Introduction: Chest pain (CP) is a common reason for pediatric emergency department presentation. The possibility of heart originated pain frightens the family. There is no pathology in most of the cases. Here, we aimed to evaluate the etiological causes of children and adolescents who admitted to the pediatric emergency service with complaint of CP. Materials and Methods: Two hundred ninety eight cases aged between 8 and 18 years who admitted to the emergency service with GA complaints between February 2018 and 2019 were included in the study. Demographic characteristics, physical examinations, laboratory findings and diagnoses of the patients were analyzed retrospectively. Results: The most common causes of CP were determined as idiopathic (50.3%), musculoskeletal system (24.1%) and psychogenic (10.2%). Most of the patients were over 12 years old (n=169, 58.7%) and female (n=155, 53.8%). There was no significant difference in terms of age and gender (p=0.06, p=0.07).The cardiac causes was found to be 4.5% of the all causes. The most common cardiac causes were mitral valve prolapse and mitral insufficiency. Psychogenic causes were higher in females, and psychogenic causes were anxiety, panic attack and depression, respectively. Conclusion: Most of CP in children is due to non-cardiac causes. Although the most common cause of GA is idiopathic, the incidence of psychogenic causes in CP etiology is gradually increasing in adolescents. As a result of detailed history, physical examination and laboratory tests, families should be informed and felt comforted about the diagnosis of the patients. ÖzGiriş: Göğüs ağrısı (GA), çocuk acil servisine başvurunun yaygın bir nedenidir. Ağrının kalp kökenli olma ihtimali aileyi telaşlandırmaktadır. Olguların çoğunda herhangi bir patoloji saptanmamaktadır. Çalışmamızda çocuk acil servisine başvuran çocuk ve adölesanların GA nedenlerini değerlendirmeyi amaçladık. Gereç ve Yöntem: Şubat 2018-2019 tarihleri arasında GA şikayeti ile acil servise başvuran 8-18 yaş arası 298 olgu çalışmaya dahil edildi. Hastaların demografik özellikleri, fizik muayeneleri, laboratuvar bulguları ve tanıları retrospektif olarak incelendi. Bulgular: GA'nın en sık nedenleri idiyopatik (%50,3), kas-iskelet sistemi (%24,1) ve psikojenik (%10,2) olarak belirlendi. Hastaların çoğu 12 yaşın üzerinde (n=169, KeywordsChest pain, adolescent, psychogenic Anah tar ke li me ler Göğüs ağrısı, adölesan, psikojenik

Devices may be used for special purposes different than their production purpose. For instance, Amplatzer Ductal Occluder is actually designed for duct closure and its usage for closing defects other than ductus is named as off-label. The aim of this study is to emphasize off-label use of device: not only for PDA and VSD but also for other various defects. This study is designed retrospectively, performed by the evaluation catheterization records of patients in whom ADO II and ADO II-AS devices were used in Erciyes University Medical Faculty Children Hospital, Pediatric Cardiology Department between 2011 and 2018. Patients’ demographic criteria: age, weight at the time of procedure was gathered. The diagnosis, size of device, follow-up period and complications were also noted. From April 2011 to March 2018, a total of 121 patients underwent transcatheter closure by ADO II and 66 patients by ADO II AS. The number of PDA closure with ADO II was 48; with ADO II AS were 62. Rest of the procedures were all off-label. Types of off-label procedures performed were: VSD closure, residual mitral cleft closure, Aorta-Right atrium tunnel closure, pulmonary arteriovenous fistula occlusion, aorta-pulmonary window closure, and occlusion of the artery feeding accessory lobe in scimitar syndrome, Gerbode defect occlusion. Up to our knowledge; this study includes the largest pediatric case series with various different congenital heart defects which were closed with ADO-II. Also our ADO-II occluded VSD case series is one of the largest series in the literature with almost 6 years’ follow-up. We believe in that ADO-II device may be an alternative in percutaneous closure of various rare heart defects. It is used successfully for non-ductal defects with low complication and high compliance rates.