Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Patient Characteristics
Values are mean ± SD or number. The subjects of each group are 20 patients, respectively. ASA: American Society of Anesthesiologists, ZEEP, 3 PEEP, 5 PEEP, 7 PEEP, 10 PEEP: positive end-expiratory pressure with 0 cmH2O, 3 cmH2O, 5 cmH2O, 7 cmH2O, 10 cmH2O.
