Use of an Automated Ventilation Mode in Chronic Obstructive Pulmonary Disease: A Randomized Controlled Trial

Background/aim: Prolonged mechanical ventilation is a clinical condition that leads to higher complication rates and a longer stay in the intensive care unit. Shortening the duration of mechanical ventilation is one of the main goals of intensive care. In this study we aim to evaluate a fully closed loop mode, INTELLiVENT (R)- ASV (R), in ventilating chronic obstructive pulmonary disease (COPD) patients in terms of ventilation duration and workload of clinicians when compared with a conventional mode. Methods: COPD patients who followed up in invasive mechanic ventilation (IMV) were randomized into INTELLiVENT (R)-ASV (R) or P-ACV. Ventilation data were recorded with a dedicated software connected to the ventilator. Duration of mechanical ventilation and weaning, number of manual and automatic settings of the ventilator and other clinical endpoints were compared between the two groups. Results: IMV duration was found to be lower in the INTELLiVENT (R)-ASV (R) group [1.9 (1.0-3.8) vs. 3.0 (1.95.2) days, p=0.02]. The number of manual changes to ventilator settings and arterial blood gas analyses per day were significantly lower in the INTELLiVENT (R)-ASV (R) group than in the P-ACV group [1.2 (0.2-1.7) vs. 6.8 (4.6-8.2), p<0.001 and 1.38 (1.03-2.06) vs. 2.09 (1.58-7.74), p <0.05 respectively]. Conclusion: The use of closed-loop mechanical ventilation may reduce IMV duration and the workload of clinicians and respiratory therapists.