| Patient no | Age (yr) | Height (cm) | Weight (kg) | BMI | ASA | Modification of ES at LOR | 
      
        | 1 | 32 | 165 | 109 | 40.4 | II | Anterior displacement of posterior dura and widening    of ES | 
      
        | 2 | 27 | 156 | 99 | 41.2 | II | None | 
      
        | 3 | 30 | 160 | 105 | 41.0 | II | Anterior displacement of posterior dura and widening    of ES | 
      
        | 4 | 28 | 165 | 112 | 41.5 | II | None | 
      
        | 5 | 39 | 167 | 115 | 41.1 | II | Anterior displacement of posterior dura and widening    of ES | 
      
        | 6 | 30 | 159 | 107 | 42.8 | II | None | 
      
        | 7 | 33 | 159 | 105 | 42.0 | II | Anterior displacement of posterior dura and widening    of ES | 
      
        | 8 | 31 | 160 | 104 | 40.6 | II | Anterior displacement of posterior dura and widening    of ES | 
      
        | 9 | 30 | 170 | 120 | 40.5 | II | Anterior displacement of posterior dura and widening    of ES | 
      
        | 10 | 29 | 168 | 117 | 41.8 | II | None |