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Table 1 Baseline characteristics of patients in the control group and of those in the recruitment maneuver group

From: Benefit of a single recruitment maneuver after an apnea test for the diagnosis of brain death

  Control group
(n= 27)
RM group
(n= 27)
P value
Age, years 51 ± 15 55 ± 15 0.35
Cause of brain death    
   Brain trauma 4 (15%) 8 (22%)  
   Stroke 18 (67%) 16 (59%) 0.38
   Others 5 (19%) 3 (11%)  
Sex    
   Male 19 (70%) 21 (78%) 0.76
   Female 8 (30%) 6 (22%)  
Weight, kg 76 ± 14 74 ± 13 0.54
Size, cm 173 ± 10 172 ± 9 0.89
Pulmonary disease history 1 (4%) 2 (7%) 1.00
History of smoking 8 (30%) 6 (22%) 0.75
Abnormal chest x-ray 4 (15%) 7 (26%) 0.50
Mean arterial blood pressure, mm Hg 87 ± 10 90 ± 20 0.63
Administration of catecholamine 23 (85%) 24 (89%) 1.00
Ventilatory settings    
   Tidal volume, mL 525 (500-550) 550 (500-600) 0.30
   Respiratory frequency, per minute 12 (12-14) 12 (10-14) 0.16
   Positive end-expiratory pressure, cm H2O 5 (5-5) 5 (5-5) 0.67
Duration of mechanical ventilation, hours 36 (22-48) 30 (23-48) 0.79
Duration of ventilation of more than 5 days 3 (11%) 4 (15%) 1.00
  1. Data are expressed as mean ± standard deviation (SD), as median (25th to 75th interquartiles), or as number and percentage. RM, recruitment maneuver.