TY - JOUR
T1 - Comparison of breathing comfort during weaning with two ventilatory modes
AU - Knebel, Ann R.
AU - Janson-Bjerklie, Susan L.
AU - Malley, James D.
AU - Wilson, Alyson G.
AU - Marini, John J.
PY - 1994/1
Y1 - 1994/1
N2 - In twenty-one patients ventilated for ≥ 3 days, we compared similar levels of partial support provided by synchronized intermittent mandatory ventilation (SIMV) and pressure support ventilation (PSV) in terms of breathing comfort. On a single day, eligible subjects experienced, in random order, both SIMV and PSV weaning protocols (sequential 20% reductions in support at timed intervals) separated by a 1 to 3 h rest. Breathing comfort was defined by subjective ratings of dyspnea and anxiety. Subjects reported significant levels of preweaning dyspnea and anxiety despite resting for at least 6 h. Dyspnea and anxiety were not significantly different between the two methods at any level of support. Our findings suggest that dyspnea and anxiety are higher than expected on 'full' ventilator support, and that comfort may not differ between PSV and SIMV during active withdrawal of machine support.
AB - In twenty-one patients ventilated for ≥ 3 days, we compared similar levels of partial support provided by synchronized intermittent mandatory ventilation (SIMV) and pressure support ventilation (PSV) in terms of breathing comfort. On a single day, eligible subjects experienced, in random order, both SIMV and PSV weaning protocols (sequential 20% reductions in support at timed intervals) separated by a 1 to 3 h rest. Breathing comfort was defined by subjective ratings of dyspnea and anxiety. Subjects reported significant levels of preweaning dyspnea and anxiety despite resting for at least 6 h. Dyspnea and anxiety were not significantly different between the two methods at any level of support. Our findings suggest that dyspnea and anxiety are higher than expected on 'full' ventilator support, and that comfort may not differ between PSV and SIMV during active withdrawal of machine support.
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U2 - 10.1164/ajrccm.149.1.8111572
DO - 10.1164/ajrccm.149.1.8111572
M3 - Article
C2 - 8111572
AN - SCOPUS:0027980171
SN - 1073-449X
VL - 149
SP - 14
EP - 18
JO - American journal of respiratory and critical care medicine
JF - American journal of respiratory and critical care medicine
IS - 1
ER -