Article

Objective: To investigate the effect of standing with assistance
of the tilt table on ventilatory parameters and arterial
blood gases in intensive care patients.
Design: Consecutive sample.
Setting: Tertiary referral hospital.
Participants: Fifteen adult patients who had been intubated
and mechanically ventilated for more than 5 days (3 subjects
successfully weaned, 12 subjects being weaned).
Intervention: Passive tilting to 70° from the horizontal for
5 minutes using a tilt table.
Main Outcome Measures:
Minute ventilation (Vÿ E), tidal
volume (Vÿ T), respiratory rate, and arterial partial pressure of
oxygen (PaO2) and carbon dioxide (PaCO2).
Results: Standing in the tilted position for 5 minutes produced
significant increases in Vÿ E (P
.001) and produced both
increases in respiratory rate (P
.001) and VT (P.016) compared
with baseline levels. These changes were maintained
during the tilt intervention and immediately posttilt. Twenty
minutes after the tilt, there were no significant changes in
ventilatory measures of Vÿ E, VT, or arterial blood gases PaO2
and PaCO2 compared with initial values.
Conclusions: Standing for 5 minutes with assistance of a tilt
table significantly increased ventilation in critical care patients
during and immediately after the intervention. There were no
improvements in gas exchange posttilt. Using a tilt table provided
an effective method to increase ventilation in the short
term

Langue : ANGLAIS