Guray Demir1, Ali Tekin2, Hande Tekin3. 1. Department of Anesthesiology and Reanimation, Bakirkoy Dr. Sadi Konuk Training and Research Hospital, Istanbul, Turkey. 2. Department of Pediatric Surgery, Tatvan State Hospital, Bitlis, Turkey. 3. Department of Pediatrics, Tatvan State Hospital, Bitlis, Turkey.