|   | 
        ZEEP (n=60) | 
        PEEP (n=64) | 
        p | 
      
      
        | Systolic Arterial Pressure <90mmHg (n) | 
        6 | 
        7 | 
        0.902 | 
      
      
        | Systolic Arterial Pressure lowering >10% (n) | 
        37 | 
        27 | 
        0.047 | 
      
      
        | Total n (%) | 
        43(71.6%) | 
        34 (53.1%) | 
        0.052 | 
      
      
        | Mean Arterial Pressure <60mmHg (n) | 
        7 | 
        8 | 
        0.894 | 
      
      
        | Mean Arterial Pressure lowering >10% (n) | 
        34 | 
        23 | 
        0.033 | 
      
      
        | Total n (%) | 
        41 (68.3%) | 
        30 (46.9%) | 
        0.026 | 
      
      
        | Systolic Arterial Pressure increasing 0-10% (n) | 
        7 | 
        11 | 
        0.537 | 
      
      
        | Systolic Arterial Pressure increasing >10% (n) | 
        2 | 
        14 | 
        0.005 | 
      
      
        | Total n (%) | 
        9 (15.0%) | 
        25 (39.1%) | 
        0.005 | 
      
      
        | Mean Arterial Pressure increasing 0-10% (n) | 
        5 | 
        8 | 
        0.643 | 
      
      
        | Mean Arterial Pressure increasing >10% (n) | 
        5 | 
        16 | 
        0.026 | 
      
      
        | Total n (%) | 
        10 (16.6%) | 
        24 (37.5%) | 
        0.017 |