Person: OYSU, ÇAĞATAY
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OYSU
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ÇAĞATAY
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Publication Metadata only Laryngeal Framework Surgical Anatomy: A Radiological Study(Mosby Inc., 2021) GÜNDOĞMUŞ, CEMAL AYDIN; Şahin A., Gündoğmuş C.A., Üçkuyulu E.İ., Oysu Ç., Enver N.Purpose: Awareness of variations in laryngeal anatomy among different age and gender groups is crucial during laryngeal framework surgery. The aim of this study is to demonstrate the relationship between gender and laryngeal radiologic morphometrics among different age groups and the applicability of important anatomical landmarks of laryngeal surgery. Methods: Laryngeal images of 180 adult patients older than 18 years of age were obtained by computed tomography and assessed. A total of 11 measurements of important laryngeal landmarks were taken from the patients’ computed tomography images. Results were subgrouped according to gender and age, and these groups were compared for each measurement. Results: The majority of laryngeal measurements obtained in the study were higher in males than females, with the exception of the interlaminar angle. The mean interlaminar angle value was 88.27°± 14.99 for males and 103.04°± 14.81 for females (P <0.005). The distance from the anterior commissure to the inferior border of the thyroid cartilage was 10.46 ± 2.5 mm for males and 7.72 ± 1.9 mm for females. The anterior commissure locates slightly higher than the midpoint of the distance from the thyroid notch to the thyroid inferior border. The shortest distance between the muscular process of the arytenoid cartilage and the thyroid cartilage was found to be 9.60 ± 3.47 mm for males and 7.72 ± 2.33 mm for females (P <0.001). Conclusion: Observation of obvious diversities in the size and distance of the important laryngeal structures between the gender groups is an important factor to be considered for successful laryngeal framework surgery. Also, using the midpoint of the thyroid cartilage as a landmark for anterior commissure is a practical method during surgery, especially for thyroplasty. © 2021 The Voice FoundationPublication Open Access Vocal fatigue in teachers and non-teachers in a Turkish population(2020-01-01) ENVER, NECATİ; OYSU, ÇAĞATAY; ENVER N., ŞAHİN A., Torğul A., Sürmeli M., OYSU Ç.Objectives: The aim of this study was to determine the voice use and associated vocal fatigue in teachers and to define their differences with other professional voice users and non-vocal non-professionals. Patients and Methods: Between May 2020 and October 2020, a total of 187 participants (41 males, 146 females; mean age: 32.6±10.5 years; range, 23 to 65 years) were administered the Vocal Fatigue Index (VFI) questionnaire. Of the participants, 93 were teachers and 94 were non-teachers recruited from Istanbul province of Turkey. The relationship between the VFI and sociodemographic characteristics, professional activity, talkativeness, duration of active vocal use, and active vocal complaints were analyzed. Results: The mean VFI score was 35.5±16.2. Those with a vocal complaint had significantly higher mean total VFI scores than those without any vocal complaints (p<0.001). Duration of voice use and total VFI scores were significantly higher in teachers than other professions (p<0.001 and p<0.001, respectively). The mean total VFI scores of teachers with or without vocal complaints did not significantly differ (p=0.065). Conclusion: Our study results suggest that voice disorders are more common among teachers, compared to non-professional voice users. It is important to reveal the etiology of voice problems in teachers, particularly for early diagnosis and immediate treatment.Publication Open Access Oncologic Results of Supracricoid Laryngectomy: Results From Two Tertitory Centers(2020-01-01) ENVER, NECATİ; YUMUŞAKHUYLU, ALİ CEMAL; OYSU, ÇAĞATAY; ENVER N., ŞAHİN A., YUMUŞAKHUYLU A. C. , ŞAHİN YILMAZ A. A. , OYSU Ç.INTRODUCTION: Larynx cancer is the second most frequent head and neck cancer and important cause of morbiditity and mortality. Supracricoid laryngectomy is one of the open partial laryngeal surgerical techniques which is an important tool for treatment of laryngeal cancer. The purpose of this study was to evaluate the oncological outcomes of laryngeal carcinoma patients treated with supracricoid laryngectomy. METHODS: A total of 47 cases were retrospectively analyzed from two tertiarian head and neck clinics with laryngeal carcinoma that underwent supracricoid laryngectomy from 2009 to 2019. Sociodemographic characteristics, histopathologic characteristics of tumor specimens, and survival analysis were assessed. RESULTS: Early stage laryngeal cancer was detected in 29 (61.7%) of the patients, and 20 (38.3%) of the patients had advanced laryngeal cancer. In 29 cases (61.7%) larynx cancer was located in glottis and lymph node involvement was found to be significantly less in cases with glottic location (p< 0.001). While 5-year overall survival was 74.5%, 5-year overall survival was 88.5% and 69.2% in early and advanced stage cases. DISCUSSION AND CONCLUSION: The two most important factors in the determination of successful treatment in treating laryngeal cancer are survival time and preserving laryngeal function. Supracricoid laryngectomy is one of the key tools used in treating laryngeal cancers. Through preserving a healthy larynx in appropriate patients, it is possible to provide permanent improvement while adhering to the surgical technique and oncological rules.Publication Metadata only Laryngeal inflammatory myofibroblastic tumor mimicking advanced stage malignancy(2020-01-01) ENVER, NECATİ; CİNEL, ZELİHA LEYLA; OYSU, ÇAĞATAY; Gönen A., ENVER N., İŞGÖR İ. Ş. , CİNEL Z. L. , OYSU Ç.Publication Open Access A single-center multidisciplinary study analyzing thyroid nodule risk stratification by comparing the thyroid imaging reporting and data system (TI-RADS) and American thyroid association (ATA) risk of malignancy for thyroid nodules(2022-01-01) ASYA, ORHAN; YUMUŞAKHUYLU, ALİ CEMAL; ENVER, NECATİ; İNCAZ, SEFA; GÜNDOĞMUŞ, CEMAL AYDIN; ERGELEN, RABİA; BAĞCI ÇULÇİ, PELİN; OYSU, ÇAĞATAY; ASYA O., YUMUŞAKHUYLU A. C. , ENVER N., Gündoğdu Y., Abuzaid G., İNCAZ S., GÜNDOĞMUŞ C. A. , ERGELEN R., Bağcı P., OYSU Ç.© 2022 Elsevier LtdObjectives: The thyroid imaging reporting and data system (TI-RADS) and 2015 American Thyroid Association (ATA) guidelines are two well-known risk stratification systems for classifying thyroid nodules based on cancer risk. This study aims to evaluate the diagnostic efficacy of these two systems in predicting malignancy in patients undergoing thyroid surgery. Methods: We studied data on 120 individuals who were scheduled to undergo surgery for benign or malignant nodular diseases of the thyroid gland between October 2017 and October 2019. The TI-RADS category and ultrasound pattern based on ATA guidelines were assigned to dominant thyroid nodule categories by two experienced radiologists blinded to patients’ previous thyroid ultrasonography and fine-needle aspiration biopsy results. A pathologist with experience in thyroid diseases blinded to patients’ sonographic and clinical data reviewed the thyroidectomy specimens. Results: A total of 120 patients, 88 women and 32 men, were included in our study. Final histopathological results were as follows: 50% (n=60) papillary thyroid carcinoma, 36.6% (n=44) benign nodular thyroid diseases, 4.1% (n=5) follicular adenoma, 2.5% (n=3) hurtle cell adenoma, 1.7% (n=2) follicular thyroid carcinoma, 1.7% (n=2) medullary thyroid carcinoma, 1.7% (n=2) hurtle cell carcinoma, and 1.7% (n=2) follicular tumor of uncertain malignancy potential. The sensitivity, specificity, positive predictive value, and negative predictive value for TI-RADS were 80%, 56%, 72%, and 67%, respectively, and that for ATA were 80%, 64%, 76%, and 69%, respectively. Conclusion: The TI-RADS and ATA showed similar rates of sensitivity, specificity, NPV, and PPV. Our observed risk of malignancy was higher than expected for the ACR TI-RADS 3–5 categories and the very low, low, and intermediate suspicion risk strata in the ATA guidelines. We found no difference between observed and expected malignancy risk for the ACR TI-RADS 2’s and ATA\"s high suspicion categories.