Volume support ventilation versus pressure support ventilation as a weaning mode of mechanically ventilated patients with chronic obstructive pulmonary disease

Abstract

Background A dual controlled ventilatory mode called volume support ventilation (VSV) is anew mode, which is intended to speed up weaning and encourage spontaneous breathing. The purpose of the study was to compare the effectiveness of pressure support ventilation (PSV) and VSV in weaning patients with chronic obstructive pulmonary disease (COPD) who are mechanically ventilated. Patients and methods Fifty COPD patients admitted to the respiratory ICU were enrolled. Patients were assigned randomly to either PSV or VSV as a weaning mode. Patients were checked on at intervals of 30, 60 min, and 24 h. Results of weaning and hospital outcomes were recorded. Results Compared with PSV, VSV showed significant shorter weaning duration (12.76 ± 8.02 vs. 18.56 ± 5.97 h, P=0.04). Moreover, there was a higher successful extubation rate of 80% for VSV group compared with 76% for PSV, with the same complications and death rate between the two groups. Conclusion When compared to PSV mode, VSV mode was a safer, more dependable strategy that may be used responsibly for weaning trials in COPD patients. It also has the potential to shorten ICU stays and weaning times.

Keywords

• chronic obstructive pulmonary disease; pressure support ventilation; volume support ventilation; weaning modes