Table 1 Effect of different levels of pressure support on study parameters
Study parameterSIMV (SIMV)SIMV + partial PSV (PSmin)SIMV + full PSV (PSmax)
Mean (SD) exhaled tidal volume(ml/kg)3.9 (0.72)5.2 (1.29)*6.7 (0.69)*†
Mean (SD) total Ve (ml/kg/min)270 (47)332 (53)*392 (63)*†
Mean (SD) total RR (breaths/min)72 (5.6)65 (8.6)*59 (9.8)*†

  • *p<0.05 (PSV vs SIMV).

  • †p<0.05 (partial vs full PSV).

  • Ve, minute ventilation; PSV, pressure support ventilation; RR, respiratory rate; SIMV, synchronised intermittent mandatory ventilation.