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Table 1 Pressure support ventilation and NAVA

From: Severe diaphragmatic dysfunction with preserved activity of accessory respiratory muscles in a critically ill child: a case report of failure of neurally adjusted ventilatory assist (NAVA) and successful support with pressure support ventilation (PSV)

  Ventilation 0’ 3’ 6’ 9’ 12’ 15’
Vt [ml] PS 150 180 165 170 170 180
NAVA 80 88 110 95 100 86
RR [bpm] PS 16 18 17 16 16 17
NAVA 15 22 20 22 24 24
MV [l/min] PS 2.7 2.7 2.7 2.8 2.8 2.5
NAVA 1.2 2.4 3 3.2 2.5 2.8
MAP [cmH2O] PS 12 12 12 12 12 12
NAVA 8 7 10 10 7 11
EtCO2 [mmHg] PS 47 47 48 47 47 48
NAVA 49 53 52 53 55 55
EAdi max [μV] PS 1.6 1.7 2.1 1.1 1.3 1.5
NAVA 1.7 1.8 2 1.7 1.2 1.5
EAdi min [μV] PS 0.9 0.4 0.4 0.3 0.3 0.4
NAVA 0.6 0.2 0.5 0.4 0.5 0.2
HR [bpm] PS 130 129 123 123 121 117
NAVA 114 123 125 126 123 122
SBP/DBP [mmHg] PS 140/90      140/96
NAVA 110/99      150/110
  1. Definition of abbreviations: PSV pressure support ventilation, NAVA neurally adjusted ventilatory assistance, VT tidal volume, RR respiratory rate, MV minute ventilation, MAP mean airway pressure, ETCO2 end tidal carbon dioxide, EAdi electrical activity of the diaphragm, HR heart rate, SBP/DBP systolic blood pressure/diastolic blood pressure