination data, and adjuvant therapy details were evaluated.

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Objective To determine the predictive value of nasal endoscopic findings and symptoms in the diagnosis of granulomatosis with polyangiitis (GPA). Study Design A cross-sectional study. Setting A tertiary university hospital.

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Objectives: To investigate the presenting symptoms, intra-operative findings and long-term facial nerve function in patients treated for cholesteatoma with associated facial paralysis.

Methods: Fifteen patients with facial paralysis due to middle-ear cholesteatoma who underwent tympanomastoidectomy surgery from February 2000 to February 2015 were retrospectively reviewed. After removal of the cholesteatoma, a limited area of the fallopian canal, in which facial nerve oedema or redness was evident, was opened.

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Objectives: Clinical application of gentamicin may cause nephrotoxicity and ototoxicity. Our study is the first study to investigate the protective effects of edaravone against the gentamicin-induced ototoxicity. We investigated the protective effect of intraperitoneal (i.

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Objective: This study aimed to evaluate the effect of tumour thickness on other clinicopathological parameters in early stage lower lip squamous cell carcinoma.

Methods: Forty-six consecutive patients with lower lip squamous cell carcinoma were included in the study. Demographic, clinical and pathological data were retrospectively collected.

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The objective of this study was to determine the incidence of thyroid gland invasion in laryngeal and hypopharyngeal squamous cell carcinoma; and the association between clinicopathological parameters and thyroid gland invasion. Medical records of 75 patients with laryngeal and hypopharyngeal squamous cell carcinoma who underwent total laryngectomy with thyroidectomy were reviewed, retrospectively. Preoperative computed tomography scans, clinical and operative findings, and histopathological data of the specimens were evaluated.

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Recognized causes of high-frequency sensorineural hearing loss (SNHL) after tympanoplasty with and without mastoidectomy include acoustic trauma from manipulation of the ossicles, the noise generated by suctioning and, in the case of mastoidectomy, the noise generated by temporal bone drilling. We conducted a retrospective study to identify the effects of ossicular manipulation and mastoid drilling on high-frequency SNHL. Our study population was made up of 51 patients-20 males and 31 females, aged 10 to 59 years (mean: 28.

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The aim of our study was to present our retrospective experience in the single-stage surgical reconstruction of 21 tracheal stenosis (TS) patients during the last 17 years, considering the characteristics of the treated stenosis, surgical procedures performed, and postoperative outcomes and complications. All demographic and clinical data were collected retrospectively. Chest and neck computed tomography (CT) scans were performed to assess the stenosis, including length, location, and glottic involvement.

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Conclusion: Delivery of a carbon dioxide laser is an effective method and can be used in selected cases of tracheal stenosis.

Objectives: To present retrospective experience in tracheal stenosis of 16 patients treated by bronchoscopic delivery of carbon dioxide laser, considering the characteristics of the treated stenosis, surgical procedures performed, and post-operative outcomes and complications.

Methods: All demographic and clinical data were collected retrospectively.

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Background: There is no consensus as to whether allergic rhinitis (AR) is a cause of adenoid hypertrophy (AH). This study evaluated the role of allergy in AH, and it explored the role of nasal endoscopy and the history of diagnosing AR in children empirically.

Materials And Methods: This study enrolled 155 children consecutively in İzmir Behcet Uz Children`s Hospital between January and September 2013.

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Conclusion: Echo-planar diffusion-weighted magnetic resonance imaging (DW MRI) is more reliable than high-resolution computed tomography (HRCT) in predicting the presence and localization of cholesteatoma before tympanomastoid surgery.

Objectives: To evaluate the diagnostic accuracy of HRCT and echo-planar DW MRI in the detection and localization of cholesteatoma.

Methods: Fifty-nine patients were prospectively included in this study.

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Objective: To demonstrate if cochleopathy in patients with type 2 diabetes with normal audiometric hearing threshold can be detected with otoacoustic emissions or medial olivocochlear (MOC) reflex measurements.

Study Design: Cross-sectional study.

Setting: Tertiary university teaching hospital.

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We have planned to demonstrate histopathologic effects of mid- or long-term oral use of desloratadine and cetirizine HCl molecules on middle ear mucosa of rats. Thirty-six rats were randomized equally into six groups. Desloratadine groups received once daily doses of 1 mg/ml desloratadine for 30 (D30 Group) or 60 (D60 Group) days.

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The main goal of this study was to evaluate the success rate of repeated Testicular Sperm Extraction (TESE) in Klinefelter Syndrome (KS). Eighteen patients with the diagnosis of KS who had undergone micro TESE previously were re-evaluated between May 2007 and May 2012. Testes were measured and testicular volume was calculated by orchidometer and by scrotal ultrasonography in all patients All patients underwent repeated micro TESE.

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The objective of the study was to determine the inter-rater variability in assessment of laryngeal findings and whether diagnosing laryngopharyngeal reflux based on the laryngeal findings and history alone without considering allergic rhinitis leads to the overdiagnosis and overtreatment of laryngopharyngeal reflux. Patients with positive and negative skin prick tests were recruited from an allergy clinic in a tertiary teaching university hospital. All subjects completed the Reflux Symptom Index (RSI) and underwent laryngeal examinations by three physicians blinded to the skin prick test results and the Reflux Finding Score (RFS) was determined.

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Objective: To determine the inter-rater reliability of nasal endoscopic findings and the feasibility of diagnosis of allergic rhinitis based solely on symptoms and nasal endoscopy.

Design: Prospective observational study.

Setting: University Teaching hospital.

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Hypothesis: To evaluate the effects of hyperandrogenism on otoacoustic emission levels and the medial olivocochlear reflex in adult female subjects.

Background: Women have a hearing advantage over men. Otoacoustic emission levels tend to be higher in female subjects, in both newborns and adults.

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Endoscopic sinus surgery is a widely used technique in otolaryngologic practice. To avoid complications, the locations of important anatomical structures, such as the anterior ethmoid artery (AEA), should be determined preoperatively. We want to evaluate the effect of ethmoid cavity pneumatization on the location of the AEA and to determine consistent landmark(s) for locating the AEA.

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We conducted a prospective study to compare the effectiveness of conventional computed tomography (CT) and puffed-cheek CT in detecting the presence and extension of oral cavity malignant tumors. We enrolled 11 patients--5 men and 6 women, aged 32 to 85 years--who had a primary squamous cell carcinoma of the oral cavity. These tumors were located in the floor of the mouth in 4 patients, in the buccal mucosa in 4, in both the buccal mucosa and retromolar trigone in 2, and in the retromolar trigone only in 1.

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Septic cavernous sinus thrombosis is a rare and potentially life-threatening complication of infections involving the paranasal sinuses or the middle one-third of the face. We report a challenging case of cavernous sinus thrombosis to familiarize otolaryngologists with its clinical features, diagnosis, and management. The patient was a 45-year-old diabetic woman whose signs and symptoms mimicked those of complicated fungal sinusitis.

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The objective of this study is to establish the role of risk factors in the etiology of pharyngocutaneous fistula formation after total laryngectomy. A retrospective study was performed for patient, disease and treatment-related factors, and also factors related to pathology specimen. Logistic regression analysis revealed that fistula development ratio was 4.

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Objective: We report an unusual case of a fungus ball in the concha bullosa, without involvement of the paranasal sinuses.

Case Report: A 29-year-old woman presented complaining of nasal obstruction and postnasal discharge. Paranasal computed tomography demonstrated that the concha bullosa in the right middle turbinate was filled with a high-density material.

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