Comparison of Gastric Volume in I-gel and ProSeal Laryngeal Mask Airways

Inclusion Criteria: * Patients with an ASA (American Society of Anesthesiologists) physical status score of 1 to 3 * undergoing urological surgeries performed with I-gel or ProSeal LMA Exclusion Criteria: * Difficult airway * Clinically significant upper respiratory tract infection * Pre-existing airway disease * Pre-existing airway disease * History of head and neck surgery * Pregnant patients * Patients with upper gastrointestinal tract disease