Comparison of patient-ventilator asynchrony during pressure support ventilation and proportional assist ventilation modes in surgical Intensive Care Unit: A randomized crossover study
| Autor: | Gaganjot Kaur, Ruchi Gupta, Sunil Katyal, Parshotam Lal Gautam, Preetveen Sandhu, Nikhil Gautam |
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| Rok vydání: | 2016 |
| Předmět: |
pressure support ventilation
business.industry Patient-ventilator dyssynchrony 030208 emergency & critical care medicine Surgical intensive care unit Pressure support ventilation Cardiorespiratory fitness Critical Care and Intensive Care Medicine Crossover study 03 medical and health sciences 0302 clinical medicine Proportional Assist Ventilation 030228 respiratory system Respiratory failure Anesthesia Breathing Medicine Weaning proportional assist ventilation business Research Article |
| Zdroj: | Indian Journal of Critical Care Medicine : Peer-reviewed, Official Publication of Indian Society of Critical Care Medicine |
| ISSN: | 1998-359X 0972-5229 |
| Popis: | Background: The patient-ventilator asynchrony is almost observed in all modes of ventilation, and this asynchrony affects lung mechanics adversely resulting in deleterious outcome. Innovations and advances in ventilator technology have been trying to overcome this problem by designing newer modes of ventilation. Pressure support ventilation (PSV) is a commonly used flow-cycled mode where a constant pressure is delivered by ventilator. Proportional assist ventilation (PAV) is a new dynamic inspiratory pressure assistance and is supposed to be better than PSV for synchrony and tolerance, but reports are still controversial. Moreover, most of these studies are conducted in chronic obstructive pulmonary disease patients with respiratory failure; the results of these studies may not be applicable to surgical patients. Thus, we proposed to do compare these two modes in surgical Intensive Care Unit (ICU) patients as a randomized crossover study. Aims: Comparison of patient-ventilator asynchrony between PSV and PAV plus (PAV+) in surgical patients while weaning. Subjects and Methods: After approval by the Hospital Ethics Committee, we enrolled twenty patients from surgical ICU of tertiary care institute. The patients were ventilated with pressure support mode (PSV) and PAV+ for 12 h as a crossover from one mode to another after 6 h while weaning. Results: Average age and weight of patients were 41.80 ± 15.20 years (mean ± standard deviation [SD]) and 66.50 ± 12.47 (mean ± SD) kg, respectively. Comparing the asynchronies between the two modes, the mean number of total asynchronous recorded breaths in PSV was 7.05 ± 0.83 and 4.35 ± 5.62, respectively, during sleep and awake state, while the same were 6.75 ± 112.24 and 10.85 ± 11.33 in PAV+. Conclusion: Both PSV and PAV+ modes of ventilation performed similarly for patient-ventilator synchrony in surgical patients. In surgical patients with acute respiratory failure, dynamic inspiratory pressure assistance modalities are not superior to PSV with respect to cardiorespiratory function. |
| Databáze: | OpenAIRE |
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