Ventilator-Associated Pneumonia (VAP) is a common complication in patient who is on ventilator with the prevalence is about 25-50 percent. It also impacts on hospitalized duration, treatment cost as well as mortality. Subject: To analysis the etiologies of ventilator- associated pneumonia. Objects and method: from 9/2009 to 8/2011 at the Emergency Department and ICU Bach Mai hospital, there were 77 patients who had met all the criteria selected to the study. The results: The most of causes were Acinobacter baumaniae (account for 40 percent), the others were Pseudomonas aeruginosa, Klebsiella pneumoniae, and Staphylococcus aureus. The major causes of late-onset VAP are Acinetobacter baumanni and Pseudomonas aeruginosa, which are high resistant with variety kinds of antibiotics such as: Ampicillin+Sulbactam, Amikacin, Ceftazidime and Ciprofloxacin
Conclusions: The major cause of VAP are Acinetobacter and Pseudomonas aeruginosa, which are highly resistant stains.