İşyeri, işyeri araç-gereç yerleşim düzeni ve verimliliğe etkisi

TEZ1661Tez (Yüksek Lisans) -- Çukurova Üniversitesi, Adana, 1995.Kaynakça (s. 98-101) var.iv, 103 s. ; 30 cm.

Toplam kalite yönetimi uygulanan ve uygulanmayan iki işletmenin iç müşteri tatmini açısından karşılaştırılması

TEZ3900Tez (Doktora) -- Çukurova Üniversitesi, Adana, 2001.Kaynakça (s.119-125) var.viii, 134 s. : res. ; 29 cm.…Bu çalışma Ç.Ü. Bilimsel Araştırma Projeleri Birimi Tarafından Desteklenmiştir. Proje No

Factors contributing to limited or non-use in the cochlear implant systems in children: 11 years experience

PubMedID: 23280278Objectives: The aim of this study was to analyze the incidence and etiologic factors of non-use and limited use of cochlear implants. The patients' age, gender, duration of implantation and additional disabilities were investigated. Patients and methods: Of the 413 (200 males, 213 females) pediatric patients (age under 16) implanted in our clinic between January 2000 and December 2011, 12 limited user/non-user cochlear implanted patients were selected who had a follow-up of at least 24 months. Preoperative and postoperative listening progress profile (LiP) and meaningful auditory integration scale (MAIS) tests were performed to analyze the auditory performances of the patients. Results: In total of 12 recipients (2.90%) (7 male and 5 female patients; age range, 5-13 years), 4 (0.96%) patients were non-users and 8 (1.93%) patients were limited users. The patients had some additional disabilities as autism, cerebral palsy, moderate mental retardation, attention deficit/hyperactivity disorder, ossified cochlea due to meningitis and learning disability-lack of family interest. None had experienced device failure. In the postoperative 24th month, listening progress profile and meaningful auditory integration scale test scores were better in the limited users as expected. Conclusions: It should always be considered in patients with additional factors like autism, mental-motor retardation, learning disabilities that they will show limited development from cochlear implantation. These patients are potential limited/non-users. These patients require unique rehabilitation and provide high family and educational interest. © 2012 Elsevier Ireland Ltd

Extramedullary leukemia with central facial palsy originated from poorly differentiated abdominal lymphoma

PubMedID: 2767897An 8-year-old boy was presented with central facial palsy caused by extramedullary leukemia which had originated from poorly differentiated abdominal lymphoma. On cerebral tomographic scanning, there were adherences in the basal area of the brain. The occurrence of central facial palsy is very rare in childhood leukemia. However, in this case facial palsy was central in type and appeared as the presenting sign. The occurrence of central facial palsy was confirmed by the absence of clinical, radiological and audiological signs of peripheral involvement. The contralateral stapedius reflex test (500, 1000, and 2000 Hz) was present in this case. © 1989

Ultrastructure of the nasopharyngeal orifice epithelium of the eustachian tube in otitis media with effusion

PubMedID: 9066145Epithelial changes in nasopharyngeal orifice of eustachian tube in 15 patients with otitis media with effusion (OME) were studied. Ultrastructural examination of the epithelium revealed distinct alterations in the ciliated cells, intermediate cells and in the columnar cells with microvilli. The ciliated cells were the predominant cell type in the epithelium and were characterized by compound cilia and apical cytoplasmic bulgings with fine granular content. The intermediate cells showed more prominent lateral cytoplasmic bulgings. Cytoplasmic bulgings of both cell types eventually pinched off and set free as cytoplasmic bodies, similar to the cytoplasmic bodies derived from lymphocytes. As a result of epithelial destruction, the lumen of nasopharyngeal orifice was occupied by epithelial cellular debris among which leucocytic cells and cytoplasmic bodies with fine granular content. This accumulation in the lumen probably developed as a result of defective mucociliary activity which is due to compound cilia formation in the ciliated cells. Moreover, ultrastructural resemblance of cytoplasmic bodies derived from ciliated cells, intermediate cells and leucocytic cells indicates the possible role of these cells in common immune defence mechanisms in chronic otitis media with effusion

Intratympanic methylprednisolone versus dexamethasone for the primary treatment of idiopathic sudden sensorineural hearing loss

PubMedID: 30431012OBJECTIVES: The aim of the present study was to compare the therapeutic effectiveness of intratympanic (IT) methylprednisolone and dexamethasone in the initial treatment of patients with idiopathic sudden sensorineural hearing loss (ISSHL). MATERIALS and METHODS: A total of 46 patients with ISSHL who had been treated with IT methylprednisolone or dexamethasone were included in the present study. Dexamethasone (4 mg/mL) and methylprednisolone (20 mg/mL) were given transtympanically to 22 and 24 patients, respectively, one dosage per day for 5 consecutive days. Audiologic evaluations were performed pretreatment, daily in inpatient clinics, and in the first week and second month after discharge, using four-frequency pure-tone average (PTA) and speech discrimination score (SDS). Audiologic improvement was classified according to the Furuhashi criteria. RESULTS: According to the Furuhashi criteria, the therapeutic success rate was 62.5% (complete improvement 16.7% and marked improvement 45.8%) in the methylprednisolone group, whereas it was 54.6% (complete improvement 27.3% and marked improvement 27.3%) in the dexamethasone group. Therapeutic success was higher in the methylprednisolone group; however, it was not statistically significant. When the audiologic improvement was accepted as >10 dB in PTA, the therapeutic success rates were 83.3% in the methylprednisolone group and 72.8% in the dexamethasone group. The mean (±SD) improvement of PTA before and after treatment was 30.8±21.4 in the methylprednisolone group and 24.7±2.5 in the dexamethasone group. The mean improvement in SDS was 32.6±25 in the methylprednisolone group and 23.7±26.9 in the dexamethasone group. CONCLUSION: IT steroids are safe, effective, and well-tolerated agents in the initial treatment of patients with ISSHL. Despite having different pharmacokinetic characteristics, IT methylprednisolone and dexamethasone have no superiorities over each other in the primary treatment in patients with ISSHL. © 2018 by The European Academy of Otology and Neurotology and The Politzer Society

Acyclovir in the treatment of recurrent respiratory papillomatosis: A preliminary report

PubMedID: 8024110Introduction: In this study, we evaluate the effect of acyclovir in the treatment of recurrent respiratory papillomatosis (RRP), in addition to CO2 surgery. Materials and Methods: We include 12 patients who had aggressive RRP and required at least three prior endoscopic surgeries in this study. Acyclovir treatment started the day after the surgery. During the planned treatment period of 6 months, patients older than 5 years were asked to take the daily dose of 800 mg, and those younger than 5 years were asked to take 400 mg. Results: Nine of 12 patients were disease free during the follow-up periods, which ranged from 14 to 25 months with a mean of 18 months. Only 3 patients who used the drug inadequately required reoperation. Concluslon: Because of the specific viral origin of RRP, we hope that addition of acyclovir to surgery will preclude or at least decrease the number of recurrences in this potentially fatal disease. © 1994

Small cell carcinoma of the larynx

PubMedID: 7978041[No abstract available

Radiological imaging findings of patients with congenital totally hearing loss

PubMedID: 27340982OBJECTIVE: The aim of this study was to determine and classify inner ear abnormalities in patients who had cochlear implants because of congenital sensorineural hearing loss using preoperative temporal bone computed tomography and magnetic resonance imaging. MATERIALS and METHODS: Patients in the otolaryngology department who had cochlear implants because of congenital sensorineural hearing loss between January 2011 and December 2013 were included in the study. There were 167 male and 133 female patients, a total of 300. All of the patients were evaluated with 4-detector-row computed tomography and 1.5 Tesla magnetic resonance imaging. RESULTS: Inner ear abnormalities were found in 136 of 600 ears (20.3%). There were six ears with incomplete partition-II (4.4%), five ears with incomplete partition-I (3.6%), two ears with Michel deformity (1.4%), two ears with cochlear hypoplasia (1.4%), two ears with cochlear otosclerosis (1.4%), and one ear with common cavity deformity (0.7%). Dilatation of the internal acoustic canal was found in 42 ears (30.9%); also, 21 ears with cochlear nerve aplasia/hypoplasia (15.4%), 5 ears with internal acoustic canal aplasia, and 1 ear with internal acoustic canal hypoplasia (0.73%) were detected. There were 10 ears with posterior semicircular canal (7.3%), 10 ears with lateral semicircular canal (7.4%), 8 ears with superior semicircular canal aplasia/hypoplasia (5.9%), and 8 ears with lateral semicircular canal-vestibular dysplasia. An enlarged vestibular aqueduct was found in 16 ears (11.7%). High jugular bulbs were found in 21 ears; however, this variation was not considered to be an inner ear abnormality. CONCLUSION: Computed tomography and magnetic resonance imaging are essential for the evaluation, determination, and classification of inner ear abnormalities in patients with congenital sensorineural hearing loss who are candidates for cochlear implant operations. Also, these radiological instruments aid in determining contraindications and predicting intraoperative difficulties. Computed tomography and magnetic resonance imaging findings for these patients should be evaluated by an experienced radiologist before the operation. © 2016 by The European Academy of Otology and Neurotology and The Politzer Society