Department of Anesthesiology and Perioperative Medicine The First Affiliated Hospital with Nanjing Medical University Nanjing 210029 China;
Department of Anesthesiology and Perioperative Medicine The First Affiliated Hospital with Nanjing Medical University Nanjing 210029 China;
Department of Anesthesiology and Perioperative Medicine The First Affiliated Hospital with Nanjing Medical University Nanjing 210029 China;
Department of Anesthesiology and Perioperative Medicine The First Affiliated Hospital with Nanjing Medical University Nanjing 210029 China;
Department of Anesthesiology and Perioperative Medicine The First Affiliated Hospital with Nanjing Medical University Nanjing 210029 China;
Positive end-expiratory pressure; Laparoscopic surgery; Hepatectomy; Central venous pressure;