| |
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
|
- 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
- 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.
- CV, conventional ventilation; HPFV, high frequency percussive ventilation.
