Air-Q and Proseal Laryngeal Mask in Elderly Patients

Inclusion Criteria: * 65-90 year-old patients * American Society of Anesthesiologist Physical Status classification I-III, * Undergoing an elective operation under general anesthesia in our hospital Exclusion Criteria: * Predicted difficult airway (Mallampati class 4, mouth opening \< 3 cm, or thyromental distance \< 6 cm) * body mass index (BMI) \> 40 kg/m2 * Patients with a high risk of aspiration (e.g., history of gastrectomy, -gastroesophageal reflux disease, or hiatal hernia), * Unstable vital signs * Cervical spine problems, Respiratory complications (e.g. recent pneumonia).