34 results on '"Onur YÜKSEL"'
Search Results
2. Suprapubic bladder aspiration: A novel method in the diagnosis of retrograde ejaculation
- Author
-
Hakkı, Uzun, Nezih, Akça, Merve, Hüner, Berat, Sönmez, Ahmet Onur, Yüksel, and Yusuf Önder, Özsağır
- Subjects
Adult ,Male ,Semen Analysis ,Young Adult ,Adolescent ,Reproductive Medicine ,Semen ,Urology ,Urinary Bladder ,Humans ,Ejaculation ,Middle Aged ,Spermatozoa - Abstract
To investigate the role of suprapubic bladder aspiration (SBA) in the diagnosis of retrograde ejaculation (RE) which is diagnosed with the observation of sperm in post-ejaculatory urine (PEU). However, sperm is also observed in PEU after the wash out of the retained ejaculate in the urethra with the expulsion of urine in several subjects. Therefore, detection of sperm in PEU in the diagnosis of RE is problematic and a better method is needed to overcome the ambiguity of positive PEU and to identify which patient experience true RE.A cohort of patients underwent an examination for RE over a two-year period at a single specialist centre. All patients underwent SBA and semen analysis. Sperm was investigated in urine aspirated from the bladder and in PEU.Thirty-two patients (age range 18-62 years) underwent SBA and PEU for investigation of RE. Sperm was detected both in SBA and PEU in 19 patients, while 5 patients revealed sperm only in PEU. The mean number of sperm found in SBA was less than the mean number of sperm observed in PEU in all 19 patients.SBA is a reliable and feasible method in the diagnosis of RE and can distinguish the true RE in which sperm flows backward into the bladder from the retained ejaculate in the urethra. The whole ejaculate does not likely flow retrogradely and RE could be a partial leakage of the ejaculate into the bladder.
- Published
- 2022
- Full Text
- View/download PDF
3. Kruvaziyer ve Ro-Ro gemilerinde organik Rankine çevrimi sistemi kullanımının liman sahaları üzerindeki çevresel etkileri
- Author
-
Olgun KONUR, Onur YÜKSEL, and Süleyman Aykut KORKMAZ
- Subjects
Denizcilik ,Organik Rankine çevrimi ,Marine Science ,Liman çevresi ,Gemi makineleri işletme mühendisliği ,Karbon salımı,Organik Rankine çevrimi,gemi makineleri işletme mühendisliği,liman çevresi ,Karbon salımı - Abstract
Bu çalışmanın amacı, çevreci bir teknoloji olan ORC sistemlerinin örnek olarak ele alınan bir kruvaziyer ve Ro-Ro gemisinde kullanımının liman sahaları üzerindeki potansiyel çevresel etkilerini ortaya koymaktır. Bu kapsamda 2017 yılı içerisinde Çeşme Limanı’na giriş-çıkış yapan bir yolcu gemisi ile bir Ro-Ro gemisinin ayrılma ve yanaşma sırasındaki manevra süreleri ile limanda kaldıkları süreler ele alınarak, gemilerin liman içerisindeki bir yıllık toplam yakıt tüketimleri hesaplanmıştır. Literatürde yer alan, termal verim değeri valide edilmiş bir gemi ORC sistemi ele alınarak, atık ısı geri kazanımı ile kazanılabilecek potansiyel yakıt tasarrufu ve egzoz salımlarındaki azalma miktarları hesaplanmıştır. Buna göre, manevra sürecine kıyasla, CO2 salımının kruvaziyer gemisi için %73,56’sı, Ro-Ro gemisi için %84,60’ı liman sürecinde gerçekleşmiştir. ORC sistemlerinin kurulumu ile liman sahası içerisindeki operasyonlardan kaynaklı yakıt tüketiminden iki gemi için toplamda bir yılda 107,77 MT ve buna bağlı olarak tüm salımlardan yıllık olarak %12,33 oranında tasarruf elde edilebileceği sonucu ortaya çıkmıştır., The aim of this study is to reveal the potential environmental effects of the utilization of ORC systems on a reference cruise and Ro-Ro ships on port areas. In this context, the one-year total fuel consumption of the ships in the port was calculated by considering the time spent on manoeuvrings during departure and berthing and the time they stayed in the port while entering and leaving Çeşme Port in 2017. A marine ORC system with a validated thermal efficiency value in the literature is taken into consideration for calculating the potential fuel savings and reduction in exhaust gas emissions that can be gained by waste heat recovery. Accordingly, 73.56% of the CO2 emissions for the cruise ship and 84.60% for the Ro-Ro ship occurred during the port stays when compared to the maneuvering periods. It is concluded that a total of 107.77 MT of fuel consumption and accordingly 12.33% of all emissions caused by the operations of the two ships in the port area can be saved annually with the installation of ORC systems onboard.
- Published
- 2022
- Full Text
- View/download PDF
4. Karadeniz Ereğli Liman Bölgesindeki Sıvı Dökme Yük Taşıyıcılarının Yakıt Tüketimi ve Ortaya Çıkan Emisyonlarının Hesaplanması
- Author
-
Onur Yüksel
- Published
- 2022
- Full Text
- View/download PDF
5. Analysis of the nuclear energy systems as an alternative propulsion system option on commercial marine vessels by utilizing the SWOT-AHP method
- Author
-
Murat Bayraktar and Onur Yüksel
- Subjects
Nuclear and High Energy Physics ,Nuclear Energy and Engineering ,Mechanical Engineering ,General Materials Science ,Safety, Risk, Reliability and Quality ,Waste Management and Disposal - Published
- 2023
- Full Text
- View/download PDF
6. The geological–geochemical characteristics of the Binbir Church (Karaman, Turkey) archaeological site and the alteration of the rocks used in the buildings
- Author
-
Bilgehan Yabgu Horasan, Onur Yüksel, and Alican Öztürk
- Subjects
Global and Planetary Change ,Soil Science ,Environmental Chemistry ,Geology ,Pollution ,Earth-Surface Processes ,Water Science and Technology - Published
- 2022
- Full Text
- View/download PDF
7. ZAMAN YÖNETİMİ: SAĞLIK HİZMETLERİ MESLEK YÜKSEKOKULU ÖĞRENCİLERİ ÜZERİNE BİR ARAŞTIRMA
- Author
-
Onur Yüksel
- Published
- 2021
- Full Text
- View/download PDF
8. The Mediating Role of Organizational Identification in the Effect of Servant Leadership Perception of the Hospital Employees on Their Turnover Intention
- Author
-
Mesut Çimen, Serkan Deniz, and Onur Yüksel
- Published
- 2021
- Full Text
- View/download PDF
9. Çoklu İntrakraniyal Anevrizmalarda Prognozda Etkili Faktörler
- Author
-
Tezcan Caliskan, Mehmet Sabri Gürbüz, Mehmet Zafer Berkman, and Mehmet Onur Yüksel
- Subjects
business.industry ,Medicine ,business - Published
- 2020
- Full Text
- View/download PDF
10. THE EFFECT OF RESILIENCE ON THE JOB STRESS: A STUDY ON HOSPITAL EMPLOYEES
- Author
-
Mesut Çimen, Onur Yüksel, and Serkan Deniz
- Subjects
Health Policy and Services ,Resilience,Job Stress,Hospital ,General Engineering ,Sağlık Politikaları ve Hizmetleri ,Psikolojik Sağlamlık,İş Stresi,Hastane - Abstract
Amaç: Bireyler yaşamları boyunca birçok olumsuzlukla karşı karşıya kalabilmektedirler. Bireylerin psikolojik sağlamlık düzeylerinin yüksek olması bu olumsuzluklarla daha kolay mücadele edebilmesini sağlamaktadır. Bireylerin psikolojik sağlamlık düzeylerinin yüksek olması çalışma hayatı için de önemli bir avantajdır ve çalışanlara birçok konuda fayda sağlamaktadır. Psikolojik sağlamlığın sağladığı faydalardan biri de çalışanların iş stresini azaltmasıdır. Bu çalışma ile hastane çalışanlarının psikolojik sağlamlıkları ve iş stresi düzeylerinin demografik özelliklere göre farklılık gösterip göstermediğinin; ayrıca psikolojik sağlamlık ile iş stresi düzeyleri arasındaki ilişkinin belirlenmesi amaçlanmıştır. Yöntem: Araştırma Ocak 2020 – Mayıs 2020 aylarında İstanbul’da gerçekleştirilmiştir. Araştırma verileri İstanbul’da faaliyet gösteren özel hastanelerde çalışan bireylerden toplanmıştır. Araştırma verileri anket yöntemi ile toplanmıştır. Araştırma kapsamında 391 anket formu toplanmıştır. Bulgular: Araştırma ile katılımcıların psikolojik sağlamlık ve iş stresi düzeylerinin orta düzeyde olduğu belirlenmiştir. Katılımcıların yaşına, eğitim durumuna ve hastanedeki çalışma süresine göre psikolojik sağlamlık ve iş stresi düzeylerinin istatistiksel olarak farklılık göstermediği belirlenmiştir. Ancak katılımcıların cinsiyetine ve hastanedeki görevine psikolojik sağlamlık ve iş stresi düzeylerinin istatistiksel olarak farklılık gösterdiği belirlenmiştir. Araştırma sonuçlarına göre psikolojik sağlamlık ile iş stresi arasında istatistiksel olarak anlamlı, negatif yönlü ve orta düzeyde bir ilişkinin olduğu belirlenmiştir. Ayrıca psikolojik sağlamlığın iş stresini negatif yönde etkilediği belirlenmiştir.Sonuç: Bu araştırmanın sonuçları psikolojik sağlamlığın iş stresinin bir belirleyicisi olduğunu göstermektedir. Araştırma sonuçları çerçevesinde çalışanların psikolojik sağlamlıklarının arttırılması ve iş streslerinin azaltılması için hastane yönetimlerinin bazı çalışmalar yapması önerilmektedir., In this study, it is aimed to determine whether the resilience and job stress levels of hospital employees differ in line with the demographic characteristics; and to determine the relationship between resilience and job stress levels. Method: This research was performed in Istanbul between January 2020 and May 2020. The data of this research was collected from individuals who work in private hospitals in Istanbul through survey method. The survey form of this research consists of three parts. In the first part of the survey form, there are questions for determining the demographic characteristics of the participants. In the second part, there are some questions for determining the resilience level of the participants through the Brief Resilience Scale which was developed by Smith et al. (2008). This is a single dimension scale with 6 items. The validity and reliability of the scale for Turkish language was proved by Doğan (2015). In the third part, there are questions for determining the level of job stress of the participants; in this section, the "Job Stress Scale" was used which is a study of House and Rizzo (1972) as adapted into Turkish by Ergün and Çelik's (2015). This is a single dimension scale with 7 items. The Turkish form of the scale is used which was adopted in the study of Ergün and Yüksel (2019). Questions in the scales were measured with 5 point Likert type scale options (1 = Strongly Disagree, 5 = Strongly Agree). 391 survey forms were filled within the scope of research. SPSS 22.0 statistics software was used for the analysis of the data. The descriptive statistics were calculated in order to determine the resilience and job stress levels of the participants. In order to compare resilience and job stress levels by considering the demographic characteristics; independent samples t-test was used to compare two independent groups, and one-way analysis of variance (one-way ANOVA) analyzes were applied in order to compare more than two independent groups. The correlation and regression analysis were also applied in order to determine the determinant between participants' resilience and job stress levels. Findings: In the research, it is determined that resilience (3.40 ± 0.65) and job stress levels (2.61 ± 0.82) of the participants were at a moderate level. It was found that the resilience and job stress levels of the participants do not differ statistically in terms of their age, education level, and working time in the current hospital (p>0.05). However, it was found that the resilience and job stress levels of the participants differ statistically in terms of their gender and the task of the hospital (p
- Published
- 2020
- Full Text
- View/download PDF
11. Risk assessment of the Ship steering gear failures using fuzzy-Bayesian networks
- Author
-
Burak Göksu, Onur Yüksel, and Cenk Şakar
- Subjects
Environmental Engineering ,Ocean Engineering - Abstract
Accidents caused by steering gear malfunctions, especially during port berthing maneuvers, the strait, and canal crossings, can lead to hazardous consequences on the environment and human life. This study aims to provide the risk evaluation and investigation of the root causes of the steering gear failures on board using Fuzzy Bayesian Networks. To determine the effects of root causes on steering gear failures, the Bayesian Network was built in the NETICA software. Running several scenarios on the network are ensured the investigation of how the root reasons affect the problem. Prior and conditional probabilities obtained from meetings and interviews with six different experts were used to apply Bayesian inference. Sensitivity analysis, forward propagation analysis by applying the best- and worst-case scenarios, and validation of the network were conducted. Results depicted that the functionality of the electrical and mechanical line components is essential to preventing the breakdown of the steering gear system. The most significant contributor to component-related electrical failures is loose or corroded wiring and connections, whereas hydraulic oil-sourced errors have a significant impact on equipment wear and malfunction. The probability of a steering gear accident is assessed to be 13.7% under the best-case scenario and 79.1% in the worst-case scenario.
- Published
- 2023
- Full Text
- View/download PDF
12. Örnek Bir Marina Bölgesinde Yatlardan Kaynaklı Ortalama Salım Miktarlarının Hesaplanması
- Author
-
Onur YÜKSEL, Süleyman Aykut KORKMAZ, Olgun KONUR, and Barbaros Hayrettin Gemi İnşaatı ve Denizcilik Fakültesi
- Subjects
Emission ,Yakıt tüketimi ,Emisyon ,Denizcilik ,Fuel consumption ,Marine engineering ,Marine Science ,Gemi makineleri işletme mühendisliği ,Emisyon,yakıt tüketimi,marina,gemi makineleri işletme mühendisliği ,Marina - Abstract
Bu çalışmanın amacı, IC Çeşme Marina içerisindeki yatların yanaşma ve kalkış manevraları sırasında ortaya çıkan karbon salım miktarlarını hesaplamayı amaçlamaktadır. Bu çalışmayı gerçekleştirmek için Çeşme marinadan yatların bir yıllık giriş-çıkış verileri, boyut ve makine bilgileri alınmıştır. Marinada yatların 3 knot hızla giriş çıkış kuralına uydukları varsayılmış, buna göre yakıt tüketimleri, makine yükü ve salım hesaplamaları yapılmıştır. Liman sahasından çıktıktan sonra da MCR’de gittikleri kabulü yapılmıştır. Ayrıca teorik hesaplar Çeşme marinadaki 3 millik alanı kapsayacak şekilde gerçekleştirilmiştir. 2017 yılı içerisinde yatların Çeşme marinada yaptıkları CO2 gazı salım miktarı hesaplanmış ve sonuç bölümünde bu miktarı azaltmak için yapılabilecek çalışmalara değinilmiştir. Hesaplar yapılırken 1,2 km’lik alan marina sahası olarak alınmış, geri kalan 4,3 km ise açık deniz bölgesi olarak adlandırılmıştır. Marina sahasında 6423,69 kg, açık denizde 10352,24 kg olmak üzere toplam 16775,94 kg ortalama karbon salımı gerçekleştiği hesaplanmıştır. Bu çalışma, Çeşme marina sahası içerisindeki yatlardan kaynaklanan egzoz salım envanterini ortaya koymaktadır. Salım değerlerinin düşürülebilmesi için yatlarda yenilenebilir enerji kullanımının yaygınlaşması gerekliliği gösterilmiştir.
- Published
- 2022
13. The Impact of Various Breast Sizes of Women on Vertebral Column and Spinopelvic Parameters
- Author
-
Birol Topçu, Sibel Özkan Gürdal, Mehmet Onur Yüksel, Tamer Tunçkale, and Tezcan Caliskan
- Subjects
Pelvic tilt ,BGB: Breast Group B ,Sacrum ,BMI: Body Mass Index ,Visual analogue scale ,Scoliosis ,Body Mass Index ,Pelvis ,COG: Centre of Gravity ,Back pain ,Sagittal Balance ,Medicine ,BGA: Breast Group A ,Humans ,Kyphosis ,ODI: Oswestry Disability Index ,Orthodontics ,Lumbar Vertebrae ,business.industry ,Breast Volume ,VAS: Visual Analogue Scale ,medicine.disease ,Spine ,Oswestry Disability Index ,medicine.anatomical_structure ,Lordosis ,Quality of Life ,Surgery ,Female ,Neurology (clinical) ,medicine.symptom ,business ,TNKU: Tekirdağ Namık Kemal University ,Body mass index ,Vertebral column - Abstract
AIM: To find out the anatomical changes in spine and pelvis, and the impact of various breast size-4-x display--inline-block" style="background: var(--highlight-yellow); color: inherit;">sizes of women on the quality of life. MATERIAL and METHODS: Sixty women with back pain volunteered to participate in this study. Their body mass index (BMI) was calculated. Clinical evaluation of the pain was assessed using the Oswestry Disability Index and visual analogue scale. Breast volumes were measured using the Grossman Rounder device. Scoliosis radiograms were obtained, and the cervical lordosis, thoracic kyphosis, lumbar lordosis, sacral slope, pelvic incidence and pelvic tilt angles were measured in patients. The relationship between the increasing breast size and BMI was investigated through all these parameters. RESULTS: Increase in breast size positively changes the sagittal balance (r=0.356, p=0.005) and increases cervical lordosis (r=0.300, p=0.020). Increase in BMI leads to a positive sagittal balance (r=0.329, p=0.010) and increases the pelvic tilt (r=0.460, p=0.000). In patients with a positive sagittal balance, the sacral slope (r=-0.350, p=0.006) and the lumbar lordosis angle decrease (r=-0.552, p=0.000), whereas the pelvic tilt increases (r=0.298, p=0.021). CONCLUSION: Macromastia has an impact on cervical lordosis and sagittal balance, while indirectly impacting the pelvic tilt rather than the thoracic kyphosis and lumbar lordosis.
- Published
- 2021
14. Sağlıkta Son Trendler
- Author
-
Tahir Öztürk, Can Yücelsen, Ali Akpek, Mehmet Boz, Berna Dilbaz, Sema Demirlenk, Hacer Boztepe Yeşilçay, Hakan Yılmaz, Saim Türkoğlu, Dursun Türköz, Ferhat Yaylacı, Yusuf Ziya Şener, Murat Yücel, Muhammet Korkusuz, Hüseyin Avni Demir, Özlem Önen, Yasin Çalışkan, Mustafa Kütük, Gökhan Özmen, Mustafa Behram, Fatih Özçelik, Murat Serkant Ünal, Ümmihan Topal, Mahmut Taha Ölçücü, Tayfun Et, Berivan Cecen, Selim Safalı, Arif Savaş, Ayşe Neslihan Balkaya, Barış Erdoğan, Ahmet Akif Kızılkurtlu, Ahmet Yurteri, Neslihan Çelik, Deniz Yaman, Aslıhan Alp Öztürk, Merve İşcan Yapar, Denizhan Karış, Çisel Yazgan, Yasin Aktaş, Serdar Çakır, Hüseyin Çayören, Can Özlü, Şencan Akdağ, Gökhan Ceylan, Burak Mete, Faruk Tonga, Zehra Yavuz, Gazi Göktuğ Ceylan, Abubekir Böyük, Sami Açar, Mehmet Onur Yüksel, Ramazan Gündüz, Burak Bayraktar, Eda Çetin, Mehmet Erhan Aydın, Müjde Can İbanoğlu, Ertuğrul Pınar, Emel Sağlam, Bülent Barış Güven, Ali Dablan, Sinem Gökçe Kütük, and Tülin Gesoğlu
- Abstract
Her seyden once size tesekkur etmek istiyorum, bilgi caginda, bilgiden yoksun, bilgiden uzak isini yapadurmak yerine, saglik alanindaki inovasyon, teknoloji ve yapay zeka kulvarlarindaki merakiniz ve hekimseniz hastaniza en dogru taniyi koyup, en dogru tedaviyi vermek gayesi yada alan uzmani iseniz de bu alanlarda gelisime inanarak okumayi sectiginiz, konfor alaninizi bozmayi kabul ettiginiz icin.Bu kitapta sagligimizin geleceginin buyuk bir kismini olusturacak olan, sagligin son trendlerini sunduk. Gelecegin hekimlik ve saglik anlayisindaki son gelismeleri, literatur destegi ile bilimin getirdigi sarsici etkiler ve gelecek perspektifini en guncel bilgiler isiginda bu kitapta bulacaksiniz.
- Published
- 2021
- Full Text
- View/download PDF
15. Hücresel Tıp ve Medikal Biyoteknoloji Uygulamaları
- Author
-
Siğnem Eyuboğlu, Dilek Yonar, Hilal Akköprü, İkbal Cansu Barış, Tezcan Caliskan, Ayça Bal Öztürk, Nilüfer Köylüoğlu, Hayrunnisa Kaya, Aysun Özlü, Pelin Telkoparan Akıllılar, Eren Yıldız, Mehmet Ali Gedik, Cafer Ak, Muhammed Semih Gedik, Hilmi Sefa Yangal, İdil Karaca Açarı, Selman Gencer, Mehmet Onur Yüksel, Derya Yaman, Serpil Ergülü Eşmen, Dilara Devranoğlu, Emine Alarçin, Osman Sezer Çınaroğlu, Can Özlü, Semahat Karahisar Şirali, and Sami Benli
- Published
- 2021
- Full Text
- View/download PDF
16. Large schwannoma of the deep peroneal nerve: A case report
- Author
-
Mehmet Onur Yüksel, Asli Cakir, Baris Erdogan, and Taner Engin
- Subjects
Adult ,medicine.medical_specialty ,Schwannoma ,Tinel sign ,Pain ,Complete resection ,Malignant transformation ,Female patient ,otorhinolaryngologic diseases ,Humans ,Medicine ,Edema ,Peripheral Nerves ,Deep peroneal nerve ,medicine.diagnostic_test ,business.industry ,Peroneal Nerve ,Magnetic resonance imaging ,medicine.disease ,Magnetic Resonance Imaging ,Peripheral ,Female ,Surgery ,Neurology (clinical) ,Radiology ,business ,Neurilemmoma - Abstract
AIM Schwannomas are the most common benign tumors of the peripheral nerve. Surgery is indicated in patients with progressively increasing tumor volume, pain, paresthesia, and progressively worsening neurological deficits. CASE DESCRIPTION This article presents the case of a 32-year-old female patient with schwannoma. The patient had swelling on the anterior aspect of her right foot for a year. Her pain increased over the past 2 months, and a positive Tinel sign was present over the swelling. Magnetic resonance imaging revealed a large schwannoma mass in the deep peroneal nerve. The patient's large schwannoma was completely excised along with its capsule. CONCLUSION Schwannomas are benign tumors of the peripheral nerves that rarely exhibit malignant transformation. Treatment is considered to be curative if complete resection is achieved.
- Published
- 2021
17. Sağlık Çalışanlarına Yönelik Şiddetin Nedenlerinin Belirlenmesine İlişkin Bir Araştırma
- Author
-
Onur Yüksel and Serkan Deniz
- Subjects
General Medicine - Published
- 2020
- Full Text
- View/download PDF
18. SAĞLIK TÜKETİCİLERİNİN KURUMSAL İMAJ ALGISI İLE HASTANE BAĞLILIĞI ARASINDAKİ İLİŞKİNİN BELİRLENMESİNE YÖNELİK BİR ARAŞTIRMA
- Author
-
Onur Yüksel and Serkan Deniz
- Subjects
Kurumsal Ġmaj,Bağlılık,Sadakat,Sağlık,Hastane ,General Medicine - Abstract
Bir örgütün toplum ve paydaĢları tarafından nasıl görüldüğünü yansıtan kurumsal imaj, toplumun ve paydaĢların örgüte iliĢkin davranıĢları, tutumları ve kararları ile iliĢki halindedir. Bireylerin hatta devletlerin bile çok önemsediği sağlık konusunda da tüketicilerin birçok davranıĢı, tutumu ve kararı kurumsal imaj algısı ile iliĢki halindedir. Bu çalıĢma ile sağlık tüketicilerinin kurumsal imaj algısı ile hastane bağlılığı arasındaki iliĢkinin özel hastaneler açısından ortaya konulması amaçlanmıĢtır. AraĢtırma, Eylül 2018’de Ġstanbul’da gerçekleĢtirilmiĢtir. AraĢtırma verileri Ġstanbul’da ikamet eden ve 18 yaĢını doldurmuĢ bireylerden toplanmıĢtır. AraĢtırmada veri toplamak için anket yöntemi kullanılmıĢ ve geçerli olan 386 adet anket formu değerlendirilmeye alınmıĢtır. Yapılan analizlerde tanımlayıcı istatistikler hesaplanmıĢ ve Spearman's korelasyon analizi yapılmıĢtır. AraĢtırma sonuçlarına göre, kurumsal imaj algısı ile hastane bağlılığı arasında istatistiksel olarak anlamlı, pozitif yönlü ve yüksek düzeyde iliĢki olduğu belirlenmiĢtir. Yine araĢtırma sonuçlarına göre, katılımcıların kurumsal imaj algısının olumlu olduğu, hastane bağlılığı düzeyinin ise, orta düzeyde olduğu belirlenmiĢtir. Kurumsal imaj algısının sağlık tüketicilerinin hastane bağlılığı ile olan iliĢkisi ve olumlu kurumsal imaj algısının hastanelere sağladığı faydalar dikkate alındığında, kurumsal imaj algısının olumlu olabilmesi için hastane yönetimlerinin, hastanenin fiziki koĢullarda ve görünümünde iyileĢtirmeler yapmak, çalıĢanların kurumu en iyi Ģekilde temsil etmesini sağlamak, kaliteli hizmet sunmak, sosyal sorumluluk faaliyetlerini yerine getirmek, sosyal medya platformlardaki paylaĢımları ve basını takip etmek, paydaĢları ve kamuoyunu bilgilendirmek, yaĢanan mağduriyetlere hızlı bir Ģekilde müdahale etmek gibi çalıĢmalarda bulunması önerilmektedir.
- Published
- 2018
- Full Text
- View/download PDF
19. HASTANE ÇALIŞANLARININ ÇALIŞMA YAŞAM KALİTESİ ALGISINA YÖNELİK BİR ARAŞTIRMA
- Author
-
Mesut Çimen, Beyza Erkoç, Metin Öksüz, Onur Yüksel, and Serkan Deniz
- Subjects
Gynecology ,medicine.medical_specialty ,Philosophy ,General Engineering ,medicine ,Quality of work life - Abstract
Amaç: Bu çalışma ile hastane çalışanlarının çalışma yaşam kalitesi algı düzeyinin ve bu algı düzeyinin demografik özelliklere göre farklılaşıp farklılaşmadığının ortaya konulması amaçlanmıştır. Yöntem: Araştırma, Nisan 2018’de Yalova’da hizmet sunan özel bir hastanede ve bağlı kuruluşlarında gerçekleştirilmiştir. Araştırmada veri toplamak için anket yöntemi kullanılmıştır. Çalışma yaşam kalitesine ilişkin katılımcıların algı düzeyini belirlemek için, Chinomona ve Dhurup’un (2014), Donaldson vd.’nin (1999) çalışmasından uyarlamış oldukları ölçek kullanılmıştır. Araştırma kapsamında 229 adet anket formu toplanmıştır. Bulgular: Araştırma ile katılımcıların çalışma yaşam kalitesi algısının genel olarak olumlu olduğu belirlenmiştir. Yine araştırma ile çalışma yaşam kalitesi algı düzeyinin katılımcıların cinsiyetine, yaşına, eğitim durumuna, medeni durumuna ve hastanedeki çalışma süresine göre istatistiksel olarak farklılık göstermediği; ancak görevine göre farklılık gösterdiği belirlenmiştir. Sonuç: Çalışma yaşam kalitesinin çalışanlar, kurumlar, hastalar ve diğer paydaşlar açısından birçok konuya etki ettiği düşünüldüğünde, çalışma yaşam kalitesi algı düzeyinin olumlu çıkması hastaneler açısından istenilen bir durumdur. Bu durumun sürdürülebilir ve daha da iyi olabilmesi için, hastane yönetimlerinin çalışma yaşam kalitesine yönelik çalışmalar yapması ve gerekli hallerde iyileştirmeler yapması önerilmektedir.
- Published
- 2018
- Full Text
- View/download PDF
20. Evaluation of Surgical Results of Peroneal Nerve Injury Due to Traumatic and Non-Traumatic Causes
- Author
-
Serdar Çevik and Mehmet Onur Yüksel
- Published
- 2020
- Full Text
- View/download PDF
21. The Effectiveness of the Amount of Polymethylmethacrylate In The Treatment of Osteoporotic Compression Fracture of The Lumbar Vertebrae
- Author
-
Serdar Çevik, Şevket Ervan, Tamer Tunçkale, Baris Erdogan, Mehmet Onur Yüksel, Tezcan Caliskan, and Salim Katar
- Subjects
Orthodontics ,medicine.anatomical_structure ,business.industry ,Fracture (geology) ,Medicine ,General Medicine ,Lumbar vertebrae ,business ,Compression (physics) - Abstract
Objective: We aimed to investigate the effectiveness of the amount of polymethylmethacrylate used in pain control and maintenance of long-term vertebra corpus height in patients undergoing percutaneous vertebroplasty due to osteoporotic compression fracture of the lumbar vertebra. Method: A total of 60 patients who underwent unilateral percutaneous vertebroplasty between 2014 and 2019 due to osteoporotic compression fracture of the lumbar vertebrae were included in the study. Patients who received 5 ml and 3 ml cement injection were retrospectively analyzed. Of patients, postoperative visual analogue scale (VAS) score and anterior vertebral height of the patients at 1st-year control were evaluated. Results: In the postoperative period, the mean visual analogue scale score was 2.3±0.46 in the 5 ml injected group and 2.2±0.4 in the 3 ml injected group (p5 ml=0.001, p3 ml= 0.001). There was a statistically significant decline in pain control in both groups. The mean anterior vertebral height loss (AVHL) in the 5 ml injected group was 31.5±0.40%, and 32.6±0.47% in the 3 ml injected group (p5 ml=0.820, p3ml= 0.870). There was no statistically significant alteration in both groups. Conclusion: Our results indicate that the 3 ml polymethylmethacrylate injection during the percutaneous vertebroplasty procedure provides adequate pain control and stabilization in patients with lumbar vertebral osteoporotic fracture. Therefore we think that small amount of polymethylmethacrylate (3 ml) is sufficient to avoid undesirable complications in this patient group.
- Published
- 2020
- Full Text
- View/download PDF
22. Postoperative acute subdural hematoma in patients with chronic subdural hematoma due to antithrombotic therapy
- Author
-
Salim Katar, Serdar Çevik, Sevket Evran, Tezcan Caliskan, Baris Erdogan, Mehmet Onur Yüksel, Semra Isik, and Tamer Tunçkale
- Subjects
medicine.medical_specialty ,Medication history ,medicine.diagnostic_test ,medicine.drug_class ,business.industry ,medicine.medical_treatment ,Medical record ,Anticoagulant ,Neurological examination ,Retrospective cohort study ,Surgery ,Head trauma ,Antithrombotic ,medicine ,Neurology (clinical) ,business ,Craniotomy - Abstract
Aim To evaluate the relationship between the time from termination of anticoagulant/antiplatelet medication to surgery and the risk of acute postoperative hemorrhage in CSDH patients. Material and methods A retrospective study of patients who underwent bur hole craniotomy for CSDH between December 2014 and December 2019 was performed. Demographic and clinical data of age, gender, medication (antithrombotic therapy), smoking, daily alcohol consumption, history of head trauma, presenting symptoms and neurological examination were collected from medical records. Patients were divided into 3 groups according to the time of surgery from referral; 1st group: within 24 hours; 2nd group: between 24 to 72 hours; 3rd group: after 72 hours. Results In the 5-year period, 117 patients underwent CSDH surgery. 72 of 117 patients were male (61.5%) and 45 of 117 patients were female (38.5%). The mean age was 70.5 ± 7.2 years. Postoperative ASDH was observed in 2 of 32 patients (6.3%) without any antithrombotic medication history and 6 of 85 patients (7.1%) with previous antithrombotic medication history. Preoperative antithrombotic drug usage was not statistically significant in terms of acute complication development (p = 0.797). Conclusion In this study, we found that the risk of acute hemorrhage due to antithrombotic medication did not differ from those who were not under the medication. Although it is reported in the literature that antiaggregant and anticoagulant drugs should be discontinued between 5 and 7 days before the surgical procedure, our results showed that acute hemorrhage was not detected in any of the patients operated 72 hours after referral.
- Published
- 2020
- Full Text
- View/download PDF
23. Investigation of the improvement rate regarding the herniation of cerebellar tonsils following shunting procedures in patients with chiari malformation and associated hydrocephalus
- Author
-
Mehmet Onur Yüksel, Salim Katar, and Tıp Fakültesi
- Subjects
congenital, hereditary, and neonatal diseases and abnormalities ,medicine.medical_specialty ,business.industry ,medicine.disease ,Ventriculoperitoneal Shunt ,nervous system diseases ,Hydrocephalus ,Surgery ,Shunting ,Tonsillary Herniation ,Improvement rate ,embryonic structures ,Medicine ,chiari malformation,tonsillary herniation,ventriculoperitoneal shunt ,In patient ,Chiari Malformation ,business ,Chiari malformation - Abstract
Katar, Salim (Balikesir Author), Introduction and Aim: Chiari malformation is a congenital anomaly formed as the result of the herniation of posterior fossa structures through the foramen magnum toward the spinal canal. In this study, we aimed to present the improvement rate regarding the herniation in cerebellar tonsils following shunting procedures in patients with Chiari malformation and associated hydrocephalus. Method: We measured in mm the improvement rate regarding the herniation in cerebellar tonsils in postoperative cervical MRI images obtained following ventriculoperitoneal shunting procedures for hydrocephalus in adult patients with symptoms of Chiari malformation such as balance disorder, dizziness, numbness and loss of muscular strength at the hands who were diagnosed with Chiari malformation and hydrocephalus following cranial and cervical magnetic resonance imaging (MRI). Results: A total of fifteen adult patients in whom the cerebellar tonsillar herniation was over 5 mm and accompanied by hydrocephalus were included in our study. The measure of herniation in the patients involved in the study was between 1.11 cm and 8 mm. The amount of improvement in herniation following the shunting procedure was between 7.76 mm and 2.2 mm. Conclusion: In patients with Chiari malformation associated with hydrocephalus, cerebellar tonsillar herniation can regress to 5 mm, which is considered as physiological, and the symptoms related to Chiari malformation can disappear. When Chiari malformation is associated with hydrocephalus, the tonsillar herniation may improve, and symptoms may disappear following the ventriculoperitoneal shunting procedure for hydrocephalus without necessitating posterior decompression for Chiari-related herniation.
- Published
- 2020
24. The Effect of Time Elapsed from the Onset of Symptoms to Surgery on Prognosis in Patients with Foot Drop due to Lumbar Disc Hernia
- Author
-
Mehmet Onur YÜKSEL and Serdar ÇEVİK
- Subjects
lcsh:R5-920 ,lcsh:R ,cerrahi ,lcsh:Medicine ,foot drop ,Tıp ,surgery ,lumbar disc hernia ,Düşük ayak,lomber disk hernisi,cerrahi,prognoz ,prognoz ,lomber disk hernisi ,Medicine ,düşük ayak ,prognosis ,Foot drop,lumbar disc hernia,surgery,prognosis ,lcsh:Medicine (General) - Abstract
Amaç: Bu çalışmanın amacı, düşük ayak gelişiminden sinir dekompresyonuna kadar geçen sürenin düşük ayak kliniğinde iyileşme oranı ve derecesi üzerine olan etkilerini değerlendirmektir.Gereç ve Yöntemler: Nisan 2014 ve Şubat 2019 arasında düşük ayak kliniği (ayak bileği dorsifleksiyonu 0/5 parazik) nedeniyle mikrodiskektomi geçirmiş olan ardışık 30 hasta retrospektif olarak incelendi. Hastalar düşük ayak gelişiminden ameliyata kadar geçen süreye göre 1 hafta olmak üzere göre 3 gruba ayrıldı. Gruplar arasında ameliyat sonrası ayak bileği dorsifleksiyon kas kuvvetlerinin iyileşme oranlarını ve derecesini değerlendirmek için Kruskal-Wallis ve Bonferroni düzeltmeli Mann Whitney U testi kullanıldı.Bulgular: Bu çalışmada, düşük ayak nedeniyle ameliyat edilen 30 hasta (18 kadın ve 12 erkek) değerlendirilmiştir. Hastaların ameliyat sırasındaki ortalama yaşı 46,5±13,5 (aralık 18-72) idi. Ameliyat sonrası ayak bileği dorsifleksiyonu kas gücü 1 hafta grubunda 1,0±1,3 (aralık, 0-3) idi. 1 hafta grubundan (p=0,002) anlamlı şekilde farklılık göstermekteydi. 72 saat - 1 hafta grubu ve >1 hafta grubu arasında istatistiksel olarak anlamlı bir farklılık görülmedi (p=0,427).Sonuç: Düşük ayak kliniğinde semptomların başlangıcından cerrahi dekompresyona kadar geçen sürenin, ameliyat sonrası iyileşme oranlarında istatistiksel olarak anlamlı bir prediktör olduğu görüldü., Aim: The aim of this study was to evaluate the effect of the duration from foot drop development to nerve decompression on the rate and degree of recovery in foot drop clinic.Material and Methods: We retrospectively reviewed 30 consecutive patients who had undergone microdiscectomy for foot drop clinic (ankle dorsiflexion 0/5 paresis) between April 2014 and February 2019. Patients were divided into three groups according to the time from foot drop development to surgery, as 1 week. Kruskal-Wallis and Bonferroni corrected Mann Whitney U test were used to evaluate the rate and degree of recovery of ankle dorsiflexion muscle strength between groups.Results: In this study, 30 patients (18 females and 12 males) who underwent surgery for foot drop were evaluated. Mean age at the time of surgery was 46.5±13.5 (range, 18-72) years. Postoperative ankle dorsiflexion strength was 4.2±1.6 (range, 0-5) in 1 week group. Postoperative muscle strength improvement level of 1 week group (p=0.002). There was no statistically significant difference between 72 hours - 1 week group and >1 week group (p=0.427).Conclusion: In foot drop clinic, the duration from onset of symptoms to surgical decompression was a statistically significant predictor of postoperative recovery rates.
- Published
- 2019
25. Rapidly progressing interhemispheric subdural empyema showing a three-fold increase in size within 12 hours: Case report
- Author
-
Mehmet Sabri Gürbüz, Mehmet Onur Yüksel, Numan Karaarslan, and Tezcan Caliskan
- Subjects
medicine.medical_specialty ,Intracranial infection ,Dura mater ,Case Report ,03 medical and health sciences ,High morbidity ,0302 clinical medicine ,rapidly progressing ,medicine ,Left hemiplegia ,Subdural empyema ,business.industry ,Emergency department ,Case description ,medicine.disease ,subdural empyema ,Surgery ,medicine.anatomical_structure ,030220 oncology & carcinogenesis ,Anesthesia ,interhemispheric ,Increase in size ,Arachnoid Membrane ,Neurology (clinical) ,business ,030217 neurology & neurosurgery - Abstract
Background: Subdural empyema is a rare form of intracranial infection. It is described as accumulation of purulent infective material between the inner layer of dura mater and outer layer of arachnoid membrane. Case Description: A 17-year-old girl was admitted to the emergency department with acute left hemiplegia and was diagnosed with interhemispheric subdural empyema that showed a three-fold increase in size within 12 hours. Complete recovery was achieved with emergency surgical evacuation and additional 3 weeks of antibiotic treatment. Conclusion: Subdural empyema should be diagnosed and managed early in time since it may progress very rapidly and can cause high morbidity and mortality. Complete recovery can be achieved if it is diagnosed early and treated in time.
- Published
- 2016
26. Timing of shunt placement relative to shunt infections in cases of hydrocephalus associated with myelomeningocele
- Author
-
Mehmet Onur Yüksel and Mehmet Sabri Gürbüz
- Subjects
Shunt placement ,medicine.medical_specialty ,business.industry ,Retrospective cohort study ,medicine.disease ,Shunt infection ,Shunt (medical) ,Hydrocephalus ,Surgery ,Shunting ,03 medical and health sciences ,0302 clinical medicine ,Medicine ,Neurology (clinical) ,business ,030217 neurology & neurosurgery - Abstract
Aim To determine whether the timing of shunt placement affects shunt infection rate in hydrocephalus associated with myelomeningocele (MMC). Material and methods The cases of 67 consecutive patients who underwent MMC repair and ventriculoperitoneal (VP) shunt placement between 2010 and 2017 were analyzed, retrospectively. Shunt infection rates were compared for three different approaches: simultaneous shunting (MMC repair and shunting in the same session; n=22), early shunting (shunting in the first week after MMC repair; n=21), and delayed shunting (shunting in the second week after MMC repair; n=24). Results Three patients in the simultaneous shunting group (13.6%) and two patients in the early shunting group (9.5%) developed shunt infection, whereas no such infections occurred in the delayed shunting group (p > 0.05). Conclusion While the shunt infection rates for the simultaneous, early and delayed shunting groups were not significant, it is of interest that no shunt infections occurred in the delayed shunting group. Investigation with a larger number of patients is warranted to assess whether delayed shunting might reduce the risk of shunt infection.
- Published
- 2019
- Full Text
- View/download PDF
27. Lomber Disk Hernisi Nedeniyle Düşük Ayak Gelişen Hastalarda Semptomların Başlangıcından Ameliyata Kadar Geçen Sürenin Prognoza Etkisi
- Author
-
Serdar Çevik and Mehmet Onur Yüksel
- Subjects
Gynecology ,Foot drop ,medicine.medical_specialty ,business.industry ,General Medicine ,medicine.disease ,Prognosis ,Lumbar disc ,Medicine ,In patient ,Hernia ,Surgery ,medicine.symptom ,business ,Lumbar disc hernia - Abstract
Aim: The aim of this study was to evaluate the effect of the duration from foot drop development to nerve decompression on the rate and degree of recovery in foot drop clinic. Material and Methods: We retrospectively reviewed 30 consecutive patients who had undergone microdiscectomy for foot drop clinic (ankle dorsiflexion 0/5 paresis) between April 2014 and February 2019. Patients were divided into three groups according to the time from foot drop development to surgery, as 1 week. Kruskal-Wallis and Bonferroni corrected Mann Whitney U test were used to evaluate the rate and degree of recovery of ankle dorsiflexion muscle strength between groups. Results: In this study, 30 patients (18 females and 12 males) who underwent surgery for foot drop were evaluated. Mean age at the time of surgery was 46.5±13.5 (range, 18-72) years. Postoperative ankle dorsiflexion strength was 4.2±1.6 (range, 0-5) in 1 week group. Postoperative muscle strength improvement level of 1 week group (p=0.002). There was no statistically significant difference between 72 hours-1 week group and >1 week group (p=0.427). Conclusion: In foot drop clinic, the duration from onset of symptoms to surgical decompression was a statistically significant predictor of postoperative recovery rates. © 2019, Duzce University Medical School. All rights reserved. Medical Research Council, MRC: Table1 A total of consecutive thirty patients, who had undergone microdiscectomy due to foot drop clinic (ADF 0/5 paresis) by the same surgical team in two different state hospitals between April 2014 and February 2019, were retrospectively reviewed. Clinical records, radiological imaging reports and surgical reports were reviewed. Data on patient demographics and clinical features, the time elapsed between the development of foot drop and surgery, duration of surgery, and muscle strength of ADF in the early post-operative period were reached. The evaluation of muscle strength of the ADF was carried out by the assessment of the tibialis anterior muscle in accordance with the muscle strength scale of Medical Research Council (Table1). Comorbidities, including diabetes mellitus (DM), smokers, coronary artery disease, chronic obstructive pulmonary disease (COPD) and hypertension were ascertained from the medical records. All procedures carried out in studies including human participants were conducted in compliance with the ethical standards of institutional and/or national research committee, the Helsinki Declaration and its amendments or comparable ethical standards. Ethical approval for the study was obtained from the institutional review board of Namık Kemal University (01.08.2019, 2019/21). Informed and written consent was obtained from all patients. The patients were divided into three groups as regards the time elapsed from the development of foot drop to surgery, as 1 week. Statistical Analysis Normality assumption for continuous data were examined by Shapiro-Wilk test. The differences between the groups were analyzed by Kruskal-Wallis test followed by Mann Whitney U test with Bonferroni correction, since variables not showing normal distribution. Descriptive statistics given as mean±standard deviation and median (minimum-maximum). Categorical data were analyzed with Fisher-Freeman-Halton test and summarized as frequency and percentage. All statistical analyses were performed using MedCalc v.12.7.7 (MedCalc Software, Ostend, Belgium), and p
- Published
- 2019
28. Lipomatous meningioma: A rare subtype of benign metaplastic meningiomas
- Author
-
Sevilay Ozmen, Osman Tanriverdi, Mehmet Sabri Gürbüz, and Mehmet Onur Yüksel
- Subjects
Pathology ,medicine.medical_specialty ,Frontoparietal Craniotomy ,Case Report ,lipoblastic meningioma ,World health ,lcsh:RC321-571 ,030218 nuclear medicine & medical imaging ,Meningioma ,03 medical and health sciences ,histopathological diagnosis ,0302 clinical medicine ,medicine ,otorhinolaryngologic diseases ,lcsh:Neurosciences. Biological psychiatry. Neuropsychiatry ,neoplasms ,medicine.diagnostic_test ,business.industry ,General Neuroscience ,Magnetic resonance imaging ,Aggressive character ,Metaplastic Meningioma ,medicine.disease ,nervous system diseases ,Benign Meningioma ,Differential diagnosis ,Neurology (clinical) ,business ,030217 neurology & neurosurgery - Abstract
Lipomatous meningiomas are extremely rare subtypes of benign meningiomas and are classified as metaplastic meningioma in the World Health Organization classification. We present a 77-year-old man presented with the history of a gradually intensifying headache for the last 3 months. A right frontoparietal mass was detected on his cranial magnetic resonance imaging. The patient was operated on via a right frontoparietal craniotomy, and histopathological diagnosis was lipomatous meningioma. Distinctive characteristics of lipomatous meningiomas were discussed with special emphasis to importance of immunohistochemical examinations, particularly for its differentiation from the tumors showing similar histology though having more aggressive character.
- Published
- 2017
29. The Association between Sagittal Index, Canal Compromise, Loss of Vertebral Body Height, and Severity of Spinal Cord Injury in Thoracolumbar Burst Fractures
- Author
-
Merih İş, Mehmet Zafer Berkman, Numan Karaarslan, Sevki Gok, Mehmet Onur Yüksel, and Mehmet Sabri Gürbüz
- Subjects
medicine.medical_specialty ,Neurological injury ,Scoring system ,radiological characteristic ,lcsh:RC321-571 ,030218 nuclear medicine & medical imaging ,Lesion ,03 medical and health sciences ,0302 clinical medicine ,Burst fracture ,medicine ,In patient ,Multicenter ,lcsh:Neurosciences. Biological psychiatry. Neuropsychiatry ,Spinal cord injury ,business.industry ,General Neuroscience ,Classification ,medicine.disease ,Sagittal plane ,neurological injury ,Management ,Surgery ,Vertebral body ,medicine.anatomical_structure ,Parameters ,fracture morphology ,Original Article ,Neurology (clinical) ,measurement ,medicine.symptom ,business ,American Spinal Injury Association score ,030217 neurology & neurosurgery - Abstract
Aim: Our aim was to determine whether a combination of sagittal index (SI), canal compromise (CC), and loss of vertebral body height (LVBH) is associated with the severity of neurological injury in patients with thoracolumbar burst fractures. Materials and Methods: Seventy-four patients with thoracolumbar burst fracture undergoing instrumentation between 2010 and 2015 were analyzed retrospectively. The degree of neurological injury was determined using the American Spinal Injury Association (ASIA) scoring system. The association between the morphology of the fracture and the severity of neurological injury was analyzed. Results: There was a strong association between fracture morphology and the severity of neurological injury. Of the patients, 77.5% with SI ≥20°, 81.6% with CC ≥40%, and 100% with LVBH ≥50% had lesion according to ASIA. All of 7 patients with ASIA A had SI ≥20°, CC ≥40%, and LVBH ≥50%. On the other hand, 79% of the patients with ASIA E had SI 25°, the patients with CC >40%, and the patients with LVBH >50% are likely to have a more severe neurological injury.
- Published
- 2017
30. Spontaneous Subdural Haematoma Developing Secondary to Arachnoid Cyst Rupture
- Author
-
Mehmet Onur Yüksel, Mehmet Senol, Numan Karaarslan, and Mehmet Sabri Gürbüz
- Subjects
Arachnoid cyst complication ,medicine.medical_specialty ,congenital, hereditary, and neonatal diseases and abnormalities ,without trauma ,Fossa ,Intracranial haemorrhage ,Clinical Biochemistry ,Subdural haematoma ,lcsh:Medicine ,Space ,Surgery Section ,Spontaneous rupture ,Resection ,03 medical and health sciences ,0302 clinical medicine ,Arachnoid cyst ,parasitic diseases ,medicine ,030212 general & internal medicine ,arachnoid cyst complication ,Diplopia ,biology ,business.industry ,lcsh:R ,General Medicine ,Without trauma ,medicine.disease ,biology.organism_classification ,Surgery ,nervous system diseases ,spontaneous rupture ,body regions ,Of-The-Literature ,medicine.symptom ,Presentation (obstetrics) ,business ,Complication ,030217 neurology & neurosurgery - Abstract
Arachnoid cysts are congenital, benign, non-neoplastic, extra-axial intra-arachnoidal lesions. Arachnoid cysts rarely become symptomatic, with bleeding. Intracranial haemorrhage as a complication of arachnoid cyst is a very rare condition. It is well-known that mid-cranial fossa cysts might cause intracerebral haemorrhage or subdural haematoma secondary to traumas. However, the occurrence of spontaneous subdural haematoma secondary to arachnoid cysts, developing without any trauma, is even rarer. A 17-year-old boy presenting with diplopia and headache, with no history of trauma, was diagnosed with left temporal lobe arachnoid cyst and left fronto-parietal subdural haematoma. He was operated on, solely for his haematoma, with no intervention performed for the arachnoid cyst. Authors suggest that it is sufficient to perform an operation for the haematoma only - without arachnoid cyst resection-if there is no clinical presentation specific to the arachnoid cyst itself.
- Published
- 2016
31. Might Trauma Be a Triggering Factor for Craniofacial Fibrous Dysplasia?
- Author
-
Mehmet Sabri Gürbüz, Mehmet Onur Yüksel, Mehmet Esref Kabalar, and Hilmi Onder Okay
- Subjects
Adult ,Male ,Pathology ,medicine.medical_specialty ,Disease ,Fibrous Dysplasia, Polyostotic ,Facial Bones ,03 medical and health sciences ,0302 clinical medicine ,Skull fracture ,medicine ,Humans ,Craniofacial ,Orbital Fractures ,business.industry ,Fibrous dysplasia ,030206 dentistry ,General Medicine ,medicine.disease ,Magnetic Resonance Imaging ,Skeleton (computer programming) ,Skull ,Normal bone ,medicine.anatomical_structure ,Otorhinolaryngology ,030220 oncology & carcinogenesis ,Etiology ,Surgery ,Tomography, X-Ray Computed ,business - Abstract
Fibrous dysplasia (FD) is a rare, benign disease of unclear etiology where normal bone is replaced with abnormal fibrous and weak osseous tissue. Any bone of the skeleton might be involved but skull is one of the most commonly affected sites. Fibrous dysplasia is known to be caused by a genetic mutation leading to inappropriate proliferation and differentiation of osteoblastic cells. However; it is not known whether any triggering factor exists which might contribute to this genetic mutation. The authors postulated that trauma might be a triggering factor for this disease. Trauma, as a triggering factor, has not been reported to be clearly linked to FD in the literature so far. Through this perspective; the authors report a patient of fronto-orbital fibrous dysplasia developing 6 years after a fronto-orbital skull fracture, at the same localization of the fracture line.
- Published
- 2017
- Full Text
- View/download PDF
32. Cervical disc hernia operations through posterior laminoforaminotomy
- Author
-
Coskun Yolas, Ibrahim Burak Atci, Hakan Yilmaz, Umit Kahraman, Hilmi Onder Okay, Mehmet Onur Yüksel, Ayhan Kanat, Mehmet Senol, Mustafa Kemal Coban, Nuriye Guzin Ozdemir, RTEÜ, Tıp Fakültesi, Cerrahi Tıp Bilimleri Bölümü, and Kanat, Ayhan
- Subjects
medicine.medical_specialty ,lcsh:Diseases of the musculoskeletal system ,Radiography ,03 medical and health sciences ,0302 clinical medicine ,Cervical disc herniation ,medicine ,Cervical spondylosis ,Hernia ,030212 general & internal medicine ,Foraminal stenosis ,Intervertebral foramen ,Cervical kyphosis ,Neck pain ,business.industry ,Posterior laminoforaminotomy ,posterior laminoforaminotomy ,medicine.disease ,Surgery ,Stenosis ,medicine.anatomical_structure ,Original Article ,Neurology (clinical) ,Radiology ,medicine.symptom ,lcsh:RC925-935 ,business ,Cervical disc ,030217 neurology & neurosurgery ,foraminal stenosis - Abstract
Kanat, Ayhan/0000-0002-8189-2877 WOS: 000376130600006 PubMed: 27217655 Objective: the most common used technique for posterolateral cervical disc herniations is anterior approach. However, posterior cervical laminotoforaminomy can provide excellent results in appropriately selected patients with foraminal stenosis in either soft disc prolapse or cervical spondylosis. the purpose of this study was to present the clinical outcomes following posterior laminoforaminotomy in patients with radiculopathy. Materials and Methods: We retrospectively evaluated 35 patients diagnosed with posterolateral cervical disc herniation and cervical spondylosis with foraminal stenosis causing radiculopathy operated by the posterior cervical keyhole laminoforaminotomy between the years 2010 and 2015. Results: the file records and the radiographic images of the 35 patients were assessed retrospectively. the mean age was 46.4 years (range: 34-66 years). of the patients, 19 were males and 16 were females. in all of the patients, the neurologic deficit observed was radiculopathy. the posterolaterally localized disc herniations and the osteophytic structures were on the left side in 18 cases and on the right in 17 cases. in 10 of the patients, the disc level was at C5-6, in 18 at C6-7, in 2 at C3-4, in 2 at C4-5, in 1 at C7-T1, in 1 patient at both C5-6 and C6-7, and in 1 at both C4-5 and C5-6. in 14 of these 35 patients, both osteophytic structures and protruded disc herniation were present. Intervertebral foramen stenosis was present in all of the patients with osteophytes. Postoperatively, in 31 patients the complaints were relieved completely and four patients had complaints of neck pain and paresthesia radiating to the arm (the success of operation was 88.5%). on control examinations, there was no finding of instability or cervical kyphosis. Conclusion: Posterior cervical laminoforaminotomy is an alternative appropriate choice in both cervical soft disc herniations and cervical stenosis.
- Published
- 2016
33. Subdural haematoma as a rare complication of cochlear implantation: case report and literature review
- Author
-
Mehmet Zafer Berkman, Mehmet Onur Yüksel, Mehmet Sabri Gürbüz, and Metin Orakdogen
- Subjects
Alternative methods ,Male ,medicine.medical_specialty ,business.industry ,Intracranial haemorrhage ,Subdural haematoma ,General Medicine ,medicine.disease ,Cochlear Implantation ,Surgery ,Hematoma ,Hematoma, Subdural ,Postoperative Complications ,Otorhinolaryngology ,Child, Preschool ,medicine ,Humans ,Implant ,Cochlear implantation ,Complication ,business ,Tomography, X-Ray Computed ,Neurological deficit - Abstract
Objective:To report a case of subdural haematoma occurring as an extremely rare and life-threatening complication of cochlear implantation, and to explore the causative association between intracranial haemorrhage and cochlear implantation surgical techniques. This association has not previously been reviewed in depth.Case report:A three-year-old boy was diagnosed with a large subdural haematoma, one week after cochlear implantation. After emergency evacuation of the haematoma, the patient made an excellent recovery and was discharged from hospital without any neurological deficit.Results:Mechanisms of injury are discussed and the literature reviewed, focusing on the possible causes of intracranial haemorrhage identified after cochlear implantation. Notably, bone drilling had been used in all reported cases, and the probable causative injury had always occurred after such drilling.Conclusion:The issue of bone drilling during cochlear implantation is raised, and alternative methods of implant housing suggested, in order to avoid intracranial haemorrhage.
- Published
- 2013
34. Postlumbar puncture arachnoiditis mimicking epidural abscess
- Author
-
Mehmet Sabri Gürbüz, Mehmet Onur Yüksel, Hakan Somay, and Baris Erdogan
- Subjects
Male ,musculoskeletal diseases ,congenital, hereditary, and neonatal diseases and abnormalities ,medicine.medical_specialty ,Neurology ,Epidural abscess ,Spinal Puncture ,Article ,Diagnosis, Differential ,Lumbar ,Humans ,Medicine ,medicine.diagnostic_test ,business.industry ,Lumbar puncture ,Diagnostic lumbar puncture ,General Medicine ,Middle Aged ,medicine.disease ,Magnetic Resonance Imaging ,nervous system diseases ,Surgery ,body regions ,Arachnoiditis ,Epidural Abscess ,Differential diagnosis ,business - Abstract
Lumbar spinal arachnoiditis occurring after diagnostic lumbar puncture is a very rare condition. Arachnoiditis may also present with fever and elevated infection markers and may mimic epidural abscess, which is one of the well known infectious complications of lumbar puncture. We report the case of a 56-year-old man with lumbar spinal arachnoiditis occurring after diagnostic lumbar puncture who was operated on under a misdiagnosis of epidural abscess. In the intraoperative and postoperative microbiological and histopathological examination, no epidural abscess was detected. To our knowledge, this is the first case of a patient with postlumbar puncture arachnoiditis operated on under a misdiagnosis of epidural abscess reported in the literature. The authors suggest that arachnoiditis may mimic epidural abscess due to its clinical and radiological features and should be considered in the differential diagnosis of complications of lumbar puncture.
- Published
- 2013
- Full Text
- View/download PDF
Catalog
Discovery Service for Jio Institute Digital Library
For full access to our library's resources, please sign in.