Sabri Uslu - Academia.edu (original) (raw)

Papers by Sabri Uslu

Hakem Dizini / Reviewer Index 2006 Türk Otolarengoloji Arflivi Editör Ekibi olarak afla¤›da adlar... more Hakem Dizini / Reviewer Index 2006 Türk Otolarengoloji Arflivi Editör Ekibi olarak afla¤›da adlar› bulunan meslektafllar›m›za 44. cilt ile ilgili bilim-sel makale de¤erlendirmelerinden dolay› teflekkür ederiz. The Editorial Staff of the Turkish Archives of Otolaryngology expresses their appreciation to the following colleagues who have reviewed manuscripts for Volume 44.

Nasal septal perforation repair using open rhinoplasty technique Nasal septal perforations cause ... more Nasal septal perforation repair using open rhinoplasty technique Nasal septal perforations cause a significant number and magnitude of symptoms in patients and constitute a serious challenge to otorhinolaryngologists. Numerous surgical methods have been described for the repair and closure of perforations. Closure of the perforation with upper lateral cartilage mucoperichondrial flap is described as an alternative surgical technique and results are discussed in this study. Twelve patients with nasal septal perforations sizes ranging from 5 to 30 mm were treated with the described surgical method. Complete closure of the perforation was achieved in 11 patients after a mean follow-up of 6.9 months. There were no significant donor site problems. In the light of the encouraging results, upper lateral cartilage mucoperichondrial flap can be suggested as a viable alternative surgical technique for closure of nasal septal perforations. 82 Özet Nazal septal perforasyonlar, etkilenen hastala...

Malgre la realisation routiniere de mastoidectomie dans les otites chroniques suppuree, la qualit... more Malgre la realisation routiniere de mastoidectomie dans les otites chroniques suppuree, la qualite de la muqueuse mastoidienne n'est pas bien connue. Le but de cette etude est d'evaluer la cavite de mastoidectomie a partir de prelevements de muqueuse mastoidienne pour rechercher une pathologie residuelle. Une mastoidoscopie sous anesthesie locale a permis d'evaluer la cavite de mastoidectomie et de prelever la muqueuse au niveau de l'antre. Cette etude a porte sur 12 patients. Quatre (33 %) avaient de grandes cavites, 6 (50 %) avaient une cavite etroite jusqu'au niveau de l'antre et 2 (17 %) avaient une cavite obliteree.Les prelevements de muqueuse ont ete etudies en microscopie electronique a transmission qui a revele un œdeme au niveau des mitochondries, une diminution des organelles, un oedeme intra cellulaire, des modifications nucleaires, une diminution des cils et une fibrose. En conclusion, meme si on retrouve des elements pathologiques au niveau micro...

TURKISH JOURNAL OF MEDICAL SCIENCES, 2017

Background/aim: Nasal polyposis is a chronic inflammatory disease affecting the paranasal sinuses... more Background/aim: Nasal polyposis is a chronic inflammatory disease affecting the paranasal sinuses and nasal mucosae. It is thought that genetic and molecular mechanisms in inflammatory and apoptotic pathways are the main factors in the etiopathogenesis of nasal polyposis. The aim of this study was to investigate the expression patterns of CD11b, galectin-1, beclin-1, and caspase-3 in nasal polyps. Materials and methods: The mRNA expression levels of CD11b, galectin-1, beclin-1, and caspase-3 protein and western blot analysis of caspase-3 protein were evaluated in inferior turbinate mucosae and nasal polyp tissues. Results: CD11b expression was markedly higher in nasal polyp tissues when compared to turbinate mucosae (5.5 times higher, P < 0.05). Expression of galectin-1 was not statistically higher in nasal polyp tissues when compared to the controls. Beclin-1 expression in nasal polyp tissues was lower than in controls (17 times lower, P < 0.05). Caspase-3 expression was significantly lower in nasal polyp tissues than in controls (5.5 times lower, P < 0.05). Conclusion: Inflammation, apoptosis, and hyperproliferation are the major cellular processes in nasal polyposis and these proteins may take part and play some important roles in formation of this disease and the targeting of new treatment protocols.

European Journal of Environmental and Civil Engineering, 2013

Many strengthening techniques for masonry structures have been thoroughly investigated in various... more Many strengthening techniques for masonry structures have been thoroughly investigated in various studies. Nevertheless, there is still a lack of information on the shear effects of metal connectors used in historical masonry structures. This paper presents the investigation of the effectiveness of metal connectors in relation to the shear collapse mechanism of stone masonry walls. A series of 12 stone masonry walls with metal connectors and an unreinforced masonry reference wall were subjected to shear forces. The test parameters were the length and number of clamps (horizontal metal connectors), and number of dowels (vertical metal connectors). The performance of the different metal connector configurations was compared in terms of strength and mechanism of failure. The results clearly show the effectiveness of metal connectors on shear behaviour of stone masonry walls.

Turkiye Klinikleri Journal of Ent, 2002

Gazi Medical Journal, 2000

Turkiye Klinikleri Kulak Burun Bogaz Ozel Dergisi, 2013

Turkiye Klinikleri Journal of Ent, 2001

Burun tıkanıklığı, hemen herkesi belli dönemlerde etkileyen, bazılarında ise sürekli problem yara... more Burun tıkanıklığı, hemen herkesi belli dönemlerde etkileyen, bazılarında ise sürekli problem yaratan bir durumdur. Burun tıkanıklığı varlığında, medikal tedavi, yakınmaların bir kısmını kontrol etmekte yeterli olmaktadır. Diğer hastalarda, özellikle sürekli yakınması olanlarda, medikal tedavi yetersiz olabilmekte ve cerrahi bir müdahale gerekebilmektedir. Cerrahi müdahale gerektiren durumlar arasında sayılabilecek, kronik sinüzit, septum deviasyonu gibi patolojilerde cerrahi müdahale düşüncesi çoğu zaman otomatik olarak akla gelmektedir. Bu patolojilerin olmadığı burun tıkanıklığı, sadece alt

Turkiye Klinikleri Kulak Burun Bogaz Ozel Dergisi, 2008

MapReduce and its variants have significantly simplified and accelerated the process of developin... more MapReduce and its variants have significantly simplified and accelerated the process of developing parallel programs. However, most MapReduce implementations focus on data-intensive tasks while many real-world tasks are compute intensive and their data can fit distributedly into the memory. For these tasks, the speed of MapReduce programs can be much slower than those hand-optimized ones. We present Blaze, a C++ library that makes it easy to develop high performance parallel programs for such compute intensive tasks. At the core of Blaze is a highly-optimized in-memory MapReduce function, which has three main improvements over conventional MapReduce implementations: eager reduction, fast serialization, and special treatment for a small fixed key range. We also offer additional conveniences that make developing parallel programs similar to developing serial programs. These improvements make Blaze an easy-to-use cluster computing library that approaches the speed of hand-optimized parallel code. We apply Blaze to some common data mining tasks, including word frequency count, PageRank, k-means, expectation maximization (Gaussian mixture model), and k-nearest neighbors. Blaze outperforms Apache Spark by more than 10 times on average for these tasks, and the speed of Blaze scales almost linearly with the number of nodes. In addition, Blaze uses only the MapReduce function and 3 utility functions in its implementation while Spark uses almost 30 different parallel primitives in its official implementation.

International Journal of Pediatric Otorhinolaryngology, 1995

Tumors of the salivary glands in children are not as common as in adults and they are mostly beni... more Tumors of the salivary glands in children are not as common as in adults and they are mostly benign. The most common benign epithelial neoplasm seen in children is pleomorphic adenoma. As is usually the case in the adult population, it is usually found in the superficial lobe of the parotid gland. Its localization in the deep lobe is rare. Pleomorphic adenomas of the deep lobe present with a neck mass and when it is large, it may have an intraoral extension as well. It may also assume a dumb-bell shape as it enlarges and may be observed on CT or MRI scans as a prestyloid mass. The choice of treatment depends on the localization and the size of the tumor. The method can be transoral, cervical, transmandibular, transparotid, retromandibular fossa or a combination of these. A child with an unusually large pleomorphic adenoma of the deep lobe of the parotid gland is presented in this study. The deep lobe tumor was totally removed using a combination of cervical and transmandibular approaches.

kbb-forum.net

Introduction: Hepatitis E virus (HEV) is responsible for acute self-limiting disease worldwide, m... more Introduction: Hepatitis E virus (HEV) is responsible for acute self-limiting disease worldwide, mostly among immunocompetent person. However it can be manifested in different forms, according to the immune state of the patient. A relevant group for studies of HEV infection is the chronic kidney disease hemodialysis-dependent (HD) population, which may be lead to a transplant and immunosuppressive treatment, mainly with tacrolimus and its analogues, which have been described as related to chronic hepatitis E. Also this special group has been reported to present higher prevalence in comparison to immunocompetent populations in HEV-GT3 (HEV-Genotype 3) circulating countries. In Brazil, the prevalence of HEV is still underestimated among HD patients. Objective: Elucidate the HEV prevalence and circulation among HD patients in Brazil. Methodology: To elucidate the prevalence, 286 plasma samples were collected between 2013 and 2015 from three private kidney treatment centers: 2 located in the Southeast (Rio de Janeiro and Queimados) and 1 located in the Northeast region of Brazil (Fortaleza). All plasma samples were tested for anti-HEV IgG antibodies detection by ELISA and tested for HEV-RNA detection by RT-qPCR for ORF3 region amplification. Results: General anti-HEV prevalence was 24.48% (70/286 positive for anti-HEV IgG antibodies) with different local prevalences of 37.80% in Rio de Janeiro,0% in Queimados and 27.27% in Fortaleza. Lower family income and longer period of time under hemodialysis were statistically related to anti-HEV IgG positivity. Concerning biochemical analysis, glicose levels were also related to anti-HEV IgG+ samples (p=0), iron levels were lower in anti-HEV IgG+ samples, suggesting a role of HEV proteins in iron metabolism modulation. No samples were for HEV RNA detection. Conclusion: This study corroborates previous studies that show a higher prevalence in HD patients in comparison to health patients and reinforce the importance of monitoring these patients.

The Journal of Laryngology & Otology, 2008

Objective:To investigate the impact of nasal irrigation with isotonic or hypertonic sodium chlori... more Objective:To investigate the impact of nasal irrigation with isotonic or hypertonic sodium chloride solution on mucociliary clearance time in patients with allergic rhinitis, acute sinusitis and chronic sinusitis.Patients and methods:Mucociliary clearance time was measured using the saccharine clearance test on 132 adults before and after 10 days' application of intranasal isotonic or hypertonic saline. Patient numbers were as follows: controls, 45; allergic rhinitis, 21; acute sinusitis, 24; and chronic sinusitis, 42. The results before and after irrigation were compared using the Wilcoxon t-test.Results:Before application of saline solutions, mucociliary clearance times in the three patient treatment groups were found to be significantly delayed, compared with the control group. Irrigation with hypertonic saline restored impaired mucociliary clearance in chronic sinusitis patients (p < 0.05), while isotonic saline improved mucociliary clearance times significantly in allerg...

Discussion Nasoalveolar cysts present as swelling in the soft tissue beneath the alae of the nose... more Discussion Nasoalveolar cysts present as swelling in the soft tissue beneath the alae of the nose [7]. The diagnosis is confirmed by histopathologic examination of the tissue as well as the clinical features. They constitute 0.7% of all jaw cysts and are more frequently seen in ...

Turkiye Klinikleri Journal of …, 2003

... (17:52) Sivas'ta Zara Devlet Hastanesinde yangın paniği. ... KBB Dergisi Yıl: 2003 /... more ... (17:52) Sivas'ta Zara Devlet Hastanesinde yangın paniği. ... KBB Dergisi Yıl: 2003 / Cilt: 3 / Sayı: 3. Lateral Sinüs Tromboflebiti Suat ÖZBİLEN * , S.Sabri USLU ** , Ahmet URAL *** * Prof.Dr., Gazi Üniversitesi Tıp Fakültesi Kulak Burun Boğaz AD, ** Doç.Dr., Gazi Üniversitesi Tıp ...

Kord vokal lezyonlarının tedavisinde amaç doğru tanı koymak, hastalığı ortadan kaldırmak ve posto... more Kord vokal lezyonlarının tedavisinde amaç doğru tanı koymak, hastalığı ortadan kaldırmak ve postoperatif dönemde normal bir ses elde etmektir. Geçen yüzyılın başıda Jackson'un direkt larengoskopiyi bulması, 1911'de Killian'ın suspansiyon lerengoskopisini keşfetmesiyle cerrahın ellerinin serbest kalmasını sağlaması, larenks cerrahisi ile uğraşan hekimler için büyük gelişmeler olmuştur. Hajek ve Reinke'nin larenks ödemini anlamaya çalışmaları ile başlayan larenks kompartmanlarının tanınması süreci, Pressman'ın 1950 lerde lenfatik drenajı görmek için yaptığı submukozal enjeksiyonlar ile gelişme göstermiş, ve 1978 yılında Kambic ilk kez superfisiyal lamina propria'ya serum vererek kord vokalin soyulmasının (strippingin) daha kolay gerçekleştirdiğini belirten kişi olmuştur (1).

Bulletin de l'Association des anatomistes, 1995

We report a variation of the median nerve at the level of brachial plexus in a 38 years old male ... more We report a variation of the median nerve at the level of brachial plexus in a 38 years old male cadaver. The median nerve was formed by the fusion of three branches; two of them coming from the lateral cord, and one from the medial cord. The abnormal root coming from the lateral cord had a very close oblique course over the axillary artery. These kinds of variations are more prone to injury in radical neck dissections and in other surgical operations of the axilla. Secondly, the very close course of the unusual branch with the axillary artery may lessen the blood supply of the upper extremity by compressing the vessel.

Gazi Medical Journal, 1990

Saudi Medical Journal, Jun 1, 2005

Brown tumors are tumor-like, expansile osteolytic lesions of bone which are seen in both primary ... more Brown tumors are tumor-like, expansile osteolytic lesions of bone which are seen in both primary and secondary hyperparathyroidism. They generally resolve after surgical treatment of the parathyroid adenoma. Here, we report a case of brown tumor of the mandible of a cadaver with its scanning electron microscopic observation and review of literature.

European Archives of Oto Rhino Laryngology and Head Neck, 2009

Radiofrequency reduction has become one of the most popular methods in the treatment of inferior ... more Radiofrequency reduction has become one of the most popular methods in the treatment of inferior nasal concha hypertrophy. During surgical treatment of inferior nasal concha hypertrophy, it is important to cause minimal injury to the overlying ciliated epithelium, since if the ciliated structure of this epithelium is permanently disrupted, it is hard to carry out one of the important functions of lining of the nasal cavity, mucociliary clearance. In this study, the ultrastructure of inferior nasal concha epithelium was examined by transmission and scanning electron microscopy in 40 patients with inferior nasal concha hypertrophy. The biopsy specimens were taken before the radiofrequency treatment and 8 weeks after the radiofrequency treatment. Then, the eVects of radiofrequency treatment on concha epithelium and morphology of ciliae were examined ultrastructurally. In the scanning and transmission electron microscopic examination of the tissue samples taken before radiofrequency treatment, no ultrastructural pathology was observed in the number and morphology of the ciliae and the inferior nasal concha epithelium. The biopsy specimens obtained 8 weeks after radiofrequency treatment also did not show any ultrastructural pathology in these parameters. However, in the transmission electron microscopic examination of the subepithelial tissue, Wbrosis was observed in local areas in the biopsy specimens obtained 8 weeks after radiofrequency treatment. In conclusion, the results obtained from this study suggest that ciliated epithelium of the inferior nasal concha is not destroyed by radiofrequency reduction.