Memduh Yetim1, Sukru Tekindur2, Y Emrah Eyi3. 1. Van Military Hospital, Van, Turkey. 2. Department of Anesthesiology and Reanimation, Gulhane Military Medical Academy, Ankara, Turkey. Electronic address: stekindur@hotmail.com. 3. Department of Emergency Medicine, Gulhane Military Medical Academy, Ankara, Turkey.