Table 1

Demographic data and baseline values expressed in numbers and mean (SD). Baseline values were measured before draping

DemographicsS groupNS groupBaseline valuesS groupNS group
Sex (F/M)12/1213/11ptc co 2(mm Hg)43.4 (4.4)42.5 (4.6)
Age (years)72.8 (7.1)73.16 (7.2)RR (/min)15.2 (2.1)14.5 (1.7)
Body weight (kg)69.14 (11.5)75.7 (13.3)Spo 2 (%)95.6 (0.9)95.3 (0.9)
Height (cm)166.6 (7.2)168.8 (9.3)MAP (mm Hg)104.8 (11.1)105.3 (12.3)
ASA physical status2.0 (0.3)2.0 (0.3)HR (beats/min)66.2 (12.5)70.0 (13.2)
  • S group = continuous suction under the drapes; NS group = no suction under the drapes; ptc co 2 = partial pressure of carbon dioxide; RR = respiratory rate; Spo 2 = peripheral oxygen saturation; MAP = mean arterial blood pressure; HR = heart rate.