Comparing Anesthetic Techniques in Children Having Esophagogastroduodenoscopies

Inclusion Criteria: * Patient presenting as out-patients, scheduled to receive an anesthetic for a diagnostic EGD * Patient must be a candidate for any of the three anesthetic techniques. This decision will be made by a staff member of the Department of Anesthesiology, who is not a member of the study team and will be responsible for obtaining consent for anesthesia * Patient must be between ages 1 and 12 years (inclusive) * Patient must be American Society of Anesthesiology (ASA) class I or II; * Eosinophilic esophagitis (EE) patients classified as an ASA III status for their EE diagnosis only * Patient must have fasted according to CCHMC policy * Patient's legally authorized representative has given written informed consent to participate in the study and, when appropriate, the subject has given assent to participate Exclusion Criteria: * Patients less than a year old and greater than 12 years old * Patients undergoing therapeutic upper endoscopy * Patients with an ASA physical status III or greater (other than EE patients) * Patients with history of allergy to propofol, any other drug in the protocol, or eggs (exclusive of egg allergies identified only by skin testing or manifested only by gastrointestinal symptoms) * Patients with personal or family history of malignant hyperthermia * Obese patients (Body mass index more than 95th percentile for age) * Patients with significant airway abnormalities (e.g., trisomy 21, craniofacial syndromes, sub-glottic stenosis, trache…