Diaphragm Function After Reversal of Rocuronium-induced Neuromuscular Blockade With Sugammadex or Neostigmine in Children

Inclusion Criteria: * Patients between the ages of 2 and 7 who are scheduled for surgery lasting more than 1 hour under general anesthesia using a neuromuscular blocking agent Exclusion Criteria: * Patients with a history of severe respiratory disease with a high risk of bronchoconstriction * Patients with abnormal findings on preoperative chest radiography such as severe atelectasis, pneumothorax, pleural effusion, or pneumonia. * Patients with severe renal or liver disease, or neuromuscular disease * Patients with a history of allergy to drugs (sugammadex, rocuronium neostigmine) * Patients with significant bradycardia * Patients scheduled for surgery where estimated blood loss during surgery is expected to be more than 30% of estimated blood volume, or cases where fluid imbalance is expected to be severe during surgery * patients scheduled for lung parenchyme/diaphragm/thoracic surgery * other researchers considered it inappropriate to participate in research.