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Table 4 Data of electric impedance tomography

From: Evaluation of regional ventilation by electric impedance tomography during percutaneous dilatational tracheostomy in neurocritical care: a pilot study

Patient number RVD SD % Pre-post
PDT
CW/CL
ΔEELI % of pre PDT Time open trachea s C static
ml/cmH2O
SpO2%
Pre PDT Post PDT Pre
PDT
Post
PDT
Pre
PDT
Post
PDT
4 9 6 18 2 29 26 46 38 100 100
5 10 7 10 18 12 50 100 160 100 100
6 7 7 21 5 −25 170 34 33 99 100
7 7 8 26 12 12 17 76 78 96 96
9 7 9 29 1 50 15 134 115 90 94
10 4 5 60 0 16 17 126 120 98 98
  1. PDT Percutaneous dilatational tracheostomy, RVD SD Regional ventilation delay standard deviation, CW Compliance win, CL Compliance loss, ΔEELI End-expiratory lung impedance change, s Second, C Compliance, SpO2 Pulse oximetry