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Table 1 Respiratory parameters before and after surgery. This table shows the respiratory parameters measured using OEP during quiet breathing before and 6 months after unilateral diaphragmatic plication

From: Chest wall mechanics before and after diaphragm plication

  Before operation 6 months  
  Mean SD Mean SD P value
Overall tidal volume (L) 0.65 0.14 0.83 0.1 <0.05
Tidal volume on the operated side (L) 0.31 0.07 0.42 0.05 <0.05
Tidal volume on the non operated side (L) 0.34 0.08 0.42 0.05 <0.05
Minute ventilation (L) 11.2 2.11 13.24 2.01 <0.05
Mean inspiratory flow (L/Sec) 0.49 0.11 0.64 0.03 <0.05
Mean expiratory flow (L/Sec) 0.31 0.07 0.34 0.07 0.11
Overall pulmonary rib cage tidal volume (L) 0.1 0.04 0.08 0.02 0.45
Overall abdominal rib cage tidal volume (L) 0.01 0.02 0.16 0.03 <0.05
Overall abdominal tidal volume (L) 0.55 0.11 0.59 0.08 0.06
Pulmonary rib cage tidal volume – non-operated side (L) 0.05 0.02 0.06 0.01 0.06
Pulmonary rib cage tidal volume – operated side (L) 0.04 0.02 0.02 0.01 0.1
Abdominal rib cage tidal volume – non- operated side (L) 0.01 0.01 0.06 0.02 <0.05
Abdominal rib cage tidal volume – operated side (L) 0 0.01 0.1 0.02 <0.05
Abdominal tidal volume – non-operated side (L) 0.28 0.06 0.3 0.05 0.08
Abdominal tidal volume – operated side (L) 0.27 0.05 0.29 0.03 <0.05