Publications by authors named "Mehmet Birol Ugur"

Purpose: The effect of the inter-implant interval time on language and communication skills has been a subject of research for years in children with bilateral cochlear implants. This study aimed to investigate language and some attention and memory skills in children with bilateral sequential and simultaneous cochlear implants.

Method: The study included a total of 40 children aged between 6 and 8 years old, grouping bilateral simultaneous cochlear implanted children, sequential implanted children with 0-2 years interval, sequential implanted children with 2-4 years interval, and normal hearing peers.

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Introduction: There are particular challenges in the implantation of malformed cochleae, such as in cases of facial nerve anomalies, cerebrospinal fluid (CSF) leaks, erroneous electrode insertion, or facial stimulation, and the outcomes may differ depending on the severity of the malformation. The aim of this study was to assess the impact of inner ear malformations (IEMs) on surgical complications and outcomes of cochlear implantation.

Methods: In order to assess the impact of IEMs on cochlear implant (CI) outcomes, 2 groups of patients with similar epidemiological parameters were selected from among 863 patients.

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Background: The study aims to evaluate the usage of gold weight implants and monitor complaints and comfort of patients.

Methods: A hundred and ninety-one implantations performed between January 2009 and January 2019 were analyzed. Seventy-eight patients included in this study The average age of the patients was 51.

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Objective: To evaluate the long-term balance outcomes of vestibular nerve section (VNS) and labyrinthectomy (L) operations. The indirect outcomes will be the correlation of objective and subjective test results and an analysis of anterior-posterior versus medial-lateral computerized posturography (CP) scores.

Methods: This retrospective study evaluated objective CP and subjective Dizziness Handicap Inventory (DHI) results of patients who underwent VNS and L surgeries for Ménière's disease.

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Introduction: Cochlear implant (CI) surgery is a safe and standardized procedure in the presence of normal temporal bone anatomy. However, in the surgery of patients with chronic otitis media (COM), the surgeon may encounter several problems. The aim of this study was to evaluate the impact of COM with and without cholesteatoma on surgical and auditory outcomes of CIs.

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Background/aim: To compare outcomes of canal wall up (CWU) and canal wall down (CWD) techniques in the treatment of middle ear cholesteatoma.

Materials And Methods: Medical records of 76 patients who had a primary surgery due to middle ear cholesteatoma between July 2015 and November 2017 were reviewed retrospectively. Hearing thresholds, speech discrimination scores (SDS), recurrences, and revision surgeries of CWU and CWD surgeries were compared.

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The relationship between objective vestibular tests and subjective vestibular tests is a controversial topic. In this study, to contribute to this issue, the vestibulo-ocular reflex features and their relationship with balance perception at long-term follow-up in vestibular neurectomy (VN) and total labyrentectomy patients were evaluated. Prospectively, 19 VN and 18 labyrinthectomy patients were enrolled in this study.

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Objective: To assess the etiology, demographics, rates and outcomes of revision surgeries, and device survival rates after cochlear implantation.

Study Design: Retrospective case review.

Setting: Tertiary Otology & Neurotology center.

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Introduction: The aim of this study is to assess the effect of obstructive sleep apnea syndrome (OSAS) severity on leptin levels in children.

Patients And Methods: Children with habitual snoring underwent overnight polysomnography. Fasting venous blood samples were obtained between 8 AM and 9 AM, following the night of the sleep study.

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Introduction: Temporal bone paragangliomas (TBPs) are benign tumors arising from neural crest cells located along the jugular bulbus and the tympanic plexus. In general surgical excision, radiotherapy and wait-and-scan protocols are the main management modalities for TBPs.

Objective: In this paper we aim to present our clinical experience with TBPs and to review literature data.

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Objective: To compare the histopathological effects of fibrin glue (FbGl) and cyanoacrylate (CyAc) on the maxillary sinus mucosa.

Methods: Twenty rabbits were divided into two groups of 10, and surgical defects were created in the maxillary sinuses. The right maxillary sinus was treated with FbGl in one group and with CyAc in the other group.

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Objective: To investigate the effect of septal deviation severity on the dimensions of the lateral lamina of the cribriform plate (LLCP), middle turbinate length (MTL), and the angle of the lateral lamella of the cribriform plate (ALLCP).

Methods: Paranasal computed tomography (CT) scans of 148 patients with septum deviation (102 males, 46 females; age range 18-63 years) were retrospectively evaluated. The patients were divided into 3 groups according to the measured angle of nasal septal deviation as mild (<9°), moderate (9-15°), or severe (>15°).

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Objective: This study aims to investigate the histopathological changes secondary to the administration of Ankaferd Blood Stopper® (ABS) into the auricular cartilage.

Materials And Methods: Both of the auricular cartilages of thirty New Zealand rabbits were marked with tattoo ink. A 0.

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Objectives/hypothesis: To compare the eustachian tube (ET) angle (ETa) and length (ETl) of ears with and without chronic otitis media (COM), and to determine the relationship between ET anatomy and the development of COM.

Study Design: A retrospective case-control study.

Methods: The study group comprised 125 patients (age range, 8-79 years; 64 males and 61 females) with 124 normal ears and 126 diseased ears, including ears with chronic suppurative otitis media (CSOM) with central perforation, intratympanic tympanosclerosis (ITTS), cholesteatoma, and a tympanic membrane with retraction pockets (TMRP).

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Introduction: Basaloid squamous cell carcinoma (BSCC) is a rare subtype of squamous cell carcinoma (SCC). Because of its rarity, both clinical and prognostic features of this variant are not well known.

Objective: In this study, we aimed to determine the frequency of BSCC and other SCC variants among all laryngeal SCC cases, and to determine clinical and prognostic features of BSCC variant.

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The incidence of numerous head and neck tumours is a known issue though bilateral synchronous tonsillar carcinoma reports are so uncommon that only 20 cases were found in a literature review. Most of these patients were treated with bilateral tonsillectomy followed by adjuvant radiotherapy. We report, to our knowledge, the first case of bilateral synchronous tonsillar squamous cell carcinoma treated only with chemoradiotherapy without tonsillectomy.

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Our aim was to assess the effects of polylactic acid (PLA) on middle ear mucosa and cochlea, to be used as a film barrier for postoperative adhesion prevention in the middle ear. Twenty-one albino Guinea pigs were included in the study. A window was opened on both tympanic bulla and on one side PLA material was placed in the middle ear and on the other side only fenestration was performed and used as a control.

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Introduction: Mucoceles are mucus-filled, epithelial-lined sacs that slowly develop in the paranasal sinuses when sinus or concha bullosa drainage is obstructed by inflammatory processes, trauma, or prior surgery. They are extremely rare in children. Symptoms usually arise from the nasal obstruction or compression of neighboring structures.

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Background: This study evaluates the degree of the unilateral hypertrophied inferior turbinate (HIT) by computed tomography (CT) and determines and compares the enlargement of the turbinate bone and soft tissue in different parts of the HIT in pediatric and adult groups.

Methods: Both pediatric and adult patients were studied in two groups: those with a straight or nearly straight septum (n = 25 and 124, respectively) and those with deviation (n = 64 and 129, respectively). The cross-sectional area (CSA) of the IT bone and soft tissue were measured at anterior, middle, and posterior thirds of the IT in coronal CT sections.

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Isolated cricoid fracture is encountered rarely during the clinical follow-up. A 71-year-old female patient was referred to emergency service with complaints of fall from height, and urgent tracheotomy was performed due to dyspnea. During the examination, isolated fractures of the cricoid cartilage were identified.

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Objective: The objective of this study was to investigate the correlation of symptoms in patients with presumed allergic rhinitis on the basis of their medical history and physical examination with the levels of total immunoglobulin E (IgE) and specific IgE, and to question the necessity of these tests in diagnosis.

Methods: The records of 295 patients, who had at least two complaints of nasal itching, nasal obstruction, runny discharge and sneezing, and/or presumed as allergic rhinitis on physical examination findings were retrospectively screened. The correlation between the levels of IgE, specific inhalant IgE, and food-specific serum IgE were evaluated in these patients.

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Objective: To evaluate the effects of peritonsillar injection of levobupivacaine with epinephrine in children undergoing adenotonsillectomy, through an intraindividual study.

Patients And Methods: 20 children (age 6-13 years) undergoing elective tonsillectomy with or without adenoidectomy were enrolled in this prospective, randomized, intraindividual trial. After entubation and just prior to incision, 3 ml of 0.

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Objective: In this study, our aim was to determine presence of dysfunction in the efferent auditory system of children with type-I diabetes mellitus (DM) presenting no evidence of symptomatic neuropathy.

Methods: Thirty children with type-I DM (DM group) and 31 age matched healthy children (control group) with normal hearing and middle ear function were entered to the study. Distortion product otoacoustic emissions (DPOAE), transiently evoked otoacoustic emissions (TEOAE), and spontaneous otoacoustic emissions (SOAE) measurements were performed.

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Study Objective: To determine the effect of dexmedetomidine on intraoperative bleeding during septoplasty and tympanoplasty operations.

Design: Randomized, placebo-controlled study.

Setting: Univesity medical center.

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Background/aims: We aimed to determine the effects of adenoidectomy and/or tonsillectomy (AT) on cardiac functions in children with adenoid and/or tonsillary hypertrophy and obstructive sleep apnea syndrome (OSAS) by using echocardiography with tissue Doppler imaging facility (TDI).

Methods: Twenty-nine children with adenoid and/or tonsillary hypertrophy and OSAS and 26 children with primary snoring entered the study. Cardiac functions were assessed by echocardiography with TDI in both groups.

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