The Comparison Effects of Two Methods of (Adaptive Support Ventilation Minute Ventilation: 110 and Adaptive Support Ventilation Minute Ventilation: 120) on Mechanical Ventilation and Hemodynamic Changes and Length of Being in Recovery in Intensive Care Units

Abstract

BACKGROUND: The conventional method for ventilation is supported by accommodative or adaptive support ventilation (ASV) that the latter method is done with two methods: ASV minute ventilation (mv): 110 and ASV mv: 120. Regarding these methods this study compared the differences in duration of mechanical ventilation and hemodynamic changes during recovery and length of stay in Intensive Care Units (ICU). MATERIALS AND METHODS: In a clinical trial study, forty patients candidate for ventilation were selected and randomly divided into two groups of A and B. All patients were ventilated by Rafael ventilator. Ventilator parameters were set on ASV mv: 110 or ASV mv: 120 and patients were monitored on pulse oximetry, electrocardiography monitoring, central vein pressure and arterial pressure. Finally, the data entered to computer and analyzed by SPSS software. RESULTS: The time average of connection to ventilator in two groups in modes of ASV mv: 110 and 120 was 12.3 +/- 3.66 and 10.8 +/- 2.07 days respectively, and according to t-test, there was no significant difference between two groups (P = 0.11). The average of length of stay in ICU in two groups of 110 and 120 was 16.35 +/- 3.51 and 15.5 +/- 2.62 days respectively, and according to t-test, there found to be no significant difference between two groups (P = 0.41). CONCLUSION: Using ASV mv: 120 can decrease extubation time compared with ASV mv: 110. Furthermore, there is not a considerable side effect on hemodynamic of patients.