Clinical Research Directory

Inclusion Criteria: * Childern younger than 2 years old who are scheduled to undergo surgery under general anesthesia * American Society of Anesthesiologists Physical Status 1 or 2 Exclusion Criteria: * History of hypersensitivity to rocuronium or any anesthetics * Presence of cardiovascular or genitourinary disease * Presence of severe renal dysfunction or in need of dialysis * Presence of severe hepatic dysfunction or coagualtion disorder * Current state of administration of neuromuscular blocking agent on admission to operating room * Concurrent use of any medications that affect the activity of neuromuscular blocking agents * History of malignant hyperthermia * Refusal to enroll in the study by one or more parents * Presence of any other reasons that investigator regards inappropriate to enroll in the study.