METHODS	Clinical parameters were evaluated in both groups at time point 0 ( TP0 , before CO ( 2 ) insufflation ) , time point 1 ( TP1 , when intraperitoneal pressure of 12 mmHg was reached in both groups ) , time point 2 ( TP2 , 5 min after reaching intraperitoneal pressure of 12 mmHg in group P12 and of 20 mmHg in group P20 ) , and time point 3 ( TP3 , 10 min after reaching intraperitoneal pressure of 12 mmHg in group P12 and 10 min after TP1 in group P20 , when intraperitoneal pressure decreased from 20 to 12 mmHg ) .\