Patients of controlgroup (n=43) underwent conventional open suction and case group (n=43) closed suction. After 72 hours,
patients were assessed regarding VAP using clinical pulmonary infection score (CPIS).
There was no significant difference regarding age (p=0.15) and gender (p=0.33) between the two
groups. The incidence of ventilator associated pneumonia was significantly lower in closed method
compared to the open method (p=0.016).