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Table 1 Oxygenation and haemodynamic improvement

From: Haemodynamics and oxygenation improvement induced by high frequency percussive ventilation in a patient with hypoxia following cardiac surgery: a case report

  CV HFPV after 2 hours HFPV after 6 hours HFPV after 12 hours CV after HFPV
Ph 7.51 7.48 7.44 7.4 7.41
pCO2(mmHg) 49 47 46 43 45
PaO2 (mmHg) 89 190 189 145 140
FiO2(%) 1 1 0.8 0,6 0.6
RVSWI (g-m/m2/beat) 19 14 7 7 10
LVSWI (g-m/m2/beat) 28 17 16 17 21
PVRI (dynes•sec/cm5/m2) 267 190 192 195 240
PAWP (mmHg) 32 24 25 25 30
CI 2,7 2,7 2,7 2,6 2,5
  1. PaO2 rose from 90 to 190 mmHg with the same fractional inspiratory oxygen (FiO2) and positive end expiratory pressure level of conventional ventilation. Right ventricular stroke work index (RVSWI) lowered from 19 to 7
  2. g-m/m2/beat, pulmonary vascular resistance index (PVRI) from 267 to 190 dynes•sec/cm5/m2, left ventricular stroke work index (LVSWI) from 28 to 16 g-m/m2/beat, pulmonary artery wedge pressure (PAWP) from 32 to 24 mmHg with a lower mean airway pressure than conventional ventilation. Cardiac index (2.7 L/min/m2) and ejection fraction (EF) of 27% did not change.
  3. CV, conventional ventilation; HPFV, high frequency percussive ventilation.