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Dive into the research topics where Cem Ozer is active.

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Featured researches published by Cem Ozer.


Journal of Clinical Anesthesia | 2008

Efficacy of lornoxicam for acute postoperative pain relief after septoplasty: a comparison with diclofenac, ketoprofen, and dipyrone

Mesut Sener; Cuneyt Yilmazer; Ismail Yilmaz; Nesrin Bozdogan; Cem Ozer; Aslı Dönmez; G. Arslan

STUDY OBJECTIVES To compare the efficacy of injectable lornoxicam with diclofenac, ketoprofen, and dipyrone for acute postoperative pain. DESIGN Prospective, randomized, placebo-controlled, double-blind study. SETTING University hospital. PATIENTS 200 ASA physical status I patients who were scheduled for elective septoplasty with general anesthesia. INTERVENTIONS Patients were divided into 5 groups according to the intramuscularly administered analgesic drug: lornoxicam 8 mg (twice daily), diclofenac 75 mg (twice daily), ketoprofen 100 mg (twice daily), dipyrone 1 g (three times daily), and placebo (twice daily). MEASUREMENTS Pain intensity was evaluated with a 0 to 100 mm Visual Analog Scale (VAS) at the 2nd, 4th, 6th, 8th, 12th, 16th, 20th, and 24th hour postoperatively. Intramuscular pethidine 1 mg/kg was administered to patients requiring additional analgesia, and treatment-related adverse effects were noted. MAIN RESULTS Pethidine requirement was found to be significantly higher in the placebo group (1.8 mg/kg per 24 hours; 95% confidence interval, 1.5-2.2) than in the other groups (P = 0.001). No significant difference in opioid requirement was found among the treated groups (P > 0.05). Postoperative VAS scores were significantly lower at specific hours in the treatment groups when compared with placebo group (P < 0.05). No statistically significant difference in adverse effects was found among the groups studied (P > 0.05). CONCLUSIONS Efficacy of lornoxicam in the management of acute postoperative pain was not superior to that of other nonopioid analgesics used in this study.


European Archives of Oto-rhino-laryngology | 2009

Appropriate interslice gap for screening coronal paranasal sinus tomography for mucosal thickening

Can Alper Cagici; Cuneyt Yilmazer; Cem Hurcan; Cem Ozer; Fulya Ozer

The objective of this study was to establish the appropriate interslice gap for screening coronal paranasal sinus tomography to identify sinus mucosal thickening. We reviewed 100 coronal paranasal sinus tomographic scans (interslice gap, 2 mm) that had been performed at our institution between January 2004 and November 2004 to evaluate rhinosinusitis. Digital photographs of all slices from each tomographic scan were taken. The intervening slices were eliminated to form six different sets of interslice gaps of 4, 6, 8, 10, 16, and 20 mm. The remaining slices for each set were moved to corresponding folders created on a computer to catalog each interslice gap. The same specialist evaluated each folder of interslice gap. The paranasal sinuses, the ethmoid infundibulum, and the frontal recess were evaluated for mucosal thickening. The sensitivity, specificity, and accuracy of each interslice gap in detecting mucosal thickening were calculated by accepting the results of 2-mm-thick slices as the gold standard. The interslice gap of 2 mm was compared with that of other interslice gaps using the chi-square test for dependent groups (the McNemar test). The value of 20 mm interslice gap in detecting sinus mucosal thickening was found to be significantly low when compared with the interslice gap of 2 mm (P = 0.022). Using coronal paranasal sinus tomography, an interslice gap up to 16 mm may be used to detect sinus mucosal thickening.


Head and Neck-journal for The Sciences and Specialties of The Head and Neck | 2011

Clinical significance of TRAIL and TRAIL receptors in patients with head and neck cancer.

Burcak Yoldas; Cem Ozer; Ozlem Ozen; Tuba Canpolat; Isilay Dogan; Thomas S. Griffith; Salih Sanlioglu; Levent N. Ozluoglu

Tumor necrosis factor (TNF)‐related apoptosis‐inducing ligand (TRAIL) is a death ligand currently under clinical trials for cancer. The molecular profile of TRAIL and TRAIL receptors has not yet been mapped for patients with laryngeal squamous cell carcinoma (SCC) or patients with oral cavity squamous cell carcinoma (OCSCC).


Otolaryngology-Head and Neck Surgery | 2011

Growth Characteristics and Clinical Manifestations of the Paranasal Sinus Osteomas

Fuat Buyuklu; Mehmet Volkan Akdogan; Cem Ozer; Ozcan Cakmak

Objective. To investigate the clinical features of paranasal sinus osteomas and to estimate the growth rate of these tumors in a large series of patients. Design. Case series with chart review. Setting. University hospital, tertiary referral center. Subjects and Methods. The authors retrospectively reviewed the paranasal sinus tomography scans that were taken between January 1997 and April 2008 to find patients with paranasal sinus osteomas. A questionnaire was performed to evaluate the possible clinical symptoms associated with sinus osteomas, and control paranasal sinus computed tomography was taken for patients in whom paranasal computed tomography examination had been done at least 1 year ago. Results. A total of 17,154 paranasal sinus computed tomographies of 14,137 patients were reviewed, and 243 cases of paranasal sinus osteomas were found. The lesions were located in the frontal sinus in 183, ethmoid sinus in 48, maxillary sinus in 5, and sphenoid sinus in 7 patients. Eighty-nine patients with paranasal sinus osteomas were readmitted. The mean follow-up was 54 months in this group. In 46 of 89 patients, an increase in the size of osteomas was detected. The mean growth rate of osteomas was estimated to be 0.79 mm/y in the cephalocaudal direction and 0.99 mm/y in the mediolateral direction. No significant differences were found in the growth rate according to location and growth directions. Conclusion. Neither a specific growth pattern nor a specific factor affecting the growth rate of these tumors could be demonstrated. Follow-up is necessary because of the potential severe complications.


Head & Face Medicine | 2006

Polyp in concha bullosa: a case report and review of the literature

Alper Nabi Erkan; Tuba Canbolat; Cem Ozer; Ismail Yilmaz; Levent N. Ozluoglu

Polyp originating within a concha bullosa is uncommon; we report only the third such case in the English literature. A 45-year-old man presented with nasal obstruction and headache. Examination of the nose revealed right septal deviation and a hypertrophic left middle concha. Computed tomography confirmed right septal deviation and identified left concha bullosa with thickening of the mucosa covering this lesion. The lateral lamella of the affected turbinate was removed and a mass was excised. Histopathologic examination of the excised mass revealed polypoid hyperplasia. The rare finding of polyp in concha bullosa is discussed with a review of the literature. In any case of concha bullosa, computed tomography images should be carefully evaluated before surgery to check for other pathologies that might have arisen within the lesion.


Turk Otolarengoloji Arsivi/Turkish Archives of Otolaryngology | 2016

Pediatric Mass Lesions of the Head and Neck Region and Fine-Needle Aspiration Biopsy Results

Erkan Eski; Volkan Akdogan; Seda Babakurban Turkoglu; Muhammed Furkan Sokmen; Fatma Caylakli; Cem Ozer; Emine Tuba Canpolat; Ismail Yilmaz

Objective 1. To provide a classification of pediatric mass of the head and neck region and evaluate their frequency. 2. To examine the findings of fine-needle aspiration biopsy (FNAB) in pediatric patients along with its contribution to diagnosis. Methods Totally, 233 pediatric patients (125 boys and 108 girls) operated at Başkent University for head and neck mass were included. Clinical, radiological, and histopathological data were retrieved from medical records. Results The mean age was 119±65 months, and the mean duration of follow-up was 75±49 months. Localization of the masses was as follows: 208 (89%) in the neck, 21 (9%) in the oral cavity, 2 (1%) in the neck and nasopharynx, and two (1%) in the larynx. The most common surgical procedure was open excisional biopsy (n=105, 45%) followed by cystic mass excision (n=72, 31%) and salivary gland excision (n=33, 14%). Based on histopathological findings, benign cystic lesions were the most common disease group (n=77, 33.1%), whereas reactive lymphadenopathy was the most common condition (n=36, 15%) when a single disease was considered. Infectious/inflammatory diseases, malignancies, and benign salivary gland diseases were present in 49 (21%), 24 (10.3%), and 22 (9.4%) patients, respectively. FNAB was performed in 29.8% of the patients with an accuracy of 90.3% (95% CI, 80.1-96.4). Conclusion The differential diagnosis of head and neck masses during childhood includes a wide spectrum with the different conditions being benign cystic diseases of congenital origin and reactive lymphadenopathies. Owing to its high predictive value, FNAB represents a rapid and reliable method that can be commonly used in both adult and pediatric patients.


Turk Otolarengoloji Arsivi/Turkish Archives of Otolaryngology | 2015

The Role of PET-CT in Evaluation of Cervical Lymph Node Metastases in Oral Cavity Squamous Cell Carcinomas

Fatma Caylakli; Serkan Yilmaz; Cem Ozer; Mehmet Reyhan

Objective The aim of this study is to determine the sensitivity and specificity of positron emission tomography-computed tomography (PET-CT) in the evaluation of cervical lymph node metastasis in oral cavity squamous cell cancers (SCCs) and to determine the SUV-max values in differentiating reactive and metastatic lymph nodes as a supportive parameter. Methods In this study, 23 patients were included who were diagnosed with oral cavity SCC and treated with surgery between 2006 and 2013 in our department. All the patients were scanned with PET-CT during the pretreatment evaluation. Detailed pretreatment PET-CT (retention sites and SUV-max values) and histopathological examination results were obtained. SPSS 17.0 software package was used for statistical analysis of the data. Categorical measurement was summarized as number and percentage and continuous measurements as mean and standard deviation (median and minimum-maximum where necessary). Chi-square test or Fishers test were used in the comparison of categorical variables. Compliance of methods was assessed by Kappa coefficient analysis. In this study, the advantages of PET-CT were determined by the calculation of sensitivity and specificity values with histopathological examination results considered as the gold standard, and SUV-max value was assessed by examining the area under the ROC curve. In all tests, the level of statistical significance was accepted as 0.05. Results The threshold value for SUV-max depending on the data of the histopathological examination and results of PET-CT of the 23 patients was 2.50. The reliability of this threshold was determined as AUC=0.819. In demonstrating neck metastasis in patients with cancer of the oral cavity, PET-CT has a sensitivity of 89% and specificity of 98%. Compliance between the histopathological examination and PET-CT for metastatic cervical lymph nodes was determined to be 0.416 by kappa coefficient analysis. Conclusion There was FDG uptake on PET-CT in the cervical lymph node regions of all patients with metastatic cervical lymph nodes. There were no metastases in any of the patients with no FDG retention. The sensitivity and specificity of PET-CT in determining cervical lymph node metastasis were 89% and 98%, respectively, with a threshold SUV-max value considered as 2.50 in patients with FDG retention.


American Journal of Otolaryngology | 2007

A forgotten gauze pack in the nasopharynx: an unfortunate complication of adenotonsillectomy

Cem Ozer; Fulya Ozer; Mesut Sener; Haluk Yavuz


Journal of Laryngology and Otology | 2008

Quality of life after surgery for benign disease of the parotid gland.

Alper Nabi Erkan; Haluk Yavuz; Cem Ozer; Fulya Ozer; Levent N. Ozluoglu


Journal of Voice | 2015

Hoarseness in School-Aged Children and Effectiveness of Voice Therapy in International Classification of Functioning Framework

Özgül Akın Şenkal; Cem Ozer

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