Serdar Onat
Dicle University
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The Annals of Thoracic Surgery | 2003
Cemal Özçelik; Ilhan Inci; Özgür Nizam; Serdar Onat
BACKGROUND Progression of empyema, with the development of fibrinous adhesions and loculations, makes simple drainage difficult or impossible. The appropriate management remains controversial. Intrapleural fibrinolytic treatment to facilitate drainage of loculated empyema instead of open thoracotomy has been advocated since the 1950s. The aim of this study was to assess the effectiveness of intrapleural fibrinolytic treatment in postpneumonic pediatric empyemas. METHODS In our clinic, we used intrapleural fibrinolytic agents in 72 pediatric patients with multiloculated empyema between 1994 and 2002. Streptokinase, 250,000 U in 100 mL of 0.9% saline solution (59 patients), and urokinase, 100,000 U in 100 mL of 0.9% saline solution (13 patients), were instilled daily into the chest tube, and the tube was clamped for 4 hours followed by suction. This treatment was continued daily for 2 to 10 days until resolution was demonstrated by chest radiograms or computed chest tomography. RESULTS The rate of drainage after fibrinolytic treatment was increased 73.77%. Treatment was ineffective in 14 (19.44%) of 72 patients who underwent fibrinolytic instillation. Treatment was discontinued because of allergic reaction and pleural hemorrhage in 1 patient, and because of development of bronchopleural fistula in another one. The regimen was completely successful in 43 (59.72%) patients, and partially successful in another 15 (20.83%). Twelve of those patients who had failure eventually required decortication and recovered completely. One patient died of sepsis and pleural hemorrhage; another patient died because of food aspiration. CONCLUSIONS In all patients with loculations except those with a bronchopleural fistula, intrapleural fibrinolytic treatment should be tried. Thus, the majority of children with loculated empyemas can be treated successfully without invasive interventions, such as thoracoscopic debridements or open surgery.
Journal of Cardiothoracic Surgery | 2010
Serdar Onat; Refik Ülkü; Kemal M Cigdem; Alper Avci; Cemal Ozcelik
BackgroundWe reviewed our experience with non-iatrogenic traumatic cervical esophageal perforations, paying particular attention to factors affecting the outcome of such cases.MethodsIn total, 30 patients treated surgically between 1980 and 2008 for non-iatrogenic traumatic cervical esophageal perforation in our clinic were reviewed.ResultsThere were 25 male and 5 female patients with a median age of 27.5 years. The type of injury was external trauma in 21 (70%) patients and endoluminal injury in the remaining 9 (30%) patients. The mechanism of injury was gunshot in 16 patients, stabbing in 4, falling in 1 (extraluminal injury), and foreign body in 9 (endoluminal injuries). The overall mortality rate was 16.6% (5/30). The mortality rate for extraluminal injuries was 19%, and for endoluminal injuries was 11.1%. Mortality in patients treated within 24 h of sustaining injury was substantially less than in those for whom diagnosis and treatment were delayed (12.5 and 21.4%, respectively). The mortality rate was 33.3% (3/9) for patients with tracheal injuries and 9.5% (2/21) for those without tracheal injuries.ConclusionsA treatment delay greater than 24 h, the presence of tracheal injury, or extraluminal perforation significantly affected the outcome of surgically treated non iatrogenic traumatic cervical esophageal perforation.
Pediatrics International | 2008
Refik Ülkü; Serdar Onat; Cemal Özçelik
Background: Congenital lobar emphysema (CLE) is a rare anomaly of lung development that usually presents in the neonatal period with respirator distress and pulmonary lobar hyperinflation. It is commonly confused with pneumothorax. The aim of the present paper was to review the authors’ experience in order to emphasize the importance of differential diagnosis with pneumothorax.
Asian Cardiovascular and Thoracic Annals | 2006
Cemal Özçelik; Serdar Onat; Mehmet Yaldiz; Zerrin Ozcelik
Pulmonary angiosarcomas are usually secondary tumors, and only a few primary cases have been reported. We report a unique case of epithelioid angiosarcoma presenting as a solitary mass in the right upper lobe with pulmonary hemorrhage. Because of its epithelioid histology, this tumor may resemble a carcinoma or a variety of vascular lesions with epithelioid endothelial cells. Therefore, the diagnosis of epithelioid angiosarcoma should be based on immunohistochemical staining.
Revista Da Sociedade Brasileira De Medicina Tropical | 2016
Recep Tekin; Serdar Onat; Rojbin Ceylan Tekin
A 15-year-old girl was admitted with a 2-month history of early satiety, abdominal pain, nausea, and progressive dyspnea. Abdominal examination revealed a markedly distended abdomen. The patients family lived in a region endemic for hydatid disease and her brother had a hydatic cyst in the liver. Serum immunoglobulin G (IgG) against Echinococcus granulosus was positive (titer 1/1,280) using the immunofl uorescence assay test, and eosinophilia was observed in a peripheral blood sample. Postero-anterior chest radiograph showed multiple irregular opacities in both lung fields (Figure A). Thoraco-abdominal computed tomography (CT) revealed multiple thin-walled cystic lesions in the lungs, liver, spleen, kidney, and right iliacus and gluteus maximus muscle (Figure B). Based on the clinical, laboratory, and radiological fi ndings, disseminated hydatid disease was diagnosed. The patient received a prolonged course of albendazole 15mg/kg/day (4 weeks treatment, 2 weeks non-treatment periods) with good clinical evolution. She received only medical treatment because of the multiple organ involvement. Hydatid cyst disease is an endemic parasitic infection caused by Echinococcus granulosus, and is a major public health problem in Mediterranean countries(1). Hydatid disease should be kept in mind in the differential diagnosis of multiple cysts in patients living in endemic areas(1) (2). Early recognition of hydatid cysts cases is critical to prevent complications(3).
The Annals of Thoracic Surgery | 2008
Serdar Onat; Refik Ülkü; Alper Avci; Bulent Mizrak; Cemal Özçelik
Primary tumors of the sternum are rare and most of them are malignant. Benign lesions are typically chondromas, bone cysts, or hemangiomas. Among these tumors, hemangiomas are extremely rare. We report a rare case of hemangioma of the sternum. The patient was successfully treated with complete resection of the tumor and sternum stability was obtained by polypropylene mesh and methylmethacrylate.
Pediatrics International | 2004
Sevval Eren; Fuat Gürkan; Akın Eraslan Balci; Refik Ülkü; Serdar Onat; M. Nesimi Eren
Abstract Background : The purpose of the present study was to investigate the etiological factors, symptomatology, management and outcome of spontaneous pneumothorax in children aged <15 years.
Medical Science Monitor | 2017
Cihan Akgul Ozmen; Serdar Onat
Background The lungs are the most common site of hydatid cysts in children. Rupture is the main complication of cysts causing morbidity and mortality. In this study we aimed to comprehensively describe the CT signs for cysts and analyze the relationship of cyst ruptures to the diameter and location of cyst. Material/Methods A total of 145 cysts from 102 patients, aged 17 years or younger, who underwent a multi-detector computed tomography (MDCT) evaluation and had surgically proven pulmonary hydatid disease were included retrospectively. The CT images were analyzed for radiologic findings and signs of cyst rupture. Results The cysts had a mean diameter of 5.45±3.03 cm. Most of the patients had a solitary cyst (70.6%). The most common lobes involved were the lower lobes (58.6%). Peripherally located cysts were more common than central cysts. The overall number of ruptured cysts was 69 (47.5%). The most common sign was the waterlily sign with a prevalence of 24.6%. After exclusion of cysts of 1 cm, the mean cyst diameter was 6.23±2.83 cm in the unruptured group and 5.02±2.80 cm in the complete ruptured group (p=0.020). The mean cyst diameter was 6.38±3.11 cm for centrally located cysts, and 4.31±2.37 cm for peripherally located cysts (p<0.0001). Conclusions Pulmonary hydatid cysts commonly presents as solitary cysts with a predilection for lower lobes and the peripheral regions of the lung. Peripherally located cysts are more common but smaller than centrally located cysts. Radiologists should also be aware of atypical imaging findings of cyst rupture, and radiologic signs should be explored during radiologic evaluation.
Therapeutics and Clinical Risk Management | 2017
Cihan Akgul Ozmen; Serdar Onat; Delal Aycicek
Introduction Chest trauma may be blunt or penetrating and the chest is the third most common trauma region. It is a significant cause of mortality. Multidetector computed tomography (MDCT) has been an increasingly used method to evaluate chest trauma because of its high success in detecting tissue and organ injuries. Herein, we aimed to present MDCT findings in patients with blunt and penetrating chest trauma admitted to our department. Methods A total of 240 patients admitted to the emergency department of our hospital between April 2012 and July 2013 with a diagnosis of chest trauma who underwent MDCT evaluations were included. Most of the patients were male (83.3%) and victims of a blunt chest trauma. The images were analyzed with respect to the presence of fractures of bony structures, hemothorax, pneumothorax, mediastinal organ injury, and pulmonary and vascular injuries. Results MDCT images of the 240 patients yielded a prevalence of 41.7% rib fractures, 11.2% scapular fractures, and 7.5% clavicle fractures. The prevalence of thoracic vertebral fracture was 13.8% and that of sternal fracture was 3.8%. The prevalence of hemothorax, pneumothorax, pneumomediastinum, and subcutaneous emphysema was 34.6%, 62.1%, 9.6%, and 35.4%, respectively. The prevalence of rib, clavicle, and thoracic vertebral fractures and pulmonary contusion was higher in the blunt trauma group, whereas the prevalence of hemothorax, subcutaneous emphysema, diaphragmatic injury, and other vascular lacerations was significantly higher in the penetrating trauma group than in the blunt trauma group (p<0.05). Conclusion MDCT images may yield a high prevalence of fracture of bony structures, soft tissue lacerations, and vascular lesions, which should be well understood by radiologists dealing with trauma.
Therapeutics and Clinical Risk Management | 2017
Serdar Onat; Gungor Ates; Alper Avci; Tekin Yildiz; Ali Birak; Cihan Akgul Ozmen; Refik Ülkü
Background Mediastinoscopy is a good method to evaluate mediastinal lesions. We sought to determine the current role of mediastinoscopy in the investigation of non-lung cancer patients with mediastinal lymphadenopathy. Materials and methods We retrospectively reviewed clinical parameters (age, gender, histological diagnosis, morbidity, mortality) of all patients without lung cancer who consecutively underwent mediastinoscopy in Hospital of Faculty of Medicine of Dicle University between June 2003 and December 2016. Results Two-hundred twenty nine patients without lung cancer who underwent mediastinoscopy for the pathological evaluation of mediastinum during the study period were included. There were 156 female (68%) and 73 male (32%) patients. Mean age was 52.6 years (range, 16 to 85 years). Mean operative time was 41 minutes (range, 25 to 90 minutes). Mean number of biopsies was 9.3 (range, 5 to 24). Totally, 45 patients (19.6%) had previously undergone a nondiagnostic bronchoscopic biopsy such as transbronchial needle aspiration or endobronchial ultrasound-guided transbronchial needle aspiration. Mediastinoscopy was diagnostic for all patients. Diagnosis included sarcoidosis (n=100), tuberculous lymphadenitis (n=66), anthracosis lymphadenitis (n=44), lymphoma (n=11) metastatic carcinoma (n=5), and Castleman’s disease (n=1); there was a diagnosis of silicosis in one patient and tymoma in one patient. Neither operative mortality nor major complication developed. The only minor complication was wound infection which was detected in three patients. Conclusion Although newer diagnostic modalities are being increasingly used to diagnose mediastinal diseases, mediastinoscopy continues to be a reliable method for the investigation of mediastinal lesions.