<qa>  What is the most used airway management strategy?The most used airway management strategies are different types of supraglottic airway devices SAD for transurethral resection of bladder and ureteroscopy in urological surgery . Classical laryngeal mask airway LMA-C and I-Gel SADs are being used already. The aim of this study was to evaluate and compare the performance of a new type of SAD the Baska Mask with I-gel and LMA-C regarding their insertion times, durations, perioperative complications and effects on hemodynamic parameters, peak airway pressures Paw and airway plato pressures in urological surgery as well. 