Positive end-expiratory pressure during pneumoperitoneum changes the Electrical Impedance Tomography ventilation distribution in pediatric patients.

INTERVENTION: In pediatric patients, randomized to change PEEP from 0 to 5 cmH2O during pneumoperitoneum (P5 group) or from 0 to 10 cmH2O (P10 group) and evaluate lung compliance and percentage of ventilation distribution using EIT system CONDITION: Pediatric patients (2‐12 years old) undergoing laparoscopic inguinal hernia surgery PRIMARY OUTCOME: Change in dorsal ventilation rate 10 minutes after changing to PEEP 5 or PEEP 10, using the baseline before the start of surgery SECONDARY OUTCOME: Change in dorsal ventilation rate 5 minutes after the start of pneumoperitoneum, using the baseline before the start of surgery as the baseline.; Driving pressure, peak pressure, alveolar plateau pressure, static compliance, and vital signs at each measurement point INCLUSION CRITERIA: 1. children between 2 and 12 years of age 2. patients diagnosed with inguinal hernia who will undergo laparoscopic surgery (scheduled surgery) under general anesthesia 3. who are scheduled to be intubated with muscle relaxants 4. who will undergo surgery in the supine position 5. who have obtained consent for participation in this study by signing a consent form by a surrogate