Effects of sevoflurane, propofol and position changes on respiratory mechanics.

This study was designed to investigate the effects of propofol, sevoflurane and position changes on respiratory mechanics. Forty patients scheduled for thyroid surgery were divided randomly into two groups; those receiving sevoflurane (group S) (n=20), and those receiving TIVA propofol (group P) (n=22). Dynamic compliance (Cdyn), peak inspiratory pressure (PIP), and respiratory resistance (Rr) values were recorded with a VenTrak respiratory monitor (Novometrix Inc.