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    Our Experience on Silicone Y-Stent for Severe COPD Complicated With Expiratory Central Airway Collapse
    (Lippincott Williams & Wilkins, 2017) Ozgul, Mehmet A.; Cetinkaya, Erdogan; Cortuk, Mustafa; Iliaz, Sinem; Tanriverdi, Elif; Gul, Sule; Ozgul, Guler
    Background: Expiratory central airway collapse (ECAC) is abnormal central airway narrowing during expiration. ECAC involves 2 different pathophysiological entities as tracheobronchomalacia and excessive dynamic airway collapse (EDAC). Although the exact cause is unknown, chronic obstructive pulmonary disease (COPD) is frequently accompanied by ECAC. Although there are various publications on the relationship between COPD and ECAC, there are very few data for stent placement in patients with tracheobronchomalacia accompanied severe COPD. We share our results for stenting in ECAC among patients with severe COPD. Methods: The data in this case series were collected retrospectively. The ECAC diagnosis was made during flexible bronchoscopy with severe COPD. Silicone Y-stents were placed via rigid bronchoscopy under general anesthesia. Results: A total of 9 patients' (7 men) data were evaluated with an average age of 67 +/- 10.73 years. One patient experienced stent migration on the second day of stenting prompting stent removal. Another patient died 1 month after stenting. Consequently, we evaluated the follow-up data of remaining 7 patients. The changes in forced expiratory volume 1 was not significant for these 7 cases (P = 0.51). The modified Medical Research Council (mMRC) score improvement was statistically significant (P = 0.03). Functional status improvement was observed in 4 of 7 patients. Of the 7 patients, mean additional follow-up bronchoscopic interventions requirement was 2.2 times. Conclusions: Our study showed significant decrease in mMRC score with stenting for ECAC in severe COPD. For 2 patients, we experienced severe complications during short-term follow-up period after stenting. Additional follow-up bronchoscopic interventions were required.
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    Primary pulmonary lymphoma: four different and unusual radiologic and clinical manifestations
    (Taylor & Francis Ltd, 2017) Tanriverdi, Elif; Acat, Murat; Ozgul, Guler; Abbasli, Kenan; Gul, Sule; Yasar, Zehra; Cortuk, Mustafa
    [No abstract available]
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    A rare tumor of trachea: Inflammatory myofibroblastic tumor diagnosis and endoscopic treatment
    (Elsevier, 2014) Ozgul, Mehmet Akif; Toru, Umran; Acat, Murat; Ozgul, Guler; Cetinkaya, Erdogan; Dincer, H. Erhan; Omaygenc, Derya Ozden
    Inflammatory myofibroblastic tumors (IMTs) are rare childhood neoplasms, with benign clinical course. Although etiology of IMTs are not clear, recent studies have reported that IMT is a true neoplasm rather than a reactive or inflammatory lesion. IMTs are rarely seen in adults and tracheal involvement is also rare both in adults and also in children. We describe a 16-year old female patient who was misdiagnosed and treated as asthma in another center for a few months and presented with acute respiratory distress due to upper airway obstruction. Computerized tomography (CT) of the chest and rigid bronchoscopy revealed a mass lesion that was nearly totally obliterating tracheal lumen. Bronchoscopic resection was performed under general anesthesia and the final pathological diagnosis was tracheal IMT. (C) 2014 The Authors. Published by Elsevier Ltd.
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    A RARE TUMOUR OF TRACHEA: INFLAMMATORY MYOFIBROBLASTIC TUMOUR DIAGNOSIS AND ENDOSCOPIC TREATMENT
    (Wiley-Blackwell, 2014) Ozgul, Mehmet Akif; Toru, Umran; Acat, Murat; Ozgul, Guler; Cetinkaya, Erdogan; Dincer, H. Erhan; Omaygenc, Derya Ozden
    [No abstract available]