PT - JOURNAL ARTICLE AU - Hunter, J D TI - Ventilator associated pneumonia AID - 10.1136/pgmj.2005.036905 DP - 2006 Mar 01 TA - Postgraduate Medical Journal PG - 172--178 VI - 82 IP - 965 4099 - http://pmj.bmj.com/content/82/965/172.short 4100 - http://pmj.bmj.com/content/82/965/172.full SO - Postgrad Med J2006 Mar 01; 82 AB - Hospital acquired or nosocomial infections continue to be an important cause of morbidity and mortality. The critically ill patient is at particular risk of developing intensive care unit acquired infection, with the lungs being especially vulnerable. Nosocomial bacterial pneumonia occurring after two days of mechanical ventilation is referred to as ventilator associated pneumonia, and is the most common nosocomial infection seen in the intensive care unit. Intubation of the trachea and mechanical ventilation is associated with a 7-fold to 21-fold increase in the incidence of pneumonia and up to 28% of patients receiving mechanical ventilation will develop this complication. Its development is associated with an attributable increase in morbidity and mortality. The establishment of an accurate diagnosis of ventilator associated pneumonia remains problematic and as yet there is still no accepted “gold standard” for diagnosis. The responsible pathogens vary according to case mix, local resistance patterns, and methodology of sampling. However, there is general agreement that rapid initiation of appropriate antimicrobial therapy improves outcome.