Aguirre-Bermeo H, Bottiroli M, Italiano S, Roche-Campo F, Santos JA, Alonso M, Mancebo J. [Pressure support ventilation and proportional assist ventilation during weaning from mechanical ventilation].
Med Intensiva 2013;
38:363-70. [PMID:
24144679 DOI:
10.1016/j.medin.2013.08.003]
[Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2013] [Revised: 08/07/2013] [Accepted: 08/28/2013] [Indexed: 11/17/2022]
Abstract
OBJECTIVES
To compare tolerance, duration of mechanical ventilation (MV) and clinical outcomes during weaning from MV in patients subjected to either pressure support ventilation (PSV) or proportional assist ventilation (PAV).
DESIGN
A prospective, observational study was carried out.
SETTING
Intensive Care Unit.
PATIENTS
A total of 40 consecutive subjects were allocated to either the PSV or the PAV group until each group contained 20 patients. Patients were included in the study when they met the criteria to begin weaning and the attending physician decided to initiate the weaning process. The physician selected the modality and set the ventilatory parameters.
INTERVENTIONS
None.
VARIABLES OF INTEREST
Demographic data, respiratory mechanics, ventilatory parameters, duration of MV, and clinical outcomes (reintubation, tracheostomy, mortality).
RESULTS
Baseline characteristics were similar in both groups. No significant differences were observed between the PSV and PAV groups in terms of the total duration of MV (10 [5-18] vs. 9 [7-19] days; P=.85), reintubation (5 [31%] vs. 3 [19%]; P=.69), or mortality (4 [20%] vs. 5 [25%] deaths; P=1). Eight patients (40%) in the PSV group and 6 patients (30%) in the PAV group (P=.74) required a return to volume assist-control ventilation due to clinical deterioration.
CONCLUSIONS
Tolerance, duration of MV and clinical outcomes during weaning from mechanical ventilation were similar in PSV and PAV.
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