Oguz Uzun
Ondokuz Mayıs University
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Publication
Featured researches published by Oguz Uzun.
Joint Bone Spine | 2009
Dilek Durmus; Gamze Alayli; Oguz Uzun; Berna Tander; Ferhan Canturk; Yüksel Bek; Levent Erkan
OBJECTIVE The aim of this study was to evaluate the impact of two different home-based daily exercise programs on pulmonary functions in the patients with ankylosing spondylitis (AS). METHODS Fifty-one patients with AS were distributed into three groups. Group 1 (n=19) was given a conventional exercise regimen. Group 2 (n=19) received exercises based on the Global Posture Reeducation (GPR) method. Group 3 (n=13) was accepted as the control group. Patients were assessed according to pain, functional capacity (The Bath Ankylosing Spondylitis Functional Index - BASFI), disease activity (The Bath Ankylosing Spondylitis Disease Activity Index - BASDAI), chest expansion, pulmonary function parameters, and 6-min walk distance (6MWD) test. RESULTS Although there were significant improvements for BASDAI and BASFI scores in all groups, significant improvements in the VAS pain, chest expansion, pulmonary function parameters and 6MWD test were observed in the exercise groups. The improvements in pain, functional capacity, disease activity, chest expansion, pulmonary function parameters and 6MWD test were better in the exercise groups than in the control group. The GPR method resulted in greater improvements than the conventional exercise program in specific pulmonary function parameters like forced vital capacity, forced expiratory volume in 1s, and peak expiratory flow parameters. CONCLUSION Both exercises are efficient in improving pulmonary functions. Since the improvements in pulmonary function tests were greater in the patients who performed the exercise according to GPR method, motivated patients should be encouraged to perform this exercise program.
Respiration | 2008
Oguz Uzun; Levent Erkan; Ilkser Akpolat; Serhat Findik; Atilla Guven Atici; Tekin Akpolat
Background: Behçet’s disease (BD) is a multisystem vasculitis and pulmonary involvement in BD is reported to indicate poor prognosis and high mortality. Objectives: The aims of this study were to report on patients with pulmonary involvement and to discuss pulmonary artery thrombus and small-sized vasculitis associated with BD, with respect to previously published cases. Methods: Fifteen patients with BD and pulmonary involvement were included in this study. Massive hemoptysis was observed in all patients having pulmonary artery aneurysm (PAA). Results: Eleven patients had macroscopic pulmonary vascular disease (2 PAA, 3 PAA and thrombi and 6 only thrombi) and 3 patients had microscopic pulmonary vascular disease. The remaining patient had pulmonary cryptococcosis. Conclusions: Data regarding treatment and outcomes of patients having BD-related pulmonary emboli/infarct and small-sized vasculitis are limited. Pulmonary vasculitis affects different levels of the pulmonary artery in BD and should be classified as macroscopic and microscopic vascular disease. ‘Pulmonary artery thrombosis’ should be used instead of ‘pulmonary emboli’. Spiral CT angiography is the best radiological tool for evaluation of pulmonary problems in BD. Treatment of vasculitis should be based on the type of vascular disease and may vary among different types of vascular disease. Anticoagulation can be used in patients with microscopic vascular disease and nonaneurysmal macroscopic vascular disease. More studies are needed to clarify this issue.
Acta Radiologica | 2009
M. S. Nural; Muzaffer Elmali; Serhat Findik; O. Yapici; Oguz Uzun; A. T. Sunter; Levent Erkan
Background: The distinction between severe pulmonary embolism (PE) and right heart dysfunction is important for predicting patient mortality. Purpose: To identify the role of computed tomographic pulmonary angiography (CTPA) in the assessment of the severity of acute PE and right ventricular dysfunction. Material and Methods: Eighty-five patients suspected of having PE, as diagnosed by CTPA and scintigraphy, were divided into three groups: hemodynamically unstable PE (HUPE) (n = 20), hemodynamically stable PE (HSPE) (n = 33), and no PE (n = 32). For each patient, obstruction scores, including short-axis diameters of the right ventricle (RV) and left ventricle (LV), main pulmonary artery, and superior vena cava (SVC), were measured. The RV/LV short-axis ratios were calculated. The shapes of the interventricular septum and the reflux of the contrast medium into the inferior vena cava (IVC) were evaluated. The mortality due to PE within a 1-month follow-up period was recorded. Results: The median CTPA obstruction score (HUPE 64%, HSPE 28%, P < 0.001), median RV/LV short-axis ratio (HUPE 1.4, HSPE 1.0, P < 0.01), median RV diameter (HUPE 55 mm, HSPE 42 mm, P < 0.001), median SVC diameter (HUPE 23 mm, HSPE 19 mm, P < 0.01), interventricular septum convex toward the LV (HUPE 70%, HSPE 18%, P < 0.001), and reflux of the contrast medium into the IVC (HUPE 65%, HSPE 33%, p < 0.05) were significantly different between the HUPE and HSPE groups. With ROC analysis, the CTPA obstruction score and RV/LV short-axis ratio threshold values for the HUPE patients were calculated to be 48% (95% sensitivity, 76% specificity) and 1.1 (85% sensitivity, 76% specificity), respectively. Three patients in the HUPE group died within the first 24 hours. Logistic regression methods revealed only the RV diameter as a significant predictor of death (odds ratio 1.24; 95% CI 1.04–1.48; P = 0.01). Conclusion: This study found that the parameters useful for distinguishing HUPE and HSPE included CTPA obstruction score, RV and SVC diameters, RV/LV short-axis ratio, interventricular septum shape, and reflux into the IVC. RV dilatation may be a significant predictor for mortality.
Respiration | 2008
Serhat Findik; Levent Erkan; Richard W. Light; Oguz Uzun; Atilla Guven Atici; Hüseyin Akan
Background: Massive pulmonary embolism (PE) is a devastating form of PE which usually results in acute right ventricular failure and death within 1–2 h. Objectives: To retrospectively assess pulmonary vascular, cardiac, pleural, and parenchymal findings on CT pulmonary angiography (CTPA) in patients with a diagnosis of massive PE (systolic blood pressure <90 mm Hg, syncope and/or shock). Methods: In 33 consecutive patients with proven massive PE, hemodynamic severity was assessed by the extent of right ventricular dysfunction (RVD); diameter of the main pulmonary artery; the shape of the interventricular septum; and the extent of obstruction to the pulmonary arterial circulation (CT obstruction index). Results: Central pulmonary arteries were embolized in all patients. RVD was detected in all patients (94% of them had severe RVD); the diameter of the main pulmonary artery was wider than normal in 76% of the patients; the shape of the interventricular septum was abnormal in all patients, and the CT obstruction index was higher than or equal to 50% in 85% of the patients. Wedge-shaped pleural-based consolidation was the most common parenchymal abnormality (36%). Pleural effusions were seen in 26 patients (79%). Twenty-eight patients were alive, and only the use of thrombolytic therapy was found to be statistically significant. Conclusions: In patients with acute massive PE, embolization of the central pulmonary arteries, RVD and displacement of the interventricular septum are commonly seen with CTPA. A CT obstruction index of >50% is commonly observed in massive PE. There was no association between CTPA findings and survival.
Clinical Respiratory Journal | 2009
Oguz Uzun; Yıldız Atasoy; Serhat Findik; Atilla Guven Atici; Levent Erkan
Background and Aims: Hemoptysis is symptomatic of a potentially serious and life‐threatening thoracic disease. The purpose of this study was to evaluate the relative frequency of the different causes of hemoptysis, the change of the frequency of diseases, the value of the evaluation process and the outcome in a tertiary referral hospital.
International Journal of Chronic Obstructive Pulmonary Disease | 2008
Levent Erkan; Oguz Uzun; Serhat Findik; Didem Katar; Ahmet Sanic; Atilla Guven Atici
Background and study objective Infections are major causes of acute exacerbations of chronic obstructive pulmonary disease (COPD) which result in significant mortality and morbidity. The primary aim of the study was to determine the microbiological spectrum including atypical agents in acute exacerbations. The secondary aim was to evaluate resistance patterns in the microorganisms. Methods The sputum culture of 75 patients admitted to our clinic from January 1, 1999 to December 31, 2002 was evaluated prospectively, for aerobic Gram-positive and Gram-negative bacteria, and serologically for Chlamydophila pneumoniae and Mycoplasma pneumoniae. Sensitivity patterns in potentially pathogenic microorganisms (PPMs) were also investigated. Results An infectious agent was identified in 46 patients, either serologically or with sputum culture. Pathogens most commonly demonstrated were: Haemophilus influenzae (30%), Chlamydophila pneumoniae (17%), and Mycoplasma pneumoniae (9%). Mixed infections were diagnosed in 9 patients. PPMs showed a high resistance rate to commonly used antibiotics. Conclusion We have shown that microorganisms causing acute exacerbations of COPD are not only typical bacteria (46%) but also atypical pathogens (26%), with unpredictable high rates. Typical agents showed a high resistance to commonly used antibiotics.
Respirology | 2011
Gulfer Okumus; Benan Musellim; Erdogan Cetinkaya; Hatice Turker; Esra Uzaslan; Esin Yentürk; Oguz Uzun; Leyla Saglam; Özlem Özdemir Kumbasar; Gökhan Çelik; Ali Nihat Annakkaya; Gundeniz Altiay; Levent Tabak; Aysin Sakar; Goksel Kiter; Serdar Erturan; Haluk Turktas; Enver Yalniz; Atilla Akkoçlu; Candan Öğüş; Omer Tamer Dogan; Metin Ozkan; Serir Aktogu; Işıl Uzel; Gul Ongen
Background and objective: Extrapulmonary sarcoidosis is common, and is almost always associated with concomitant thoracic involvement. Extrapulmonary manifestations vary on the basis of gender, age at presentation and ethnicity. The aim of this study was to investigate extrapulmonary involvement in patients with sarcoidosis in Turkey.
Respirology | 2004
Oguz Uzun; Serhat Findik; Murat Danaci; Didem Katar; Levent Erkan
Abstract: Pulmonary oil embolism (POE) is an extremely rare complication of hysterosalpingography (HSG). A case report of a 29‐year‐old woman who developed confusion and respiratory distress 12 h after HSG is presented. Intravasation of the contrast material was obvious on the HSG. High‐resolution CT revealed ground‐glass pattern predominantly in the lower lobes. The clinical picture and radiological findings improved on the tenth hospital day. It is believed that this is the first report of high‐resolution CT findings in a case complicating HSG.
Journal of Korean Medical Science | 2005
Serhat Findik; Hüseyin Akan; Sancar Baris; Atilla Guven Atici; Oguz Uzun; Levent Erkan
Primary hemangiopericytoma of the rib is extremely rare and only a few cases have been reported. A 62-yr-old man presented with an aching chest pain and dyspnea. Thoracic computed tomography revealed a homogenous mass expanding the right seventh rib. A diagnosis of hemangiopericytoma was established by percutaneous needle biopsy. Preoperative embolization of the feeding vessels of the tumor was performed in order to prevent perioperative bleeding. There was no significant bleeding during the surgery, where complete resection of the tumor with 7th to 9th ribs with a surgical margin of 5 cm was performed. Postoperative course was uneventful and there has been no recurrence for thirteen months. To our knowledge, there has been no report to apply a preoperative embolization of a primary hemangiopericytoma of the rib.
Case Reports in Medicine | 2016
Elif Tanriverdi; Mehmet Akif Özgül; Oguz Uzun; Şule Gül; Mustafa Çörtük; Zehra Yasar; Murat Acat; Naciye Arda; Erdoğan Çetinkaya
Tracheobronchial amyloidosis is a rare presentation and accounts for about 1% of benign tumors in this area. The diagnosis of disease is delayed due to nonspecific pulmonary symptoms. Therapeutic approaches are required to control progressive pulmonary symptoms for most of the patients. Herein, we report a case of a 68-year-old man admitted with progressive dyspnea to our institution for further evaluation and management. He was initially diagnosed with and underwent management for bronchial asthma for two years but had persistent symptoms despite optimal medical therapy. Pulmonary computed tomography scan revealed severe endotracheal stenosis. Bronchoscopy was performed and showed endotracheal mass obstructing 70% of the distal trachea and mimicking a neoplastic lesion. The mass was successfully resected by mechanical resection, argon plasma coagulation (APC), and Nd-YAG laser during rigid bronchoscopy. Biopsy materials showed deposits of amorphous material by hematoxylin and eosin staining and these deposits were selectively stained with Congo Red. Although this is a rare clinical condition, this case indicated that carrying out a bronchoscopy in any patient complaining of atypical bronchial symptoms or with uncontrolled asthma is very important.